325C LCR Excavator Machine Systems Caterpillar

Hydraulic Tank and Filter - Assemble

Usage:

325C BKW

Assembly Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	138-7573	Link Bracket	4
B	9S-3263	Thread Lock Compound	1

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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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates.

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NOTICE

Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement.

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Illustration 1	g01180740

Position sight gauge (77) and install bolts (76). Tighten bolts (76) to a torque of 9 ± 1 N·m (79.7 ± 8.9 lb in).

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Illustration 2	g01179678

Install O-ring seals (75) into plate (73). Install plate (73) onto shell assembly (74) .

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Illustration 3	g01179677

Install O-ring seal (72) onto base (71) .

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Illustration 4	g01179676

Position base (71) and install screws (70). Tighten screws (70) to a torque of 4 ± 1 N·m (35.4 ± 8.9 lb in).

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Illustration 5	g01179675

Position pads (69) on plate (66). Install screws (68). Tighten screws (68) to a torque of 0.4 ± 0.04 N·m (3.54 ± 0.35 lb in). Install O-ring seal (67) .

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Illustration 6	g01179674

Install plate (66) and bolt (65). Tighten bolt (65) to a torque of 3.9 ± 0.4 N·m (34.52 ± 3.54 lb in).

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Illustration 7	g01179672

Install pipe (61) and pipe assembly (56). Tighten pipe (61) and pipe assembly (56) to a torque of 8 ± 3 N·m (70.8 ± 26.6 lb in).

Install O-ring seals (64), (63), (62), and (60) .

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Illustration 8	g01179671

Position adapter (58) and bolt (59) on pipe assembly (56). Tighten bolt (59) to a torque of 3.9 ± 0.4 N·m (34.52 ± 3.54 lb in). Install O-ring seal (57) .

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Illustration 9	g01179670

Install adapter (54) on housing (55) .

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Illustration 10	g01179669

Install O-ring seal (52) in flange (53) .

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Illustration 11	g01179668

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Illustration 12	g01179667

Position housing (49) and install screws (51). Apply Tooling (B) to the threads of bolts (50). Install bolts (50). Tighten bolts (50) to a torque of 15 ± 3 N·m (11 ± 2 lb ft).

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Illustration 13	g01179666

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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 adapter (42), poppet (43), retainer (44), spring (45), retainer (46), and nut (48) on bolt (41). Tighten nut (48) until you reach a dimension of 73.5 mm (2.90 inch) from the face of adapter (41) to the face of retainer (46). Install nut (47). Tighten nut (47) to a torque of 4 ± 1 N·m (35.4 ± 8.9 lb in).

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Illustration 14	g01179665

Apply Tooling (B) to the threads of valve assembly (39) and setscrew (38). Install valve assembly (39) in housing (40). Tighten valve assembly (39) to a torque of 5 ± 2 N·m (44.3 ± 17.7 lb in). Tighten setscrew (38) to a torque of 2 ± 0.4 N·m (17.70 ± 3.54 lb in). Install O-ring seal (37) .

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Illustration 15	g01179664

Install valve assembly (36). Apply Tooling (B) to the threads of bolts (35) and bolts (34). Install bolt (35). Tighten bolt (35) to a torque of 8 ± 3 N·m (70.8 ± 26.6 lb in). Repeat for the opposite side. Install bolt (34). Tighten bolt (34) to a torque of 6 ± 1 N·m (53.1 ± 8.9 lb in). Repeat for the opposite side.

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Illustration 16	g01179663

Install O-ring seal (33) .

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Illustration 17	g01179662

Install filter assembly (32) and bolts (31). Install O-ring seal (30) and filter (29) .

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Illustration 18	g01179661

Install O-ring seal (28) on cover (27) .

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Illustration 19	g01179660

Install cover (27) and retaining ring (26) .

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Illustration 20	g01179659

Install O-ring seal (25) in screen (20) .

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Illustration 21	g01179658

Install nut (22) and guide (23) on rod. Tighten nut (22) to a torque of 29 ± 5 N·m (21 ± 4 lb ft). Install nut (21) and screen (20) on rod (24). Tighten nut (21) to a torque of 18 ± 2 N·m (13 ± 1 lb ft).

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Illustration 22	g01179693

Install screen assembly (19) and O-ring seal (18). Install housing (17) and bolts (16). Tighten bolts (16) to a torque of 30 ± 5 N·m (22 ± 4 lb ft).

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Illustration 23	g01179657

Install cover (14) and bolts (13). Connect hose (15) .

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Illustration 24	g01179656

Install O-ring seal (11). Install switch assembly (12). Tighten switch assembly (12) to a torque of 72 ± 8 N·m (53 ± 6 lb ft).

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Illustration 25	g01179655

Install tube (9) to flange (10) .

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Illustration 26	g01179653

Install O-ring seal (8) .

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Illustration 27	g01179652

Position flange assembly (7) and bolts (6). Tighten bolts (6) to a torque of 50 ± 10 N·m (37 ± 7 lb ft). Install switch assembly (5). Tighten switch assembly (5) to a torque of 120 ± 29 N·m (89 ± 21 lb ft).

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Illustration 28	g01179769

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Illustration 29	g01179651

Attach Tooling (A) and a suitable lifting device to the tank assembly. Raise the tank assembly. Position adapter (4) and install bolts (3). Position flange (2), and install bolts (1) onto the bottom of the tank assembly.