HOW TO USE THIS MANUAL (Continued)

TM 55-2840-254-23

HOW TO USE THIS MANUAL (Continued)

Use of Clock Positions. Many procedures contain references to or views of clock positions. Com-

paring engine to face of clock is an easy way to locate specific engine areas. To help find clock positions

on the engine, remember the following:

(1) Clock position is always determined from rear of engine.

(2) Once a clock position is determined from rear of engine, visualize that clock position along

entire length of engine.

(3) Hoist adapter (1) and starter drive assembly (2) are mounted at the 12-o'clock position.

(4) Two fuel drain valves (3) are mounted at the 6-o'clock position.

(5) Some procedures show engine mounted vertical in maintenance stand. This does not change

the method for finding clock positions on the engine.