PL61 Pipelayer Machine Systems Caterpillar

Hook Winch - Disassemble

Usage:

PL61 WGS

Disassembly Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	1P-2420	Transmission Repair Stand	1
B	1P-1863	Retaining Ring Pliers	1
C	0S-1573	Bolt	1
D	1U-6405	Bearing Puller	1
E	1P-0510	Driver Group	1
F	138-7575	Link Bracket	2
G	1P-1855	Retaining Ring Pliers	1
H	1U-8758	Retaining Ring Pliers	1

Start By:

Remove the hook winch. Refer to Disassembly and Assembly, ""Hook Winch - Remove"" for the correct procedure.

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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.

Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.

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Illustration 1	g01604034

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Personal injury can result from being struck by parts propelled by a released spring force.
Make sure to wear all necessary protective equipment.

Follow the recommended procedure and use all recommended tooling to release the spring force.

Use a suitable lifting device in order to position hook winch (3) onto Tooling (A). The weight of hook winch (3) is approximately 499 kg (1100 lb).
Remove bolts (1) evenly . Remove adapter (2).
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Illustration 2 g01604334
Remove O-ring seal (4) from adapter (2).
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Illustration 3 g01604373
Remove springs (5).
Remove piston (6).
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Illustration 4 g01604993
Remove O-ring seal (7) and O-ring seal (8) from piston (6).
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Illustration 5 g01605033
Remove divider plates (9) and friction plates (10) (not shown).
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Illustration 6 g01605053
Remove brake hub assembly (11).
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Illustration 7 g01605833
Use Tooling (B) in order to remove retaining ring (12).
Remove clutch spacer (13) and brake hub (14) from shaft (15).
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Illustration 8 g01606094

Note: Mark the direction of sprag clutch (16). Sprag clutch (16) must be installed in the same orientation.
Remove sprag clutch (16) from brake hub (14).
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Illustration 9 g01606103
Remove clutch spacer (17) from shaft (15).
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Illustration 10 g01613153
Remove spacer plate (18).
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Illustration 11 g01613214
Remove bolt (19).
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Illustration 12 g01613173
Attach Tooling (F) and a suitable lifting device to clutch assembly (20). The weight of clutch assembly (20) is approximately 150 kg (330 lb).
Remove bolts (21) and the washers. Remove cover (22) and O-ring seal (23) (not shown).
Use Tooling (F) and the suitable lifting device in order to support clutch assembly (20). Remove remaining bolts (19) and the washers. Remove clutch assembly (20).
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Illustration 13 g01613253
Use two people in order to remove ring gear (24). The weight of ring gear (24) is approximately 23 kg (50 lb).
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Illustration 14 g01613295
Remove bolts (25) and the washers. Remove mounting base (26). Remove the tie bar.
Repeat Step19 on the other end of the winch.
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Illustration 15 g01613374
Attach Tooling (F) and a suitable lifting device to planetary gear assembly (27). The weight of planetary gear assembly (27) is approximately 34 kg (75 lb). Use Tooling (F) and the suitable lifting device in order to remove planetary gear assembly (27).
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Illustration 16 g01613414
Use Tooling (G) in order to remove retaining rings (28) from pin (29).
Repeat Step 22 for the remaining pins.
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Illustration 17 g01613454
Use a suitable press in order to remove pin (29) from carrier (30). Remove thrust rings (31) and planetary gear (32).
Repeat Step 24 for the remaining gears.
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Illustration 18 g01613479
Use Tool (C) in order to remove plug (34) from brake housing (33).
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Illustration 19 g01613494
Remove O-ring seal (35) from plug (34).
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Illustration 20 g01613673
Rotate brake housing (33) in order to locate bolts (36). Remove bolts (36) and the washers.
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Illustration 21 g01613675
Attach Tooling (F) and a suitable lifting device to brake housing (33). The weight of brake housing (33) is approximately 51 kg (112 lb). Use Tooling (F) and the suitable lifting device in order to remove brake housing (33) from cable drum (37).
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Illustration 22 g01613700
Remove retaining ring (38) from ring gear (39).
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Illustration 23 g01613713
Remove carrier assembly (40) from ring gear (39).
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Illustration 24 g01613735
Remove sun gear (41).
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Illustration 25 g01613753
Use Tooling (G) in order to remove retaining rings (42) from pin (43).
Repeat Step 33 for the remaining pins (43).
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Illustration 26 g01613817
Use a suitable press in order to remove pin (43). Remove thrust rings (44) and planetary gear (45).
Repeat Step 35 for the remaining gear assemblies.
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Illustration 27 g01613837
Use a suitable press in order to remove bearings (46).
Repeat Step 37 for the remaining planetary gears.
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Illustration 28 g01613854
Use a suitable press in order to remove wear plate (47). Inspect wear plate (47) for wear. If wear plate (47) is less than 5.46 mm (0.220 inch) thick, replace wear plate (47).
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Illustration 29 g01613874
Use Tooling (B) in order to remove retaining ring (48) from ring gear (39). Remove ring gear (39).
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Illustration 30 g01613895
Remove spacer (49) from ring gear (39).
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Illustration 31 g01613934
Use a soft hammer in order to remove shaft (50) from brake housing (33).
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Illustration 32 g01613954
Remove bearing (51), lip seal (52), and O-ring seal (53) from shaft (50).
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Illustration 33 g01613976
Use Tooling (H) in order to remove retaining ring (55). Remove O-ring seal (56) from carrier (54).
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Illustration 34 g01613999
Use Tooling (D) in order to remove carrier (54) from brake housing (33).
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Illustration 35 g01614017
Use Tooling (E) and a suitable press in order to remove bearing (57).
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Illustration 36 g01614053

Use Tooling (E) and a soft hammer in order to remove lip seal (58) (not shown).

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Illustration 37	g01614077

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Personal injury can result from parts under high spring pressure.

Spring force can cause parts to come off suddenly. Contact your Caterpillar dealer for disassembly instructions before removing any parts.

Remove bolts (59). Remove spring retainer (60).
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Illustration 38 g01614085
Remove O-ring seal (61).
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Illustration 39 g01614093
Use Tooling (E) and a suitable press in order to remove bearing (62).
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Illustration 40 g01614095
Remove springs (63) from clutch piston (64).
Note: Note the orientation of springs (63) for assembly purposes.
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Illustration 41 g01614113
Attach Tooling (F) and a suitable lifting device to clutch piston (64). The weight of clutch piston (64) is approximately 27 kg (60 lb). Use Tooling (F) and the suitable lifting device in order to remove clutch piston (64) from clutch housing (65).
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Illustration 42 g01615075
Remove O-ring seal (66).
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Illustration 43 g01615216
Remove hub (67). Use a suitable press in order to remove bearing (68).
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Illustration 44 g01615234
Remove divider plates (69) and friction plates (70). Remove spacer (71).
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Illustration 45 g01615255
Use Tooling (B) in order to remove retaining ring (74) from spline (73). Use Tooling (H) in order to remove retaining ring (72) from the housing.
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Illustration 46 g01615358
Use a suitable press in order to remove bearing (75) from the housing.
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Illustration 47 g01615362
Remove lip seal (76).