TM 9-1556
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ORDNANCE MAINTENANCE-OBSERVATION TELESCOPES M48 AND M49
Figure 12-Observation Telescope M48-Prism Shelf Assembly
C80856 Disassembled
Figure 13-Observation Telescope M48-Objective Assembly
Disassembled
(1) Place the focusing sleeve in position so the crimped edge is
next to the shoulder of the prism housing. Screw the focusing tube
into position. Replace the ball spring A204665 on the tube. Place
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