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 191 of 828

TM 9–2350–311–20–2

3–80

Change 2

f.

RAMMER HYDRAULIC SYSTEM — CONTINUED

(1)

RAMMER DOES NOT OPERATE.

— CONTINUED

1.

Replace blocking valve (para 7–2).

2.

Extend rammer and check alinement.

Is adjustment correct?

END OF TASK

D

Go to adjustment procedure

(para 7–2). If malfunction

persists, notify support main-

tenance.

yes

no

Return to normal operation.

CONTINUED FROM STEP C

ACTUATING VALVE

RAMMER

CYLINDER

HOSES, TUBES, AND FITTINGS

BLOCKING VALVE