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 376 of 828
TM 9–2350–311–20–2
6–54
Change 2
6–22 LINES AND FITTINGS FROM POWER PACK TO PRESSURE SWITCH AND GAGES
This task covers:
a.
Removal
b.
Installation
INITIAL SETUP
Tools
Artillery and turret mechanic’s tool kit
(SC 5180–95–CL–A12)
Materials/Parts
Caps and plugs (item 7, Appx D)
Lockwashers (4) (item 76, Appx G)
Plastic bag (item 4, Appx D)
Preformed packings (3) (item 43, Appx G)
M109A4/M109A5
Preformed packings (5) (item 43, Appx G)
M109A2/M109A3
Preformed packings (4) (item 46, Appx G)
Preformed packing (item 47, Appx G)
Tag, marking (item 36, Appx D)
Equipment Condition
Discharge hydraulic pressure (para 6–3)
a.
Removal
WARNING
•
Do not torque hydraulic fittings or perform removal procedures when hydraulic system is pres-
surized. Discharging hydraulic system pressure before performing any maintenance proce-
dures will avoid serious injury to personnel.
•
Eye protection will be worn when performing maintenance procedures on all hydraulic compo-
nents to avoid injury to personnel.
CAUTION
•
All hydraulic lines and ports must be capped to prevent contaminants from entering the hydrau-
lic system and causing internal damage to hydraulic components.
•
All serviceable components must be placed in plastic bags to prevent contamination of hydrau-
lic system during installation.
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