854K Wheel Dozer and 992K Wheel Loader Machine Systems Caterpillar

Front Frame and Rear Frame - Separate

Usage:

854K H8M

Separation Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	6V-3175	Double Acting Cylinder	1
	9U-5346	Nut	1
	9U-5344	Puller Stud	1
	6V-4035	Sleeve	1
	350-7768	Electric Hydraulic Pump Gp	1
B⁽¹⁾	9U-7536	Lift Stand	2
	447-0910	Electric Hydraulic Pump (115 V)	1
	447-0911	Electric Hydraulic Pump (230 V)	1
B1	OR
	504-9826	Lift Gp (50/60 Hz)⁽²⁾	2
	504-9827	Lift Gp (50/60 Hz)⁽³⁾	2
D	8S-7615	Pin	2
	8S-7640	Stand	2
	8S-7621	Tube	2
E	350-7768	Electric Hydraulic Pump Gp	1
	9U-6814	Puller Stud	1
	124-4640	Sleeve	1
	5P-5212	Plate	1
	465-6061	Cylinder Gp	1
	9U-6810	Nut	1
F	350-7768	Electric Hydraulic Pump Gp	1
	9U-6814	Puller Stud	1
	5P-5212	Plate	1
	465-6061	Cylinder Gp	1
	9U-6810	Nut	1
	124-4641	Sleeve	1
	124-4638	Plate	1
G	350-7768	Electric Hydraulic Pump Gp	1
	9U-6814	Puller Stud	1
	5P-5212	Plate	1
	465-6061	Cylinder Gp	1
	9U-6810	Nut	1
	124-4641	Sleeve	1
	124-4639	Plate	1

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⁽¹⁾	Use Tooling (B) or (B1) based on requirements.
⁽²⁾	Operating-voltage (380-500V)
⁽³⁾	Operating-voltage (180-300V)

Start By:

Remove the cab
Remove the center drive shaft.
Remove the push arms and the blade.

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When you are using hydraulic cylinders and puller studs, always ensure that the rated capacity of the puller stud meets or exceeds the rated capacity of the hydraulic cylinder. If the puller stud does not meet or exceed the rated capacity of the hydraulic cylinder, a sudden failure of the puller stud could occur. The sudden failure of the puller stud could result in personal injury or death.

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At operating temperature the implement hydraulic oil tank is hot and under pressure. Hot oil can cause burns.

To prevent possible injury, release the pressure in the implement hydraulic system before hydraulic lines or components are disconnected or removed.

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At operating temperature, the steering and brake hydraulic oil tank is hot and under pressure. Hot oil can cause burns.

To prevent possible personal injury, release the pressure in the steering and brake hydraulic system before hydraulic lines or components are disconnected or removed.

Refer to Operation and Maintenance Manual, "Hydraulic System Oil (Implement and Hydraulic Fan) - Change" for the correct draining and filling procedures.
Refer to Operation and Maintenance Manual, "Hydraulic System Oil (Steering and Brake) - Change" for the correct draining and filling procedures.
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Illustration 1 g01461267

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Illustration 2 g02477146
Disconnect hose assemblies (3) and (4) from the rear loader frame.
Remove clamp (2) that secures harness assemblies (1) to the rear frame assembly.
Disconnect harness assemblies (1) and remove clip (5).
Tie the disconnected hose assemblies and the disconnected harness assemblies to the front frame assembly.
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Illustration 3 g00326207

Note: Because the pin assembly is a slip fit in the bores, the pin can be easily removed without the use of special tooling. If removal of the steering cylinder pin requires excessive force, perform Steps 7 and 8.
Remove pin retainer (6) and pin assembly (7).
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Illustration 4 g01512294
Assemble Tooling (A) on the head end of pin assembly (7) (not shown). Use Tooling (A) to remove pin assembly (7).
Repeat Steps 7 and 8 to remove pin assembly (7) on the opposite side of the machine.
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Illustration 5 g00403840

For Tooling (B)
Install Tooling (B) under the front part of the rear frame assembly on each side.
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Illustration 6 g06400754

Typical Example
For Tooling (B1)
Install Tooling (B1) under the front part of the rear frame assembly on each side. Refer to Tool Operating Manual, NEHS1328, "Lift Group (Stand - 60 Ton)" for more information on Tooling (B1).
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Illustration 7 g06400772

For Tooling (B)
Install Tooling (B) under the rear bumper.
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Illustration 8 g06400760

Typical Example
For Tooling (B1)
Install Tooling (B1) under the rear bumper.
Note: Tooling (B) is positioned under the frame rails of the rear frame assembly.
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Illustration 9 g06400766

