This document provides instructions for disassembling and assembling a torque converter. It outlines 20 steps for assembling the torque converter including installing various bearings, races, seals, and plates. It also provides 3 steps for installing the assembled torque converter and transmission planetary into the transmission case. Required tools are listed for both procedures.
This document provides instructions for assembling and disassembling components of the torque converter and transfer gears for a 621H wheel tractor. It describes 22 steps for assembling the torque converter, including installing various bearings, seals, and fasteners in the proper order. It also describes removing and installing the transfer gears while the tractor is either off or on the chassis. The disassembly procedure describes removing bearing cages, shims, and bearings from the transfer gear case.
The document provides instructions for assembling and disassembling the torque converter of a 621H wheel tractor. It describes 22 steps for assembling the torque converter, requiring tools like a driver group, dial indicator group, and retaining ring pliers. It also describes removing and installing the transfer gears of a 621H wheel tractor, both off chassis and in chassis. The procedures include disconnecting hoses and harness assemblies, removing brackets and seals, and lifting components with lifting devices.
The document provides instructions for assembling and disassembling the torque converter of a 621H wheel tractor. It describes 22 steps for assembling the torque converter, requiring tools like a driver group, dial indicator group, and retaining ring pliers. It also describes removing and installing the transfer gears of a 621H wheel tractor, both off chassis and in chassis. The procedures include disconnecting hoses and harness assemblies, removing brackets and seals, and lifting components with lifting devices.
This document provides instructions for assembling and disassembling components of the torque converter and transfer gears for a 621H wheel tractor. It describes 22 steps for assembling the torque converter, including installing various bearings, seals, and fasteners in the proper order. It also describes removing and installing the transfer gears while the tractor is either off or on the chassis. The disassembly procedure lists 6 steps for disassembling the transfer gear case, including removing bearing cages and shims.
This document provides instructions for assembling and disassembling components of the torque converter and transfer gears for a 621H wheel tractor. It describes 22 steps for assembling the torque converter, including installing various bearings, seals, and fasteners in the proper order. It also describes removing and installing the transfer gears while the tractor is either off or on the chassis. The disassembly procedure lists 6 steps for disassembling the transfer gear case, including removing bearing cages and shims.
The document provides instructions for assembling and disassembling the torque converter of a 621H wheel tractor. It describes 22 steps for assembling the torque converter, requiring tools like a driver group, dial indicator group, and retaining ring pliers. It also describes removing and installing the transfer gears of a 621H wheel tractor, both off chassis and in chassis. The procedures include disconnecting hoses and harness assemblies, removing brackets and seals, and lifting components with lifting devices.
This document provides instructions for assembling and disassembling components of the torque converter and transfer gears for a 621H wheel tractor. It describes 22 steps for assembling the torque converter, including installing various bearings, seals, and fasteners in the proper order. It also describes removing and installing the transfer gears while the tractor is either off or on the chassis. The disassembly procedure describes removing bearing cages, shims, and bearings from the transfer gear case.
This document provides instructions for assembling and disassembling components of the torque converter and transfer gears for a 621H wheel tractor. It describes 22 steps for assembling the torque converter, including installing various bearings, seals, and fasteners in the proper order. It also describes removing and installing the transfer gears while the tractor is either off or on the chassis. The disassembly procedure describes removing bearing cages, shims, and bearings from the transfer gear case.
This document provides instructions for assembling and disassembling components of the torque converter and transfer gears for a 621H wheel tractor. It describes 22 steps for assembling the torque converter, including installing various bearings, seals, and fasteners in the proper order. It also describes removing and installing the transfer gears while the tractor is either off or on the chassis. The disassembly procedure describes removing bearing cages, shims, and bearings from the transfer gear case.
The document provides instructions for assembling and disassembling the torque converter of a 621H wheel tractor. It describes 22 steps for assembling the torque converter, requiring tools like a driver group, dial indicator group, and retaining ring pliers. It also describes removing and installing the transfer gears of a 621H wheel tractor, both off chassis and in chassis. The procedures include disconnecting hoses and harness assemblies, removing brackets and seals, and lifting components with lifting devices.
The document provides instructions for assembling and disassembling the torque converter of a 621H wheel tractor. It describes 22 steps for assembling the torque converter, requiring tools like a driver group, dial indicator group, and retaining ring pliers. It also describes removing and installing the transfer gears of a 621H wheel tractor, both off chassis and in chassis. The procedures include disconnecting hoses and harness assemblies, removing brackets and seals, and lifting components with lifting devices.
This document provides instructions for assembling and disassembling components of the torque converter and transfer gears for a 621H wheel tractor. It describes 22 steps for assembling the torque converter, including installing various bearings, seals, and fasteners in the proper order. It also describes removing and installing the transfer gears while the tractor is either off or on the chassis. The disassembly procedure lists 6 steps for disassembling the transfer gear case, including removing bearing cages and shims.
This document provides instructions for assembling and disassembling components of the torque converter and transfer gears for a 621H wheel tractor. It describes 22 steps for assembling the torque converter, including installing various bearings, seals, and fasteners in the proper order. It also describes removing and installing the transfer gears while the tractor is either off or on the chassis. The disassembly procedure lists 6 steps for disassembling the transfer gear case, including removing bearing cages and shims.
The document provides instructions for assembling and disassembling the torque converter of a 621H wheel tractor. It describes 22 steps for assembling the torque converter, requiring tools like a driver group, dial indicator group, and retaining ring pliers. It also describes removing and installing the transfer gears of a 621H wheel tractor, both off chassis and in chassis. The procedures include disconnecting hoses and harness assemblies, removing brackets and seals, and lifting components with lifting devices.
