TM-9-2320-434-10
TRUCK, LOAD HANDLING SYSTEM (LHS), 8X8, M1120
TECHNICAL MANUAL; OPERATOR'S MANUAL
JUNE 2009
TM-9-2320-434-10 - Page 257 of 1324
OPERATOR MAINTENANCE
DRIVE VEHICLE UP/DOWN STEEP GRADE
INITIAL SETUP:
Not Applicable
DRIVE VEHICLE UP STEEP GRADE
Press and hold throttle pedal (1) all the way down as vehicle moves up grade. Transmission
will automatically downshift gears as needed.
AIR BRAKE
PARKING
BRAKE
TRAILER
AIR SUPPLY
EXEXEX
EXEXEX
EXEX
EXEX
1
Figure 1.
DRIVE VEHICLE DOWN STEEP GRADE
CAUTION
•
Do not allow speed to go above 2100 RPM when driving downhill, or
damage to engine can result.
•
Engine brake operates best when engine speed is between 1650 and
2100 RPM. Transmission torque converter lockup valve may
disengage below 1650 RPM resulting in loss of engine power.
TM 9-2320-434-10
0048
0048-1
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