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WARNING: Do not service the MacDon Field Sprayer without instructions and taking the
necessary safety precautions. Before working on the MacDon Sprayer Attachment and
the MacDon Self-Propelled Windrower, read the Safety and Chemical Safety Instructions
at the beginning of this Manual. After making the repair or adjustment, always check to
make sure the system functions properly. Failure to obey warnings can cause death or
serious injury.
Problem
Cab Air System
Odor can be detected in the tractor
cab during normal sprayer
operations.
NOTE: It is recommended the charcoal filter be replaced at the beginning of the each season.
Spray System
Insufficient line pressure or spray
output.
The pressure gauge displays a
reading that fluctuates rapidly and
erratically during spray application.
* See your Windrower Dealer
TROUBLE SHOOTING GUIDE
Probable Cause
Refer to the Self-Propelled Windrower Operator's Manual for trouble shooting
and information on maintenance and service.
Charcoal air filter in the tractor
cab has expired or has not been
installed.
There is a major leak in the spray
system.
There is not enough hydraulic oil
flow to the pump.
Sprayer nozzle tip is plugged.
Sprayer nozzle tip is worn.
Line strainer is plugged.
Solution tank is nearly empty.
The servo valve cannot control
the flow to the booms because
sprayer pump output is too great.
80
Solution
Replace expired charcoal air
filter with new charcoal air filter.
Turn off engine and remove key.
Get out of the tractor and inspect
the spray system for leaks.
The reel speed dial is not turned
to maximum and the conveyor
speed dial is not turned to 6.
Carefully remove nozzle tip from
nozzle body and flush with clean
water.
Replace worn nozzle tip with a
new part purchased from your
local dealer or TeeJet distributor.
Remove cup and screen, flush
thoroughly with clean water.
Check solution level in tank.
Reduce the flow to the sprayer
pump by turning the reel speed
or conveyor speed dials until the
rate controller readings fluctuate
normally.
Ensure the nozzle
pressure is matched with the
application rate for the selected
nozzle tip and application speed.
Refer
to
Page
60
*
30
64
64
65
29
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