This document provides instructions for assembling and disassembling components of the torque converter and transfer gears for a 621H wheel tractor. It describes 22 steps for assembling the torque converter, including installing various bearings, seals, and fasteners in the proper order. It also describes removing and installing the transfer gears while the tractor is either off or on the chassis. The disassembly procedure describes removing bearing cages, shims, and bearings from the transfer gear case.
This document provides instructions for assembling and disassembling components of the torque converter and transfer gears for a 621H wheel tractor. It describes 22 steps for assembling the torque converter, including installing various bearings, seals, and fasteners in the proper order. It also describes removing and installing the transfer gears while the tractor is either off or on the chassis. The disassembly procedure describes removing bearing cages, shims, and bearings from the transfer gear case.
Caterpillar Cat 336E H and 336E LH EXCAVATOR (Prefix JEA) Service Repair Manu...f89siekkmdmm2w
The document provides instructions for disassembling and assembling the travel motor of a 336E excavator. It outlines 27 steps to disassemble the motor, removing components like the head, springs, brake piston, and bearing races. It then lists 28 steps for reassembling the motor, describing how to install seals, plates, springs and other parts in the reverse order of disassembly. Precautions are included to properly release spring forces and avoid damaging mating surfaces. Tools required include an eyebolt, retaining ring pliers, bearing puller, and adapter to securely hold parts during disassembly and assembly.
Caterpillar Cat 336D L and 336D LN Excavator (Prefix PPN) Service Repair Manu...f89siekkmdmm2w
1. The document provides instructions for disassembling and assembling a piston pump used in Caterpillar 336D L and 336D LN excavators.
2. The disassembly procedure includes using various tools to remove over 30 individual parts from the pump in the correct order.
3. Reassembly requires carefully installing each part in the reverse order, ensuring proper placement and installation of seals, bearings, springs and other components.
4. Cleanliness is emphasized as important during both disassembly and assembly to prevent dirt from damaging internal parts.
Caterpillar Cat 336D2 XE and 336D2 LXE Excavator (Prefix MFA) Service Repair ...f89siekkmdmm2w
This document provides instructions for disassembling the travel motor on 336D2 XE and 336D2 LXE excavator models. It outlines 27 steps to remove parts like the motor head assembly, springs, pistons, seals, plates and other components. Various tools are required including bolts, retaining ring pliers, drivers and pullers. Precautions are mentioned to relieve spring pressure safely and contain fluids. The process yields individual parts to allow inspection and replacement of worn items.
The document provides instructions for removing and installing a cab on a 336 excavator. It lists required tools including eyebolts. Steps include removing the air cleaner mount first. Various illustrations show disconnecting wiring harnesses and brackets, and lifting the cab off using the eyebolts. Reinstallation follows the removal steps in reverse order.
The document provides instructions for disassembling and assembling the final drive of a 336 Excavator. It lists 24 steps for disassembly, removing components like gears, shafts, seals and housings. It then lists 29 steps for assembly, installing components in reverse order and noting specifics like torque values and tooling used. Precise assembly is emphasized, including bearing installation and shim thickness measurement to set proper backlash.
The document provides instructions for removing and installing various engine components on a Caterpillar 336 Excavator including the lifter group, camshaft, camshaft gear, camshaft bearings, and engine oil pan. The instructions include lists of required tools and multi-step procedures accompanied by illustrations of each step. Safety notices are also provided throughout the document.
Caterpillar Cat 336D and 336D L Excavator (Prefix M3N) Service Repair Manual ...f89siekkmdmm2w
This document provides instructions for removing the swing gear and bearing from an excavator undercarriage frame. The procedure involves removing all grease, marking the swing gear and bearing and frame for alignment, attaching lifting tools, and using a hydraulic torque wrench to remove bolts and spacers. The swing gear and bearing assembly weighs approximately 280 kg and must be lifted carefully after the bolts are removed.
Caterpillar Cat 335F and 335F L Excavator (Prefix SGJ) Service Repair Manual ...f89siekkmdmm2w
This document provides instructions for disassembling and assembling the travel motor on a 335F excavator model. The disassembly process involves removing 27 different components from the travel motor in a specific sequence using various tools. The assembly process reverses the disassembly steps and provides additional details on lubricating parts and tightening bolts to the correct torque specifications.
The document provides instructions for removing and installing components on a 336 excavator, including the operator monitor, hydraulic lockout control, and piston motor. It lists the required tools and includes illustrations showing the component locations and step-by-step removal and installation procedures. Safety warnings are provided to prevent injury when working with spring loaded parts. The document also identifies the excavator model and powered engine to ensure the correct repair manual is referenced.
The document is a service repair manual that provides instructions for connecting and disconnecting various components of an excavator model 336. It includes:
1) A list of required tools and replacement parts for the procedures.
2) Step-by-step illustrated instructions for connecting components like the hydraulic pump, boom cylinder, and undercarriage frame.
3) Directions for draining fluids like oil from the final drive before disconnecting it.
4) Notes on installation being the reverse of removal steps and requirements like torquing nuts to specification.
Caterpillar Cat 330F and 330F LN Excavator (Prefix HBT) Service Repair Manual...f89siekkmdmm2w
This document provides instructions for removing and installing components related to the crankshaft and front cover of a Caterpillar 330F excavator engine. The procedures include removing and installing the crankshaft pulley, vibration damper, front seal, and heavy duty front cover. Tools required are listed for each procedure. Illustrations show the components and steps to disassemble and reassemble the assemblies.
Caterpillar Cat 330D2 and 330D2 L Excavator (Prefix FEX) Service Repair Manua...f89siekkmdmm2w
The document provides instructions for disassembling a 330D2 excavator final drive. It involves 33 steps including removing the final drive cover, carrier assembly, planetary gears, ring gears, and other components. Various tools are required including link brackets, eyebolts, retaining ring pliers, and a transmission repair stand to support components weighing up to 550 kg during disassembly. Cleanliness is important to prevent dirt from entering internal mechanisms.
