- 1. Change the engine oil and filter.
- 2. Change the coolant conditioner element.
- 3. Check and adjust the alternator and fan drive belts.
- 4. Change the oil in the rotor drive cooling oil reservoir.
- 5. Lubricate those points shown in the lubrication chart.
Changing The Engine Oil And Filter
HOT OIL OR COMPONENTS CAN CAUSE BURNS IF THEY CONTACT SKIN. USE CAUTION WHEN DRAINING OIL OR CHANGING FILTERS.
With the engine stopped and the oil warm:
- 1. Remove the crankcase oil drain plug(s) and allow the oil to drain.
- 2. Wipe the dirt from the oil filter housing.
- 3. Remove and discard the oil filter.
- 4. Clean the filter base. Make sure all of the old gasket is removed.
- 5. Apply a light coat of engine oil to the seal of the new filter, then install the filter. Hand tighten the filter an additional 3/4 turn after the gasket contacts the base.
- 6. Clean the drain plug(s) in clean nonflammable solvent and install the plug(s).
- 7. Fill the engine crankcase with oil meeting the specification on page 3-1.
- 8. Start the engine and inspect for leaks.
- 9. Reduce the engine speed to low idle. Maintain the oil level to "Full" mark on the dipstick. Stop the engine.
Changing The Coolant Conditioner Element
AT OPERATING TEMPERATURE, ENGINE COOLANT IS HOT AND UNDER PRESSURE.
STEAM CAN CAUSE PERSONAL INJURY.
CHECK COOLANT LEVEL ONLY WHEN ENGINE IS STOPPED AND RADIATOR IS COOL ENOUGH TO TOUCH WITH YOUR HAND.
REMOVE FILLER CAP SLOWLY TO RELIEVE PRESSURE.
COOLING SYSTEM CONDITIONER CONTAINS ALKALI. AVOID CONTACT WITH SKIN AND EYES TO PREVENT PERSONAL INJURY.
ALL WATER IS CORROSIVE AT ENGINE OPERATING TEMPERATURE. USE EITHER AVSpare COOLING SYSTEM CONDITIONER LIQUID, OR THE COOLANT CONDITIONER ELEMENT TO TREAT EITHER PLAIN WATER OR ETHYLENE GLYCOL ANTIFREEZE SOLUTION. NEVER USE BOTH THE LIQUID COOLING SYSTEM CONDITIONER AND THE COOLANT CONDITIONER ELEMENT AT THE SAME TIME.
DO NOT USE AVSpare COOLING SYSTEM CONDITIONER OR COOLANT CONDITIONER ELEMENTS WITH DOWNTHERM 209 FULL-FILL COOLANT.
- 1. Close the inlet and the outlet valves in the filter base.
- 2. Remove the coolant conditioner element.
- 3. Clean the element mounting base. Make certain all of the old element gasket is removed.
- 4. Coat the seal of the new maintenance coolant conditioner element with a thin film of clean engine oil.
- 5. Install the element until the seal contacts the base, then tighten an additional 3/4 turn.
- 6. Open the inlet and outlet valves.
- 7. Start the engine and inspect for leaks.
Checking The Alternator And Fan Drive Belts
INADVERTENT STARTING OF THE ENGINE COULD CAUSE PERSONAL INJURY. STOP THE ENGINE AND REMOVE THE KEY FROM THE IGNITION SWITCH.
- 1. Check the belts for excessive wear, fraying and cracking.
When belt replacement is necessary, belts must be replaced in complete matched sets. Never replace only one belt. The new belt will carry all the load and fail rapidly.
- 2. Apply a 25 pound (11.4 kg) force to the belt, midway between the driving and driven pulley. Measure the belt deflection.
Proper belt deflection is 9/16 to 13/16 inch (14 to 20 mm). Adjust the belt tension as required.
To adjust the alternator belts:
- 1. Loosen the locknut on the belt tightener rod.
- 2. Turn the adjustment nut until the correct belt deflection is obtained.
- 3. Tighten the locknut.
- 4. Recheck the belt adjustment.
To adjust the fan drive belts:
- 1. Loosen the mounting bolts.
- 2. Turn the adjusting bolt to adjust the drive belts.
- 3. When the correct belt deflection is obtained, tighten the mounting bolts.
- 4. Recheck the belt adjustment.
Changing The Oil In The Rotor Drive Cooling Oil Reservoir
THE RESERVOIR LUBRICANT AT OPERATING TEMPERATURE CAN CAUSE SERIOUS BURNS. LET THE MACHINE STAND IDLE UNTIL THE OIL HAS COOLED AND THE RESERVOIR IS COMFORTABLE TO TOUCH.
- 1. Place a suitable container beneath the reservoir drain.
- 2. Remove the drain plug and allow the oil to drain.
- 3. Reinstall the drain plug.
- 4. Fill the reservoir with lubricant meeting the specification on page 3-2.