Caterpillar Cat 928HZ Wheel Loader (Prefix DHC) Service Repair Manual Instant Download.pdf

Service Repair Manual
Models
930H Wheel Loader

Shutdown SIS
Previous Screen
Product: WHEEL LOADER
Model: 930H WHEEL LOADER DHC
Configuration: 928HZ 930H Wheel Loader DHC00001-04199 (MACHINE) POWERED BY C6.6 Engine
Disassembly and Assembly
924H, 924HZ, 928HZ and 930H Wheel Loaders Machine Systems
Media Number -KENR9440-02 Publication Date -01/08/2012 Date Updated -01/08/2012
i07528732
Loader Frame and Rear Frame - Connect
SMCS - 7051-077; 7054-077
S/N - DHC1-UP
S/N - HXC1-UP
Connection Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-1863 Retaining Ring Pliers 1
B
284-5122 Stand 1
8S-7611 Tube 1
8S-7615 Pin 1
C 8T-5255 Hydraulic Jack 1
D 417-1324 Repair Stand Set 2
H 189-0412 Shackle 2
J 5P-0960 Grease Cartridge 1
K 1P-0510 Driver Gp 1
L - Loctite C5A Copper Anti-Seize -
M 1P-0481 Drive Plate 2
N 1P-0495 Drive Plate 2
P
1B-2716 Bolt 1
6V-8185 Nut 1
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928HZ 930H Wheel Loader DHC00001-04199 (MACHINE) POWERED BY C6.6 En...
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https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...

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, PERJ1017, "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.
Note: Apply Tooling (J) to all seals before installation. Lubricate all pin bores and all pins with Tooling
(L) before installation of the pins.
Illustration 1 g01118635
Note: Reference Illustration 4 for seal orientation.
1. Use Tooling (K) to install lip seal (39) into upper cap (35).
2. Use Tooling (K) to install lip seal (38) into lower cap (37).
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3. Position lower cap (37).
4. Install three bolts (34) in equal spacing.
Lower Hitch
5. Lower the temperature of bearing cup (42).
6. Install bearing cup (42) so that bearing cup (42) contacts the lower cap.
7. Coat bearing cones (41) and (43) with oil.
8. Install bearing cones (41) and (43).
9. Lower the temperature of bearing cup (40) and install bearing cup (40).
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10. Remove bolts (34) and lower cap (37).
11. Install 1.5 mm (0.06 inch) of shims (36).
12. Install upper cap (35), lower cap (37), and three of bolts (34), as shown.
13. Use Tooling (M) and Tooling (P) to check the rolling torques of the two bearing assemblies.
14. Add or remove shims (36) until the rolling torque of the bearing assemblies are between
1.7 N·m to 5.6 N·m (15 lb in to 50 lb in).
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15. Install remaining bolts (34) onto upper cap (35).
16. Use Tooling (K) to install lip seal (33) into upper cap (28).
17. Use Tooling (K) to install lip seal (32) into lower cap (30).
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18. Position lower cap (30).
19. Install three bolts (27).
Upper Hitch
20. Lower the temperature of bearing cup (46).
21. Install bearing cup (46) so that bearing cup (46) contacts the lower cap.
22. Completely coat bearing cones (44) and (47) with oil.
23. Install bearing cones (44) and (47).
24. Lower the temperature of bearing cup (45) and install bearing cup (45).
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25. Remove bolts (27) and lower cap (30).
26. Install 2.0 mm (0.08 inch) of shims (29).
27. Install upper cap (28), lower cap (30), and three of bolts (27), as shown.
28. Use Tooling (N) and Tooling (P) to check the rolling torques of the two bearings.
29. Add or remove shims (29) until the rolling torque of each bearing is between 2.8 N·m to 11.2 N·m
(25 lb in to 99 lb in).
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30. Install remaining bolts (27) into upper cap (28).
31. Install spacer (31).
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32. Use a suitable towing device and a suitable lifting device to reposition frame assembly (18).
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33. Position frame assembly (18). Install pin assembly (19). Install bolt (20).
34. Use Tooling (B) to support the rear end of the machine. Use Tooling (C) to adjust the alignment of
the frames.
Upper Hitch
35. Lower the temperature of pin assembly (25). Install pin assembly (25) into the bore of the upper
hitch.
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928HZ 930H Wheel Loader DHC00001-04199 (MACHINE) POWERED BY C6.6 ...
2020/4/24

36. Install plate (22) and bolts (23), as shown.
37. Use a feeler gauge to measure the gap between the flange of pin assembly (25) and the top of the
hitch. Record the measurement.
38. Remove plate (22) and bolts (23).
39. Install shims (26) of the thickness that was recorded in Step 37 under pin assembly (25).
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40. Install bolts (24) to pin assembly (25).
41. Measure the gap between the bottom of pin assembly (25) and the bottom of the hitch. Record the
measurement.
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42. Install shims (21) with a thickness that is 0.25 mm (0.010 inch) less than the measured gap from Step
41.
43. Install plate (22) and bolts (23).
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44. Position steering metering unit (17). Install bolts (16) onto both sides of the steering column.
Position the floor mats into the cab.
45. Reposition bracket (15).
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46. Connect hose assembly (14) and install all mounting hardware.
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47. Reposition harness assembly (13). Install all mounting hardware onto harness assembly (13).
Connect harness assemblies (11) and (12). Connect harness assembly (10) onto both sides of the
machine.
48. Connect hose assemblies (8) and all mounting hardware. Connect hose assembly (9).
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49. Position hose assemblies (6) and hose assemblies (7). Connect hose assemblies (6) and hose
assemblies (7).
50. Install pin (5). Use Tooling (A) to install retaining ring (4).
51. Repeat Step 50 to install the pin into the steering cylinder on the other side of the machine.
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52. Install guard assemblies (3).
53. Install guard assemblies (2).
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54. Remove the suitable blocking from bucket (1).
55. Fill the hydraulic oil tank. The hydraulic tank capacity is approximately 73 L (19.3 US gal). Refer to
Operation and Maintenance Manual for the proper procedure.
End By:
a. Install the center drive shaft. Refer to Disassembly and Assembly, "Drive Shaft (Center) - Install".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Fri Apr 24 10:51:08 UTC+0800 2020
19/19
2020/4/24

