c. Secondary System.
Unlike a conventional split system, the brakes on all four wheels will operate.
The secondary system will operate if air pressure is lost in the primary system. The modulating valve will sense the loss
of pressure in the primary system and the foot pedal will then modulate the release of air from the spring brake chamber.
As the air pressure decreases, the spring brake chambers will operate under spring pressure, progressively applying the
Prior to performing any maintenance on the Interim High-Mobility Engineer Excavator (IHMEE), perform the following
Ensure vehicle is positioned on level ground.
Raise Front-End Loader (FEL), install maintenance arm, and lower FEL onto maintenance arm, as required
Upon completion of maintenance activities, restore power and return vehicle to operational readiness using the following
Raise FEL, remove maintenance arm, and lower FEL to ground or travel position, as required
Complete necessary documents and return IHMEE to relevant authority.