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TM
9-1290-232-34&P
WORM SHAFT ASSEMBLY
TOOLS: 1/8", 1/4" flat tip screwdriver
0 . 0 5 0 " socket head screw key (Allen wrench or equivalent)
.070"
jeweler's
screwdriver
0 . 0 5 5 to 0.060" pin diameter adjustable face spanner wrench
G r e a s e (item 4, App A)
SUPPLIES:
Sealing compound (item 6, App A)
Lubricating
REFERENCES:
JPG
41C
for:
Using sealing compound
EQUIPMENT CONDITION: Elevation fire control quadrant on work bench
NOTE
Do
frames
1
and
2
only
for
M13B1
configuration.
Do
frames 3 and 4 only for M13A1, M13A1C and M13A3
configurations.
FRAME
1
Procedure
Step
Put ball seat (1) on worm shaft (2).
1.
Put small amount of grease on worm shaft (2) (JPG).
2.
3.
Screw worm shaft (2) clockwise into housing (3).
4.
Using jeweler's screwdriver, turn ball seat (1) until slot (4) is lined up with screw hole
(5).
5.
Put sealing compound on threads of setscrew (6) (JPG).
W h i l e installing setscrew (6), look into hole (7) of body
( 3 ) to make sure setscrew (6) goes into slot (4).
Using 1/8" flat tip screwdriver, install setscrew (6).
6.
7.
Using spanner wrench, install ball cap (8).
8.
Using jeweler's screwdriver, install setscrew (9).
GO
TO
FRAME
2
II-4-22

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