Operation - Section 3 08/07 OM3018 Page 3-22 Operating Instructions (12) Hoist Control The hoist control (12, Figure 3-1) is a four position, hand operated control lever located to the left of the operator seat. The hoist control lever and hoist con- trol valve are connected by a mechanical push-pull control cable. 5. After lowering the dump body a certain distance, move dump lever to the FLOAT position. Release the lever and it will return automatically to the FLOAT position. The body will move down under its own weight. To raise the dump body: (refer also to "Operating Instructions, DUMPING" ) 1.
Move Shift Lever (1) to the position, and apply Parking Brake Valve Lever (6) to LOCKED position. NOTE: When traveling, always set the dump lever at the FLOAT position, regardless of whether or not the truck is loaded. If the transmission range selector is moved to any position other than "N" (neutral) when the dump lever is not at the FLOAT position, the central warning lamp will light up and the alarm buzzer will sound. 6. Release Parking Brake Valve Lever. SAFETY LOCK Move hinged lock around dump lever. This device locks the dump lever in the HOLD position. Move dump lever to the "RAISE" position and release dump lever:
it will remain in this position until moved to HOLD - either manually or by the body-up limit linkage. 2. Raise engine RPM to accelerate hoist speed. When body is near the maximum angle, reduce engine RPM (reduce foot pressure on the accel- erator pedal) to reduce shock load to the hydraulic system and hoist cylinders. When carrying out inspection on the machine with the body raised, always lock the dump lever in the HOLD position, and then install the body up safety pins. 3. When the dump body rises to the set position (adjusted position of body positioner) dump lever returns to the hold posi- tion.
If desired to raise the body further, move dump lever to raise position and dump body will rise. If dump lever is released, lever will return to hold position. Dump body will stop in that position. 4. After material being dumped clears body, move dump lever to the lower position and dump body will start to move down.