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 186 of 552

TM 9-2350-311-34-2

5-7 OPERATING CRANK ASSEMBLY - CONTINUED

b. Inspection

1

Inspect two headed shoulder pins (3) and replace if cracked or deformed.

2

Inspect two crank rollers (4) and replace if cracked or deformed. Measure inside diameter of crank rollers

and replace if greater than 0.878 inch (22.301 mm). Measure outside diameter of crank rollers and replace if

less than 1.245 inches (3.162 cm).

3

Inspect breech crank (2) and replace if there are visible cracks. Measure outside diameter of breech crank

and replace if less than 2.89 inches (7.34 cm). Measure inside diameter of crank headed shoulder roller pin

holes and replace breech crank if greater than 0.69 inch (17.53 mm).

c. Assembly

1

Place breech crank (2) on solid surface.

2 Install two crank rollers (4) and two headed shoulder pins (3).

3 Install two new spring pins (1) to secure two crank rollers (4).

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