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 310 of 828

TM 9–2350–311–20–2

5–52

Change 2

5–19 REPLENISHER ACCUMULATOR ASSEMBLY — CONTINUED

c.

Installation — Continued

NOTE

If not precharged before installation proceed with step 8.

8

Inject enough hydraulic fluid into replenisher accumulator (23) through check valve (13) to provide fluid

cushion. (Capacity is 2.5 gallons (9.46 l)).

9

Precharge replenisher accumulator (para 19–1).

NOTE

If cap MS20813–1 is present on gas valve, retain for valve cap 9399173.

10

Install valve cap (5).

WARNING

Weight of replenisher accumulator is 65 pounds (30 kg). A second person must support replenisher

accumulator inside cab when installing to prevent injury to personnel.

NOTE

Inside hex nuts and flat washers on U-bolts must not be in contact with cab wall until outside self-

locking nuts have been torqued.

11

Install four inside nuts (26) and four flat washers (25). Tighten four inside nuts.

12

Secure accumulator (23) and two U-bolts (22) to cab wall with four flat washers (21) and four new self-lock-

ing nuts (20) on outside. Torque to 10–15 lb–ft (13–20 N

.

m).

13

Connect hydraulic tube (3) at buffer assembly (4).

14

Close left-hand plug (1) on buffer coupling block (2).

15

Charge replenisher system with hydraulic fluid (TM 9–2350–311–10).

d.

Service

Service replenisher accumulator (23) (para 19–1).