TM 5-2420-230-10
The vehicle is supplied with a towing hitch that can be fitted to the backhoe arm. To install towing hitch, refer to Para 7-4. The
only trailer authorized for use with the IHMEE is the M353 trailer (TM 9-2330-247-14&P, TM 9-6115-646-14&P, or
TM 9-6115-647-14&P).
Do not exceed the maximum rated towing capacity of the IHMEE is 8.8 tons (8 tonnes) for the
combined weight of the trailer and load. Failure to comply may result in injury or death to personnel
and/or damage to equipment.
When using the vehicle for towing, maintain the transmission in converter lockup mode as much as
possible to minimize transmission overheating. Failure to comply may result in damage to equipment.
To improve efficiency, the vehicle is equipped with a torque converter lockup system. The system should be engaged as much
as possible when driving on the highway.
When a trailer is attached to the IHMEE, the trailer service brakes are coupled to the vehicle foot brake and parking brake. For
additional information on the trailer brake, refer to Para 4-12.
When using the vehicle for towing, maintain the torque converter lockup mode as much as possible to reduce the possibility of
the transmission overheating. This requires the selection of the correct gear for the conditions. For example, if the torque
converter lockup drops out when towing up a steep incline, driver must engage a lower gear and then reselect the torque
converter lockup mode.
The IHMEE must be towed by a vehicle that has sufficient capacity and capabilities to safely
perform the task. The towing vehicle must also be equipped with a suitable tow bar that applies an
equal force to each of the two recovery lugs.
To avoid damaging the transmission, the drive shafts must be disconnected prior to towing the
vehicle a distance greater than 547 yards (500 m). Failure to comply may result in damage to
equipment.
Whenever possible, load the IHMEE on to a flat rack or truck if the towing distance is greater than 547 yards (500 m).