This document is a service manual for Case wheel loaders models 621F and 721F from serial number NBF213588 and above. It contains specifications and repair procedures for the engine, transmission, drivetrain, brakes, hydraulics, steering, wheels, climate control, electrical systems, and cab/bodywork of the loaders. Torque specifications are provided for many components. The manual is intended to assist technicians with maintenance and repairs.
Case 621 f tier 2 wheel loader service repair manual pin nbf213588 and abovefusjefkskemme
This document is a service manual for Case wheel loaders models 621F and 721F from serial number NBF213588 and above. It contains specifications and repair procedures for the engine, transmission, drivetrain, brakes, hydraulics, steering, wheels, climate control, electrical systems, and cab/bodywork of the loaders. Torque specifications are provided for many components. The manual is intended to assist technicians with maintenance and repairs.
Case 621 f tier 2 wheel loader service repair manual pin nbf213588 and aboveujufjjskkemmd
This document is a service manual for Case wheel loaders models 621F and 721F from serial number NBF213588 and above. It contains specifications and repair procedures for the engine, transmission, drivetrain, brakes, hydraulics, steering, wheels, climate control, electrical systems, and cab/bodywork of the loaders. Torque specifications are provided for many components. The manual is intended to assist technicians with maintenance and repairs.
Case 621 f tier 2 wheel loader service repair manual pin nbf213588 and abovefjjskekdmme
This document is a service manual for Case wheel loaders models 621F and 721F from serial number NBF213588 and above. It contains specifications and repair procedures for the engine, transmission, drivetrain, brakes, hydraulics, steering, wheels, climate control, electrical systems, and cab/bodywork of the loaders. Torque specifications are provided for many components. The manual is intended to assist technicians with maintenance and repairs.
Case 721 f tier 2 wheel loader service repair manual pin nbf213588 and aboveujufjjskkemmd
This document is a service manual for Case wheel loaders models 621F and 721F from serial number NBF213588 and above. It contains specifications and repair procedures for the engine, transmission, drivetrain, brakes, hydraulics, steering, wheels, climate control, electrical systems, and cab/bodywork of the loaders. Torque specifications are provided for many components. The manual is intended to assist technicians with maintenance and repairs.
Case 721 f tier 2 wheel loader service repair manual pin nbf213588 and abovefusjefkskemme
This service manual provides instructions for servicing the engine and other components of Case wheel loaders models 621F and 721F. The manual contains detailed removal and installation procedures, specifications, and part numbers needed for maintenance and repairs. Sections cover the engine, transmission, axles, brakes, hydraulics, electrical systems, and other parts.
Case 721 f tier 2 wheel loader service repair manual pin nbf213588 and abovefusjfjsekemwer
This service manual provides instructions for servicing the engine and other components of Case wheel loaders models 621F and 721F. The manual contains detailed removal and installation procedures, specifications, and part numbers needed for maintenance and repairs. Sections cover the engine, transmission, axles, brakes, hydraulics, electrical systems, and other parts.
Case 621 f tier 2 wheel loader service repair manual pin nbf213588 and abovejfdskekdmme
This document is a service manual for Case wheel loaders models 621F and 721F from serial number NBF213588 and above. It contains specifications and repair procedures for the engine, transmission, drivetrain, brakes, hydraulics, steering, wheels, climate control, electrical systems, and cab/bodywork of the loaders. Torque specifications are provided for many components. The manual is intended to assist technicians with maintenance and repairs.
Case 621 f tier 2 wheel loader service repair manual pin nbf213588 and abovefusjfjsekemwer
This document is a service manual for Case wheel loaders models 621F and 721F from serial number NBF213588 and above. It contains specifications and repair procedures for the engine, transmission, drivetrain, brakes, hydraulics, steering, wheels, climate control, electrical systems, and cab/bodywork of the loaders. Torque specifications are provided for many components. The manual is intended to assist technicians with maintenance and repairs.
Case 621 f tier 2 wheel loader service repair manual pin nbf213588 and abovefusjefkskemme
This document is a service manual for Case wheel loaders models 621F and 721F from serial number NBF213588 and above. It contains specifications and repair procedures for the engine, transmission, drivetrain, brakes, hydraulics, steering, wheels, climate control, electrical systems, and cab/bodywork of the loaders. Torque specifications are provided for many components. The manual is intended to assist technicians with maintenance and repairs.
