TM-9-2350-311-34-2
CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS HOWITZER, MEDIUM, SELF-PROPELLED, 155MM
TECHNICAL MANUAL; DIRECT AND GENERAL SUPPORT MAINTENANCE MANUAL
SEPTEMBER 1994
TM-9-2350-311-34-2 - Page 216 of 552
TM 9-2350-311-34-2
5-11 RECUPERATOR ASSEMBLY — CONTINUED
e. Installation
Use extreme care when installing recuperator cylinder and components to prevent contamination.
1
Clean the two large diameters of the recuperator cylinder (2) removing all paint, nicks, scratches, and
gouges. Coat two diameters with grease.
2
Remove all paint, nicks, scratches, and gouges from the mount (27) at the bearing surface for the
recuperator cylinder (2).
3
Install machine key (28) in keyway.
Use care while installing the recuperator cylinder. Recuperator cylinder weighs approximately 177
pounds (80 kg) and can cause serious injury to personnel or damage to equipment if dropped.
4
Using webbing strap inside cab to support recuperator cylinder (2), position milled flat on left side of
recuperator cylinder and slide forward until bearing surfaces meet.
NOTE
Do not press recuperator cylinder all the way into mount. Stop approximately 1/8 inch (3.18 mm)
short of retainer groove.
5
Position hydraulic jack (port-a-power) (26) between blocks of wood against breech ring of cannon assembly
and rear face of recuperator cylinder (2). Press recuperator cylinder to approximately 1/8 inch (3.18 mm)
short of recuperator clamp (25) groove.
6
Position recuperator clamp (25) in groove and aline screw holes. Press recuperator cylinder (2) until
recuperator clamp rings contact mount.
7
Remove hydraulic jack (port-a-power) (26) and install six cap screws (24) and new lockwire (23).
8
Swing cylinder up until it latches and return rammer assembly (22) to stowed position (TM 9-2350-31 l-l 0).
Do not touch shouldered shaft with bare hands. Oils on skin will etch polished surface of shouldered
shaft, allowing rust to form.
9
Wrap shouldered shaft (12) with clean rag and gently insert into recuperator cylinder (2) from the outside. Slowly
push forward until inside end extends from recuperator cylinder slightly. Remove rag from shouldered shaft.
10
Slide cylinder head group (20) onto inside end of shouldered shaft (12) and gently tap cylinder head group
into end of recuperator cylinder (2).
5-72 Change 2
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