OM4054 09/11 Lubrication and Service - Section 40 Page 40-3 QUICK FILL SERVICE CENTER The service center (Figure 40-2) is located on the left side of the truck below the hydraulic tank. The ser- vice center can be used to fill system fluids at a higher rate of speed than manually adding fluids and grease. PERIODIC REPLACEMENT OF CRITICAL PARTS To ensure safe operation of the truck, it is necessary to perform periodic maintenance for critical parts. Fabrication of safety devices and other component parts have been designed to high standards. How- ever, all parts are subject to wear and gradual fatigue during continuous use.
Since it is difficult to deter- mine accurately the process of change in quality, wear, or fatigue, judgments must be made whether or not some parts should be replaced even if they do not show any faulty symptom at the time. Of course, any part found to have an abnormality must be repaired or replaced, regardless of the time it has been used. Connect a filling device to the appropriate fitting on the service center to add fluids/grease. Use caution when adding fluids to avoid overfilling. Replace the following parts every 4000 hours or every two years, whichever comes first: 1. Fuel system hoses 2. Rubber hoses for brake piping 3. High pressure hoses in steering circuit 4.
High pressure hoses in hoist circuit 5. Hoses at brake cooling inlet and outlet (wheel) 6. Hose at discharge side of brake cooling pump 7. Hose at discharge side of transmission pump FIGURE 40-2. SERVICE CENTER 8. Accumulators Refer to the following table for the maximum recom- mended fill pressures for the service center. Replace the following parts every three years: 1. Seat belt MAXIMUM FIll PRESSURES Fill System kPa psi Engine Crankcase 345 50 Hydraulic Tank 345 50 Coolant 345 50 Grease 10 342 1,500