Case 621 f tier 2 wheel loader service repair manual pin nbf213588 and aboveujufjjskkemmd
This document is a service manual for Case wheel loaders models 621F and 721F from serial number NBF213588 and above. It contains specifications and repair procedures for the engine, transmission, drivetrain, brakes, hydraulics, steering, wheels, climate control, electrical systems, and cab/bodywork of the loaders. Torque specifications are provided for many components. The manual is intended to assist technicians with maintenance and repairs.
Case 621 f tier 2 wheel loader service repair manual pin nbf213588 and abovefjjskekdmme
This document is a service manual for Case wheel loaders models 621F and 721F from serial number NBF213588 and above. It contains specifications and repair procedures for the engine, transmission, drivetrain, brakes, hydraulics, steering, wheels, climate control, electrical systems, and cab/bodywork of the loaders. Torque specifications are provided for many components. The manual is intended to assist technicians with maintenance and repairs.
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Case 721 f tier 2 wheel loader service repair manual pin nbf213588 and abovefusjefkskemme
This service manual provides instructions for servicing the engine and other components of Case wheel loaders models 621F and 721F. The manual contains detailed removal and installation procedures, specifications, and part numbers needed for maintenance and repairs. Sections cover the engine, transmission, axles, brakes, hydraulics, electrical systems, and other parts.
Case 721 f tier 2 wheel loader service repair manual pin nbf213588 and abovefusjfjsekemwer
This service manual provides instructions for servicing the engine and other components of Case wheel loaders models 621F and 721F. The manual contains detailed removal and installation procedures, specifications, and part numbers needed for maintenance and repairs. Sections cover the engine, transmission, axles, brakes, hydraulics, electrical systems, and other parts.
Case 621 f tier 2 wheel loader service repair manual pin nbf213588 and abovejfdskekdmme
This document is a service manual for Case wheel loaders models 621F and 721F from serial number NBF213588 and above. It contains specifications and repair procedures for the engine, transmission, drivetrain, brakes, hydraulics, steering, wheels, climate control, electrical systems, and cab/bodywork of the loaders. Torque specifications are provided for many components. The manual is intended to assist technicians with maintenance and repairs.
Case 621 f tier 2 wheel loader service repair manual pin nbf213588 and abovefusjfjsekemwer
This document is a service manual for Case wheel loaders models 621F and 721F from serial number NBF213588 and above. It contains specifications and repair procedures for the engine, transmission, drivetrain, brakes, hydraulics, steering, wheels, climate control, electrical systems, and cab/bodywork of the loaders. Torque specifications are provided for many components. The manual is intended to assist technicians with maintenance and repairs.
Case 721 f tier 2 wheel loader service repair manual pin nbf213588 and abovefjjskekdmme
This document is a service manual for Case wheel loaders models 621F and 721F from serial number NBF213588 and above. It contains specifications and repair procedures for the engine, transmission, drivetrain, brakes, hydraulics, steering, wheels, climate control, electrical systems, and cab/bodywork of the loaders. Torque specifications are provided for many components. The manual is intended to assist technicians with maintenance and repairs.
Case 721 f tier 4 wheel loader service repair manualfusjefkskemme
This document provides a service manual for Case 621F and 721F wheel loaders with Tier 4 engines. It includes torque specifications for various components of the engine, transmission, axles, chassis, cooling, hydraulic, and electrical systems. The document is copyrighted and published by CNH America LLC.
Case 721 f tier 4 wheel loader service repair manualfusjfjsekemwer
This document provides a service manual for Case 621F and 721F wheel loaders with Tier 4 engines. It includes torque specifications for various components of the engine, transmission, axles, chassis, cooling, hydraulic, and electrical systems. The document is copyrighted and published by CNH America LLC.
Case 721 f tier 4 wheel loader service repair manualujufjjskkemmd
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Case 621 f tier 4 wheel loader service repair manualuuudfjjskkemmd
This document provides a service manual for Case 621F and 721F wheel loaders with Tier 4 engines. It includes torque specifications for various components of the engine, transmission, axles, chassis, cooling, hydraulic, and electrical systems. The document is copyrighted and published by CNH America LLC.
