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TM 5-2420-222-34
16-2
HYDRAULIC EARTH DRILL BORING HEAD MOTOR REPAIR (Con’t).
11.
Remove collar (12) from rear housing (14).
12.
Tap shaft (13) assembly out of rear housing (14).
CAUTION
Perform step 13 only if roller bearings are damaged. Removal may damage parts.
13.
Using mechanical gear and bearing puller, remove two roller bearings (19 and 20) from rear housing (14).
14.
Remove spacer (21) from rear housing (14).
15.
Remove two check valves (15) from rear housing (14). Remove rear housing from vise.
CAUTION
Perform steps 16 and 17 only if shaft bearings
are damaged. Removal may damage parts.
16.
Remove retaining ring (22) and spacer (23) from
shaft (13).
17.
Using mechanical gear and bearing puller, re-
move two bearing races (24), cones (25), and
spacer (26) from shaft (13).
16-8
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