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 700 of 828

TM 9–2350–311–20–2

18–32

Change 2

18–6 M15 ELEVATION QUADRANT

This task covers:

a.

Inspection

b.

Removal

c.

Disassembly

d.

Assembly

e.

Installation

INITIAL SETUP

Tools

Artillery and turret mechanic’s tool kit

(SC 5180–95–CL–A12)

Materials/Parts

Lockwasher (item 58, Appx G)

Lockwashers (4) (item 83, Appx G)

Sealing compound (item 28, Appx D)

References

TM 9–2350–311–10

TM 750–116

Equipment Condition

M118A2/M118A3 elbow telescope removed

(TM 9–2350–311–10)

a.

Inspection

For inspection refer to TM 9–2350–311–10.

b.

Removal

1

Disconnect electrical connector (1).

WARNING

M15 elevation quadrant weighs 37 pounds (16.8 kg). Support M15 elevation quadrant to prevent

bodily injury or damage to equipment.

NOTE

For ease of removal, cant M15 quadrant by rotating knob to gain access to cap screws.

2

Remove four cap screws (2) and four lockwashers (3). Discard lockwashers.

3

Pull M15 quadrant (4) straight off to clear locating keys (5).

5

1

2

3

4