Toro 09802 HydroJect 3010 Operator's Manual page 38

Problem
The water injection system is
making an unusual noise when
aerating.
Possible Causes
1. There is air in the system.
2. A nozzle is missing or there are
too many large nozzle installed.
3. There are broken springs in the
nozzle extension check valve.
4. The gearbox drive shaft or
couplers are worn.
38
Corrective Action
1. With the water supply on, open
the bleed valve under the
accumulator/valve body. If
mechanical noise continues
during aeration, stop the unit
and have it serviced by an
Authorized Toro Distributor.
2. Open the bleed valve and
examine the nozzles. Verify the
size and quantity per the
recommendation chart.
3. Replace the springs and
inspect the ball and seat.
4. Remove the drive shaft guard
and repair or replace as
necessary.