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DA7000 SERIES GENERATORS • OPERATION AND PARTS MANUAL — REV. #5 (01/20/11) — PAGE 35
2. Flush the radiator by running clean tap water through
radiator until signs of rust and dirt are removed. DO
NOT clean radiator core with any objects, such as a
screwdriver.
3. Check hoses for softening and kinks. Check clamps
for signs of leakage.
4. Tighten coolant drain plug and reinstall the overfl ow
tank.
5. Fill with coolant as recommended by the engine
manufacturer.
6. Close radiator cap tightly.
RADIATOR CLEANING
The radiator (Figure 36) should be sprayed (cleaned) with
a high pressure washer when excessive amounts of dirt
and debris have accumulated on the cooling fi ns or tube.
When using a high pressure washer, stand at least 5 feet
(1.5 meters) away from the radiator to prevent damage to
the fi ns and tube.
Figure 36. Radiator Cleaning
WARNING
Allow engine to cool when fl ushing out
radiator. Flushing the radiator while hot
could cause serious burns from water or
steam.
MAINTENANCE
GENERATOR STORAGE
For long term storage of the generator the following is
recommended:
Drain the fuel tank completely. Treat with a fuel stabilizer
if necessary.
Completely drain the oil from the crankcase and refi ll if
necessary with fresh oil.
Clean the entire generator, internal and external.
Cover the generating set and store in a clean, dry place.
Disconnect the negative battery cable from the battery.
Make sure engine coolant is at proper level.
If generator is mounted on a trailer, jack trailer up and
place on blocks so tires do not touch the ground or block
and completely remove the tires.