TM-9-1240-400-34-P
TELESCOPE; PANORAMIC: M115, ELBOW: M139, MOUNT: M138 AND M137
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1993
TM-9-1240-400-34-P - Page 94 of 344
TM 9-1240-400-34&P
TORQUE INSPECTION
1
Using torque adapter (8599917) and torque
wrench, check that running torque of deflection
knob (1) is 3.00 to 8.00 in.-lb (0.45 to 0.90 N-m)
in both directions.
2
If requirements in step 1 cannot be met, remove
deflection knob (1).
Refer to page 2-28.
3
Remove cap assembly (2) and associated
shims.
Refer to page 2-28.
4
Temporarily install deflection knob (1), torque
adapter, and torque wrench.
5
Adjust retainer (3) until required torque in step 1
is achieved.
6
Scribe a line on retainer (3) and housing (4).
Back out retainer (3) and apply small amount of
sealing compound (item 10, appx C) and turn in
retainer (3) to scribe marks.
7
Install cap assembly (2).
Refer to page 2-28.
8
Install deflection knob (1).
Refer to page 2-28.
9
Remove pin (5), gunner’s aid knob (6), shim(s)
(7), and seal (8).
10
Apply silicone compound (item 11, appx C) to
inside diameter of seal (8), and sealing
compound (item 10, appx C) to outside diameter
of seal (8).
Reinstall seal (8), shim(s) (7),
gunner’s aid knob (6), and pin (5).
2-77
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