Maintenance - Section 4 08/07 OM4016 Page 4-16 Lubrication and Service HYDRAULIC FILTERS Filter Replacement 1. Lower the dump body and shut down the engine. Release hydraulic tank filler cap slowly to remove any internal pressure. 2. Turn the oil filler caps (3 & 8, Figure 4-3) slowly counterclockwise to release internal tank pres- sure. 3. Remove bolts (2) on filter covers (1). 4. Remove the elements (2, Figure 4-4) from housing. 5. Thoroughly clean filter housings, covers (4) and bypass valve (3) components. FIGURE 4-4. HYDRAULIC TANK FILTERS 1. Hydraulic Tank 2. Filter Element 3. Bypass Valve 4. Cover 6. Install new elements. Install bypass valves and covers.
Tighten bolts (2, Figure 4-3) to standard torque. 7. Check oil level; oil must be visible in sight glass. HYDRAULIC TANK BREATHER Cleaning 1. Shut down the engine and open hydraulic tank filler caps slowly to relieve any internal pres- sure. 2. Clean dirt accumulation from area of breather (9, Figure 4-3). 3. Remove the breather from the tank. 4. Remove snap ring (1, Figure 4-5), cover (2) and filter element (3). 5. Clean breather element in solvent and blow dry. Clean remaining parts in solvent and dry thor- oughly. Replace element, if element appears damaged or doesn't clean up thoroughly. 6. Install element, cover and snap ring. 7. Install breather element on hydraulic tank. FIGURE 4-5.
HYDRAULIC TANK BREATHER 1. Snap Ring 2. Cover 3. Element