TM 9-2330-251-14&P
4-41. DRAWBAR COUPLER MAINTENANCE (M416).
This Task Covers:
a.
Disassembly
c.
Assembly
b.
Cleaning and Inspection
Initial Setup:
Equipment Conditions:
Materials/Parts:
One cotter pin
Tools/Test Equipment:
Six locknuts
General mechanic's tool kit
Feeler gage
Remove plug (10) from Iockpin (11).
1.
2.
Bend Iockpin (11) until straight. Remove Iockpin and spring (1 2).
Remove locknut (20) and screw (13) securing drawbar coupler bracket (19) to drawbar bracket (2).
3.
Remove drawbar coupler bracket. Discard locknut.
4.
Remove cotter pin (7) and slotted nut (8) securing drawbar coupler (1) to drawbar bracket (2). Remove
keywasher (6), spring (5), flatwasher (4), and drawbar coupler from drawbar bracket. Discard cotter pin,
Remove 2 lubrication fittings (3) from drawbar bracket (2).
5.
Remove locknut (18) and screw (16) securing 2 safety chains (17) to drawbar bracket (2) and channels
6.
(14). Remove safety chains. Discard locknut.
7.
Remove 4 locknuts (9) and screws (15) securing drawbar bracket (2) to channels (14). Remove drawbar
bracket. Discard locknuts.
WARNING
Dry cleaning solvent P-D-680 is toxic and flammable. Always wear protective goggles
and gloves, and use only in a well-ventilated area. Avoid contact with skin, eyes, and
clothes, and DO NOT breathe vapors. DO NOT use near open frame or excessive
heat. The solvent's flash point is 100F-130F (38C-59C). if you become dizzy
while using cleaning solvent, immediately get fresh air and medical help, if solvent
contacts eyes, immediately wash your eyes and get medical aid.
1.
Clean all removed parts with dry cleaning solvent and dry thoroughly.
Inspect all parts for cracks, distortion, damaged threads, excessive corrosion, or other damage.
2.
Replace all damaged parts.
3.
4-74