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 TM 5-1940-277-20
TM 1940-20/2
3-113. ENGINE HOUR METER REPLACEMENT INSTRUCTIONS MK1 AND MK2 W/SABRE
REMOVE:
1.
Remove tachometer sending unit assembly (refer to paragraph 3-103).
1.
Open and secure battery hatch (refer to paragraph 3-154).
2.
Disconnect batteries (refer to paragraph 3-89).
3.
Disconnect quick-disconnect connectors (1) from base of engine hour meter (2).
4.
Unscrew knurled nut (3) securing brace (4) to engine hour meter.
5.
Remove engine hour meter from bracket (5).
INSTALL:
1.
Place new engine hour meter (2) in bracket (5).
2.
Replace brace (4) and secure with knurled nut (3).
3.
Connect quick-disconnect connectors (1) on base of engine hour meter (2).
4.
Reconnect batteries (refer to paragraph 3-89).
5.
Close battery hatch.
Change 2
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