Case 621 f tier 4 wheel loader service repair manualfujsefxdeksemm
This document provides instructions for removing the engine from a Case 621F or 721F wheel loader. The key steps include draining fluids, disconnecting wiring harnesses and hoses, and loosening mounting hardware. Safety precautions are noted such as releasing hydraulic pressure. Tools are advised to avoid damaging emissions sensors. Balancing the hood is required for its removal. The process results in the engine being separated from the vehicle and prepared for maintenance or replacement.
CASE 721F Tier 4 Wheel Loader Service Repair Manual.pdffujsekmdijdjd3e
This document provides a service manual for Case 621F and 721F wheel loaders with Tier 4 engines. It contains 23 steps to remove the engine from the machine, beginning with preparing the machine by draining fluids, disconnecting wiring harnesses, and removing panels. Key steps include loosening hood hinge bolts, disconnecting the lifting motor cylinder, removing battery cables, and lifting out the hood. The manual then details disconnecting intake and crankcase hoses and removing the intake air hose to fully separate the engine from the loader.
CASE 621F Tier 4 Wheel Loader Service Repair Manual 1.pdffujsekmdijdjd3e
This document provides a service manual for Case 621F and 721F wheel loaders with Tier 4 engines. It contains instructions for removing the engine, with 23 steps including draining fluids, disconnecting wiring harnesses and hoses, and removing mounting hardware. Safety notes are included to avoid damaging emissions sensors. Torque specifications are provided for various components. The document contains detailed repair and maintenance information for the engine, transmission, axles, brakes, hydraulics, electrical systems, and other components.
CASE 721F Tier 4 Wheel Loader Service Repair Manual.pdffjjsekmdmdm
This document provides a service manual for Case 621F and 721F wheel loaders with Tier 4 engines. It contains 23 steps to remove the engine from the machine, beginning with preparing the machine by draining fluids, disconnecting wiring harnesses, and removing panels. Key steps include loosening hood hinge bolts, disconnecting the lifting motor cylinder, removing battery cables, and lifting out the hood. Intake and crankcase hoses are then disconnected to fully remove the engine.
CASE 721F Tier 4 Wheel Loader Service Repair Manual.pdffujskemdidk8u1
This document provides a service manual for Case 621F and 721F wheel loaders with Tier 4 engines. It contains 23 steps to remove the engine from the machine, beginning with preparing the machine by draining fluids, disconnecting wiring harnesses, and removing panels. Key steps include loosening hood hinge bolts, disconnecting the lifting motor cylinder, removing battery cables, and lifting out the hood. The manual instructs technicians to tag wiring connectors and hoses for reinstallation.
CASE 621F Tier 4 Wheel Loader Service Repair Manual 1.pdffjjsekmdmdm
This document provides a service manual for Case 621F and 721F wheel loaders with Tier 4 engines. It contains 23 steps to remove the engine from the machine, beginning with preparing the machine by draining fluids, disconnecting wiring harnesses, and removing panels. Key steps include loosening hood hinge bolts, disconnecting the lifting motor cylinder, removing battery cables, and lifting the hood off the frame. The manual instructs technicians to tag wiring connectors and hoses for reinstallation.
CASE 621F Tier 4 Wheel Loader Service Repair Manual 1.pdff7usejkdkdmdmw2
This document provides a service manual for Case 621F and 721F wheel loaders with Tier 4 engines. It includes torque specifications for various components of the engine, transmission, axles, chassis, cooling, hydraulic, and electrical systems. The document is copyrighted and published by CNH America LLC.
CASE 621F Tier 4 Wheel Loader Service Repair Manual 1.pdffujskemdidk8u1
This document provides a service manual for Case 621F and 721F wheel loaders with Tier 4 engines. It contains 23 steps to remove the engine from the machine, beginning with preparing the machine by draining fluids, disconnecting wiring harnesses, and loosening mounting hardware. Key steps include removing the hood, disconnecting engine wiring connectors, loosening intake and exhaust hoses, and draining the cooling system and oil sump. Proper safety procedures and the use of lifting straps are emphasized.
