This document provides instructions for removing and installing the front gear group on a 312E or 312E L excavator with a C4.4 engine. The key steps include:
1. Locking the crankshaft and fuel injection pump gear in position using timing pins.
2. Loosening the rocker arm inserts to fully close the valves.
3. Removing the camshaft, idler, and housing gears in the proper order while maintaining timing marks.
4. Cleaning and inspecting components before installing in reverse order while checking gear mesh and end play/backlash specifications.
Caterpillar cat 312 e excavator (prefix wey) service repair manual (wey00001 ...fjjskekdmmse
The document provides instructions for removing and installing the front gear group on 312E and 312E L excavator models powered by a C4.4 engine. The removal procedure involves using various tools to lock the crankshaft, camshaft and fuel injection pump in position before removing components like the idler gears, camshaft gear, and front housing bearing. The installation procedure outlines cleaning and inspecting components before reinstalling them in reverse order of removal, ensuring proper positioning and locking of gears.
Caterpillar cat 428 f backhoe loader (prefix rak) service repair manual (rak0...fujsekwsxksmem
This document provides instructions for removing and installing the front gear group of a 428F backhoe loader. It outlines the necessary tools and safety precautions. The removal process involves locking the crankshaft and fuel injection pump positions, loosening rocker arms, and removing gears and housings. The installation follows the reverse order and ensures proper positioning and cleaning of components.
Caterpillar cat 314 e cr excavator (prefix ecn) service repair manual (ecn000...jfdskekdmme
The document provides instructions for removing and installing the front gear group on a Caterpillar C4.4 engine. Key steps include:
1. Locking the crankshaft, camshaft, and fuel injection pump in position using timing pins to maintain proper timing.
2. Removing the idler gear and camshaft gear, taking note of alignment marks for reinstallation.
3. Cleaning and inspecting components, then reinstalling the gears in proper alignment, checking backlash and end play with gauges.
4. Locking components again and tightening fasteners to specification before removing locking pins and returning the valve mechanism to the safe position.
Caterpillar cat m314 f wheeled excavator (prefix f4a) service repair manual (...ufjjskekkmed
The document provides instructions for removing the front housing on a C4.4 engine. Key steps include:
1. Removing various external components like the fan, pulley, oil pan, and gears.
2. Disconnecting electrical and coolant components from the front housing.
3. Removing several bolts of different lengths that secure the front housing to the engine block.
4. Removing the front housing and gasket from the engine block. Proper identification of removed parts is important for reinstallation.
Caterpillar cat 312 e excavator (prefix pzl) service repair manual (pzl00001 ...fjjskekdmmse
This document provides instructions for removing and installing the front gear group on a 312E or 312E L excavator with a C4.4 engine. The key steps include:
1. Locking the crankshaft and fuel injection pump gear in position using timing pins.
2. Loosening the rocker arm inserts to fully close the valves.
3. Removing the camshaft, idler, and housing gears in the proper order while maintaining timing marks.
4. Cleaning and inspecting components before installing in reverse order while ensuring proper gear mesh and end play measurements.
Hyundai hl730 3 wheel loader service repair manualfjjskekdmmse
The document provides instructions for disassembling and assembling a priority valve and steering unit. It includes diagrams labeling the parts of each system.
The priority valve disassembly instructions describe removing the plugs and seal rings, pressing out the spool, and disassembling the remaining parts. Assembly is the reverse of disassembly.
The steering unit disassembly involves removing the end cover, cardan shaft, plates and seals. Individual parts like the spool, springs and ball are then removed. Assembly shows reinstalling these parts in reverse order with lubrication. Troubleshooting tips are provided for common issues.
The document provides instructions for removing and installing the idler gear on a C4.4 engine. There are separate procedures for a standard idler gear and a heavy-duty idler gear. The removal procedure involves locking the camshaft and crankshaft, removing mounting bolts, and tilting the gear out of position. The installation procedure involves cleaning and inspecting parts, aligning timing marks, lubricating components, and checking specifications such as end play and backlash. Tools and torque specifications are provided.
Caterpillar cat 444 f backhoe loader (prefix ljj) service repair manual (ljj0...fjsjjfkskeme
The document provides instructions for installing the front housing on a C4.4 engine. It lists the required tools which include sealant and bolts. The steps include cleaning and inspecting the front housing, installing blanking plugs if needed, checking the crankshaft seal, cleaning the cylinder block mating surfaces, installing the thrust washer and joint, aligning the housing dowels and installing bolts to secure the housing. Tightening specifications and installing remaining components like the bypass tube and idler gear plate are also outlined.
Caterpillar cat 312 e excavator (prefix wey) service repair manual (wey00001 ...fjjskekdmmse
The document provides instructions for removing and installing the front gear group on 312E and 312E L excavator models powered by a C4.4 engine. The removal procedure involves using various tools to lock the crankshaft, camshaft and fuel injection pump in position before removing components like the idler gears, camshaft gear, and front housing bearing. The installation procedure outlines cleaning and inspecting components before reinstalling them in reverse order of removal, ensuring proper positioning and locking of gears.
