MAINTENANCE 4.13 EVERY 2000 OPERATING HOURS OR YEARLY HYDRAULIC SYSTEM - CHANGE OIL, REPLACE SUCTION STRAINERS AND PULSATION DAMPER Legend for illust. Z 21171 (I-VI) Main Hydraulic pumps (D) Location of the suction strainers for the six main pumps (05-06) Main pump suction lines (8) Secondary hydraulic pumps on PTO gear 1 (9) Secondary hydraulic pumps on PTO gear 2 (10) Suction hose elbow (11) Gaskets (12) Suction strainer for the six main pumps (14) Plug (15) Port of leakage oil return line, use this port as Oil level and filler opening for the main pump housing Replace Suction Strainer of Main Pumps 1. Remove elbows (10), of all six main pump suction hoses (D), from suction oil reservoir.
2. Remove gaskets (11) and strainer (12) and discard. 3. Insert new strainer (12) with new gaskets (11) and mount suc- tion hose elbow (10) onto the suction oil reservoir. 4. Check to make sure that the hose clamps of suction hoses (D) are in good condition and properly fitted. 445