Chapter 2. ENGINE SYSTEM GROUP MAINTENANCE

TM 9-2320-209-34-2-1

ENGINE SYSTEM GROUP MAINTENANCE

Section I. SCOPE

2-1. EQUIPMENT ITEMS COVERED. This chapter gives equipment maintenance

procedures for the engine assembly, crankcase, block and cylinder head, crankshaft,

flywheel, pistons and connecting rods, valves, camshaft and timing system, engine

lubricating system, and manifolds for which there are authorized corrective maintenance

tasks at the direct and general support maintenance levels.

2-2. EQUIPMENT ITEMS NOT COVERED, All equipment items for which corrective

maintenance is authorized at the direct and general support maintenance levels are

covered in this chapter.

Section II. ENGINE ASSEMBLY

2-3. ENGINE REMOVAL AND REPLACEMENT.

TOOLS: No special tools required

SUPPLIES: Tags

PERSONNEL: Two

EQUIPMENT CONDITION: Truck parked, engine off, handbrake set.

NOTE

This task is the same for all engines except as noted.

This task is shown for the LD 465-1.

a. Preliminary Procedures.

(1) Disconnect battery ground cable. Refer to TM 9-2320-209-20.

(2) Open hood and side panels. Refer to TM 9-2320-209-10.

(3) Remove air cleaner. Refer to TM 9-2320-209-20.

(4) Drain cooling system. Refer to TM 9-2320-209-20.

(5) Remove transmission-to-transfer propeller shaft. Refer to Propeller

Shaft and Universal Joint Removal and Replacement, TM 9-2320-209-20.

(6) If truck has front winch, remove front winch propeller shaft. Refer to

Propeller Shaft and Universal Joint Removal and Replacement, TM 9-2320-209-20.

(7) For truck M342A2, remove hoist pump propeller shaft. Refer to Propeller

Shaft and Universal Joint Removal and Replacement, TM 9-2320-209-20.

(8) Remove front and intermediate cab tunnels. Refer to TM 9-2320-209-20.