Graco Reactor 2 Repair Parts page 39

PROBLEM
PROBLEM PROBLEM
Hydraulic pump does not
develop pressure. Low or zero
pressure with screeching noise.
334946J
CAUSE
CAUSE CAUSE
Pump is not primed or lost its
prime.
Screeching noise is characteristic
of cavitation and is normal at
initial startup for a maximum of
30 seconds.
Hydraulic fluid is too hot.
Electric motor operating in
wrong direction for 3 Phase
system.
Drive belt loose or broken.
Troubleshooting
SOLUTION
SOLUTION SOLUTION
Check electric motor rotation.
Both motor and hydraulic pump
must rotate counterclockwise
when viewed from shaft end.
If rotation is incorrect, reverse
leads L1 and L2. See Connect
Electrical Electrical Cord Electrical Cord in Operation Cord
manual.
Check dipstick to ensure that
hydraulic reservoir is properly
filled (see Operation manual).
Check that inlet fitting is fully
tight, to ensure no air is leaking
into the pump inlet.
To prime pump, run unit at
lowest pressure setting and
slowly increase pressure. In
some cases it may be necessary
to remove motor cover and
drive belt to allow for manual
(counterclockwise) rotation of
hydraulic pump. Turn fan pulley
by hand. Verify oil flow by
removing oil filter to see flow
into filter manifold. Reinstall
oil filter. Do NOT operate unit
without a properly installed oil
filter.
If noise continues longer than
30 seconds, press
off the motor. Check that the
inlet fittings are tight and that
the pump has not lost its prime.
Ensure that the reservoir is
properly serviced. Improve
ventilation to allow more
efficient heat dissipation.
Motor must operate
counter-clockwise from pully
end.
Check drive belt condition.
Replace if broken.
Connect Connect
to shut
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