TM-9-2350-311-10

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

TECHNICAL MANUAL; OPERATOR’S MANUAL

NOVEMBER 1994

TM-9-2350-311-10 - Page 722 of 775

TM 9-2350-311-10

G-3

LUBRICATION INSTRUCTIONS - CONTINUED

14. CHECK BALLS AND METERING HOLES (C) (11578385) -CONTINUED

NOTE

Use rag to catch ten check balls when sliding valve ring forward.

d.

Slide valve ring (45) forward and remove 10 check bails (46).

e.

Thoroughly wet check balls (46), vent seats (47), and metering holes (48) with CLP (item 8, Appx D) using the bore

evacuator brush.

f.

Apply a light coat of GMD (item 19, Appx D) or GGP (item 18, Appx D) to check balls (46), valve ring (45), and

unpainted cannon tube (44) surface before assembling.

G-18 Change 2