Caterpillar cat 428 f backhoe loader (prefix rak) service repair manual (rak0...fujsekwsxksmem
This document provides instructions for removing and installing the front gear group of a 428F backhoe loader. It outlines the necessary tools and safety precautions. The removal process involves locking the crankshaft and fuel injection pump positions, loosening rocker arms, and removing gears and housings. The installation follows the reverse order and ensures proper positioning and cleaning of components.
Caterpillar cat 314 e cr excavator (prefix ecn) service repair manual (ecn000...jfdskekdmme
The document provides instructions for removing and installing the front gear group on a Caterpillar C4.4 engine. Key steps include:
1. Locking the crankshaft, camshaft, and fuel injection pump in position using timing pins to maintain proper timing.
2. Removing the idler gear and camshaft gear, taking note of alignment marks for reinstallation.
3. Cleaning and inspecting components, then reinstalling the gears in proper alignment, checking backlash and end play with gauges.
4. Locking components again and tightening fasteners to specification before removing locking pins and returning the valve mechanism to the safe position.
Caterpillar cat m314 f wheeled excavator (prefix f4a) service repair manual (...ufjjskekkmed
The document provides instructions for removing the front housing on a C4.4 engine. Key steps include:
1. Removing various external components like the fan, pulley, oil pan, and gears.
2. Disconnecting electrical and coolant components from the front housing.
3. Removing several bolts of different lengths that secure the front housing to the engine block.
4. Removing the front housing and gasket from the engine block. Proper identification of removed parts is important for reinstallation.
Caterpillar cat 312 e excavator (prefix pzl) service repair manual (pzl00001 ...fjjskekdmmse
This document provides instructions for removing and installing the front gear group on a 312E or 312E L excavator with a C4.4 engine. The key steps include:
1. Locking the crankshaft and fuel injection pump gear in position using timing pins.
2. Loosening the rocker arm inserts to fully close the valves.
3. Removing the camshaft, idler, and housing gears in the proper order while maintaining timing marks.
4. Cleaning and inspecting components before installing in reverse order while ensuring proper gear mesh and end play measurements.
Hyundai hl730 3 wheel loader service repair manualfjjskekdmmse
The document provides instructions for disassembling and assembling a priority valve and steering unit. It includes diagrams labeling the parts of each system.
The priority valve disassembly instructions describe removing the plugs and seal rings, pressing out the spool, and disassembling the remaining parts. Assembly is the reverse of disassembly.
The steering unit disassembly involves removing the end cover, cardan shaft, plates and seals. Individual parts like the spool, springs and ball are then removed. Assembly shows reinstalling these parts in reverse order with lubrication. Troubleshooting tips are provided for common issues.
The document provides instructions for removing and installing the idler gear on a C4.4 engine. There are separate procedures for a standard idler gear and a heavy-duty idler gear. The removal procedure involves locking the camshaft and crankshaft, removing mounting bolts, and tilting the gear out of position. The installation procedure involves cleaning and inspecting parts, aligning timing marks, lubricating components, and checking specifications such as end play and backlash. Tools and torque specifications are provided.
Caterpillar cat 444 f backhoe loader (prefix ljj) service repair manual (ljj0...fjsjjfkskeme
The document provides instructions for installing the front housing on a C4.4 engine. It lists the required tools which include sealant and bolts. The steps include cleaning and inspecting the front housing, installing blanking plugs if needed, checking the crankshaft seal, cleaning the cylinder block mating surfaces, installing the thrust washer and joint, aligning the housing dowels and installing bolts to secure the housing. Tightening specifications and installing remaining components like the bypass tube and idler gear plate are also outlined.
Caterpillar cat 312 e excavator (prefix pzl) service repair manual (pzl00001 ...fjjsekdmme
This document provides instructions for removing and installing the front gear group on Caterpillar C4.4 engines. The removal procedure involves locking the crankshaft, camshaft, and fuel injection pump in position using timing pins. Components like the idler gears, camshaft gear, and housing bearing are then removed. Installation follows the reverse order, with lubrication of gears and checking of timing, backlash, and end play measurements upon completion. Tools and torque specifications are provided.
Caterpillar cat 312 e l excavator (prefix pzl) service repair manual (pzl0000...fhsjejkdmem
This document provides instructions for removing and installing the front gear group on Caterpillar C4.4 engines. The removal procedure involves locking the crankshaft, camshaft, and fuel injection pump in position using timing pins. Components like the idler gears, camshaft gear, and housing bearing are then removed. Installation follows the reverse order, with lubrication of gears and checking of timing, backlash, and end play measurements upon completion. Tools and torque specifications are provided.
