M977 and M985 Operating Procedures
2-18. CONNECT/DISCONNECT TRAILER (M977, M985).
M977 and M985 cargo vehicles pull M105, M332, and
M989 trailers using pintle hook. For more information
on trailer hook-up and towing procedures, refer to the
M105 Trailer -TM 9-2330-213-14
M332 Trailer - TM 9-2330-231-14
M989 Trailer - TM 9-2330-368-14&P
Park vehicle (para 2-11o).
Shut off engine (para 2-11p).
The M1977-CBT uses a self-guided coupler.
M1977-CBT pulls the M1076 trailer.
Do steps (3) through (9) for all models except
Do steps (9.1) through (9.7) for M1977-CBT only.
Remove cotter pin (1).
Pull latch (2) away from vehicle and hold.
Lift top part of pintle hook (3) and let go of latch (2); hook will be