D6R Series II Track-Type Tractor Power Train Caterpillar

Bevel and Transfer Gears - Disassemble

Usage:

Disassembly Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	138-7575	Link Bracket	3
B	138-7575	Link Bracket	1
C	8H-0663	Bearing Puller	1
D	8T-2839	Spanner	1
E	1P-1863	Retaining Ring Pliers	1
F	1P-2321	Puller Assembly	1
F	5P-4170	Step Plate	1
G		Forcing Screw (1/2 inch by 13)	2
H		Bolt (1/4 inch by 20)	1

Start By:

Separate the transmission and bevel gears.

Note: Put identifying marks on all of the shims as the shims are removed. The identifying marks will ensure correct installation at assembly.

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Illustration 1	g00504390

Remove bolts (1) and roller brackets (2) from each side of the transfer gear case.
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Illustration 2 g00504393
Remove bolts (4) that hold transfer gear case (3) to the bevel gear case.
Install Tooling (A) and attach a hoist to Tooling (A). Remove transfer gear case (3) from the bevel gear case. The weight of the transfer gear case is approximately 101 kg (223 lb).
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Illustration 3 g00839158
Remove bolts (5) that hold cage (6) to transfer gear case (3).
Install Tooling (G). Tighten Tooling (G) evenly. Remove the cage and the shims from the transfer gear case.
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Illustration 4 g00830580
Remove lip seal (7) and O-ring seal (8) from cage (6).
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Illustration 5 g00504397

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NOTICE

Bearing cup (9) and bearing (10) will be damaged if the bearing cups are removed.
Remove bearing cup (9) and bearing (10) from cage (6), if necessary.
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Illustration 6 g00504398
Remove transfer gear (11) from transfer gear case (3).
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Illustration 7 g00504399

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NOTICE

Bearing cones (12) will be damaged if the bearing cones are removed from transfer gear (11).
Remove bearing cones (12) from transfer gear (11), if necessary.
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Illustration 8 g00839162
Remove the bolts and install Tooling (G) in cage (13). Tighten Tooling (G) evenly and remove cage (13) and the shims from transfer gear case (3).
Remove bearing cup (14) from cage (13).
Remove bearing cup (15) from transfer gear case (3).
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Illustration 9 g00504401
Remove the bolt and the retainer from pinion gear assembly (16).
Install Tooling (B) and attach a hoist. Remove pinion gear assembly (16) from the bevel gear case. The weight of the pinion gear assembly is approximately 33 kg (73 lb).
Remove the bearing cup for the pinion gear assembly from the bevel gear case.
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Illustration 10 g00504402
Put the pinion gear assembly in a press. Remove transfer gear (18) and bearing cone (17) from pinion gear (20).
Use Tooling (C) and a press to remove bearing cone (19) from pinion gear (20).
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Illustration 11 g00504403
Bend the locking tab away from spanner nut (22).
Place a pry bar between the bolt heads on the bevel gear. The prybar will prevent rotation of the bevel gear shaft.
Use Tooling (D) and remove spanner nut (22). Remove lockwasher (21) and the tongue washer.
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Illustration 12 g00504404
Use nylon straps and a hoist to support the bevel gear and the shaft in order to remove the bearings. The weight of the bevel gear and the shaft (23) is approximately 55 kg (121 lb).
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Illustration 13 g00839205

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Illustration 14 g00839194
Remove the bolts and install Tooling (G). Tighten Tooling (G) evenly and remove cage (24), bearing cone (26), spacer (27), and bearing cone (26). Remove shims (25) from the bevel gear case.
Remove bearing cup (28), center ring (29), and bearing cup (28) from cage (24).
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Illustration 15 g00839210
Remove the bolts and Tooling (G). Tighten Tooling (G) evenly and remove cage (29A) and the bearing from the bevel gear case.
Use a hoist and remove bevel gear and shaft (23) from the bevel gear case.
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Illustration 16 g00839425
Install Tooling (H) and remove dowel (30) from cage (29A). Remove race and roller assembly (31).
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Illustration 17 g00839428
Use Tooling (E) and remove the retaining ring from bevel gear shaft (23).
Use Tooling (F) and remove bearing race (33) from the bevel gear shaft.
Remove bolts (32) and the nuts. Install Tooling (H) in bevel gear (34). Tighten Tooling (H) evenly and remove the bevel gear from the bevel gear shaft.
Remove the tube assemblies from the bevel gear housing.