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Troubleshooting
The cause of an improperly functioning water system is
best diagnosed with the use of proper testing equipment
and a thorough understanding of the complete system.
The charts that follow contain detailed information to
assist in troubleshooting. There may possibly be more
than one cause for a machine malfunction.
ALL POSSIBLE CAUSES SHOULD BE CHECKED IN
THE ORDER IN WHICH THEY ARE LISTED ON THE
CHARTS.
Troubleshooting Water System Problems
Refer to the Testing section of this Chapter for precau-
tions and specific test procedures.
NOTE: The water aeration system operates under very
high pressures and severe duty cycles. Performance of
the water system will be gradually reduced over a period
of time due to normal wear in the pump, valve and
accumulator. If you perform water system tests to isolate
a possible problem, such as reduced hole depth, it is
recommended that ALL tests be performed in the order
listed even if the apparent problem has been isolated,
such as low accumulator pre-charge pressure. This will
verify that all components are operating properly.
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Condition Possible Cause Correction
Mach ne does not start aerating
when engage button is pushed in
(pump belt does NOT rotate).
Transport wheels not fully raised
(unit lowered to aerate mode).
Low inlet water pressure.
Sheared pump c utch key.
ectrical problem.
Check to make sure transport
wheel arms are fully raised (unit
in aerate mode).
Check that water pressure gauge
reads 20 to 30 PSI or more. If
pressure is low, obtain proper
water supply source.
Repair.
See Troubleshooting in
Chapter 5 - E ectrical System
Mach ne does not start aerating
when engage button is pushed in
(pump belt IS rotat ng but gear-
case drive shaft is NOT rotat ng.).
ectric brake c utch (valve c utch)
out of adjustment.
Sheared valve c utch key.
ectrical problem.
Check air gap at electr c brake
utch and adjust f necessary.
Repair.
See Troubleshooting in
Chapter 5 - E ectrical System
Mach ne makes unusual noise
rst start ng aerat
Air in system. NOTE: Re ef va ve
may “squeal” for a short per od of
me during init al startup due to air
in the system.
Damaged component.
With engine OFF and water supp-
ly connected, open high pressure
bleed valve and bleed air out of
system. Repeat procedure if
noise continues.
Check for damaged components
and repair or replace as neces-
sary.
HydroJect 3010 Page 6 - 9 Troubleshooting