TM-9-2350-311-20-2

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS

DECEMBER 1993

TM-9-2350-311-20-2 - Page 349 of 828

TM 9–2350–311–20–2

Change 2

6–33

d.

Installation

1

Install mounting brackets (9 and 10), four flat washers (13), and four cap screws (12).

2

If necessary for replacement, install instruction plate (11) on secondary accumulator (4) (para 2–7).

3

Position secondary accumulator (4) in accumulator brackets (9 and 10).

4

Secure secondary accumulator (4) to accumulator brackets (9 and 10) with two retaining straps (8), four hex

nuts (7), four new lockwashers (6), four flat washers (5.1), and four cap screws (5). Torque screws to 33-37

lb-ft (45-50 N

.

m).

5

Install mechanical guard (4.2) and two machine screws (4.1) on secondary accumulator (4).

6

Install new preformed packing (3), reducer (2), and hose connector (1) to secondary accumulator (4).

8

9

6

7

4

10

3

2

1

5

4.2

4.1

13

12

11

5.1