Every 50 Hours

1. 
   H96423-UN-27AUG10

   
   H97528-UN-04AUG10

   
   H97451-UN-30JUL10

   
   H97452-UN-30JUL10

   
   H91012-UN-20MAR08

   Variable Speed / Multi-Speed Reverser Gearcase

   A - Sight Glass

   B - Fuel Precleaner Filter

   C - Dipstick

   D - Knob

   E - Fresh Air Filter

   F - Dipstick

   Hydrostatic/Hydraulic Oil - Check with header on ground. Oil level must be at top of sight glass (A) with feeder house fully lowered. Add oil as needed.

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2. Fuel Precleaner Filter - Visually check fuel precleaner filter (B) and clean if buildup is visible on screen. Close fuel tank shut off valve. Remove filter and clean screen. Install screen and filter and open fuel tank shut off valve to fill (see Fuel Precleaner Filter Cleaning in Service Engine section.)

3. Radiator, Charge Air Cooler, Oil Cooler and Condenser - Clean radiator by blowing compressed air from inside out. Check areas for chaff buildup and clean if necessary.

4. NOTE: On machines equipped with grain tank covers, it is necessary to remove bottom support rod hardware to lower auger.

   Mass Flow Sensor - Lower auger and clean mass flow sensor plate.

5. Two Speed Separator Drive - Remove dipstick (C) and check oil level. Add oil as needed to correct level on dipstick.

6. NOTE: Cab fresh air filter may require cleaning sooner in very dusty conditions.

   Cab Fresh Air Filter - Turn knob (D) and lower access cover. Remove fresh air filter (E) to clean or replace.

7. Feeder House Reverser Gearcase - Raise feeder house and lower safety stop. Gearcases with an oil cooler will require gearcase be run for several minutes. This ensures that the cooler is filled with oil. Oil level must show on knurled part of dipstick (F).