OIL PUMP MAINTENANCE - continued - TM-9-2320-361-24-10460

TM 9-2320-361-24-1

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OIL PUMP MAINTENANCE (Contd)

WARNING

Accidental or intentional introduction of liquid contaminants

into the environment is a violation of state, federal, and military

regulations. Refer to Army POL (WP 0001 00) for information

concerning storage, use, and disposal of these liquids. Failure to

do so may result in damage to environment and health of

personnel.

NOTE

Use a drain pan to capture any draining oil. Dispose of fluids in

accordance with local policy and ordinances. Ensure all spills

are cleaned up.

REMOVAL

1. Remove safety wire (8) from two screws (9). Discard safety wire (8).

2. Remove two screws (9), outlet tube (7), and gasket (6) from engine block (2) and flange (12).

Discard gasket (6).

3. Remove two screws (10), lockwashers (11), flange (12), and O-ring (13) from oil pump (14). Discard

lockwashers (11) and O-ring (13).

4. Remove nut (18), lockwasher (17), and screw (22) from pickup tube clamp (21) and brace (16).

Discard lockwasher (17).

5. Remove two screws (24), lockwashers (25), pickup tube (23), and gasket (26) from oil pump (14).

Discard lockwashers (25) and gasket (26).

6. Remove two screws (30) and lockwashers (29) from scavenger tube (28) and engine block (2).

Discard lockwashers (29).

7. Remove two screws (34), lockwashers (35), scavenger tube (28), and gasket (27) from oil pump (14).

Discard lockwashers (35) and gasket (27).

8. Remove two screws (20), lockwashers (19), and brace (16) from oil pump (14). Discard

lockwashers (19).

9. Remove three lockscrews (15) and oil pump (14) from two bearing caps (1). Discard lockscrews (15).

10. Remove cotter pin (5), nut (4), and gear (3) from pump (14). Discard cotter pin (5).

11. Remove gear (3) from pump (14) with mechanical puller.

12. Remove two nuts (31), lockwashers (32), and screws (33) from scavenger tube (28). Discard

lockwashers (32).

INSPECTION

1. Inspect gear (3) for damaged teeth or scored bearing surfaces. Remove minor burrs with fine mill

file. If gear (3) is damaged beyond repair, replace.

2. Inspect all tubes (7), (23), and (28) for dents, cracks, bent flanges, flattened areas, and cracked,

torn, or loose screen. If tubes (7), (23), and (28), are damaged, replace.

INSTALLATION

1. Install gear (3) on oil pump (14) with nut (4).

2. Prime oil pump (14) with oil.

3. Install oil pump (14) on two bearing caps (1) with three new lockscrews (15). Tighten

lockscrews (15) 5358 lb-ft (7279 Nm).

4. Tighten nut (4) 4446 lb-ft (6062 Nm) and install new cotter pin (5).

5. Install new gasket (27) and scavenger tube (28) on oil pump (14) with two new lockwashers (35)

and screws (34). Tighten screws (34) 75100 lb-in (811 Nm).

6. Install scavenger tube (28) on engine block (2) with two new lockwashers (29) and screws (30).

Tighten screws (30) 150175 lb-in (1720 Nm).

7. Install two screws (33) on scavenger tube (28) with two new lockwashers (32) and nuts (31).

Tighten nuts (31) 75100 lb-in (811 Nm).

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