Caterpillar Cat 330D L Excavator (Prefix R2D) Service Repair Manual Instant D...f89siekkmdmm2w
This document provides instructions for removing and installing various components of the rear gear group and flywheel on a Caterpillar 330D L excavator with a C9 engine. The summary is:
The rear gear group removal procedure involves using tools to remove retaining bolts, bushings, adapters, bearings, gears and covers. Installation requires matching dimensions and orientations when pressing in new bearings and reinstalling components.
To remove the flywheel, bolts are first removed 180 degrees apart using a guide stud before lifting the flywheel off. Installation involves heating and pressing in a ring gear, lifting the flywheel into place using guide studs, and torquing bolts to the specified value
Caterpillar Cat 330D L Excavator (Prefix JLP) Service Repair Manual Instant D...f89siekkmdmm2w
The document provides disassembly instructions for a final drive on an excavator model 330D L. It outlines 32 steps to fully disassemble the final drive. The steps include removing covers, gears, shafts, seals, and other components. Special tools are required for tasks like removing retaining rings and carrier assemblies. Safety notes are included to clean parts before disassembly and have additional assistance when removing heavier parts weighing over 30 kg. The detailed process takes the final drive completely apart down to individual planetary gears and shafts.
This document provides installation instructions for a main hydraulic pump on a 330D excavator. It lists 54 steps to assemble components like pistons, gears, brackets, hoses and sensors. Tools include lever pullers, link brackets and torque wrenches. Precautions are given for spring loaded parts. The process involves lifting heavy pump assemblies into place and tightening hundreds of bolts and fittings to specified torques.
Caterpillar Cat 330D L Excavator (Prefix LRM) Service Repair Manual Instant D...f89siekkmdmm2w
The document provides instructions for removing and disassembling the final drive, travel motor, and swivel components of an excavator. It describes disconnecting hydraulic lines and removing mounting bolts, covers, and seals. Special tools are required to safely lift the heavy parts and create a vacuum in the hydraulic system. Proper cleaning, containment of fluids, and use of anti-seize coating are emphasized to prevent contamination.
Caterpillar Cat 330D and 330D L Excavator (Prefix NBD) Service Repair Manual ...f89siekkmdmm2w
This document provides disassembly instructions for a final drive on excavator models 330D and 330D L. The procedure involves 32 steps and requires various tools. Key steps include removing the final drive cover, gears, carrier assembly, planetary gear assembly, and housing components. Disassembly of the planetary gear assembly requires pressing out shafts and removing individual parts like springs pins, washers, bearings, and gears. Cleanliness is important during disassembly to prevent dirt from entering internal mechanisms.
Caterpillar Cat 330D and 330D L Excavator (Prefix EDX) Service Repair Manual ...f89siekkmdmm2w
The document provides instructions for assembling and installing the swing drive of an excavator. It describes 30 steps for assembling the internal components of the swing drive, including installing bearings, gears, seals, and housing components. It then describes 6 steps for installing the entire assembled swing drive into the excavator frame, including attaching lifting brackets, applying sealant, tightening bolts to the specified torque, and filling it with oil. The overall process installs and secures the fully assembled swing drive subsystem into the excavator.
Caterpillar Cat 330C L Excavator (Prefix CYA) Service Repair Manual Instant D...f89siekkmdmm2w
This document provides instructions for disassembling and assembling the travel motor of a 330C L excavator. It lists the required tools and presents step-by-step procedures for removing and installing each component of the travel motor. Some key steps include removing the head from the motor body, taking apart the rotating assembly, and disassembling the brake piston. Special care must be taken to avoid damaging parts and ensure proper alignment during reassembly.
Caterpillar Cat 330D and 330D L Excavator (Prefix GBC) Service Repair Manual ...f89siekkmdmm2w
This document provides instructions for removing and installing components in the cylinder head of a Caterpillar C9 engine, including the rocker arm shaft, cylinder head, lifter group, and camshaft. The procedures describe draining coolant, removing mounting bolts and connections, and lifting components out of the engine. Torque specifications and the proper sequence for installing mounting bolts are also included.
Caterpillar Cat 336E H and 336E LH EXCAVATOR (Prefix JEA) Service Repair Manu...f89siekkmdmm2w
The document provides instructions for disassembling and assembling the travel motor of a 336E excavator. It outlines 27 steps to disassemble the motor, removing components like the head, springs, brake piston, and bearing races. It then lists 28 steps for reassembling the motor, describing how to install seals, plates, springs and other parts in the reverse order of disassembly. Precautions are included to properly release spring forces and avoid damaging mating surfaces. Tools required include an eyebolt, retaining ring pliers, bearing puller, and adapter to securely hold parts during disassembly and assembly.
Caterpillar Cat 336D L and 336D LN Excavator (Prefix PPN) Service Repair Manu...f89siekkmdmm2w
1. The document provides instructions for disassembling and assembling a piston pump used in Caterpillar 336D L and 336D LN excavators.
2. The disassembly procedure includes using various tools to remove over 30 individual parts from the pump in the correct order.
3. Reassembly requires carefully installing each part in the reverse order, ensuring proper placement and installation of seals, bearings, springs and other components.
4. Cleanliness is emphasized as important during both disassembly and assembly to prevent dirt from damaging internal parts.
Caterpillar Cat 336D2 XE and 336D2 LXE Excavator (Prefix MFA) Service Repair ...f89siekkmdmm2w
This document provides instructions for disassembling the travel motor on 336D2 XE and 336D2 LXE excavator models. It outlines 27 steps to remove parts like the motor head assembly, springs, pistons, seals, plates and other components. Various tools are required including bolts, retaining ring pliers, drivers and pullers. Precautions are mentioned to relieve spring pressure safely and contain fluids. The process yields individual parts to allow inspection and replacement of worn items.
