TM-9-1240-401-34-P
TELESCOPE MOUNT M146: M118A2 AND M118A3; TELESCOPE MOUNT M145: M145A1; PANORAMIC TELESCOPE: M117 AND M117A2; FIRE CONTROL QUADRANT: M15; PERISCOPE: M42
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
JULY 1993
TM-9-1240-401-34-P - Page 92 of 590
TM 9-1240-401-34&P
3-34
3-22. EYEPIECE AND ERECTOR LENS SUBASSEMBLY MAINTENANCE INSTRUCTIONS
This task covers:
a. Disassembly b. Repair c. Assembly
Tools
Lockwashers (6) (Item 68, appx E)
Preformed packing (Item 24, appx E)
Drill bit no. 15 (0.180) (Item 13, appx F)
Preformed packing (Item 37, appx E)
Drill, electric 1/2” (Item 12, appx F)
Preformed packing (Item 40, appx E)
Shim (Item 53, appx E)
Tool Kit, Electronic System, Repair, Field Mainte-
nance (SC5180-95-CL-B29)
TM 9-254
Tubular spanner wrench, 2-9/16 and 2-37/64
inch (Item 34, appx F)
M118A2/M118A3 elbow telescope removed from
howitzer (TM 9-2350-311-10)
Cotter pins (2) (Item 44, appx E)
Grease (Item 6, appx B)
Eyepiece and erector lens subassembly removed
Grease (Item 7, appx B)
from reticle cage and cant corrector subassembly
Lockwashers (6) (Item 64, appx E)
(ref. para 3-21)
a. Disassembly
1 Remove two setscrews(1)
2 Using 2-9/16 and 2-37/64 inch tubular spanner
wrench, remove cell assembly (2) from eyepiece
arm (3).
3 Remove preformed packing (4) from cell assembly
(2). Discard preformed packing.
4 Remove six machine screws (5), six Iockwashers
(6), and prism cover (7). Discard Iockwashers.
5 Remove three setscrews (8) from prism cover (7)
only if necessary for replacement.
6 Remove setscrews (9 and 10).
Back to Top
