OPERATION UNDER USUAL CONDITIONS
This work package contains instructions for safely operating the M977 Series, 8 X 8, Heavy Expanded Mobility Tactical
Truck (HEMTT) with Crew Protection Kit installed.
Read and follow the procedures in Operation Under Usual Conditions in TM 9-2320-279-10 before operating with
INITIAL ADJUSTMENTS AND DAILY CHECKS
N OT E
Refer to WP 0004 00 for the location and operation of operator controls.
Perform Before operation Preventive Maintenance Checks and Services (PMCS) before operating vehicle (WP 0008 00
WAR N I N G
Due to increased weight of HEMTT with Crew Protection Kit installed, operator should be aware of dif-
ferences in vehicle's driving characteristics and adjust driving accordingly. Failure to follow this warn-
ing may cause an accident and injury or death to personnel.
Due to increased weight of doors, use extreme caution when opening and closing doors. If vehicle is
parked on non-level ground, door may swing in direction of slope. Failure to follow this warning may
cause injury to personnel.
When placing foot on step to enter cab of vehicle, be aware of side blast deflector. Edge of side blast
deflector protrudes outward beyond step. Failure to follow this warning may cause injury to personnel.
CAU T I ON
Do not place foot on top of side blast deflector when entering cab. Failure to follow this caution may cause
damage to clearance light wires.
N OT E
During operation on rough roads, escape hatch may rattle or leak.
With Crew Protection Kit installed, vehicle is heavier than usual by approximately 2,491 lb (1130 kg). Due to this
increased weight, adjust driving to allow for greater stopping distance. Adjust vehicle speed accordingly and exercise
Vehicle exhibits oversteer characteristics at Gross Vehicle Weight (GVW); it will turn tighter than expected. To recover
an oversteering HEMTT, accelerate vehicle and/or reduce steering wheel angle.
Visibility to the sides and rearward is reduced with armor kit installed. Approach intersections with caution and use
assistance as needed to determine when intersection is clear and it is safe to proceed. Use ground guides when backing
Maintain good visibility for operating personnel. Keep ballistic glass at side door windows and windshield clean. Fol-
low cleaning instructions in Cleaning Ballistic Glass (WP 0010 00).
Operate heater/air conditioning system as needed to ensure proper cab ventilation.
END OF WORK PACKAGE