The document provides instructions for removing and installing a cab on a 336 excavator. It lists required tools including eyebolts. Steps include removing the air cleaner mount first. Various illustrations show disconnecting wiring harnesses and brackets, and lifting the cab off using the eyebolts. Reinstallation follows the removal steps in reverse order.
The document provides instructions for disassembling and assembling the final drive of a 336 Excavator. It lists 24 steps for disassembly, removing components like gears, shafts, seals and housings. It then lists 29 steps for assembly, installing components in reverse order and noting specifics like torque values and tooling used. Precise assembly is emphasized, including bearing installation and shim thickness measurement to set proper backlash.
The document provides instructions for removing and installing various engine components on a Caterpillar 336 Excavator including the lifter group, camshaft, camshaft gear, camshaft bearings, and engine oil pan. The instructions include lists of required tools and multi-step procedures accompanied by illustrations of each step. Safety notices are also provided throughout the document.
Caterpillar Cat 336D and 336D L Excavator (Prefix M3N) Service Repair Manual ...f89siekkmdmm2w
This document provides instructions for removing the swing gear and bearing from an excavator undercarriage frame. The procedure involves removing all grease, marking the swing gear and bearing and frame for alignment, attaching lifting tools, and using a hydraulic torque wrench to remove bolts and spacers. The swing gear and bearing assembly weighs approximately 280 kg and must be lifted carefully after the bolts are removed.
Caterpillar Cat 335F and 335F L Excavator (Prefix SGJ) Service Repair Manual ...f89siekkmdmm2w
This document provides instructions for disassembling and assembling the travel motor on a 335F excavator model. The disassembly process involves removing 27 different components from the travel motor in a specific sequence using various tools. The assembly process reverses the disassembly steps and provides additional details on lubricating parts and tightening bolts to the correct torque specifications.
The document provides instructions for removing and installing components on a 336 excavator, including the operator monitor, hydraulic lockout control, and piston motor. It lists the required tools and includes illustrations showing the component locations and step-by-step removal and installation procedures. Safety warnings are provided to prevent injury when working with spring loaded parts. The document also identifies the excavator model and powered engine to ensure the correct repair manual is referenced.
The document is a service repair manual that provides instructions for connecting and disconnecting various components of an excavator model 336. It includes:
1) A list of required tools and replacement parts for the procedures.
2) Step-by-step illustrated instructions for connecting components like the hydraulic pump, boom cylinder, and undercarriage frame.
3) Directions for draining fluids like oil from the final drive before disconnecting it.
4) Notes on installation being the reverse of removal steps and requirements like torquing nuts to specification.
Caterpillar Cat 330F and 330F LN Excavator (Prefix HBT) Service Repair Manual...f89siekkmdmm2w
This document provides instructions for removing and installing components related to the crankshaft and front cover of a Caterpillar 330F excavator engine. The procedures include removing and installing the crankshaft pulley, vibration damper, front seal, and heavy duty front cover. Tools required are listed for each procedure. Illustrations show the components and steps to disassemble and reassemble the assemblies.
Caterpillar Cat 330D2 and 330D2 L Excavator (Prefix FEX) Service Repair Manua...f89siekkmdmm2w
The document provides instructions for disassembling a 330D2 excavator final drive. It involves 33 steps including removing the final drive cover, carrier assembly, planetary gears, ring gears, and other components. Various tools are required including link brackets, eyebolts, retaining ring pliers, and a transmission repair stand to support components weighing up to 550 kg during disassembly. Cleanliness is important to prevent dirt from entering internal mechanisms.
Caterpillar Cat 330D L Excavator (Prefix R2D) Service Repair Manual Instant D...f89siekkmdmm2w
This document provides instructions for removing and installing various components of the rear gear group and flywheel on a Caterpillar 330D L excavator with a C9 engine. The summary is:
The rear gear group removal procedure involves using tools to remove retaining bolts, bushings, adapters, bearings, gears and covers. Installation requires matching dimensions and orientations when pressing in new bearings and reinstalling components.
To remove the flywheel, bolts are first removed 180 degrees apart using a guide stud before lifting the flywheel off. Installation involves heating and pressing in a ring gear, lifting the flywheel into place using guide studs, and torquing bolts to the specified value
Caterpillar Cat 330D L Excavator (Prefix JLP) Service Repair Manual Instant D...f89siekkmdmm2w
The document provides disassembly instructions for a final drive on an excavator model 330D L. It outlines 32 steps to fully disassemble the final drive. The steps include removing covers, gears, shafts, seals, and other components. Special tools are required for tasks like removing retaining rings and carrier assemblies. Safety notes are included to clean parts before disassembly and have additional assistance when removing heavier parts weighing over 30 kg. The detailed process takes the final drive completely apart down to individual planetary gears and shafts.
This document provides installation instructions for a main hydraulic pump on a 330D excavator. It lists 54 steps to assemble components like pistons, gears, brackets, hoses and sensors. Tools include lever pullers, link brackets and torque wrenches. Precautions are given for spring loaded parts. The process involves lifting heavy pump assemblies into place and tightening hundreds of bolts and fittings to specified torques.
Caterpillar Cat 330D L Excavator (Prefix LRM) Service Repair Manual Instant D...f89siekkmdmm2w
The document provides instructions for removing and disassembling the final drive, travel motor, and swivel components of an excavator. It describes disconnecting hydraulic lines and removing mounting bolts, covers, and seals. Special tools are required to safely lift the heavy parts and create a vacuum in the hydraulic system. Proper cleaning, containment of fluids, and use of anti-seize coating are emphasized to prevent contamination.
