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TM 5-4320-308-13
4-17.
INSPECT/REPLACE CYLINDER HEAD AND VALVE ASSEMBLY (Continued)
4
Remove nut (1) from threaded pin (2).
5
Use needlenose pliers to remove pin (3) with 10 spring
plates (4), and preformed packing (5) attached.
6
Remove and discard preformed packing (5).
7
Knock out pin (6) and remove decompression shaft (7)
and pinion (8) from cylinder head (9).
CLEANING/INSPECTION:
WARNING
Death or serious injury could occur if fuel is not handled carefully. Use in a well-ventilated area
away from open flame, arcing equipment, ignition sources, heaters, or excessive heat. Always
store fuel in proper, marked containers. DO NOT SMOKE.
Death or serious injury could occur if compressed air is directed against the skin. Do not use
compressed air for cleaning or drying unless the pressure is/has been reduced to 30 psi (2. 06 bar)
or less. When working with compressed air always use chip guards, eye protection, and other
personal protective equipment.
1
Clean all parts with a clean cloth dampened with diesel fuel oil. Use wire brush where necessary. Dry with
compressed air.
2
Inspect all parts for cracks, rust, corrosion, and excessive heat damage.
3
Inspect for accumulated carbon around injector seat in cylinder head.
4
Replace cylinder head if it is damaged.
4-41
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