TM-9-2350-311-34-2

CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS HOWITZER, MEDIUM, SELF-PROPELLED, 155MM

TECHNICAL MANUAL; DIRECT AND GENERAL SUPPORT MAINTENANCE MANUAL

SEPTEMBER 1994

TM-9-2350-311-34-2 - Page 340 of 552

TM 9-2350-311-34-2

6-16 AXIAL PUMP

This task covers:

a. Disassembly

b. Inspection

c. Assembly

INITIAL SETUP

Tools

Hydraulic axial parts kit (item 149, Appx E)

Artillery and turret mechanic’s tool kit

(Sc 5180-95-CL-A12)

References

TM 9-214

Materials/Parts

Equipment Condition

Key washer (item 154, Appx E)

Hydraulic pumping unit removed (para 6-14)

Lockwashers (4) (item 82, Appx E)

Hand pump crank removed (para 6-17)

a. Disassembly

1

Remove three washer assembled screws (1) and cover (2) from access cover (3).

2

Disengage tab of key washer (4) from slot in round nut (5).

3

Remove round nut (5) and key washer (4). Discard key washer.

NOTE

Inner ball bearing and sleeve spacer may come out with cover retainer, pump shouldered shaft, and

ball bearing group.

4

Remove cover retainer, pump shouldered shaft, and ball bearing group (6) from hand pump housing (7).

5

Remove four machine bolts (8), four lockwashers (9), and access cover (3). Discard Iockwashers.

6

Remove eight pump retainers (10).

7

Remove and discard eight piston helical springs (11), eight piston spring guides (12), and eight piston helical

springs (13).

8

Remove eight pistons (14).

6-76