TM-9-2320-280-10 HMMWV Operator Manual Download
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TM 9-2320-280-10 Change 1 2-73 Item No. Interval Cr ewmember Procedure Not Fully Mission Capable If: Table 2-2. Preventive Maintenance Checks and Services (Cont’d) Location Item to Check/ Service DRIVER 14 Before Brakes NOTE Engine must be warmed up and idling, trans- mission in “D” (drive), transfer in “H” (high), and parking brake released to perform the following check. a. Check brake pedal travel. a. Brakes will not With vehicle at idle, transfer stop the vehicle. in 2H, and transmission in D, allow vehicle to move forward. As vehicle moves, slowly de- press brake pedal. Pedal should travel 1 to 1-1/2 inches before brakes take hold. After brakes take hold, pedal may exceed the 1 to 1-1/2 inch travel. This is normal. b. Check parking brake. b. Parking brake With parking brake fully inoperable or applied, transmission in D unable to hold or R, and transfer in H, vehicle vehicle. should not move. c. Check parking brake c. Parking brake lever safety mechanism lever safety to ensure that it latches mechanism is when parking brake is not functioning applied. properly.