CASE 621F Tier 4 Wheel Loader Service Repair Manual 1.pdfjnjn9464773
This document provides a service manual for Case 621F and 721F wheel loaders with Tier 4 engines. It contains 23 steps to remove the engine from the machine, beginning with preparing the machine by draining fluids, disconnecting wiring harnesses, and removing panels. Key steps include loosening hood hinge bolts, disconnecting the lifting motor cylinder, removing battery cables, and lifting out the hood. Intake and crankcase hoses are then disconnected to fully remove the engine.
CASE 721F Tier 4 Wheel Loader Service Repair Manual.pdffjjksedmdm
This document provides a service manual for Case 621F and 721F wheel loaders with Tier 4 engines. It contains 23 steps to remove the engine from the machine, beginning with preparing the machine by draining fluids, disconnecting wiring harnesses, and removing panels. Key steps include loosening hood hinge bolts, disconnecting the lifting motor cylinder, removing battery cables, and lifting out the hood. Intake and crankcase hoses are then disconnected to fully remove the engine.
CASE 621F Tier 4 Wheel Loader Service Repair Manual 1.pdffujskekmdmd
This document provides a service manual for Case 621F and 721F wheel loaders with Tier 4 engines. It contains 23 steps to remove the engine from the machine, beginning with preparing the machine by draining fluids, disconnecting wiring harnesses, and removing panels. Key steps include loosening hood hinge bolts, disconnecting the lifting motor cylinder, removing battery cables, and lifting out the hood. Intake and crankcase hoses are then disconnected before the entire engine can be removed from the loader.
CASE 621F Tier 4 Wheel Loader Service Repair Manual 1.pdffenranzhi9518
This document provides instructions for removing the engine from a Case 621F or 721F wheel loader. The key steps include draining fluids, disconnecting wiring harnesses and hoses, loosening mounting hardware, and using lifting straps to remove the hood and expose the engine. Proper tagging of disconnected parts is emphasized. The process involves 24 numbered steps and illustrations to clearly show each step. Safety precautions are included to avoid damage to emission sensors from impact tools.
CASE 621F Tier 4 Wheel Loader Service Repair Manual 1.pdfu44yxxgx
This document is a service manual for Case wheel loaders models 621F and 721F with Tier 4 engines. It contains introduction sections and detailed contents for repair and maintenance of the engine, transmission, drivetrain, brakes, hydraulics, steering, electrical systems, and other components. Torque specifications are provided for many fasteners and components. The document also contains a section directing readers to a website for a full online service manual.
CASE 721F Tier 4 Wheel Loader Service Repair Manual.pdfxun6574
This document provides instructions for removing the engine from a Case 621F or 721F wheel loader. The key steps include draining fluids, disconnecting wiring harnesses and hoses, loosening mounting hardware, and using lifting straps to remove the hood and expose the engine. Safety precautions are noted, such as avoiding impact tools near emission sensors. Overall the summary provides a high-level overview of the engine removal process in 3 sentences or less.
CASE 621F Tier 4 Wheel Loader Service Repair Manual 1.pdfxun6574
This document provides instructions for removing the engine from a Case 621F or 721F wheel loader. The key steps include draining fluids, disconnecting wiring harnesses and hoses, loosening mounting hardware, and using lifting straps to remove the hood and expose the engine. Safety precautions are noted, such as avoiding impact tools near emission sensors. Overall the summary provides a high-level overview of the engine removal process in 3 sentences or less.
New Holland W110C Tier 4 Wheel Loader Service Repair Manual.pdfufjskem9didok
This document provides instructions for removing the engine from a W110C Wheel Loader. Key steps include: parking the machine safely, discharging pressure from hydraulic and brake systems, disconnecting batteries, draining coolant and oil, removing lift cylinders, and using lifting straps to raise the hood and access the engine. A solid steel bar is then used through the lifting straps to support the hood while the engine is removed. Removal instructions are provided in 11 sequential steps.