Shutdown SIS
Previous Screen
924H, 924Hz, 928Hz and 930H Wheel Loaders Machine Systems
i02748684
Steering Frame Lock - Separate and Connect
SMCS - 7506-029
Connection Procedure
Personal injury or death can result from machine articulation or
movement.
Machine frames can move and a person can be crushed.
Connect the steering frame lock link between the front and rear frames
before working on machine. Secure clevis pin with locking pin.
Before operating the machine, fasten the steering frame lock link into
the stored position and secure the clevis pin with locking pin.
Failure to lock into the stored position before operating can result in loss
of steering.
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1. Remove hitch pin (2) from pin (1).
2. Move steering frame lock (3) in position to the front frame. Install pin (1) and hitch pin (2).
Note: To align the pin bores, move the front loader frame.
Separation Procedure
Personal injury or death can result from machine articulation or
movement.
Machine frames can move and a person can be crushed.
Connect the steering frame lock link between the front and rear frames
before working on machine. Secure clevis pin with locking pin.
Before operating the machine, fasten the steering frame lock link into
the stored position and secure the clevis pin with locking pin.
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Failure to lock into the stored position before operating can result in loss
of steering.
1. Remove pin (1) and hitch pin (2). Move steering frame lock (3) to the storage position.
2. Install pin (1) and hitch pin (2).
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Fri Apr 24 11:00:52 UTC+0800 2020
3/3
2020/4/24

Shutdown SIS
Previous Screen
924H, 924Hz, 928Hz and 930H Wheel Loaders Machine Systems
i05079160
System Pressure - Release
SMCS - 4250-553-PX; 4300-553-PX; 5050-553-PX
Machine Preparation
Personal injury can result from hydraulic oil pressure and hot oil.
Hydraulic oil pressure can remain in the hydraulic system after the
engine has been stopped. Serious injury can be caused if this pressure is
not released before any service is done on the hydraulic system.
Make sure all of the work tools have been lowered to the ground, and
the oil is cool before removing any components or lines. Remove the oil
filler cap only when the engine is stopped, and the filler cap is cool
enough to touch with your bare hand.
Escaping fluid under pressure, even a pinhole size leak, can penetrate
body tissue, causing serious injury, and possible death. If fluid is
injected into your skin, it must be treated immediately by a doctor
familiar with this type of injury.
Always use a board or cardboard when checking for a leak.
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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.
1. Refer to Testing and Adjusting, "Machine Preparation for Troubleshooting" for the machine
that is being serviced before performing the following procedure.
Release System Pressure
1. Move the machine to a location that is smooth, level, and hard. The location should also be
dry and free of debris. Stop the engine.
2. Permit only one operator on the machine. All other personnel should be kept away from the
machine.
3. If the machine is equipped with a ride control system, move the ride control switch to the
Manual position.
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4. Position the bucket or work tool just above the ground at a slight downward angle. This
position will ensure that the head end of the lift cylinders is pressurized.
5. Engage the parking brake.
6. Turn the engine start switch to the OFF position.
7. When the engine has stopped, turn the engine start switch back to the ON position so the
pilot oil can reach the main valve.
8. Move the implement lockout switch to the UNLOCKED position.
9. Move the lift control lever to the FLOAT position and the tilt control lever to the TILT
BACK position at the same time. This action allows the bucket or the work tool to tilt back
while the boom is lowered.
The bottom of the bucket or the work tool should rest flat on the ground. The weight of the
linkage should be supported by the ground. The pressure from the head end of the lift
cylinders and from the ride control accumulator is now vented to the hydraulic tank.
10. When the bucket or the work tool has settled to the ground, move both control levers to the
HOLD position. Then, repeatedly cycle the control levers through all positions in order to
purge any remaining pressure from the implement hydraulic system.
11. Turn the steering wheel several times in both directions in order to relieve the pressure in
the steering system. To release the pressure from steering cylinders on machines equipped
with joystick steering, the machine must not be operated for a minimum of 10 minutes. 10
minutes will allow sufficient time for the pressure in the steering system to dissipate.
12. Turn the engine start switch to the OFF position.
13. Depress the brake pedal repeatedly. This step will relieve any pressure that may be present
in the braking system.
14. Push in the plunger for the hydraulic tank breaker relief valve until all pressure is released.
Note: If the machine is not equipped with a hydraulic tank breaker relief valve, remove the
hydraulic tank cap slowly to relieve tank pressure.
Dead Electronics
1. If the electronics fail, all stored hydraulic oil pressure may not be relieved. The following
precautions should be taken.
2. Turn the engine OFF.
3. The machine should be secured with a lockout.
4. Use the appropriate stand or blocks to prevent undesired drift of implements.
5. Barriers should be used in order to prevent personnel from entering areas that implement
drift or movement could be hazardous.
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Caterpillar Cat 928HZ Wheel Loader (Prefix DHC) Service Repair Manual Instant Download.pdf

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