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TM 5-2420-222-34
16-5.
HYDRAULIC IMPACTOR REPAIR (Con’t).
WARNING
Internal spring Is under very
high tension. Use extreme
care
when
disassembling
upper housing. Failure to
follow this warning may
result In Injury or death to
personnel.
5.
Check that two guide blocks (7) are in position in guide
ring (4) and two screws (8) are not damaged. If either
screw Is damaged, carefully remove damaged screw
and insert a punch through guide ring to engage slot in
striker (6).
6.
Remove six screws (5) and carefully remove striker (6).
7.
Remove preformed packing (9) from striker (6).
Discard preformed packing.
8.
Position spring compression tool (10) over upper
housing (3) so that two bushings (11) are visible in
cutouts (12) of spring compression tool.
9.
Position lower housing (1) on spring compression tool
(10).
TA701672
16-20
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