PL61 Pipelayer Power Train Caterpillar

Piston Motor (Hydrostatic) - Assemble

Usage:

PL61 6P2

Assembly Procedure

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Table 1
Required Tooling
Tool	Part Number	Part Description	Qty
A	136-1452	Retaining Ring Pliers As	1
C	1P-1863	Retaining Ring Pliers	1
F	126-7176	Forcing Screw	1
G	3H-0465	Push-Puller Plate	4
H	4C-5660	Threaded Adapter	1
J	5P-7288	Sleeve	1
K	149-4935	Pump and Motor Measuring Tool	1
L	8B-7548	Push-Puller Tool Gp	1
M	8B-7550	Push Puller Leg	2
N	-	Loctite 242	-

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Illustration 1	g01292001

Raise the temperature of bearing cone (49).
Use Tooling (J) to install bearing cone (49) onto shaft (37).
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Illustration 2 g01292009
Install bearing cup (47).
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Illustration 3 g01292014
Install spacer (48).
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Illustration 4 g01292016
Install bearing cup (45).
Raise the temperature of bearing cone (46).
Install bearing cone (46).
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Illustration 5 g01292002
Install shim (44).
Use Tooling (C) to install retaining ring (45).
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Illustration 6 g01292003

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Illustration 7 g01291304

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Illustration 8 g01291301
Raise the temperature of the housing.
Lower the temperature of shaft (37).
Install shaft (37), lip seal (38), and shim (36).
Use Tooling (A) to install retaining ring (35).
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Illustration 9 g01292004
Use Tooling (F), Tooling (H), Tooling (M), Tooling (G), and Tooling (L) to pull the shaft into the housing.
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Illustration 10 g01292005
Install piston (41), plate (42), and bolts (40).
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Illustration 11 g01292540

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Illustration 12 g01292542
Install Tooling (K) into barrel (32).
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Illustration 13 g01292006
Install barrel (32) onto piston (41).
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Illustration 14 g01291289
Install piston (30) and pin (29).
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Illustration 15 g01291283
Install port plate (28).
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Illustration 16 g01292011
Install head (3) and bolts (2).
Remove bolts (2) and head (3).
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Illustration 17 g01292006
Remove barrel (32) onto piston (41).
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Illustration 18 g01292559
Measure the Dimension (Z).
Subtract the lift-off dimension from Dimension (Z) to obtain the correct shim thickness. The lift-off dimension is 0.25 to 0.40 mm (0.010 to 0.016 inch).
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Illustration 19 g01292005

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Illustration 20 g01292013
Remove bolts (40) and plate (42).
Install pistons (39) and plate (42).
Apply Tooling (N) to bolts (40). Install bolts (40). Tighten bolts (40) to a torque of 38 ± 4 N·m (28 ± 3 lb ft).
Install spring (33) into piston (41).
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Illustration 21 g01292015
Install shim (34) into barrel (32).
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Illustration 22 g01291295
Install barrel (32) and O-ring seal (31).
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Illustration 23 g01291287
Install the O-ring seals, plug (25), plug (22), and plug (23).
Install valve (24) and bolts (21). Tighten bolts (21) to a torque of 75 N·m (55 lb ft).
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Illustration 24 g01291284
Install O-ring seal (17), pin (12), nut (13), solenoid (14), nut (20), bushing (18), piston (19), dowel (10), spring (15), retainer (16), spring (7), retainer (9), spring (8), and bushing (11).
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Illustration 25 g01291286
Install O-ring seals (6).
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Illustration 26 g01291282

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Improper assembly of parts that are spring loaded can cause bodily injury.
To prevent possible injury, follow the established assembly procedure and wear protective equipment.
Install valve assembly (5) and bolts (4). Tighten bolts (4) to a torque of 25 N·m (221 lb in).
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Illustration 27 g01291279
Install head (3) and bolts (2). Tighten bolts (2) to a torque of 87 N·m (64 lb ft).