Drain Fuel Filter And Check Fuel Lines/Hoses; Check Coolant Level And Hoses; Check Radiator For Clogging - Generac Power Systems Protector Series Owner's Manual

Maintenance

Drain Fuel Filter and Check Fuel Lines/Hoses

1. See Figure 5-8. Place a shop rag beneath the fuel
filter (A) to catch water or fuel drips.
A
Figure 5-8. Drain Fuel Filter
2. Rotate fuel filter counterclockwise to remove from
filter adapter.
3. Install new fuel filter by hand until gasket just
contacts filter adapter. Tighten fuel filter an additional
3/4 to one full turn.
NOTE: Dispose of used filter at a proper collection
center.
4. Check fuel filter and fuel lines/hoses for leaks.
Tighten filter, fittings, and hose clamps if necessary.
5. Check fuel hoses for nicks, cuts, tears, or general
deterioration. Replace as necessary.

Check Coolant Level and Hoses

WARNING
Risk of burns. Allow engine to cool before
draining oil or coolant. Failure to do so could
result in death or serious injury.
NOTE: On 2.5L models, remove ten screws to release
louvered air discharge panel on left side of enclosure.
1. See Figure 5-9. Verify coolant level is between the
HOT and COLD marks on the overflow reservoir
(B). Coolant expands when hot, so the level may
be higher than the HOT mark. Do not add coolant
higher than the HOT mark.
2. If the coolant level is below the COLD mark,
remove fill cap from overflow reservoir and add
coolant. See Coolant Water
3. Check coolant hoses (A) for leaks. Tighten hose
clamps, if necessary.
32
006187
(000139)
Treatment.
4. Check hoses for nicks, cuts, tears or general
deterioration. Replace as necessary.
NOTE: On 2.5L models, install louvered air discharge
panel. Alternately tighten ten screws to 90 in-lb (10 Nm)
using a crosswise pattern.
A
B
Figure 5-9. Coolant Overflow Reservoir and Drain

Check Radiator for Clogging

Direct flashlight beam through openings in fan guard to
inspect radiator fins.
accumulations of dirt or other deposits. If necessary,
clean as follows:
1. On right side of enclosure, loosen two clamps at
each end of turbocharger exhaust outlet pipe.
Remove pipe, clamps and rubber couplings from
engine.
2. Remove four screws with nylon washers to release
fan guard from radiator shroud.
3. On left side of enclosure, loosen two clamps at
each end of air intake pipe. Remove pipe, clamps
and rubber couplings from engine.
4. Remove coolant hoses from holding clamps.
5. Remove four screws with nylon washers to release
fan guard from radiator shroud.
6. Carefully remove any debris from radiator fins. Use
warm soapy water and a soft bristled brush to
remove dirt and other deposits, if necessary.
7. On left side of enclosure, install four screws with
nylon washers to fasten fan guard to radiator
shroud.
8. Install coolant hoses into holding clamps.
Owner's Manual for Stationary Diesel Generators
006383
Hose
Carefully look for debris,