Caterpillar cat 312 e excavator (prefix pzl) service repair manual (pzl00001 ...fhsjejkdmem
This document provides instructions for removing and installing the front gear group on Caterpillar C4.4 engines. The removal procedure involves locking the crankshaft, camshaft, and fuel injection pump in position using timing pins. Components like the idler gears, camshaft gear, and housing bearing are then removed. Installation follows the reverse order, with lubrication of gears and checking of timing, backlash, and end play measurements upon completion. Tools and torque specifications are provided.
Caterpillar cat 312 e l excavator (prefix pzl) service repair manual (pzl0000...fjjsekdmme
This document provides instructions for removing and installing the front gear group on Caterpillar C4.4 engines. The removal procedure involves locking the crankshaft, camshaft, and fuel injection pump in position using timing pins. Components like the idler gears, camshaft gear, and housing bearing are then removed. Installation follows the reverse order, with lubrication of gears and checking of timing, backlash, and end play measurements upon completion. Tools and torque specifications are provided.
This document provides instructions for removing and installing the front gear group on a Caterpillar 312E or 312E L excavator engine. The removal procedure involves using tools to lock the crankshaft, camshaft, and fuel injection pump in position before loosening threaded inserts on the rocker arms. Several gears and other components are then removed from the front of the engine housing. The installation procedure outlines cleaning and inspecting parts before reinstalling components in reverse order, maintaining proper positioning and locking of internal components.
This document provides instructions for removing and installing the front gear group on Caterpillar C4.4 engines. The removal procedure involves locking the crankshaft, camshaft, and fuel injection pump positions using timing pins. Components like the idler gears, camshaft gear, and housing bearing are then removed. Installation follows the reverse order, with lubrication of gears and checking of timing, backlash, and end play measurements upon completion. Tools and torque specifications are provided.
This document provides instructions for removing and installing the front gear group on Caterpillar C4.4 engines. The removal procedure involves locking the crankshaft, camshaft, and fuel injection pump positions using timing pins. Components like the idler gears, camshaft gear, and housing bearing are then removed. Installation follows the reverse order, with lubrication of gears and checking of timing, backlash, and end play measurements upon completion. Tools and torque specifications are provided.
Caterpillar cat 312 e l excavator (prefix pzl) service repair manual (pzl0000...idkkddmmd1
This document provides instructions for removing and installing the front gear group on a Caterpillar 312E or 312E L excavator engine. The removal procedure involves using tools to lock the crankshaft, camshaft, and fuel injection pump in position before loosening threaded inserts on the rocker arms. Several gears and other components are then removed from the front of the engine housing. The installation procedure outlines cleaning and inspecting parts before reinstalling components in reverse order, maintaining proper positioning and locking of internal components.
This document provides instructions for removing and installing the front gear group on Caterpillar C4.4 engines. The removal procedure involves locking the crankshaft, camshaft, and fuel injection pump in position using timing pins. Components like the idler gears, camshaft gear, and housing bearing are then removed. Installation follows the reverse order, with lubrication of gears and checking of timing, backlash, and end play measurements upon completion. Tools and torque specifications are provided.
Caterpillar cat 312 e excavator (prefix pzl) service repair manual (pzl00001 ...idkkddmmd1
This document provides instructions for removing and installing the front gear group on a Caterpillar 312E or 312E L excavator engine. The removal procedure involves using tools to lock the crankshaft, camshaft, and fuel injection pump in position before loosening threaded inserts on the rocker arms. Several gears and other components are then removed from the front of the engine housing. The installation procedure outlines cleaning and inspecting parts before reinstalling components in reverse order, maintaining proper positioning and locking of internal components.
This document provides instructions for removing and installing the front gear group on Caterpillar C4.4 engines. The removal procedure involves locking the crankshaft, camshaft, and fuel injection pump in position using timing pins. Components like the idler gears, camshaft gear, and housing bearing are then removed. Installation follows the reverse order, with lubrication of gears and checking of timing, backlash, and end play measurements upon completion. Tools and torque specifications are provided.
This document provides instructions for removing and installing the front gear group on a Caterpillar 312E or 312E L excavator engine. The removal procedure involves using tools to lock the crankshaft, camshaft, and fuel injection pump in position before loosening threaded inserts on the rocker arms. Several gears and other components are then removed from the front of the engine housing. The installation procedure outlines cleaning and inspecting parts before reinstalling components in reverse order, maintaining proper positioning and locking of internal components.
This document provides instructions for removing and installing the front gear group on Caterpillar C4.4 engines. The removal procedure involves locking the crankshaft, camshaft, and fuel injection pump positions using timing pins. Components like the idler gears, camshaft gear, and housing bearing are then removed. Installation follows the reverse order, with lubrication of gears and checking of timing, backlash, and end play measurements upon completion. Tools and torque specifications are provided.
