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 614 of 1275

NOTE

,

Hoses must cover unpainted areas of tubes and fittings or be positioned evenly

between red bands on tubes and housings.

Before tightening hose clamps, engine must be warmed up and then run for a

minimum of 5 minutes (para 4-5).

1 Apply adhesive between hoses and mating tubes.

2 Install engine coolant lower tube (7).

3 Secure two clamps (5) on radiator outlet-to-engine coolant lower tube hose (6).

4 Connect aeration detector hose (4) and secure with clamp (3).

5 Secure two clamps (1) on engine coolant lower tube-to-engine coolant main hose (2).

6 Refill coolant system (TM 9-2350-311-10).

7 Install special equipment to run powerplant outside of vehicle (para 4-5).

8 Start engine and allow engine to run at least 5 minutes. Shut off engine (para 4-5).

9 Torque five clamps (1, 3, and 5) to 40-60 lb-in. (4.5-6.8 N-m).

NOTE

FOLLOW-ON MAINTENANCE:

Install powerplant (para 4-5)

7-9

TM9-2350-311-20-1