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 326 of 828

TM 9–2350–311–20–2

6–10

6–3

POWER PACK, HYDRAULIC (DRAINING, FILLING AND CHARGING) — CONTINUED

a.

Discharging Pressure — Continued

2

Set MASTER switch (5) and CAB POWER switch (6) to ON.

3

Turn gunner’s control handle (7) to right or left to discharge pressure.

4

Monitor pressure gage (4) until system pressure falls to 0 psi (0 kPa).

5

6

7

4