TM 5-4310-378-14
b. Replacement. Replace defective
unloader valves as follows:
(1) Removal
(a)
Remove auto-unloader
c y l i n d e r (l), auto-unloader
piston (2), packing (3), and
s p r i n g (4). Discard packing.
(2)
Installation
( a ) Install new packing (3) on
piston (2).
( b ) Insert spring (4) and piston
(2) with packing (3) into
c y l i n d e r (l).
( c ) Install cylinder (1) into
cylinder head.
3 - 2 1 . ENGINE ASSEMBLY
This task covers:
a. Inspection
b. Replacement
Tools:
l / 2 - i n . wrench and l/2-in. socket with handle
B r u s h , Cleaning (Appendix E, item 1)
Materials:
Rag, Wiping (Appendix E, item 3)
S o l v e n t , Dry cleaning (Appendix E, item 2)
E n g i n e Assembly
Ignition switch pushed in (Table 2-1, 8).
Equipment Condition:
F u e l tank drained (Table 2-1, 7).
V - b e l t s removed (para 3-12).
D r i v i n g pulley and key removed (para 3-13).
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