2-24. OPERATION OF BOLSTER TRUCKS AND TRAILERS
HIGH INTENSITY NOISE
Hearing protection is required for all personnel working in and
around this vehicle with the engine running.
a. General. M815 bolster trucks are equipped with a cab protector (1), midships winch
(2), bolster assembly (3), and fifth wheel assembly (6). M796 bolster trailer (4) has an
adjustable reach (5) with safety chains. Truck and trailer combination is designed to haul
utility poles, logs. or bridge sections. The trailer is carried on the truck when not in use.
More information for trailer operation is contained in TM 9-2330-287-14.
b. Unloading Bolster Trailer from Bolster Truck.
Two crewmembers are required for
virtually every operation involving
the truck bolster and trailer.
(1) Position bolster truck on level
grade. Apply parking brake (27) and stop
engine; refer to paragraph 2-16.
(2) Remove chain binder (10) at rear of
vehicle. Remove tiedown chain (9) from
lifting shackles (7) of bolster trailer (4) and
towing shackles (13) of bolster truck.
(3) Grasp ring (16) of L-bolt (17) and turn handle (15) counterclockwise to loosen.
After loosening, turn L-bolt (17) until it drops down through retaining slots in ramps.
Repeat same procedure on opposite end.
(4) Remove ramps (14) from catwalk (18) and install at rear of bolster truck in
mounting brackets (11) attached to rear support of bolster trailer carrier.
(5) Remove chain binder ( 10) and tie-
down chain (9) at front of bolster trailer (4).