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TP-6331 5/0416 Section 3 Scheduled Maintenance
3.10 Circuit Protection
If the generator set circuit breaker trips or the fuses blow
repeatedly, see Section 4, Troubleshooting, for possible
causes.
3.10.1 Line Circuit Breaker
A line circuit breaker interrupts the generator output in
the event of a fault in the wiring between the generator
and the load. The line circuit breaker location is shown
in Figure 1-1. See Figure 3-8 for the circuit breaker
ratings. If the circuit breaker trips, reduce the load and
switch the breaker back to the ON position. With the
breaker in the OFF position the generator set runs but
the generator output is disconnected from the load.
Model
Circuit Breaker
Rating, Amps
8.5RES 40
12RES 50
Figure 3-8 Line Circuit Breakers
3.10.2 Fuses
The engine harness contains two 10-amp and one
20-amp inline fuses. See Figure 3-9. Another 10-amp
fuse protects the battery charger.
Always identify and correct the cause of a blown fuse
before restarting the generator set. Refer to Section 4,
Troubleshooting, for conditions that may indicate a
blown fuse. Replace blown fuses with identical
replacement parts.
Fuse Label
Part
Number
Location
Auxiliary winding F1 292937 Lead 55
Relay interface
board
F2 223316 Lead PF2
Controller F3 223316 Lead PF1
Battery charger — AGS 10 Battery charger DC
lead. See Section 2.6.
Figure 3-9 Fuses
3.11 Storage Procedure
Perform the following storage procedure before
removing the generator set from service for three
months or longer. Follow the engine manufacturer’s
recommendations for storage, if available.
Note: Run the generator set monthly whenever
possible.
3.11.1 Lubricating System
1. Operate the generator set until it reaches operating
temperature, or about 15 minutes.
2. Stop the generator set.
3. While the engine is still warm, drain the engine
lubrication oil from the engine crankcase.
4. Refill the engine crankcase with oil. See Section
3.3.3 for oil recommendations.
5. Run the generator set for a few minutes to
distribute the clean oil.
6. Stop the generator set.
3.11.2 Fuel System
1. Start the generator set.
2. With the generator set running, shut off the gas
supply.
3. Run the generator set until the engine stops.
4. Place the generator set master switch in the
OFF/RESET position.