Caterpillar Cat 330D and 330D L Excavator (Prefix NBD) Service Repair Manual ...f89siekkmdmm2w
This document provides disassembly instructions for a final drive on excavator models 330D and 330D L. The procedure involves 32 steps and requires various tools. Key steps include removing the final drive cover, gears, carrier assembly, planetary gear assembly, and housing components. Disassembly of the planetary gear assembly requires pressing out shafts and removing individual parts like springs pins, washers, bearings, and gears. Cleanliness is important during disassembly to prevent dirt from entering internal mechanisms.
Caterpillar Cat 330D and 330D L Excavator (Prefix EDX) Service Repair Manual ...f89siekkmdmm2w
The document provides instructions for assembling and installing the swing drive of an excavator. It describes 30 steps for assembling the internal components of the swing drive, including installing bearings, gears, seals, and housing components. It then describes 6 steps for installing the entire assembled swing drive into the excavator frame, including attaching lifting brackets, applying sealant, tightening bolts to the specified torque, and filling it with oil. The overall process installs and secures the fully assembled swing drive subsystem into the excavator.
Caterpillar Cat 330C L Excavator (Prefix CYA) Service Repair Manual Instant D...f89siekkmdmm2w
This document provides instructions for disassembling and assembling the travel motor of a 330C L excavator. It lists the required tools and presents step-by-step procedures for removing and installing each component of the travel motor. Some key steps include removing the head from the motor body, taking apart the rotating assembly, and disassembling the brake piston. Special care must be taken to avoid damaging parts and ensure proper alignment during reassembly.
Caterpillar Cat 330D and 330D L Excavator (Prefix GBC) Service Repair Manual ...f89siekkmdmm2w
This document provides instructions for removing and installing components in the cylinder head of a Caterpillar C9 engine, including the rocker arm shaft, cylinder head, lifter group, and camshaft. The procedures describe draining coolant, removing mounting bolts and connections, and lifting components out of the engine. Torque specifications and the proper sequence for installing mounting bolts are also included.
Charging Fueling & Infrastructure (CFI) Program by Kevin MillerForth
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Website: www.dashrentacarbah.com
Top-Quality AC Service for Mini Cooper Optimal Cooling PerformanceMotor Haus
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EV Charging at MFH Properties by Whitaker JamiesonForth
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Charging Fueling & Infrastructure (CFI) Program Resources by Cat PleinForth
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Charging and Fueling Infrastructure Grant: Round 2 by Brandt HertensteinForth
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Expanding Access to Affordable At-Home EV Charging by Vanessa WarheitForth
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2. Shutdown SIS
Previous Screen
Product: WHEEL TRACTOR
Model: 621G WHEEL TRACTOR DBB
Configuration: 621G Wheel Tractor DBB00001-UP (MACHINE) POWERED BY C15 Engine
Disassembly and Assembly
621G and 623G
Wheel Tractor-Scrapers
Power Train
Media Number -RENR7497-00 Publication Date -01/08/2005 Date Updated -04/08/2005
i02121676
Torque Converter - Assemble
SMCS - 3101-016
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 2P-8312 Retaining Ring Pliers 1
B 1P-0510 Driver Group 1
D 8T-5096 Dial Indicator Group 1
Illustration 1 g00528674
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3. 1. Use Tooling (B) and a suitable press in order to install sleeve bearing (33) to flange (32) .
Illustration 2 g00528612
2. Install bolts (31) and flange (32) to housing (9). Tighten bolts (31) to the torque 120 ± 15
N·m (89 ± 11 lb ft).
Illustration 3 g00525322
3. Install thrust bearing (29) and thrust race (30) to housing (9) .
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4. Illustration 4 g00525321
4. Install torque converter turbine (23) and clamp ring (28) to hub (3) .
Illustration 5 g00525320
5. Install bolts (27) to torque converter turbine (23). Tighten bolts (27) to a torque of 50 ± 7
N·m (37 ± 5 lb ft). Install thrust race (26) to hub (3) .
Illustration 6 g01052922
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5. 6. Install thrust race (25) and thrust bearing (24) to hub (3) .
Illustration 7 g00525315
7. Install torque converter turbine (23) and hub (3) as a unit to housing (9) .
Illustration 8 g00528953
8. Use Tooling (B) and a suitable press in order to install sleeve bearing (22) to carrier
assembly (12). Install thrust bearing (21) to carrier assembly (12) .
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6. Illustration 9 g01052912
9. Install side plate (20) to torque converter stator (13). Use Tooling (A) in order to install
retaining ring (19) to torque converter stator (13) .
Illustration 10 g00525863
10. Use Tooling (B) and a suitable press in order to install freewheel cam (18) to torque
converter stator (13) .
Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
11. Install torque converter stator (13) to carrier assembly (12). Install freewheel springs (17)
and freewheel rollers (16) to freewheel cam (18). Always install new freewheel springs (17)
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7. and freewheel rollers (16). Install freewheel springs (17) with the maximum number of
loops in freewheel springs (17) to the outside of freewheel cam (18). Torque converter
stator (13) should turn freely in the counterclockwise direction. Torque converter stator (13)
should not turn freely in the clockwise direction.
Illustration 11 g00525309
12. Install thrust race (15) to torque converter stator (13). Use Tooling (A) in order to install
retaining ring (14) to torque converter stator (13) .
Illustration 12 g00525308
13. Install carrier assembly (12) and torque converter stator (13) as a unit to housing (9) .
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8. Illustration 13 g00525306
14. Install thrust bearing (11) to carrier assembly (12) .
Illustration 14 g00525305
15. Install impeller hub (8) to torque converter impeller (5). Install metal seal ring (10) to torque
converter impeller (5) .