Caterpillar cat 312 e l excavator (prefix wey) service repair manual (wey0000...fjjskekdmmse
This document provides instructions for removing and installing the front gear group on a 312E or 312E L excavator with a C4.4 engine. The removal procedure involves locking the crankshaft and fuel injection pump positions, loosening the rocker arms, and removing gears and hubs. The installation procedure gives steps to clean and inspect parts, install bearings and gears in correct positions, check gear mesh and end play, and tighten bolts to specified torques. Tools and torque specifications are provided in tables.
Caterpillar cat 312 e excavator (prefix wey) service repair manual (wey00001 ...fjjsekdmme
This document provides instructions for removing and installing the front gear group on a C4.4 engine. The removal procedure involves locking the crankshaft, fuel injection pump, and camshaft in position using timing pins. Components like the idler gears, camshaft gear, and housing bearing are then removed. Installation follows the reverse order, with lubrication of parts and verification of proper timing and clearance measurements. Tools required include an engine turning tool, various timing pins, sockets, and dial indicators for checking specifications.
Caterpillar cat 312 e l excavator (prefix wey) service repair manual (wey0000...fjjsekdmme
This document provides instructions for removing and installing the front gear group on a C4.4 engine. The removal procedure involves locking the crankshaft, fuel injection pump, and camshaft in position using timing pins. Components like the idler gears, camshaft gear, and housing bearing are then removed. Installation follows the reverse order, with lubrication of parts and verification of proper timing and clearance measurements. Tools required include an engine turning tool, various timing pins, sockets, and dial indicators for checking specifications.
Caterpillar cat 312 e excavator (prefix wey) service repair manual (wey00001 ...fhsjejkdmem
This document provides instructions for removing and installing the front gear group of a C4.4 engine. It lists the required tools and gives step-by-step directions including removing covers, locking the camshaft and fuel pump gears, and marking gear alignments. The removal process involves loosening rocker arms, locking the crankshaft, and removing individual gears and hubs. Installation is the reverse of removal and includes cleaning, inspecting, and applying lubricants to components.
Caterpillar cat 312 e l excavator (prefix wey) service repair manual (wey0000...fhsjejkdmem
This document provides instructions for removing and installing the front gear group on a C4.4 engine. The removal procedure involves locking the crankshaft, fuel injection pump, and camshaft in position using timing pins. Components like the idler gears, camshaft gear, and housing bearing are then removed. Installation follows the reverse order, with lubrication of parts and verification of proper timing and clearance measurements. Tools required include an engine turning tool, various timing pins, sockets, and dial indicators for checking specifications.
Caterpillar Cat 312E and 312E L Excavator (Prefix WEY) Service Repair Manual ...fijsekkdmdm2w
This document provides instructions for removing and installing the front gear group on a C4.4 engine. The removal procedure involves locking the crankshaft, fuel injection pump, and camshaft in position using timing pins. Components like the idler gears, camshaft gear, and housing bearing are then removed. Installation follows the reverse order, with lubrication of parts and verification of proper timing and clearance measurements. Tools required include an engine turning tool, various timing pins, sockets, and dial indicators for checking specifications.
Caterpillar Cat 312E and 312E L Excavator (Prefix WEY) Service Repair Manual ...zan2736ban
This document provides instructions for removing and installing the front gear group of a C4.4 engine. It lists the required tools and gives step-by-step directions including removing covers, locking the camshaft and fuel pump gears, and marking gear alignments. The removal process involves loosening rocker arms, locking the crankshaft, and removing individual gears and hubs. Installation is the reverse of removal and includes cleaning, inspecting, and applying lubricants to components.
Mc cormick xtx series (2005 2007) - xtx200 tractor service repair manualfjjskekdmmse
This document provides part numbers and descriptions for replacement parts for various components of XTX Series tractors XTX185, XTX200, and XTX215 from 2005 to 2007, including the engine, radiator, hydraulic system, transmission, and cooling system. The parts include gaskets, hoses, fittings, brackets, seals, bolts, and other hardware. Notes are provided for some parts regarding changes in part numbers or specifications over time.
Mc cormick xtx series (2005 2007) - xtx185 tractor service repair manualfjjskekdmmse
This document provides part numbers and descriptions for replacement components for various systems on XTX Series tractors XTX185, XTX200, and XTX215 from 2005-2007, including the engine, cooling system, hydraulic system, and other systems. The parts listed include gaskets, hoses, fittings, pumps, filters, belts, brackets, seals, and other common replacement components.
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This document provides instructions for removing and installing the front gear group on Caterpillar C4.4 engines. The removal procedure involves locking the crankshaft, camshaft, and fuel injection pump in position using timing pins. Components like the idler gears, camshaft gear, and housing bearing are then removed. Installation follows the reverse order, with lubrication of gears and checking of timing, backlash, and end play measurements upon completion. Tools and torque specifications are provided.
