TM-9-2350-311-20-1

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS

AUGUST 1994

TM-9-2350-311-20-1 - Page 517 of 1275

TM 9-2350-311 -20-1

4-5 POWERPLANT — CONTINUED

f. Installation — Continued

40

41

42

NOTE

Position of rubber-coated clamp is same for both M109A2 and M109A3 Howitzers.

Connect engine-to-lower fuel tank return hose (47) at quick disconnect assembly (48).

Install washer (50) and screw (49) at rubber-coated clamp (51).

Protective fan screens must be installed prior to doing maintenance in engine

compartment when engine is running or when engine is in ground hop mode. Contact

with rotating fan can cause injury.

Install two protective fan screens on radiator fans (153) with thumbscrews and nuts.

4-56

WARNING