Spray System Maintenance - MacDon 625 Operator's Manual

Spray System Maintenance

WARNING:
Protective gloves should be worn
whenever
contaminated material. Protective gloves must
be unlined materials,
polyethylene, or neoprene.
PESTICIDE LABELS FOR DIRECTIONS ON
PROTECTIVE CLOTHING TO BE WORN WHILE
HANDLING A PESTICIDE.
WARNING:
spray tank and system should be
emptied of chemical mixture and
flushed with clean water before servicing the
spray system.
WARNING:
system hoses may contain pressure
and cause the chemical mixture to
come in contact with the operator. CHECK THE
PESTICIDE LABELS FOR DIRECTIONS ON
PROTECTIVE CLOTHING TO BE WORN WHILE
HANDLING A PESTICIDE.
1. Centrifugal Pump
The Hypro centrifugal pump can be serviced easily
and quickly by replacing the wearing components
using the seal kit suggested in the parts book. To
replace the seal kit requires disassembling only the
pump head of the unit.
2. Nozzle Tips
A leaking nozzle indicates diaphragm check valve
in the nozzle body is damaged or not aligned
properly, a bad or damaged gasket, seat, retainer
or cap. When the problem is identified and cannot
be corrected, purchase a replacement part as
required from your local
distributor. If reduced flow is noted in any of the
nozzles, remove the cap and check the nozzle tip.
MAINTENANCE/SERVICE
AVOID INJURY!
handling pesticide
made of rubber,
CHECK THE
AVOID INJURY! The
AVOID INJURY! Spray
dealer or TeeJet
TeeJet 80-02 Extended Range nozzle tips are
installed at the factory. A 50-mesh screen is part
of the nozzle assembly. Installing a different type
of nozzle tip requires a set of screens, caps, and
rubber gaskets as well.
Follow the procedure for rinsing the main tank at
the end of each day on page 33 prior to removing
the nozzle tips. Rinsing the main tank will ensure
the minimum amount of chemical residue remains
in the spray system.
screens, and gaskets thoroughly and rinse the
nozzle caps with clean water. Use a soft brush to
clear the nozzle tips and screens from debris and
obstruction. NEVER try to clean a nozzle tip or
screen by blowing on it with your mouth.
NOTE: When reassembling the screen and
cup onto the spray system, slide the screen into
place prior to installing the filter cup.
same procedure when it is necessary to replace
the O-ring seal.
When changing to different chemicals, the nozzle
caps, screens, gaskets and nozzle tips should be
rinsed clean using the same solutions outlined on
page 34. Follow the procedures for cleaning the
main tank. DO NOT dispose of the wash water in
the main tank until any debris can be separated
from the wash water.
Consult with your state or local environment
department and the chemical manufacturer
regarding the disposal of small quantities of
chemicals, chemical containers and wash
water.
3. Spray System Hoses
After 10 hours of operation, check all bolts and
hose clamps for tightness.
connections for leaks. Check all hoses for chafing
or rubbing on frame and body members. Replace
damaged hoses if necessary.
4. Sprayer Plumbing
Check for leaks on the sprayer plumbing system at
the beginning and during the spray season.
Tighten plastic fittings to repair a leak. Do not
over tighten plastic fittings. Replace cracked
and damaged fittings.
A sealant such as Rectorseal on the threads of the
plastic fitting could be used to repair leaks in the
plumbing system.
64
Wash the nozzle tips,
Use the
Check all hose