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This document provides instructions for removing and installing the front gear group on a Caterpillar 312E or 312E L excavator engine. The removal procedure involves using tools to lock the crankshaft, camshaft, and fuel injection pump in position before loosening threaded inserts on the rocker arms. Several gears and other components are then removed from the front of the engine housing. The installation procedure outlines cleaning and inspecting parts before reinstalling components in reverse order, maintaining proper positioning and locking of internal components.
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This document provides instructions for removing and installing the front gear group on Caterpillar C4.4 engines. The removal procedure involves locking the crankshaft, camshaft, and fuel injection pump positions using timing pins. Components like the idler gears, camshaft gear, and housing bearing are then removed. Installation follows the reverse order, with lubrication of gears and checking of timing, backlash, and end play measurements upon completion. Tools and torque specifications are provided.
Caterpillar cat 312 e l excavator (prefix pzl) service repair manual (pzl0000...idkkddmmd1
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Caterpillar cat 312 e l excavator (prefix wey) service repair manual (wey0000...fhsjejkdmem
This document provides instructions for removing and installing the front gear group on a C4.4 engine. The removal procedure involves locking the crankshaft, fuel injection pump, and camshaft in position using timing pins. Components like the idler gears, camshaft gear, and housing bearing are then removed. Installation follows the reverse order, with lubrication of parts and verification of proper timing and clearance measurements. Tools required include an engine turning tool, various timing pins, sockets, and dial indicators for checking specifications.
Caterpillar Cat 312E and 312E L Excavator (Prefix WEY) Service Repair Manual ...fijsekkdmdm2w
This document provides instructions for removing and installing the front gear group on a C4.4 engine. The removal procedure involves locking the crankshaft, fuel injection pump, and camshaft in position using timing pins. Components like the idler gears, camshaft gear, and housing bearing are then removed. Installation follows the reverse order, with lubrication of parts and verification of proper timing and clearance measurements. Tools required include an engine turning tool, various timing pins, sockets, and dial indicators for checking specifications.
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2. Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 312E EXCAVATOR PZL
Configuration: 312E & 312E L Excavators PZL00001-UP (MACHINE) POWERED BY C4.4 Engine
Disassembly and Assembly
C4.4 Engines for Caterpillar Built Machines
Media Number -UENR0602-11 Publication Date -01/08/2013 Date Updated -25/10/2017
i04048571
Gear Group (Front) - Remove and Install - Heavy Duty Gear
Group (Front)
SMCS - 1206-010
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A
9U-7336 Housing 1
5P-7305 Engine Turning Tool 1
B 230-6284 Timing Pin (Camshaft) 1
C 364-9107
Timing Pin
(Fuel Injection Pump)
1
D
136-4632 Timing Pin (Crankshaft) 1
268-1966 Adapter 1
E 298-5564 T40Torx Socket 1
Start By:
a. Remove the front cover. Refer to Disassembly and Assembly, "Front Cover - Remove and
Install" for the correct procedure.
b. Remove the valve mechanism cover. Refer to Disassembly and Assembly, "Valve
Mechanism Cover - Remove and Install" for the correct procedure.
NOTICE
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3. Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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.
Dispose of all fluids according to local regulations and mandates.
Note: Care must be taken in order to ensure that the fuel injection pump timing is not lost during
the removal of the front gear group. Carefully follow the procedure in order to remove the gear
group.
1. If the air compressor is equipped with a hydraulic pump, remove the hydraulic pump. Refer
to Original Equipment Manufactures (OEM) for the correct procedure.
2. If the engine is equipped with an air compressor, remove the air compressor. Refer to
Disassembly and Assembly, "Air Compressor - Remove" for the correct procedure.
3. If the engine is equipped with only a hydraulic pump, remove the hydraulic pump. Refer to
OEM for the correct procedure.
4. Use Tooling (A) in order to rotate the crankshaft so that number one piston is at top dead
center on the compression stroke. Refer to System Operation, Testing and Adjusting,
"Finding Top Center Position for No.1 Piston" for the correct procedure.
Note: Do not use excessive force to install Tooling (D). Do not use Tooling (D) to hold the
crankshaft during repairs.
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4. Illustration 1 g02486477
5. Remove plug (1) from the cylinder block. Remove O-ring seal (2) from the plug.
6. Use Tooling (A) in order to rotate the crankshaft so that number one piston is at top dead
center on the compression stroke. Refer to System Operation, Testing and Adjusting,
"Finding Top Center Position for No.1 Piston" for the correct procedure. Install Tooling (D)
through Hole (W) in order to lock the crankshaft so that number one piston is at top dead
center on the compression stroke.
7. Remove Tooling (D).
8. Use Tooling (A) in order to rotate the crankshaft in a clockwise direction and position the
crankshaft at the safe position. Refer to System Operation, Testing and Adjusting, "Position
the Valve Mechanism Before Maintenance Procedures" for the correct procedure.
