DRIVE CARRIER (M548A3) Continued
Carrier operation during hot weather may result in heat stress to crew members. Crew
members should limit their exposure to high temperature and humidity based on TB Med 507,
using PHEL chart (Appendix C) curve as a guide.
Sticking or failed linkage can cause carrier crash. Personnel can be killed or injured. If
accelerator pedal does not operate smoothly, or engine does not return to idle when accelerator
pedal is released, do not drive carrier.
Do not attempt to change carrier forward or reverse movement by shifting until carrier comes
to a complete stop. Above 4 mph (6 km/hr), if you attempt to shift into reverse (or forward), the
carrier will continue in the direction you are moving when you attempted to make the change.
Failure to follow the above instructions could result in injury or death to personnel and
destruction of equipment or property.
The crossdrive transmission in the M548A3 is designed not to change direction of movement at
speeds above 4 mph (6 km/hr). If you attempt to shift into reverse while moving forward, above
4 mph (6 km/hr), the transmission will not go into reverse even with the transmission shift
controller set to "R (reverse), and the carrier will continue to move forward when you
accelerate. Likewise, if you attempt to shift into a forward gear while moving above 4 mph (6
km/hr) in reverse, the carrier will continue to move in reverse when you accelerate.
Make sure cab and cargo compartment doors are closed and latched. Have all personnel fasten their seat belts.
START ENGINE (WP 0014 00).