TM-9-2350-311-20-2

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS

DECEMBER 1993

TM-9-2350-311-20-2 - Page 684 of 828

TM 9–2350–311–20–2

18–16

Change 2

18–3 M145/M145A1 TELESCOPE MOUNT — CONTINUED

n.

Installation of M145/M145A1 Telescope Mount

1

Two personnel raise M145/M145A1 telescope mount (6). One mechanic holds M145/M145A1 telescope

mount in keyway of mounting plate (not shown). The second mechanic secures M145/M145A1 telescope

mount to plate by attaching webbing strap (8) to M145/M145A1 telescope mount.

NOTE

•

Two longer screws go in top holes.

•

Tighten four cap screws to 80–90 lb-ft (108–122 N

.

m). After installation, M145/M145A1 tele-

scope mount must be synchronized (para 18–4) .

•

Leave a 1 inch (2.54 cm) gap between linkage assembly and M145/M145A1 telescope mount. If

gap is less than 1 inch (2.54 cm), loosen four cap screws on linkage assembly plates. Move

linkage assembly in or out until gap measures 1 inch (2.54 cm). Tighten four screws and re-

check measurements.

2

Install two cap screws (9), two cap screws (9.1), and four new lockwashers (10) on M145/M145A1 telescope

mount (6) and remove webbing strap (8). Torque cap screws 80 to 90 ft-lb (108 to 122 N

.

m).

3

Connect electrical connector (7).

47

7

6

9

10

9.1

10

8