Illustration 15 g00525303
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9. 16. Install clamp plate (7), the washers, and bolts (6) to impeller hub (8). Tighten bolts (6) to a
torque of 50 ± 7 N·m (37 ± 5 lb ft).
17. Install bolts (4) and the washers to torque converter impeller (5). Tighten bolts (4) to a
torque of 50 ± 7 N·m (37 ± 5 lb ft).
Illustration 16 g00525299
18. Use Tooling (B) and a suitable press in order to install the sleeve bearing in carriage support
assembly (2). Install the sleeve bearing until the sleeve bearing is flush with the outside
machined surface of carriage support assembly (2) .
19. Install carriage support assembly (2) to hub (3). Use Tooling (A) in order to install retaining
ring (1) to carriage support assembly (2) .
Illustration 17 g01053220
20. Install Tooling (D) to the torque converter, as shown. The edge of Tooling (D) must be in
contact with the edge of carrier assembly (12), as shown. Move hub (3) up and down with a
screwdriver. The end play of hub (3) must be 0.13 to 1.96 mm (0.005 to 0.077 inch).
End By: Install the torque converter. Refer to Disassembly and Assembly, "Torque Converter -
Install".
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10. Shutdown SIS
Previous Screen
Product: WHEEL TRACTOR
Model: 621G WHEEL TRACTOR DBB
Configuration: 621G Wheel Tractor DBB00001-UP (MACHINE) POWERED BY C15 Engine
Disassembly and Assembly
621G and 623G
Wheel Tractor-Scrapers
Power Train
Media Number -RENR7497-00 Publication Date -01/08/2005 Date Updated -04/08/2005
i02036666
Torque Converter - Install
SMCS - 3101-012
Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-2420 Transmission Repair Stand 1
B 138-7575 Link Bracket 2
C 2P-8312 Retaining Ring Pliers 1
Illustration 1 g01047920
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11. 1. Attach Tooling (B) and a suitable lifting device to torque converter (3). Position torque
converter (3) onto transmission planetary (1). The weight of torque converter (3) is
approximately 70 kg (154 lb). Install nuts (7) that hold torque converter (3) to transmission
planetary (1) .
Illustration 2 g01047918
2. Install washer (5) to shaft (6). Use Tooling (C) in order to install retaining ring (4) to shaft
(6) .
Illustration 3 g01047917
3. Remove transmission planetary (1) and torque converter (3) as a unit from Tooling (A). The
weight of transmission planetary (1) and torque converter (3) as a unit is approximately 703
kg (1550 lb).
4. Put transmission planetary (1) and torque converter (3) as a unit onto blocks. Remove
Tooling (B) and the suitable lifting device from torque converter (3) .
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12. Illustration 4 g01047833
5. Attach Tooling (B) and a suitable lifting device to case (2). Install case (2) onto Tooling (A)
(not shown). The weight of case (2) is approximately 90 kg (200 lb).
6. Attach Tooling (B) and a suitable lifting device to transmission planetary (1) and torque
converter (3) as a unit. Install transmission planetary (1) and torque converter (3) as a unit to
case (2). The weight of transmission planetary (1) and torque converter (3) as a unit is
approximately 703 kg (1550 lb).
7. Install the bolts that hold transmission planetary (1) to case (2) .
End By:
a. Install the transfer gears. Refer to Disassembly and Assembly, "Transfer Gears - Connect".
b. Install the transmission hydraulic control valve. Refer to Disassembly and Assembly,
"Transmission Hydraulic Control Valve - Install".
Copyright 1993 - 2021 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Sun Mar 7 21:04:55 UTC+0800 2021
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13. Shutdown SIS
Previous Screen
Product: WHEEL TRACTOR
Model: 621G WHEEL TRACTOR DBB
Configuration: 621G Wheel Tractor DBB00001-UP (MACHINE) POWERED BY C15 Engine
Disassembly and Assembly
621G and 623G
Wheel Tractor-Scrapers
Power Train
Media Number -RENR7497-00 Publication Date -01/08/2005 Date Updated -04/08/2005
i02301155
Transfer Gears - Disassemble
SMCS - 3159-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7575 Link Bracket 1
B
8B-7548 Push-Puller Tool Gp 1
8B-7551 Bearing Puller Gp 1
1P-0498 Drive Plate 1
C
5P-4170 Step Plate 1
1P-2321 Combination Puller 1
D
8B-7554 Bearing Cup Puller Gp 1
5P-4170 Step Plate 1
1P-0518 Drive Plate 1
E
8B-7560 Step Plate 1
5F-7345 Screw 1
8B-7554 Bearing Cup Puller Gp 1
F -
Bolts
3/8" - 16 NC by 3 inch
3
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14. Start By:
a. Remove the transfer gear case. Refer to Disassembly and Assembly, "Transfer Gears -
Remove".
b. Remove the transmission oil filter base. Refer to Disassembly and Assembly, "Transmission
Oil Filter Base - Remove and Install".
c. Remove the transmission scavenge pump. Refer to Disassembly and Assembly,
"Transmission Scavenge Pump - Remove".
d. Remove the transmission oil pump. Refer to Disassembly and Assembly, "Transmission Oil
Pump - Remove".
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting, and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Dealer Service Tool
Catalog" for tools and supplies suitable to collect and contain fluids on
Cat®
products.
Dispose of all fluids according to local regulations and mandates.
NOTICE
Keep all parts clean from contaminants.
Contamination of the hydraulic system with foreign material will
reduce the service life of the hydraulic system components.
To prevent contaminants from entering the hydraulic system, always
plug or cap the lines, fittings, or hoses as they are disconnected. Cover
any disassembled components and clean them properly before
assembly.
Clean the hydraulic system properly after any major component
exchange or especially after a component failure, to remove any
contamination.