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5. Illustration 2 g02048655
9. Use Tooling (E) in order to loosen threaded inserts (4) on all rocker arms (3). Unscrew
threaded inserts (4) on all rocker arms (3) until all valves are fully closed. Ensure that the
guides (5) for the pushrods are left in position on the threaded inserts (4).
Note: Ensure that ALL threaded inserts are fully unscrewed.
10. Use Tooling (A) in order to rotate the crankshaft so that number one piston is at top dead
center on the compression stroke. Refer to System Operation, Testing and Adjusting,
"Finding Top Center Position for No.1 Piston" for the correct procedure. Install Tooling (D)
through Hole (W) in order to lock the crankshaft so that number one piston is at top dead
center on the compression stroke. Refer to Illustration 1.
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6. Illustration 3 g02488136
11. Install Tooling (B) through Hole (X) in camshaft gear (6) into the front housing. Use
Tooling (B) in order to lock the camshaft in the correct position. Refer to System Operation,
Testing and Adjusting, "Finding Top Center Position for No.1 Piston" for the correct
procedure.
12. Use Tooling (C) in order to lock the fuel injection pump gear in the correct position. Refer
to Disassembly and Assembly, "Fuel Injection Pump - Remove" for the correct procedure.
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7. Illustration 4 g02052394
13. If the right-hand side of the engine is equipped with a hydraulic pump, remove the hydraulic
pump. Refer to OEM for the correct procedure.
14. If necessary, remove bolts (7) from plate (8). Remove plate (8) and remove O-ring seal (9).
15. Remove circlip (10) and remove gear assembly (11) from front housing (12).
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8. Illustration 5 g02053673
16. If necessary, follow Step 16.a through Step 16.b in order to disassemble gear assembly (11).
a. Remove circlip (13) from gear assembly (11).
b. Place gear assembly (11) on a suitable support. Press bearing (14) from gear (15).
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9. Illustration 6 g02048714
17. Mark gear (6), gear (16), gear (17) and gear (18) in order to show alignment. Refer to
Illustration 6.
Note: Identification will ensure that the gears can be installed in the original alignment.
18. Remove camshaft gear (6). Refer to Disassembly and Assembly, "Camshaft Gear - Remove
and Install" for the correct procedure.
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10. Illustration 7 g02053984
19. Remove bolts (22) and bolts (24).
20. Remove tube assembly (23) from idler gear (16) and idler gear (26).
21. Remove plate (21).
22. Remove idler gear (16) from hub (20) (not shown).
23. Remove idler gear (26) and idler gear hub (25) from front housing (12).
24. Remove hub (20) (not shown) from front housing (12).
25. If necessary, remove bearing (19) from front housing (12). Refer to Disassembly and
Assembly, "Housing (Front) - Remove" for the correct procedure.
Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A
9U-7336 Housing 1
5P-7305 Engine Turning Tool 1
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11. B 230-6284 Timing Pin (Camshaft) 1
C 364-9107 Timing Pin(Fuel Injection Pump) 1
D
136-4632 Timing Pin (Crankshaft) 1
268-1966 Adapter 1
E 298-5564 T40Torx Socket 1
F 207-1601 Rubber Lubricant 1
G 7M-7456 Bearing Mount Compound 1
H
9U-7324 Indicator Bracket 1
7H-1942 Dial Indicator 1
3S-3268 Indicator Contact Point 1
7H-1940 Universal Attachment 1
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
Note: The fuel injection pump must remain locked until the procedure instructs you to unlock the
fuel injection pump.
1. Ensure that number one piston is at top dead center on the compression stroke. Refer to
System Operation, Testing and Adjusting, "Finding Top Center Position for No.1 Piston"
for the correct procedure.
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12. Illustration 8 g02488176
2. If necessary, install Tooling (D) into Hole (W) in the cylinder block. Use Tooling (D) in
order to lock the crankshaft in the correct position. Refer to System Operation, Testing and
Adjusting, "Finding Top Center Position for No.1 Piston" for the correct procedure.
Note: Do not use excessive force to install Tooling (D). Do not use Tooling (D) to hold the
crankshaft during repairs.
3. Ensure that all of the components of the front gear group are clean and free from wear and
damage. If necessary, replace any components that are worn or damaged.
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13. Illustration 9 g02048660
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14. Illustration 10 g02053693
4. If necessary, Install bearing (19) to front housing (12). Refer to Disassembly and Assembly,
"Housing (Front) - Install" for the correct procedure.
5. Install hub (20) to the recess of front housing (12). Ensure that the oil Hole (Y) is to the top
of the hub.
6. Ensure that the fuel injection pump is locked in the correct position. Refer to Disassembly
and Assembly, "Fuel Injection Pump - Install" for the correct procedure.
7. Lubricate idler hub (20) with clean engine lubricating oil. Install idler gear (16) to the idler
hub. Ensure that the timing marks are toward the front of the idler gear. Align timing marks
on idler gear (16) with gear (17) and gear (18).
