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 702 of 828

TM 9–2350–311–20–2

18–34

Change 2

18–6 M15 ELEVATION QUADRANT — CONTINUED

d.

Assembly — CONTINUED

NOTE

Nitrogen charge was released when valve core and exit port machine screw were removed.

8

Purge (TM 750–116).

e.

Installation

NOTE

For ease of installation, cant M15 quadrant by rotating knob to gain access to mounting holes.

1

Aline M15 quadrant (4) with locating keys (5) and push into position.

2

Install four new lockwashers (3) and four cap screws (2).

3

Connect electrical connector (1).

5

1

2

3

4