1. Put identification marks on components for installation purposes.
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15. Illustration 1 g01048669
2. Remove the bolts that secure bearing cage (1) to the transfer gear case. Use Tooling (F) in
order to separate bearing cage (1) from the transfer gear case.
3. Remove bearing cage (1), shims (2), and pump drive gear (3) from the transfer gear case.
Illustration 2 g01102869
4. Remove the bolts that secure bearing cage (4) to the transfer gear case. Use Tooling (F) in
order to separate bearing cage (4) from the transfer gear case.
5. Remove bearing cage (4), shims (5), and gear (6) from the transfer gear case.
Illustration 3 g00529211
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16. 6. Remove bearing cups (7) and (8) from the transfer gear case. Attach Tooling (A) and a
suitable lifting device onto the transfer gear case. The weight of the transfer gear case is
approximately 340 kg (750 lb). Turn over the transfer gear case. Remove Tooling (A).
Illustration 4 g01102873
7. Remove the bolts that secure bearing cage (9) to the transfer gear case. Use Tooling (F) in
order to separate bearing cage (9) from the transfer gear case.
8. Remove bearing cage (9), shims (10), and gear (11) from the transfer gear case.
Illustration 5 g00529214
9. Remove bearing cup (12) from the transfer gear case. Attach Tooling (A) and a suitable
lifting device onto the transfer gear case. Turn over the transfer gear case.
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17. Illustration 6 g00529215
10. Remove bolts (13) that secure bearing cage (14) to the transfer gear case. If necessary, rotate
the gear until the three threaded holes are visible in bearing cage (14). Install Tooling (F)
through gear (15) and into bearing cage (14). Tighten Tooling (F) evenly until bearing cage
(14) and gear (15) separate from the transfer gear case. Remove bearing cage (14) and gear
(15) as a unit from the transfer gear case.
Illustration 7 g00529216
Illustration 8 g00529257
11. Remove retaining ring (16) from gear (15). Remove bearing (17) and bearing cage (14)
from gear (15).
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18. Illustration 9 g01048544
12. Remove bearing (17) from bearing cage (14).
Illustration 10 g01048548
13. Remove bolts (19) and separate gear (20) from gear (11). Use Tooling (B) to remove
bearing cone (18) from gear (11). Repeat the procedure for the bearing cone on the opposite
side of the gear.
Illustration 11 g01048549
14. Use Tooling (C) to remove bearing cone (21) from gear (6). Repeat the procedure for the
bearing cone on the opposite side of gear (6).
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19. Illustration 12 g01048550
15. Use Tooling (C) to remove bearing cone (22) from gear (3). Repeat the procedure for the
bearing cone on the opposite side of gear (3).
Illustration 13 g01048551
16. Use Tooling (D) to remove bearing cup (23) from bearing cage (4). Remove O-ring seal
(24) from bearing cage (4).
Illustration 14 g01048553
17. Remove bearing cup (25) from bearing cage (9).
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20. Illustration 15 g01048552
18. Use Tooling (E) to remove bearing cup (26) from bearing cage (1). Remove O-ring seal (27)
from bearing cage (1).
Copyright 1993 - 2021 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Sun Mar 7 21:05:51 UTC+0800 2021
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21. Shutdown SIS
Previous Screen
Product: WHEEL TRACTOR
Model: 621G WHEEL TRACTOR DBB
Configuration: 621G Wheel Tractor DBB00001-UP (MACHINE) POWERED BY C15 Engine
Disassembly and Assembly
621G and 623G
Wheel Tractor-Scrapers
Power Train
Media Number -RENR7497-00 Publication Date -01/08/2005 Date Updated -04/08/2005
i07232119
Transfer Gears - Assemble
SMCS - 3159-016
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7575 Link Bracket 1
G 1P-0510 Driver Group 1
H 8T-5096 Dial Indicator 1
NOTICE
Keep all parts clean from contaminants.
Contamination of the hydraulic system with foreign material will
reduce the service life of the hydraulic system components.
To prevent contaminants from entering the hydraulic system, always
plug or cap the lines, fittings, or hoses as they are disconnected. Cover
any disassembled components and clean them properly before
assembly.
Clean the hydraulic system properly after any major component
exchange or especially after a component failure, to remove any
contamination.
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22. 1. Clean all parts and inspect all parts. If any parts are worn or damaged, use new parts for
replacement.
2. Lubricate O-ring seals with the lubricant that is being sealed.
Illustration 1 g01048544
3. Install bearing (17) into bearing cage (14).
Illustration 2 g00529216
4. Use Tooling (G) to install bearing (17) and bearing cage (14) to gear (15). Install bearing
(17) and bearing cage (14) until the retaining ring groove is visible. Install retaining ring
(16) to gear (15).
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23. Illustration 3 g00529215
5. Position gear (15) and bearing cage (14) in the transfer gear case. Install bolts (13) that
secure bearing cage (14) to the transfer gear case. Tighten bolts (13) to a torque of
55 ± 10 N·m (41 ± 7 lb ft).
Illustration 4 g01048552
6. Install O-ring seal (27) onto bearing cage (1). Lower the temperature of bearing cup (26).
Install bearing cup (26) to bearing cage (1). Check that bearing cup (26) is seated in the bore
of bearing cage (1).
Illustration 5 g01048553
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24. 7. Lower the temperature of bearing cup (25). Install bearing cup (25) to bearing cage (9).
Check that bearing cup (25) is seated in the bore of bearing cage (9).
Illustration 6 g01048551
8. Install O-ring seal (24) to bearing cage (4). Lower the temperature of bearing cup (23).
Install bearing cup (23) to bearing cage (4). Check that bearing cup (23) is seated in the bore
of bearing cage (4).
