Troubleshooting The Spray System - Toro 41581 Operator's Manual

Troubleshooting the Spray System

Problem
A boom section does not spray.
A boom section does not turn off.
A boom valve is leaking
The pressure drops when you turn
on a boom.
The pressure increases when you p
turn on a boom. t b
Possible Causes
1. The electrical connection on
the boom valve is dirty or
disconnected.
2. A fuse is blown.
3. A hose is pinched.
4. A boom bypass valve is
improperly adjusted.
5. A boom valve is damaged.
6. The electrical system is
damaged.
1. The valve is damaged.
1. An O-ring has deteriorated.
1. The boom bypass valve is
improperly adjusted.
2. There is an obstruction in the
boom valve body.
y 1. A nozzle filter is clogged.
2. The boom bypass valve is
improperly adjusted.
47
Corrective Action
1. Turn the valve off manually,
disconnect the electrical
connector on the valve, clean
all leads, then connect the
electrical connector.
2. Check the fuses and replace
them as necessary.
3. Repair or replace the hose.
4. Adjust the boom bypass valves.
5. Contact an Authorized Service
Dealer.
6. Contact an Authorized Service
Dealer.
1. Stop the spray system and
pump, turn off the sprayer,
remove the retainer from under
the boom valve, pull out the
motor and stem, inspect all
parts, and replace any that are
damaged.
1. Stop the spray system and
pump, turn off the sprayer,
empty out the chemicals, rinse
out the system, disassemble
the valve, and replace the
O-rings.
1. Adjust the boom bypass valve.
2. Remove the inlet and outlet
connections to the boom valve
and remove any obstructions.
1. Remove and clean all nozzles.
2. Adjust the boom bypass valve.