8. Lubricate idler gear hub (25) with clean engine lubricating oil and install idler gear (26) to
the idler gear hub. Install the assembly for idler gear (26) to front housing (12).
Note: Ensure that the idler gear hub and the idler gear are correctly aligned.
9. Position plate (21) onto idler gear (16).
Note: Ensure that the identification mark TOP is upward.
10. Position tube assembly (23) onto idler gear (16) and idler gear (26). Install bolts (22) and
bolts (24).
Note: Ensure that the tube is correctly positioned on the hubs of the idler gears.
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15. 11. Tighten bolts (22) and bolts (24) to a torque of 44 N·m (32 lb ft).
Illustration 11 g02488178
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16. Illustration 12 g02488136
12. Install camshaft gear (6). Loosely install bolt (28) and washer (27) for the camshaft gear.
Refer to Disassembly and Assembly, "Camshaft Gear - Remove and Install" for the correct
procedure.
13. Install Tooling (B) through Hole (X) in camshaft gear (6) into the front housing.
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17. Illustration 13 g02488216
14. Ensure that the timing marks on gear (6), gear (16), gear (17) and gear (18) are in alignment
and that the mesh of the gears is correct.
15. Remove Tooling (B), Tooling (C), and Tooling (D).
16. When bolt (28) is a 8.8 Grade. Tighten bolt (28) for camshaft gear (6) to a torque of 95 N·m
(70 lb ft).
When bolt (28) is a 10.9 Grade. Tighten bolt (28) to a torque of 120 N·m (89 lb ft).
17. Use Tool (H) in order to check the end play of the camshaft gear. Refer to Specifications,
"Camshaft" for more information.
18. Use Tool (H) in order to check the end play of the idler gears. Refer to Specifications, "Gear
Group (Front)" and refer to Disassembly and Assembly, "Idler Gear - Remove and Install"
for further information.
19. Use Tooling (H) in order to measure the backlash for gear (6), gear (16), gear (17) and gear
(16). Refer to Specifications, "Gear Group (Front)" for further information.
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18. Illustration 14 g02058193
20. If necessary, follow Step 20.a through Step 20.c in order to assemble gear assembly (10).
a. Apply a small continuous bead of Tooling (G) to inner Surface (Z) of bearing (14).
Place the inner race of bearing (14) onto a suitable support. Press the shaft of gear
(15) into bearing (14) until the shoulder of the gear is against the bearing. Remove
any excess bearing mount compound.
b. Install circlip (13) to gear assembly (11).
c. Lightly lubricate bearing (14) and gear assembly (11) with clean lubricating oil.
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19. Illustration 15 g02052394
21. Install gear assembly (11) to front housing (12). Ensure that the shaft of gear assembly (11)
is correctly aligned with the bearing in front housing (12).
22. Install circlip (10) to front housing (12).
Note: Ensure that the circlip is correctly located in the front housing.
23. Ensure that there is tactile backlash between the camshaft gear and the accessory drive gear.
24. If the right-hand side of the engine is equipped with a hydraulic pump, install the hydraulic
pump. Refer to OEM for the correct procedure.
25. If necessary, lightly lubricate a new O-ring seal (9) with Tooling (F). Install new O-ring seal
(9) to plate (8). Install plate (8) to front housing (12).
26. Install bolts (7) to plate (8). Tighten the bolts to a torque of 10 N·m (88 lb in).
27. Lubricate each gear with clean engine oil.
NOTICE
Failure to ensure that the crankshaft is positioned at the safe position
will result in interference between the pistons and the valves.
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20. Interference between the pistons and the valves will result in damage to
the engine.
28. Use Tooling (A) in order to rotate the crankshaft in a clockwise direction and position the
crankshaft at the safe position. Refer to System Operation, Testing and Adjusting, "Position
the Valve Mechanism Before Maintenance Procedures" for the correct procedure.
Illustration 16 g02048655
29. Ensure that the guides (5) for the pushrods are correctly positioned on the threaded inserts
(4). Use Tooling (E) in order to tighten threaded inserts (4) on all rocker arms (3). Tighten
the threaded inserts to a torque of 30 N·m (265 lb in).
Note: When the threaded insert is tightened, the threaded insert must be correctly seated
into the cup for the pushrod.
30. If the engine is equipped with an air compressor, install the air compressor. Refer to
Disassembly and Assembly, "Air Compressor - Install" for the correct procedure.
31. If the air compressor is equipped with a hydraulic pump, install the hydraulic pump. Refer
to OEM for the correct procedure.
32. If the engine is equipped only with a hydraulic pump, install the hydraulic pump. Refer to
OEM for the correct procedure.
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21. 33. The engine should not be operated for a period 30 minutes after the threaded inserts on all
the rocker arms have been tightened. This period of time will allow the hydraulic lifters to
purge off excessive engine oil from the hydraulic lifters.
