68
MAINTENANCE
2. Remove screw from end of valve stem and
pin from handle to replace the valve O-Ring's.
There is one (1) at each end of the spool, one (1)
on the bypass valve, two (2) on the valve body,
and three (3) on the valve stem.
3. Reassemble in opposite sequence.
4. Retest, per inspection procedure.
FLOWMETER (SEE FIG. 7):
The Flowmeter may need to be disassembled for
periodic cleaning or to remove an obstruction.
Disconnect the signal wire and remove the
retaining cap by unscrewing it from the body. Pull
the Paddle Wheel assembly from the housing.
Once disassembled, use warm water and if
necessary, a mild detergent and soft bristled
brush to clean all parts. DO NOT USE
SOLVENTS OR DIESEL FUEL TO CLEAN THE
FLOWMETER. A magnet should work well for
removing fine metallic particles from the turbine.
Inspect all parts. Check for excessive bearing or
shaft wear.
Keep all electrical connections clean at all
times.
A protective coating may be applied to the
completed electrical connections, if desired.
SPRAY PRO
MONITOR:
Store the monitor in a cool dry location if it will
not be used for an extended period of time, such
as during the off-season.
BOOM CONTROL VALVE:
IMPORTANT: Before performing any
maintenance, make sure line pressure is
relieved.
REPLACE VALVE O-RING'S:
1. Remove long fork and pull the valve assembly
off the valve housing.
INSPECT VALVE CONE AND O-RING'S:
See parts drawing (FIG. 8) for reference.
1. Flush the sprayer with clean water and open
all Boom Control Valves. Shut sprayer engine
off.
2. Remove fork and remove hose for the Boom
Bypass valves. When the housing is drained
make sure everything is clear from the hose.
3. Start the sprayer. There should not be any
flow of liquid through the Boom Bypass passage.
If there is any leakage, the valve O-Ring's must
be changed. Shut sprayer engine off.
FIG. 7
1879-1200
1
2
1. Flowmeter 2. Indicator Light
FIG. 8
1. O-Ring's 4. Boom Bypass Fork
2. Distribution Valve ASM 5. Boom Bypass Hose Elbow
3. Adjustment Knob
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