Generator Bearing; Storage Procedure; Lubrication System; Cooling System - Kohler 40COZ/33CFOZ Service Manual

3.2 Generator Bearing

Replace the end bracket bearing every 10,000 hours of
operation. Service more frequently if bearing inspection
indicates excessive rotor end play or bearing damage
from corrosion or heat buildup. Replace the tolerance
ring, if equipped, if removing the end bracket. The end
bracket bearing is sealed and requires no additional
lubrication. Have all generator service performed by an
authorized service distributor/dealer.

3.3 Storage Procedure

Perform the following storage procedure before taking a
generator set out of service for three months or longer.
Follow the engine manufacturer's recommendations, if
available, for fuel system and internal engine
component storage.
3.3.1 Lubricating System
Prepare the engine lubricating system for storage as
follows:
1. Run the generator set for a minimum of 30 minutes
to bring it to normal operating temperature.
2. Stop the generator set.
3. With the engine still warm, drain the oil from the
crankcase.
4. Remove and replace the oil filter.
5. Refill the crankcase with oil suited to the climate.
6. Run the generator set for two minutes to distribute
the clean oil.
7. Stop the generator set.
8. Check the oil level and adjust, if needed.
3.3.2

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.
18 Section 3 Scheduled Maintenance
3.3.3

Fuel System

Prepare the fuel system for storage as follows:
Diesel-Fueled Engines
1. Fill the fuel tank with #2 diesel fuel.
2. Condition the fuel system with compatible
additives to control microbial growth.
3. Change the fuel filter/separator and bleed the fuel
system. See the engine service manual.
3.3.4

Exterior

Prepare the exterior for storage as follows:
1. Clean the exterior surface of the generator set.
2. Seal all engine openings except for the air intake
x:sm:002:001
with nonabsorbent 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.
3.3.5

Battery

Perform battery storage after all other storage
procedures.
1. Place the generator set master switch in the
OFF/RESET position.
2. Disconnect the battery(ies), negative (--) lead first.
3. Clean the battery.
manufacturer's instructions for the battery cleaning
x:sm:002:002 procedure.
4. Place the battery in a cool, dry location.
5. Connect the battery to a float/equalize battery
charger or charge it monthly with a trickle battery
charger.
manufacturer's recommendations.
6. Maintain a full charge to extend battery life.
x:sm:002:003
Refer to the battery
Refer to the battery
TP-5737 5/01
x:sm:002:006a
charger