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 TM 9-252-270-34
INSTALL
CAUTION
WARNING
Do not bore tapped hole deeper than instal-
Compressed air can injure
lation depth shown in insert replacement task.
you and others. Do not aim air
Damage to equipment can occur.
at soldiers. Do not use more
6.
pressure than 30 psi (207 kPa).
BORE OUT TAPPED HOLE (1).
Always wear goggles.
a. Using portable electric drill, indicator
caliper, and step drill (2) for over-
7. CLEAN BORED HOLE (1).
size inserts, bore tapped hole (1)
to counterbore depth (3). See task for
a. Using compressed air, blow out metal
proper step drill and counterbore depth.
chips.
WARNING
1
Compressed air can injure
you and others. Do not aim air
at soldiers. Do not use more
pressure than 30 psi (207 kPa).
Always wear goggles.
8. TAP BORED HOLE (1) IN HOUSING (4).
a. Coat thread cutting tap (5) for over-
size insert with transmission oil. See
9. CLEAN NEWLY TAPPED HOLE
(1) IN
task for proper thread cutting tap.
HOUSING (4).
b. Using tap wrench and tap (5), cut
a. Using compressed air, blow out metal
threads until tap bottoms.
chips.
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