TM-9-2350-311-10
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5
TECHNICAL MANUAL; OPERATOR’S MANUAL
NOVEMBER 1994
TM-9-2350-311-10 - Page 720 of 775
TM 9–2350–311–10
G–16
Change 3
G–3
LUBRICATION INSTRUCTIONS — CONTINUED
12. RECUPERATOR ASSEMBLY (C)
WARNING
Do not attempt to remove drain plug completely. Hydraulic fluid in recuperator assembly is under
high pressure and could cause injury.
CAUTION
•
If drain plug is loosened for draining hydraulic fluid, check for leaks after tightening cover.
•
To prevent damage to gasket or cover, loosen cap screws to stop pins before rotating cover.
•
Check M3 oil gun to be sure it contains hydraulic fluid and not grease to prevent damage to
equipment. Do not overfill.
Before firing and after firing 100 rounds, sustained fire, check pins (34). Pins must extend from 1/4 to 3/4 inch (6.4 to
19.05 mm). If pins extend beyond 3/4 inch (19.05 mm), remove valve cap (35) from pneumatic valve (36) and add hy-
draulic fluid, OHT (Table G–1) until pins extend 1/4 inch (6.4 mm). If pins extend less than 1/4 inch (6 4 mm), loosen
drain plug and drain hydraulic fluid, until pins extend 1/4 inch (6.4 mm).
13. RAMMER BLOCKING VALVE PLUNGER AND ROLLER (C)
Coat plunger and roller (37) lightly with GAA (item 17, Appx D) during operation. Do not paint.
34
35
36
37
35
36
34
INSIDE
OUTSIDE
Back to Top
