OM3070 Operation - Section 30 Operating Instructions Page 30-15 Hookup 1. When the good truck is in position, stop the engine and wait two minutes to allow the hydraulic system to bleed down. Ensure hydraulic pressure has bled off before connect- ing any fittings or hoses. 5. To disconnect the hoses, stop the engine(s) on both trucks. Wait two minutes for the hydraulic systems on both trucks to bleed down. Ensure all hydraulic pressure has been relieved before disconnecting the hoses. NOTE: Maximum hydraulic pressure is not to exceed 24 304 kPa (3,525 psi). 2. Connect the hydraulic supply hose to the supply disconnect coupling (1, Figure 30-5). NOTE:
Failure to attach the return hose from the disabled truck to the hydraulic pressure source could cause the disabled truck hydraulic tank to overflow, or potentially damage the hydraulic power source due to lack of oil. 3. Connect the return hose to the return discon- nect coupling (2). 4. Start the engine on the good truck. Check the operation of the steering and brake system of the good truck before moving the disabled truck. FIGURE 30-3. BLEEDDOWN MANIFOLD 1. Supply Quick Disconnect 2. Return Quick Disconnect 3. Bleeddown Manifold