TM 9-1240-400-34&P
Section V. GENERAL SUPPORT MAINTENANCE
There are no general support maintenance procedures for the M138 Telescope Mount.
Section VI. GENERAL SUPPORT FINAL INSPECTION PROCEDURES
4-10.
GENERAL.
a. This section describes and illustrates the final inspection procedures for the M138 telescope mount. A final
inspection will be performed prior to returning the M138 telescope mount to the using unit or to the supply system.
b. If the M138 telescope mount inspected fails to meet the required standards, ensure that the maintenance
authorized at the applicable level has been performed correctly.
4-11.
FINAL INSPECTION INSTRUCTIONS.
Assembly and alinement of V-block adapter assembly
This task covers:
a.
Setting up V-block adapter assembly
b.
Visual inspection
c.
Deflection locking torque
d.
Deflection adjusting range
e.
Elevation locking torque
f.
Elevation adjusting range
g.
Telescope locking clamp
h.
Instrument light
i.
INITIAL SETUP
Test Equipment
Torque adapter (figure 1, appx D)
Collimator telescope (5549108)
Torque adapter (figure 2, appx D)
Dial indicator (63052-48B)
Torque adapter (figure 3, appx D)
Height gage (585818)
Torque wrench (GGG-W-686)
Plate (7901769)
V-block (figure 11, appx D)
Surface plate (10539031-1)
Materials/Parts
Test target (figure 8, appx D)
Screw, 10-24 x 1/2 (3)
Tools and Special Tools
Screw, 10-24 x 3/8
Tool kit, electronic: system
Dowel pin, 1 in. (2)
maintenance (SC 5180-95-CL-B29)
References
Base (figure 11, appx D)
Bushing adapter (figure 5, appx D)
TM 9-254
Clamp (figure 11, appx D)
Fixture plate (figure 11, appx D)
4-20
