42 TP-7173 10/20
10.2 Cooling System
Prepare the cooling system for storage as follows:
1. Check the coolant freeze protection using a coolant tester.
2. Add or replace coolant as necessary to ensure adequate freezing protection. Use the guidelines included in the engine
operation manual.
3. Run the generator set for 30 minutes to redistribute added coolant.
10.3 Exterior
1. Clean the exterior surface of the generator set.
2. Seal all engine openings except for the air intake with non absorbent adhesive tape.
3. To prevent impurities from entering the air intake and to allow moisture to escape from the engine, secure a cloth over
the air intake.
4. Mask electrical connections.
5. Spread a light film of oil over unpainted metallic surfaces to inhibit rust and corrosion.
10.4 Alternator
Risk of fire.
Can cause severe injury or death.
Do not smoke or permit flames or sparks near fuels or the fuel system.
Combustible materials. A fire can cause severe injury or death. If using generator heaters during storage, remove
combustible materials such as covers from contact with the heater or from areas where heat could potentially cause a fire.
Humidity, moisture, and dust can damage the alternator during storage. Store the generator set in a clean, dry area and protect
the alternator from inclement weather. Keep room temperatures relatively constant to prevent condensation on the windings.
Cover ventilation and other entry points to prevent damage by rodents, birds, and insects.
Before returning the alternator to service, have an authorized service distributor/dealer, perform the following alternator service:
Clean the ventilation circuit.
Blow dust off the windings.
Check the rotor and stator winding insulation.
Check the rotor and stator winding resistance and continuity.
On units with regreasable bearings, grease the bearings and rotate the shaft to distribute grease on the bearings.
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