New Holland E39BSR Mini Excavator Service Repair Manual.pdfufjskem9didok
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2. Contents
INTRODUCTION
Engine....................................................................................... 10
Engine and crankcase.................................................................... 10.001
Air cleaners and lines..................................................................... 10.202
Engine lubrication system ................................................................ 10.304
Aftercooler ................................................................................ 10.310
Engine cooling system ................................................................... 10.400
Fan and drive............................................................................. 10.414
Engine generic sub-group ............................................................... 10.AAA
Transmission.............................................................................. 21
Powershift transmission .................................................................. 21.113
Powershift transmission external controls ................................................ 21.135
Powershift transmission internal components ............................................ 21.155
Four-Wheel Drive (4WD) system .................................................. 23
Drive shaft ................................................................................ 23.314
Front axle system ....................................................................... 25
Powered front axle ....................................................................... 25.100
Front bevel gear set and differential...................................................... 25.102
Final drive hub, steering knuckles, and shafts ........................................... 25.108
Rear axle system........................................................................ 27
Powered rear axle ........................................................................ 27.100
Rear bevel gear set and differential ...................................................... 27.106
Planetary and final drives................................................................. 27.120
Brakes and controls .................................................................... 33
Hydraulic service brakes ................................................................. 33.202
Hydraulic systems....................................................................... 35
Hydraulic systems ........................................................................ 35.000
47388956 22/05/2012
3. Variable displacement pump ............................................................. 35.106
Pilot system............................................................................... 35.357
Main control valve ........................................................................ 35.359
Auxiliary hydraulic valves and lines ...................................................... 35.525
Front loader arm hydraulic system ....................................................... 35.701
Steering..................................................................................... 41
Auxiliary steering ......................................................................... 41.910
Wheels...................................................................................... 44
Front wheels.............................................................................. 44.511
Cab climate control ..................................................................... 50
Air conditioning ........................................................................... 50.200
Electrical systems....................................................................... 55
Electrical system ......................................................................... 55.000
Fuel tank system ......................................................................... 55.011
Engine cooling system ................................................................... 55.012
Engine control system .................................................................... 55.015
Service brake electrical system .......................................................... 55.030
Parking brake electrical system .......................................................... 55.031
Hydraulic system control ................................................................. 55.036
Steering control system .................................................................. 55.047
Heating, Ventilation, and Air-Conditioning (HVAC) control system....................... 55.050
Cab Heating, Ventilation, and Air-Conditioning (HVAC) controls......................... 55.051
Harnesses and connectors ............................................................... 55.100
Engine starting system ................................................................... 55.201
Cold start aid ............................................................................. 55.202
Alternator ................................................................................. 55.301
Battery .................................................................................... 55.302
External lighting .......................................................................... 55.404
External lighting switches and relays..................................................... 55.405
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4. Warning indicators, alarms, and instruments............................................. 55.408
Loader arm and bucket control system................................................... 55.415
Cab/Platform harnesses and connectors................................................. 55.510
Cab controls .............................................................................. 55.512
Cab lighting............................................................................... 55.514
Wiper/Washer system .................................................................... 55.518
Cab brake controls ....................................................................... 55.519
Cab controls (Lift arm, Boom, Dipper, Bucket) ........................................... 55.524
FAULT CODES .......................................................................... 55.DTC
Platform, cab, bodywork, and decals............................................. 90
Pneumatically-adjusted operator seat .................................................... 90.124
Cab ....................................................................................... 90.150
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10. CONSUMABLES INDEX
Consumable IU PAGE
CASE Akcela Engine oil
15W-40
Engine - Install 10.001 / 45
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11. Engine - Engine and crankcase
Engine - Remove
621F INT, 721F INT
1. Park machine on a level surface and lower the bucket
to the ground. Put articulation lock in LOCKED posi-
tion and stop the engine.
RCPH10WHL063BAL 1
2. Actuate the brake pedal several times to discharge
brake accumulators.
RCPH10WHL435AAH 2
3. Put key switch in ON position. Pilot control switch
must be in the ON position and then move loader
control lever(s) back and forth at least 30 times to
release any pressure from hydraulic circuit. Put key
switch in OFF position.
RCPH10WHL119BAL 3
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12. Engine - Engine and crankcase
4. Raise grill located above the cooler box just behind
the cab. Then slowly loosen the hydraulic reservoir
filler cap to release pressure in the reservoir.
