TM-9-2320-283-13-P
ANTI-LOCK BRAKE SYSTEM (ABS) M915A1
TECHNICAL MANUAL; OPERATOR AND FIELD MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST (RPSTL)
AUGUST 2012
TM-9-2320-283-13-P - Page 47 of 400
0006-1
TM 9-2320-283-13&P
0006
OPERATOR AND FIELD MAINTENANCE
OPERATION UNDER UNUSUAL CONDITIONS
INITIAL SETUP:
References
TM 9-2320-283-10
AR 70-1
GENERAL
This work package provides instructions for operating the M915A1 tractor equipped with ABS under unusual
conditions.
UNUSUAL ENVIRONMENT/WEATHER
Braking on Slippery Surfaces
WARNING
Operator and passenger must wear seatbelts during operation. Ensure
seatbelts are adjusted for proper fit. Failure to comply may result in
injury or death to personnel. Seek medical attention in the event of an
injury.
Stopping distances may increase on wet pavement, gravel, and snow
covered roads due to the ABS responding to prevent wheel lockup.
On very slippery surfaces such as sheet ice, braking distance may
further increase. Reduce vehicle speeds on all slippery surfaces,
anticipate slowing or stopping ahead of time, and avoid panic stops.
Failure to comply may result in damage to equipment and possible
injury or death to personnel. Seek medical attention in the event of an
injury.
Pumping the service brake with ABS may lengthen the stopping
distance which could lead to a collision. Keep foot firmly planted on
brake pedal when stopping, rather than manually pumping the brakes.
Failure to comply may result in damage to equipment and possible
injury or death to personnel. Seek medical attention in the event of an
injury.
NOTE
The vehicle has been designed to operate safely and sufficiently
within the limits specified in TM 9-2320-283-10 and in this TM.
Operation beyond these limits is prohibited IAW AR 70-1 without
written approval from TACOM Life Cycle Management Command,
ATTN: AMSTA-LC-LMPP, Warren, MI 48397-5000.
Operators must know how to use the controls and indicators before
starting and driving the tractor, and must be able to use the features
of the tractor in the safest and most efficient way to accomplish their
mission.
The primary difference in applying the service brake with ABS is to
keep foot firmly planted on brake pedal when stopping, rather than
manually pumping the brakes to prevent wheel lockup and
subsequent skidding.
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