Toro Hydroject 3010 Service Manual page 85

Condition
___________________________________________________________________________________________
Machine aerates, but aeration
hole depth is shallow or inconsis ­
tent (continued).
________________________________________________________________________________________________________________________________________________________
Water in gear case
(milky or brown color in oil)
________________________________________________________________________________________________________________________________________________________
Oil leaking from below gear case
shim area.
________________________________________________________________________________________________________________________________________________________
Water in pump crankcase
(milky or brown color in oil)
________________________________________________________________________________________________________________________________________________________
Engine dies when water system
is engaged.
Hydroject 3010
Possible Cause
Low accumulator pre-charge or
damaged accumulator - TEST
NO. 1.
Low water system pressure AND
flow - TEST NO. 2.
Low water system pressure (flow is
OK) - TEST NO. 2.
Low water system flow (pressure is
OK) - TEST NO. 2.
Improper water valve lift - TEST
NO. 3.
Worn or damaged water valve -
TEST NO. 2.
Worn or damaged water valve low
pressure water seal and oil seal.
Worn or damaged water valve oil
seal.
Worn or damaged water pump low
pressure seal or cracked ceramic
plunger.
Low engine RPM.
Relief pressure too high - TEST
NO. 2.
Low engine power.
Jammed or siezed pump or gear-
case.
Page 6 - 11
Correction
Charge accumulator with dry Ni­
trogen. Rebuild or replace accu ­
mulator if necessary.
Rebuild pump.
NOTE: When testing, make sure
cam is not holding water valve
open - rotate gear so cam is off of
valve lifter.
If water is exiting relief valve out­
let hose, replace relief valve. DO
NOT attempt to adjust.
Rebuild water valve.
Check engine speed and correct
if necessary.
Rebuild pump.
Perform valve lift adjustment. Re-
pair valve or replace cam if nec­
essary.
Rebuild water valve.
Rebuild water valve.
Rebuild water valve.
Rebuild pump head and plunger
sleeves.
Throttle must be in FAST posi ­
tion. Adjust carburetor fast setting
to 3450 to 3550 RPM - no load.
Replace relief valve. DO NOT at-
tempt to adjust.
Check for contaminated fuel,
plugged fuel filter or fuel line,
plugged air cleaner, bad spark
plug. (see Chapter 3 - Engine).
Inspect components and repair
as necessary.
Troubleshooting