SECTION 10
RECIRCULATION SYSTEM
Jan 2003
Page 10-2
05114657
10.2 Operation
The recirculation pump (1) takes oil from the tank (6) and pumps it to the oil to
water heat exchanger (3), then to the oil filter (5) and back to the tank.
The visual indicator (4) indicates when the filter element needs replacement. It
should be read when both the water jet pump is running and the oil
temperature is approximately 115°F. If the indicator shows yellow or just
started into the red zone, then it is time to change the filter element.
Oil fill port must be used when pumping oil into tank to assure cleanliness. By
filling at this point, the hydraulic oil must pass through the hydraulic filter to
get to the hydraulic tank, guaranteeing that the oil into the tank gets at least
one pass through a pretty good filter.
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