525D, 535D, 545D and 555D Wheel Skidders Power Train Caterpillar

Axle Housing - Disassemble

Usage:

525D 2L5

Disassembly Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	439-3941	Link Bracket As	2
B	1P-2420	Transmission Repair Stand	1
	FT-0957	Adapter Group	4
	FT-0996	Positioning Group	4
C	1P-2420	Transmission Repair Stand	1
D	439-3939	Link Bracket As	3
E	4C-8500	Spanner Wrench As⁽¹⁾	1
	120-9877	Spanner Wrench As⁽²⁾	1
	6V-7820	Torque Multiplier	1
F	150-1782	Crossblock	1
	154-6184	Forcing Bolt	1
	6V-7742	Full Nut	1
	8T-3282	Hard Washer	1
	8T-0359	Bolts	2
	8T-1757	Nuts	2
	9X-8268	Washers	4
	3H-0465	Puller Plate	2

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⁽¹⁾	Used for rear axle
⁽²⁾	Used for front axle

Start By:

Remove the axle.

Note: For the oscillating axle, remove the axle support. Refer to Disassembly and Assembly, "Front Axle Support - Remove and Install".

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Illustration 1	g06237923

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Illustration 2	g06237925

Attach Tooling (A) and a suitable lifting device to axle (3). The weight of axle (3) is approximately 1360 kg (3000 lb).
Install axle (3) onto Tooling (B).
Remove bolts (2) and axle housing (1). The weight of axle housing (1) is approximately 500 kg (1100 lb).
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Illustration 3 g06237926
Attach Tooling (A) and a suitable lifting device to the opposite end of axle housing (1).
Reposition axle housing (1) onto Tooling (C).
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Illustration 4 g06237938
Remove bolts (5) and ring gear (4). The weight of ring gear (4) is approximately 55 kg (121 lb)
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Illustration 5 g06237928

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Illustration 6 g06237929
Remove O-ring seal (6).
Attach Tooling (D) and a suitable lifting device to planetary carrier (8). The weight of planetary carrier (8) is approximately 80 kg (175 lb).
Expand retaining ring (7) to release retaining ring (7) and use the suitable lifting device to lift planetary carrier (8) out of the axle housing.
Note: Planetary carrier (8) must be disassembled to remove retaining ring (7) from planetary carrier (8).
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Illustration 7 g06237931
Use a suitable hammer and a punch to push spring pin (9) in planetary shaft (12).
Remove planetary shaft (12), two thrust washers (10), and planetary gear (11) .
Remove bearing (13) from planetary gear (11).
Remove spring pin (9) from planetary shaft (12).
Repeat Step 10 through Step 13 for the removal of the other two planetary gears.
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Illustration 8 g06237933
Use Tooling (E) to remove bearing nut (14).
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Illustration 9 g06237934
Attach Tooling (A) and a suitable lifting device to axle housing (1). Put slight lifting tension on axle housing (1).
Note: Bearing cone (15) will be removed at the same time as axle housing (1).
Install Tooling (F) onto axle housing (1). Use the center stud to push the axle shaft from axle housing (1). Make sure that upward pressure is constantly applied.
Use the suitable lifting device to remove axle housing (1) and bearing cone (15) from the axle shaft. The weight of axle housing (1) is approximately 205 kg (450 lb).
Remove bearing cone (15) from axle housing (1).
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Illustration 10 g06237935
Remove bearing cup (16) and the dowels.
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Illustration 11 g06237936
Remove Duo-Cone seal (17) and bearing cup (18) from the opposite end of axle housing (1).
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Illustration 12 g06237937
Remove Duo-Cone seal (20) and bearing cone (19) from the axle shaft.