Toro 41568 Operator's Manual page 42

Problem
The sprayer will not operate or is
sluggish in either direction
because the engine bogs down or
stalls.
The sprayer will not operate in
either direction.
Abnormal vibration or noise.
Troubleshooting the Spray System
Problem
A boom section does not spray.
A boom section does not turn off.
A boom valve is leaking
Possible Causes
1. The parking brake is set.
1. The parking brake was not
released or the parking brake is
not releasing.
2. The transmission is broken.
3. The control linkage needs
adjustment or replacement.
4. The drive shaft or wheel hub
key has been damaged.
1. The engine mounting bolts are
loose.
Possible Causes
1. The electrical connection on
the boom valve is dirty or
disconnected
2. Blown fuse
3. Pinched hose
4. A boom by-pass valve is
improperly adjusted.
5. Damaged boom valve
6. Damaged electrical system
1. The valve is damaged.
1. An O-ring is deteriorated.
42
Corrective Action
1. Release the parking brake
1. Release the parking brake or
check the linkage.
2. Contact your Authorized
Service Dealer.
3. Contact your Authorized
Service Dealer.
4. Contact your Authorized
Service Dealer.
1. Tighten the engine mounting
bolts.
Corrective Action
1. Turn the valve off manually.
Disconnect the electrical
connector on the valve and
clean all leads, then reconnect
it.
2. Check the fuses and replace
them as necessary.
3. Repair or replace the hose.
4. Adjust the boom by-pass
valves.
5. Contact your Authorized
Service Dealer.
6. Contact your Authorized
Service Dealer.
1. Stop the spray system and
pump and turn off the sprayer.
Remove the retainer from
under the boom valve and pull
out the motor and stem. Inspect
all parts and replace any that
appear damaged.
1. Stop the spray system and
pump and turn off the sprayer.
Disassemble the valve and
replace the O-rings.