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 807 of 828
TM 9–2350–311–20–2
Change 2
J–7
J–1
RECOIL EXERCISER INSTRUCTIONS – CONTINUED
b.
Operation. – Continued
WARNING
Be sure hands, arms, and loose clothing are clear of cannon tube and breech prior to removing the
wooden block to prevent injury to personnel.
8
If using electric hydraulic pump (22), place manual valve (27) in upright position. Using the electric hydraulic
pump, begin pumping to move the cannon tube off of the wooden block. Remove wooden block.
9
If using electric hydraulic pump (22), turn manual valve (27). Release hydraulic pressure at the electric hy-
draulic pump allowing cannon tube (2) to return to battery.
10
Repeat steps 3, 4, 5, and 9.
11
Repeat steps 3, 4, and 5.
WARNING
The cannon tube must be blocked while lubricating to prevent cannon tube from returning to battery
resulting in injury to personnel.
12
Block cannon (2) while out of battery with a 4”x4”x12” wooden block (29). Hold wooden block in position and
slowly release pump pressure until wooden block stops cannon tube movement. Coat exposed buffer piston
rod (28) surface lightly with hydraulic fluid (item 21, Appx D).
WARNING
Be sure hands, arms, and loose clothing are clear of cannon tube and breech prior to removing the
wooden block to prevent injury to personnel.
13
If using electric hydraulic pump (22), place manual valve (27) in upright position. Using the electric hydraulic
pump, begin pumping to move the cannon tube off of the wooden block. Remove wooden block.
14
If using electric hydraulic pump (22), turn manual valve (27). Release hydraulic pressure at electric hydraulic
pump allowing cannon tube (2) to return to battery.
Back to Top