For Tooling (B)
Make sure that the machine is resting on Tooling (B) so that the rear frame assembly is properly stabilized.
Note: Tooling (B1) is positioned under the frame rails of the rear frame assembly.
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Illustration 10 g06400761

Typical Example
For Tooling (B1)
Make sure that the machine is resting on Tooling (B1) so that the rear frame assembly is properly stabilized.
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Illustration 11 g00403899
Install Tooling (D) or suitable stands under the front frame assembly, as shown. Adjust the height of Tooling (D) in order for Tooling (D) to be easily moved as the front frame assembly is moved away from the rear frame assembly.
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Illustration 12 g00403900
Attach suitable chains to the front frame assembly, as shown. The suitable chains must be capable of supporting approximately 12260 kg (27000 lb).
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Illustration 13 g01512394
Place the forks of a suitable lift truck under the front frame assembly, as shown. Use suitable chains to secure the lift truck to the front frame assembly.
Steps 20 through 34 are for the removal of the upper hitch pin and the lower hitch pin.
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Illustration 14 g00403965
Remove bolts (8), bolts (9), and plate (10) from the bottom of the lower hitch.
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Illustration 15 g00403966
Remove hexagonal cap (11) from lower hitch pin (12).
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Illustration 16 g01513155
Install Tooling (E) on lower hitch pin (12) (not shown).
Use Tooling (E) to remove lower hitch pin (12) (not shown).
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Illustration 17 g00403905
Remove bolts (14), plate (13), and the shims from the bottom of the upper hitch.
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Illustration 18 g02699780
Disconnect hose assemblies (15), hose assemblies (16), and hose assemblies (17).
Remove neutralizer valves and mounting bracket (18) as an assembly.
Remove bracket assembly (19).
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Illustration 19 g00403909

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Illustration 20 g00403959
Remove bolts (21) and (20).
Remove plate (22) from the top of the upper hitch.
Remove shims (23).
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Illustration 21 g01513163

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Illustration 22 g00403963
Install Tooling (E) on upper hitch pin (24) (not shown).
Place shims in the area, as shown. Refer to Illustration 22. Placing the shims in this area will prevent the front frame assembly from lifting as upper hitch pin (24) is removed.
Use Tooling (E) to remove upper hitch pin (24).
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Illustration 23 g01513170
Use a suitable lifting device to remove Tooling (E) and upper hitch pin (24). The combined weight of Tooling (E) and upper hitch pin (24) is approximately 159 kg (350 lb). The weight of upper hitch pin (24) is approximately 70 kg (155 lb).
Separate the steering frame lock . Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".
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Illustration 24 g01513197
Make sure that spacer (25) at the bottom of the upper hitch does not hang up on the rear frame assembly during separation.
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Illustration 25 g00403968

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Illustration 26 g02595859
Slowly pull the front frame assembly away from the rear frame assembly. Continue to move the stands, the hoist, and the suitable chains. Refer to Step 16. Pull the front frame assembly until the two assemblies are separated by approximately 610 mm (24.0 inch).
Chock the front tires and lower the front frame assembly onto Tooling (D). The bearings and the seals can be serviced now.
Note: Steps 39 through 45 are for the removal of the upper hitch bearings.
Remove spacer (25) from the upper hitch assembly.
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Illustration 27 g00326226
Disconnect tube assembly (26) from the lower cap of the upper hitch.
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Illustration 28 g00326227

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Illustration 29 g00326228
Mark the radial positions of upper cap (28) and of lower cap (29).
Remove bolts (27), lower cap (29), and upper cap (28).
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Illustration 30 g00326229
Remove shims (30).
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Illustration 31 g01513217
Install Tooling (F) to the upper hitch assembly. Use Tooling (F) to remove bearing cup (31) and bearing cup (33) from the bore in the upper hitch. Use Tooling (F) to remove bearing cone (32) and bearing cone (34) from the bore in the upper hitch.
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Illustration 32 g01513224
Remove lip seal (35) from the upper cap and from the lower cap of the upper hitch assembly.
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Illustration 33 g01513231

Note: Steps 46 through 49 are for the removal of the lower hitch bearings.
Remove bolts (36) and cap (37) from the hitch assembly of the front frame assembly.
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Illustration 34 g01513233
Remove shims (38).
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Illustration 35 g01513236
Remove bolts (39) and lower cap (40) from the lower hitch.
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Illustration 36 g01513240
Install Tooling (G) to the lower hitch assembly. Use Tooling (G) to remove bearing cup (41) and bearing cup (43) from the bore in the lower hitch. Use Tooling (G) to remove bearing cone (42) and bearing cone (44) from the bore in the lower hitch.
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Illustration 37 g01513248
Remove lip seal (45) from the upper cap and from the lower cap of the lower hitch assembly.