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TM 5-2420-222-34
16-3
HYDRAULIC EARTH DRILL BORING HEAD REPAIR (Con’t).
c.
REPAIR
Restore damaged threads using screw threading set.
d.
ASSEMBLY
1.
Using remover and installer and arbor press, install new seal (24) in housing (7).
2.
Position same quantity of shims (23) as disassembled and spacer (22) In place on shaft (19).
3.
Using arbor press, Install shaft (19) in housing (7).
4.
Install cone (20) in cup (21). Pack cone with grease. Using arbor press, install cup and cone on shaft (19).
5.
Using arbor press, install pinion (18) on shaft (19).
6.
Using remover and installer and arbor press, install new seal (25) in housing (7).
7.
Install cone (15) in cup (14). Pack cone with grease. Using arbor press, install cup and cone on shaft (10).
8.
Using arbor press, install ring gear (16) on shaft (10).
9.
Install 12 bolts (17) in ring gear (16). Torque bolts to 40-45 lb.-ft. (54-61 N•m).
10.
Install lockwire (13) on bolts (17) (see paragraph 1-28).
11.
Install cone (12) in cup (11). Pack cone with grease. Using arbor press, install cup and cone on shaft (10).
TA701666
16-14
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