OM3054 03/13 Operating Instructions - Section 30 Page 30-17 DISABLED TRUCK DUMPING PROCEDURE Hookup Ensure there is an adequate and safe area to dump the loaded dump body. Sometimes it is necessary to dump a load from the body of a disabled truck with an inoperable hoist sys- tem. The following instructions describe the use of a "good" truck to provide the hydraulic power required to raise the body of a disabled truck to dump the load. 1. Safely park the good truck as close as possible to the disabled truck. When the good truck is in position next to the disabled truck, turn off the engine. 2.
Purge the pressure from the brake accumula- tors, steering accumulators, and hydraulic tanks on each truck. Figure 30-6 shows the quick disconnect fittings on a hoist manifold for connecting the hoist circuits between trucks. 3. Attach a hose from the power up quick discon- nect on the good truck to the power down circuit on the disabled truck. Hoses must be rated to withstand 19 305 kPa (2800 psi) or greater pressure. NOTE: The power down circuit uses a smaller diameter hose (tube) than the power up circuit. 4. Connect another hose from the power down quick disconnect on the good truck to the power up circuit on the disabled truck. FIGURE 30-6. HOIST CIRCUIT QUICK DISCONNECT FITTINGS 1.
Power Down Circuit 2. Power Up Circuit