RCPH10WHL099BAL 4
5. Locate the master and hood raise switch by the bat-
tery box. Then raise the hood and put the master
disconnect switch in the OFF position.
RCPH10WHL106AAH 5
6. Raise both side panels (1). Then remove the thumb
screws (2) and inner fender panels (3).
NOTE: Left side of the machine is shown. The operation
is similar for the right side.
RAPH12WEL0597AA 6
7. Place a suitable container below radiator drain, re-
move radiator cap and coolant drain plug (arrow) to
drain engine coolant. Then reinstall drain plug and
radiator cap after coolant has drained.
NOTE: See machine specifications for cooling system vol-
ume.
RCPH10WHL054BAL 7
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13. Engine - Engine and crankcase
8. Place a suitable container below engine oil drain.
Remove drain plug and drain oil into container. Then
reinstall drain plug.
NOTE: See machine specifications for engine oil sump vol-
ume.
RCPH10WHL054BAL 8
9. After oil drains, disconnect drain hose from frame by
removing jam nut (1). Then pull hose from frame in
preparation for engine removal. (2)
RAPH12WEL0598AA 9
10. Double up a nylon lifting strap (1) and slide through
the exhaust stack (2) on the hood.
RAPH12WEL0599AA 10
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14. Engine - Engine and crankcase
11. Place a bar or pipe through the strap loop inside the
hood and attach the strap to a suitable lifting device.
Then raise the hood with the strap to release tension
on the lifting motor.
RAPH12WEL0600AA 11
12. Tag and disconnect the camera wire harness (if ma-
chine is equipped with a camera.)
RAPH12WEL0601AA 12
13. Cut wire ties and remove camera wire harness from
hood. Then place it off to the side in a safe location.
(If machine is equipped with a camera.)
RAPH12WEL0602AA 13
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15. Engine - Engine and crankcase
14. Remove mount bolt (1) and backup alarm wiring har-
ness clamp from cooler housing. Then tag and re-
move hood ground wire (2) from cooler housing.
RAPH12WEL0603AA 14
15. Tag and disconnect hood wiring harness connector
from rear chassis wiring harness connector.
RAPH12WEL0604AA 15
16. Have another person balance the hood and
LOOSEN the hood hinge mounting bolts (arrows)
from the cooler frame.
NOTE: Do not remove the hood hinge mounting bolts at
this time.
RAPH12WEL0605AA 16
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16. Engine - Engine and crankcase
17. Remove the pin from the bottom of the lifting motor
cylinder where it attaches to the loader frame.
RAPH12WEL0606AA 17
18. Put the master disconnect switch in the ON position.
Then, retract the lifting motor cylinder (2), replace pin
and disconnect wiring harness (1).
RAPH12WEL0062AA 18
19. Put master disconnect switch (1) in OFF position.
Remove the battery cover and disconnect ground
lead from the batteries (2). You may replace battery
cover if desired to give you a place to stand.
RAPH12WEL0608AA 19
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17. Engine - Engine and crankcase
20. Have another person balance the hood and remove
the hood hinge mounting bolts (arrows) from the
cooler frame.
RAPH12WEL0605AA 20
21. Carefully raise and remove hood from loader. Lower
hood onto suitable platform and disconnect lifting
equipment.
NOTE: Radiator overflow hose may interfere with left hand
hood hinge movement and hood removal.
RAPH12WEL0609AA 21
22. Tag and disconnect engine wiring harness connector
from air filter restriction switch.
RAPH12WEL0610AA 22
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18. Engine - Engine and crankcase
23. Tag and disconnect engine wiring harness connector
from air inlet humidity sensor.
RAPH12WEL0611AA 23
24. Loosen clamps on turbocharger and air filter hous-
ing. Then remove the intake air hose. Cover tur-
bocharger inlet to prevent debris entry.
RAPH12WEL0613AA 24
25. Loosen the clamp on the turbocharger for the after
cooler inlet elbow.
RAPH12WEL0614AA 25
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19. Engine - Engine and crankcase
26. Loosen the clamp on the hose at the after cooler inlet
and remove the tube.
RAPH12WEL0615AA 26
27. Loosen clamp on the air inlet hose at the air filter
housing.
