TM 9-2330-235-14&P
2-8.
COUPLING TRAILER TO TOWING VEHICLE (Con't).
WARNING
DO NOT raise rear leveling jacks on the M390C trailer until after trailer is coupled to towing
vehicle. If rear leveling jacks are raised before coupling Is complete, weight distribution could
cause trailer to tip, causing injury to personnel and damage to equipment.
a.
Raise leveling jacks and stow for traveling. If coupling an M390C, DO NOT raise rear leveling jacks.
b.
Couple trailer to towing vehicle.
(1)
M514.
(a) Position trailer drawbar coupler in towing vehicle pintle.
(b) Close and secure pintle latch.
(c)
Cross safety chains under drawbar and hook to towing vehicle.
(2)
M390C.
(a) Position trailer drawbar coupler in towing vehicle pintle.
(b) Use handcrank to raise retractable support assembly wheels off ground until weight of trailer is
supported by towing vehicle pintle.
(c)
Close and secure pintle latch.
(d) Cross safety chains under drawbar coupler and hook to towing vehicle.
(e) Raise rear leveling jacks and stow for traveling.
1)
M514.
(a) Pull out spring-loaded lockpin in
upper end of retractable support
assembly (3).
(b) Raise
retractable
support
assembly (3) until lockpin enter
upper locking hole.
(c) Install gravity pin (2) through
holes in retractable support
assembly (3) and frame clevis
(1).
TA704303
2-7
