MWO-9-2350-314-20-9
MODIFICATION OF HOWITZER, MEDIUM, SELF-PROPELLED: 155MM, M109A6
MODIFICATION WORK ORDER
OCTOBER 1997
MWO-9-2350-314-20-9 - Page 4 of 10
MWO 9-2350-314-20-9
WARNING
The pulse accumulator is charged to 900 ± 50 psi. Use caution when relieving
pressure. Wear gloves and goggles to prevent personal injury.
(2) Remove two screws (1) and guard (2) from pulse accumulator (3).
(3) Remove valve cap (4) from charging valve (5), and slowly turn the charging
nut valve (6) counterclockwise to relieve nitrogen pressure in pulse accumulator (3). After the
pulse accumulator is discharged, thread the valve cap back on the charging valve.
(4) Loosen the screw and release the latch on each loop clamp (7).
(5) With hose (8) still connected, remove pulse accumulator (3) from loop clamps
(7). Support the pulse accumulator while mounting plate (9) and loop clamps (7) are replaced.
(6) Remove two screws (10), two lockwashers (11), two flat washers (12), and
mounting plate (9), with loop clamps (7) still attached, from the hydraulic compartment wall. Set
the two lock washers and mounting plate, with two loop clamps still attached, aside for disposition
per para 8.
4
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