TM 9-1240-401-34&P
2-11. M146 TELESCOPE MOUNT MAINTENANCE INSTRUCTIONS - continued
a. Disassembly
1
Remove three cap screws (1) and three lock-
washers (2). Discard Iockwashers.
2
Lift retaining ring (3), headed grooved pin (4),
spring (5), and yoke pin (6) as a unit from M146
telescope mount.
Headed grooved pin (4) is under spring ten-
sion.
Disengage retaining ring (3) and remove headed
3
grooved pin (4) and spring (5) from yoke pin (6).
Remove three cap screws (7) and three lock-
4
washers (8). Discard Iockwashers.
Remove yoke pin (9) and yoke (10) from bracket
5
(11).
6
Remove chain assembly (12) by removing two ma-
chine screws (13) and two Iockwashers (14). Dis-
card Iockwashers.
Remove setscrew (15) and insert (16).
7
Unscrew and remove knob (17), tapered pin (18),
8
shaft collar (19), and tapered pin (20) as a unit
from elevation slide (21).
Scribe a matching mark on shaft collar (19) and
9
tapered pin (20).
10
Aline access holes in knob (17) with tapered pin
(18).
11
Support knob (17) with a V-block and drive tapered
pin (18) from tapered pin (20) and shaft collar (19).
2-8