OM4016 08/07 Maintenance - Section 4 Lubrication and Service Page 4-19 TRANSMISSION FILTER The transmission filter element (Beta 25 = 200) should be replaced every 500 hours of operation or sooner if the warning light indicates high restriction. This maintenance interval may be increased or reduced, depending on operating conditions, by observing the warning light indicator. This filter assembly is equipped with a pressure switch to indicate a high pressure differential (restric- tion). The switch will close @ 2.5 kg/cm 2 (35 psi) by- pass pressure. Actual by-pass of the hydraulic fluid does not occur until 3.5 kg/cm 2 (50 psi) by-pass pres- sure. Service 1.
Remove drain plug (7, Figure 4-8) and drain the oil from the filter housing. Tighten plug after all oil is drained. 2. Unscrew filter bowl (4) from head assembly (1). 3. Remove the element and thoroughly clean and dry all component parts. 4. Coat a new seal (9) with clean engine oil and install. 5. Install a new element (5) and install the filter bowl (4) into the head assembly (1). 6. Start the engine and let it idle for 5 minutes. Stop engine and check for leaks. Check trans- mission for proper oil level and adjust if neces- sary. FIGURE 4-8. TRANSMISSION FILTER 1. Head Assembly 2. Core Kit 3. Bypass Valve 4. Filter Bowl 5. Filter Element 6. Pressure Switch 7. Drain Plug 8. O-Ring 9. Seal