End By:
a. Install the front cover. Refer to Disassembly and Assembly, "Front Cover - Remove and
Install" for the correct procedure.
b. Install the valve mechanism cover. Refer to Disassembly and Assembly, "Valve Mechanism
Cover - Remove and Install" for the correct procedure.
Copyright 1993 - 2020 Caterpillar Inc.
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22. Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 312E EXCAVATOR PZL
Configuration: 312E & 312E L Excavators PZL00001-UP (MACHINE) POWERED BY C4.4 Engine
Disassembly and Assembly
C4.4 Engines for Caterpillar Built Machines
Media Number -UENR0602-11 Publication Date -01/08/2013 Date Updated -25/10/2017
i04048572
Gear Group (Front) - Remove and Install
SMCS - 1206-010
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A
9U-7336 Housing 1
5P-7305 Engine Turning Tool 1
B 230-6284 Timing Pin (Camshaft) 1
C 364-9107
Timing Pin
(Fuel Injection Pump)
1
D
136-4632 Timing Pin (Crankshaft) 1
268-1966 Adapter 1
E 298-5564 T40Torx Socket 1
Start By:
a. Remove the front cover. Refer to Disassembly and Assembly, "Front Cover - Remove and
Install" for the correct procedure.
b. Remove the valve mechanism cover. Refer to Disassembly and Assembly, "Valve
Mechanism Cover - Remove and Install" for the correct procedure.
NOTICE
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23. Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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.
Dispose of all fluids according to local regulations and mandates.
Note: Care must be taken in order to ensure that the fuel injection pump timing is not lost during
the removal of the front gear group. Carefully follow the procedure in order to remove the gear
group.
Illustration 1 g02485936
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24. Thank you very much for
your reading. Please Click
Here. Then Get COMPLETE
MANUAL. NO WAITING
NOTE:
If there is no response to
click on the link above,
please download the PDF
document first and then
click on it.
25. 1. Remove plug (1) from the cylinder block. Remove O-ring seal (2) from the plug.
2. Use Tooling (A) in order to rotate the crankshaft so that number one piston is at top dead
center on the compression stroke. Refer to System Operation, Testing and Adjusting,
"Finding Top Center Position for No.1 Piston" for the correct procedure. Install Tooling (D)
through Hole (W) in order to lock the crankshaft so that number one piston is at top dead
center on the compression stroke.
3. Remove Tooling (D).
4. Use Tooling (A) in order to rotate the crankshaft in a clockwise direction and position the
crankshaft at the safe position. Refer to System Operation, Testing and Adjusting, "Position
the Valve Mechanism Before Maintenance Procedures" for the correct procedure.
Illustration 2 g01992077
5. Use Tooling (E) in order to loosen threaded inserts (4) on all rocker arms (3). Unscrew
threaded inserts (4) on all rocker arms (3) until all valves are fully closed. Ensure that the
guides (5) for the pushrods are left in position on the threaded inserts (4).
Note: Ensure that ALL threaded inserts are fully unscrewed.
6. Use Tooling (A) in order to rotate the crankshaft so that number one piston is at top dead
center on the compression stroke. Refer to System Operation, Testing and Adjusting,
"Finding Top Center Position for No.1 Piston" for the correct procedure. Install Tooling (D)
through Hole (W) in order to lock the crankshaft so that number one piston is at top dead
center on the compression stroke. Refer to Illustration 1.
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26. Illustration 3 g02485937
7. Install Tooling (B) through Hole (X) in camshaft gear (6) into the front housing. Use
Tooling (B) in order to lock the camshaft in the correct position. Refer to System Operation,
Testing and Adjusting, "Finding Top Center Position for No.1 Piston" for the correct
procedure.
8. Install Tooling (D) into Hole (W) in the cylinder block. Use Tooling (D) in order to lock the
crankshaft in the correct position. Refer to System Operation, Testing and Adjusting,
"Finding Top Center Position for No.1 Piston" for the correct procedure.
Note: Do not use excessive force to install Tooling (D). Do not use Tooling (D) to hold the
crankshaft during repairs.
9. Use Tooling (C) in order to lock the fuel injection pump gear in the correct position. Refer
to Disassembly and Assembly, "Fuel Injection Pump - Remove" for the correct procedure.
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27. Illustration 4 g01992078
10. Mark gear (6), gear (7), gear (8) and gear (9) in order to show alignment. Refer to
Illustration 4.
Note: Identification will ensure that the gears can be installed in the original alignment.
11. Remove camshaft gear (6). Refer to Disassembly and Assembly, "Camshaft Gear - Remove
and Install" for the correct procedure.
12. Remove idler gear (7). Refer to Disassembly and Assembly, "Idler Gear - Remove and
Install" for the correct procedure.
Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A
9U-7336 Housing 1
5P-7305 Engine Turning Tool 1
B 230-6284 Timing Pin (Camshaft) 1
C 364-9107 1
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