Illustration 7 g01048550
9. Raise the temperature of bearing cone (22). Install bearing cone (22) on gear (3). Repeat the
procedure for the bearing cone on the opposite side of gear (3).
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25. Illustration 8 g01048549
10. Raise the temperature of bearing cone (21). Install bearing cone (21) on gear (6). Repeat the
procedure for the bearing cone on the opposite side of gear (6).
Illustration 9 g01048548
11. Raise the temperature of bearing cone (18). Install bearing cone (18) on gear (11). Repeat
the procedure for the bearing cone on the opposite side of gear (11).
12. Position gear (20) on gear (11). Install bolts (19). Tighten bolts (19) to a torque of
55 ± 10 N·m (41 ± 7 lb ft). Attach Tooling (A) and a suitable lifting device onto the transfer
gear case. The weight of the transfer gear case is approximately 340 kg (750 lb). Turn over
the transfer gear case. Remove Tooling (A).
Illustration 10 g00529214
13. Lower the temperature of bearing cup (12). Use Tooling (G) to install bearing cup (12) to
the transfer gear case. Check that bearing cup (12) is seated in the bore of the transfer gear
case.
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26. Illustration 11 g00529695
Illustration 12 g01048735
14. Position gear (11) in the transfer gear case. Install bearing cage (9) and shims (10). Install
bolts (28) that hold bearing cage (9) in position. Tighten bolts (28) to a torque of
55 ± 10 N·m (41 ± 7 lb ft).
15. Position Tooling (H) in the transfer gear case, as shown. Make sure that the dial indicator is
in contact with gear (11). Use a pry bar to move gear (11) up and down. Adjust shims (10)
to obtain an end play of 0.15 ± 0.05 mm (0.006 ± 0.002 inch). Tighten bolts (28) to a torque
of 55 ± 10 N·m (41 ± 7 lb ft).
Illustration 13 g00529211
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27. 16. Use Tooling (G) to install bearing cups (7) and (8) to the transfer gear case. Check that
bearing cups (7) and (8) is seated in the bore of the transfer gear case.
Illustration 14 g00529696
Illustration 15 g01048736
17. Position gear (6) in the transfer gear case with the internal snap ring groove facing up.
Install bearing cage (4) and shims (5). Install the bolts (29) that hold bearing cage (4) in
position. Tighten bolts (29) to a torque of 55 ± 10 N·m (41 ± 7 lb ft).
18. Attach Tooling (A) and a suitable lifting device to the transfer gear case. Place the transfer
gear case on wood blocks, as shown. Position Tooling (H) on the transfer gear case, as
shown. Make sure that the dial indicator is in contact with gear (6). Use a pry bar to move
gear (6) up and down. Adjust shims (5) to obtain an end play of 0.15 ± 0.05 mm
(0.006 ± 0.002 inch). Tighten bolts (29) to a torque of 55 ± 10 N·m (41 ± 7 lb ft).
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28. Illustration 16 g00529697
Illustration 17 g01048737
19. Position gear (3) in the transfer gear case. Install bearing cage (1) and shims (2). Install the
bolts (30) that hold bearing cage (1) in position. Tighten bolts (30) to a torque of
55 ± 10 N·m (41 ± 7 lb ft).
20. Position Tooling (H) on the transfer gear case, as shown. Make sure that the dial indicator is
in contact with gear (3). Use a pry bar to move gear (3) up and down. Adjust shims (2) to
obtain an end play of 0.15 ± 0.05 mm (0.006 ± 0.002 inch). Tighten bolts (30) to a torque of
55 ± 10 N·m (41 ± 7 lb ft).
End By:
a. Install the transmission oil pump. Refer to Disassembly and Assembly, "Transmission Oil
Pump - Install".
b. Install the transmission scavenge pump. Refer to Disassembly and Assembly, "Transmission
Scavenge Pump - Install".
c. Install the transmission oil filter base. Refer to Disassembly and Assembly, "Transmission
Oil Filter Base - Remove and Install".
d. Install the transfer gear case. Refer to Disassembly and Assembly, "Transfer Gears -
Install".
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29. Suggest:
If the above button click is invalid.
Please download this document
first, and then click the above link
to download the complete manual.
Thank you so much for reading
30. Shutdown SIS
Previous Screen
Product: WHEEL TRACTOR
Model: 621G WHEEL TRACTOR DBB
Configuration: 621G Wheel Tractor DBB00001-UP (MACHINE) POWERED BY C15 Engine
Disassembly and Assembly
621G and 623G
Wheel Tractor-Scrapers
Power Train
Media Number -RENR7497-00 Publication Date -01/08/2005 Date Updated -04/08/2005
i02127894
Transmission Planetary - Disassemble
SMCS - 3030-015
Disassembly Procedure
Start By:
A. Separate the transfer gears from the transmission. Refer to Disassembly and Assembly,
"Transmission and Transfer Gears - Separate".
B. Remove the transmission hydraulic control valve. Refer to Disassembly and Assembly,
"Transmission Hydraulic Control Valve - Remove".
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-7407 Eyebolt 2
B FT-0833 Clamp 2
C 2P-8312 Retaining Ring Pliers 1
D FT-1335 Transmission Fixture 1
E 1P-0520 Driver Gp 1
F 1P-2420 Transmission Repair Stand 2
G 1P-7405 Eyebolt 2
H 3/8 - 16 NC Forcing Screw 4
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31. NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop
Products Guide" for tools and supplies suitable to collect and contain
fluids on Caterpillar products.
Dispose of all fluids according to local regulations and mandates.
Illustration 1 g01052880
1. Install Tooling (A) and a suitable lifting device onto transmission assembly (1). Position
transmission assembly (1) onto Tooling (F). The weight of the transmission assembly is
approximately 703 kg (1550 lb).
Illustration 2 g00841452
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