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 209 of 552

TM 9-2350-311-34-2

c. Inspection

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Inspect externally threaded ring (18). Replace if cracked, spanner slot shoulders are rounded, or if threads

are mutilated.

Inspect recuperator cylinder (2) for any indication of surface cracks or if bore is scratched, scored, or galled.

Replace if damaged.

Measure recuperator cylinder (2) inside diameter. Replace if greater than 3.877 inches (9.848 cm).

Inspect pneumatic valve (3). Replace if damaged in any way that could affect operation.

Inspect shouldered shaft (12) for nicks, scratches, cracks, or mutilation of threads. Replace if damaged.

Measure shouldered shaft (12) outside diameter. Replace if less than 1.6215 inches (4.119 cm).

NOTE

Inner and outer pistons are a matched set. If either component is defective, both must be replaced.

Inspect and measure inner piston (62) and outer piston (63). Replace if marked or damaged in any way to

affect operation. Replace if outside diameter is less than 3.869 inches (9.827 cm).

Inspect two shouldered shafts (64) for straightness, nicks, cracks, or burrs. Replace if damaged.

Measure two shouldered shafts (64). Replace if outside diameter is less than 0.499 inches (12.675 mm).

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