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 720 of 828
TM 9–2350–311–20–2
19–12
Change 2
19–3 ACCUMULATOR ASSEMBLY, MANUAL PUMP
This task covers:
a.
Service (Method One)
b.
Service (Method Two)
INITIAL SETUP
Tools
Artillery and turret mechanic’s tool kit
(SC 5180–95–CL–A12)
Drain pan (item 8, Appx H)
Nitrogen charging kit (item 3, Appx H)
Materials/Parts
Dry nitrogen (item 22, Appx D)
Soap (item 33, Appx D)
a.
Service (Method One)
1
If accumulator is installed in vehicle, relieve pressure in hydraulic system (para 6–3).
2
Disconnect the two lower hydraulic tubes at the elevating mechanism locking valve. Catch the hydraulic fluid
in a drain pan.
WARNING
Make sure charging cylinder contains dry nitrogen. Dry nitrogen tanks are marked with one or two
black bands. Certain other gases can cause accumulator to explode, resulting in possible injury.
3
Attach regulator (1) to nitrogen cylinder (2) as shown and tighten.
1
2
Back to Top
