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TM 5-2420-222-34
16-1.
HYDRAULIC EARTH DRILL BORING HEAD MOTOR REPLACEMENT (Con’t).
7.
Match-mark motor (16) and housing (2) to ensure proper installation. (21).
8.
Remove four nuts (18), motor (16), and gasket (17) from housing (2), Discard gasket.
9.
Remove setscrew (19) and sprocket (8) from shaft
(21).
10.
Remove key (20) from shaft (21).
b.
INSTALLATION
1.
Install key (20) on shaft (21).
2.
Install sprocket (8) over key (20) on shaft (21).
3.
Install setscrew (19) in sprocket (8).
4.
Place new gasket (17) over four studs on housing (2).
5.
Aline match-marks and install motor (16) on studs in housing (2). Install four nuts (18) on studs to secure motor.
TA701657
16-3
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