RAPH12WEL0616AA 27
28. Remove bolts from the cooler box (1) and the cen-
ter support bracket (2) securing the air inlet hose
bracket. Then remove air inlet hose and bracket.
RAPH12WEL0617AA 28
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20. Engine - Engine and crankcase
29. Remove four the bolts securing the air filter housing
to the mounting support bracket. Then remove air
filter housing.
RAPH12WEL0618AA 29
30. Remove the four mounting bolts from the belt cover.
Then remove the cover.
NOTE: After removing the belt cover, remove the cover
mounting bracket from the left rear side of machine frame.
RAPH12WEL0619AA 30
31. Remove the drive belt from the engine.
RAPH12WEL0620AA 31
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21. Engine - Engine and crankcase
32. If loader is equipped with air conditioning, identify,
tag, and disconnect the engine wiring harness con-
nectors from air compressor clutch connector (1) and
high pressure switch (2). Then remove the three
mounting bolts (3) for the compressor and carefully
set it on the left battery cover.
RAPH12WEL0621AA 32
33. Tag and disconnect the wiring from the alternator.
RAPH12WEL0622AA 33
34. Tag and remove the wires from the starter solenoid
(1), the ground cable (2), and ground strap (3) from
the starter.
NOTE: Move the starter cables away from the engine.
RAPH12WEL0624AA 34
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22. Engine - Engine and crankcase
35. Remove bolts securing wiring harness clamps to en-
gine.
RAPH12WEL0625AA 35
36. Remove ground wires from the engine.
NOTE: Move the wiring harness away from the engine.
RAPH12WEL0625AA 36
37. If the machine is so equipped, unplug the engine
block heater and set it aside.
RAPH12WEL0626AA 37
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23. Engine - Engine and crankcase
38. Loosen the exhaust clamp from the turbocharger.
RAPH12WEL0627AA 38
39. Disconnect the engine coolant vent hose from the
engine.
RAPH12WEL0628AA 39
40. Loosen clamps and remove lower coolant hose from
the engine.
RAPH12WEL0629AA 40
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24. Engine - Engine and crankcase
41. Remove the radiator hose from the engine.
RAPH12WEL0630AA 41
42. Remove the return radiator hose (1) and the engine
coolant vent hose (2) from the top of the radiator.
RAPH12WEL0631AA 42
43. Remove hood wire harness clamp from the fan
shroud.
RAPH12WEL0632AA 43
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26. Engine - Engine and crankcase
47. Remove the heater hose (1) from the engine.
RAPH12WEL0636AA 47
48. Loosen the clamp on the intake manifold for the after
cooler output hose.
RAPH12WEL0637AA 48
49. Loosen the clamp on the after cooler, and remove
the after cooler outlet tube from the machine.
RAPH12WEL0638AA 49
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27. Engine - Engine and crankcase
50. Tag and disconnect the fuel filter heater wire (1) and
water sensor (2). Then drain fuel filter and discon-
nect inlet (3) and outlet (4) fuel lines from the fuel
filter head. Plug the lines and cap the fittings.
RAPH12WEL0639AA 50
51. Remove ground wire and fuel filter head attachment
bolt (1). Then remove fuel line support clamp (2).
RAPH12WEL0640AA 51
52. Tag and remove the grid heater cable (1).
NOTE: Hold the rear nut with a second wrench to prevent
grid heater damage.
RAPH12WEL0063AA 52
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28. 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.
29. Engine - Engine and crankcase
53. Remove wire harness support clamp.
RAPH12WEL0064AA 53
54. Tag and disconnect wire harness from primary fuel
filter.
RAPH12WEL0068AA 54
55. Remove hood lift cylinder support bracket.
RAPH12WEL0071AA 55
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30. Engine - Engine and crankcase
56. Attach suitable lifting straps to the muffler support
structure.
RAPH12WEL0072AA 56
57. Remove bolts securing the muffler support structure
at the front and rear of the structure. The mounting
points are positioned on the left and right side in the
front of the engine compartment, and in the center at
the rear of the engine compartment.
NOTE: The right front mount is shown.
RAPH12WEL0073AA 57
58. Use a suitable lifting device to carefully lift muffler
support structure (with muffler system components
attached) from the machine.
