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Condition Possible Cause Correction
Mach ne stops aerating (pump
shuts down during aeration).
Mach ne not mov
Inadequate water supply.
ugged inlet water f lter.
ectrical problem.
Norma condition of nter ock sys-
tem. Operator must hold engage
button in to aerate with tract
bail in neutral.
Check for k nked water supply
hose, restr ction in line or part ally
open va ve at water source.
Check water pressure at gauge
when pump is engaged. If pres-
sure drops to less than 15 PSI,
but was ally higher, replace
water f lter.
See Troubleshooting in
Chapter 5 - E ectrical System
Water system engages (pump
belt and gear case drive shaft
rotate), but no aerat on holes are
produced or aeration hole depth
is shallow or incons stent.
Air in system.
Soil density or mo sture content.
ugged nozz es, worn nozz es or
improper nozz e conf guration.
NOTE: Check operation of nozz
by aerating over a piece of
cardboard, then inspect
cardboard.
Gear or cam damage in gear case.
n high pressure water sys-
tem.
With engine OFF and water supp-
ly connected, open high pressure
bleed valve and bleed air out of
system.
If hole depth was sat sfactory
before in another area, different
nozz e configuration may be re-
quired.
Stop engine, open high pressure
bleed valve, then inspect noz-
es. Check for plugged nozz es.
Ver fy s ze and quantity (see Noz-
ze and Approximate Depth
Chart). Nozz es that are too large
will cause loss in pressure and
could cause damage to the ac-
cumulator and other water sys-
tem components.
Inspect gear case for gear or
cam damage and repair as neces-
sary.
Check for eaks w th water sys-
tem engaged. Stop engine, open
high pressure bleed valve and
repair eaks as necessary.
NOTE: Excessive water exiting
between pump head and
crankcase ndicates pump wear
or damage. Excess ve water exit-
ing from shim area below gear-
case indicates valve wear or
damage. Do water system tests
and make repairs as necessary.
Troubleshooting Page 6 - 10 HydroJect 3010