Section Ill. OPERATORS MAINTENANCE PROCEDURES

TM 3-1040-279-12&P

3-3 REPLACING ENGINE HEAD.

a. Removal.

WARNING

Cold air entering a hot engine chamber may

cause fire flashback and injury to personnel.

Purge hot gases from engine before removing

engine head from a hot generator. Immedi-

ately install spare engine head.

Engine and engine head may become very

hot during operation. Do not touch engine

or engine head with bare hand. Wear

Loosen but do not remove clamp nut (1).

Open clamp (2) by lifting catch (3).

Remove clamp (2) from nozzle assembly (4).

Remove nozzle assembly (4) from engine head assembly (5).

Remove engine head assembly (5) from pulse jet engine (6) by turning engine head assembly

(5) counterclockwise using engine head wrench (7).

3-8

Change 3