RAPH12WEL0075AA 58
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31. Engine - Engine and crankcase
59. Disconnect the wiring harness from the EDC 7 con-
troller.
NOTE: Lifting up on the lever will release the connector
from the controller.
RAPH12WEL0076AA 59
60. Remove the fuel line from the top of the primary fuel
filter, plug the line and cap the fitting.
NOTE: Make note on how fuel lines are routed.
RAPH12WEL0077AA 60
61. Remove the fuel line support clamp.
NOTE: Make note on how fuel lines are routed.
RAPH12WEL0078AA 61
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32. Engine - Engine and crankcase
62. Remove the upper and lower dust covers for the drive
shaft.
RAPH12WEL0079AA 62
63. Remove the drive shaft bolts (1) from the flywheel.
Move the drive shaft clear of the flywheel.
RAPH12WEL0080AA 63
64. Connect and turn on vacuum pump to hydraulic
reservoir. Tag and remove the hydraulic lines from
the brake system pump (arrow), plug the lines and
cap the fittings.
RAPH12WEL0081AA 64
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33. Engine - Engine and crankcase
65. Connect suitable lifting equipment to engine lifting
brackets. Take up all slack in lifting equipment. Re-
move the engine mounting bolts.
66. Slowly raise engine from rear chassis. Be sure all
wire harness connections and hoses have been dis-
connected and are clear of the engine. Guide the oil
drain hose from the frame as the engine is lifted. Re-
move engine from machine.
RAPH12WEL0082AA 65
Next operation:
Engine - Install (10.001)
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34. Engine - Engine and crankcase
Engine - Install
621F INT, 721F INT
WARNING
Hot liquid under pressure!
Never remove the filler cap or the recovery tank cap while the engine is running or the coolant is hot.
Let the system cool. Turn the filler cap to the first notch and allow any pressure to escape, and then
remove the filler cap. Loosen the recovery tank cap slowly to allow any pressure to escape.
Failure to comply could result in death or serious injury.
W0296A
Prior operation:
Engine - Remove (10.001)
RAIL12WEL0130FA 1
1. Engine mount bolt 5. Washers
2. Washer 6. Washer
3. Isolator upper 7. Nut
4. Isolator lower 8. Remote oil drain hose
1. Inspect engine mounts. If engine rubber isolators re-
quire replacement, remove and discard isolators (3)
and (4). Install new rubber isolator (4), then rubber
isolator (3).
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35. Engine - Engine and crankcase
2. Attach suitable lifting device to the engine and slowly
move it into position over the rear chassis. Be sure
all harness connections and hoses are out of the way
or positioned correctly for reconnecting, before low-
ering engine.
RAPH12WEL0082AA 2
3. Tighten engine mounting bolts to a torque of 244 -
298 N·m (180 - 220 lb ft).
RAPH12WEL0080AA 3
4. Disconnect lifting equipment from engine lifting
brackets.
RAPH12WEL0082AA 4
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36. Engine - Engine and crankcase
5. Connect vacuum pump to the hydraulic reservoir and
turn it on. Remove caps from fittings and plugs from
hoses. Connect hoses to brake pump following tags
installed during removal. Remove and discard tags.
Turn off and disconnect vacuum pump from hydraulic
reservoir.
RAPH12WEL0081AA 5
6. Connect engine oil drain hose (1) to frame bracket
(2).
RAPH12WEL0598AA 6
7. At front of engine, position drive shaft on engine cou-
pling. Install bolts to secure drive shaft to engine cou-
pling. Tighten the bolts to a torque of 53 - 62 N·m (39
- 46 lb ft).
RAPH12WEL0080AA 7
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37. Engine - Engine and crankcase
8. Install the upper and lower drive shaft dust covers.
Torque to 20 - 27 N·m (15 - 20 lb ft).
NOTE: Attach p-clamp, securing coolant line.
RAPH12WEL0079AA 8
9. Install bolt and clamp for fuel return hose.
RAPH12WEL0078AA 9
10. Remove cap from fitting and plug from the hose.
Then connect fuel line to the top of the primary fuel
filter.
RAPH12WEL0077AA 10
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