11
OPERATING INSTRUCTIONS
Cleaning the Sprayer
After use, flush the sprayer tank, and the entire
system, pump, plumbing, hoses and gun, wand or
boom with Nutra-Sol to neutralize chemicals and
reduce pump problems. Follow the instructions on
the label. Extra cleaning care should be taken after
spraying herbicides to prevent possible damage to
turf or plants when next spraying insecticides or
fungicides. After the sprayer has been flushed,
clean the in-line strainer. Hose off the outside of
the sprayer to wash off dust and dirt. Do not spray
water on the engine if it is hot.
MAINTENANCE INSTRUCTIONS
A.ENGINE MAINTENANCE SCHEDULE
Complete maintenance procedures for the engine
installed on your MTD Pro Sprayer can be found in the
engine Operating and Maintenance Instructions
furnished with the sprayer.
Daily Checks: Check, the gasoline, level. Check the
engine oil level.
After the First 5 Hours: Change the engine oil.
Every 50 Hours: Change the engine oil. Change the
oil every 25 hours if the engine is operated under
heavy load or in high ambient temperatures.
Every 100 Hours: Change the gear reduction oil.
Remove the blower housing and clean the cooling fins.
Clean the spark plug and reset the gap. Remove the
cylinder head and the cylinder head shield and remove
combustion deposits from the cylinder, the cylinder
head, the top of the piston and around the valves.
B.BATTERY
DANGER: ALWAYS WEAR SAFETY
GLASSES AND RUBBER GLOVES WHEN
WORKING ON THE BATTERY. KEEP
SPARKS AND FLAMES AWAY AT ALL
TIMES.
The battery used to operate the reel on other sprayers
should be maintained as follows.
Remove the fillcaps and check the level of the liquid
electrolyte in the battery every 50 operating hours. If
the level in any of the six cells has dropped below the
bottom of the split ring inside the fill hole, refill the cell
with distilled water. DO NOT OVERFILL THE
BATTERY. To keep the outside of the battery clean,
brush on a strong solution of bicarbonate of soda and
water and rinse with clean water. Keep the contacts
and cable ends clean with a wire brush and make sure
the connections are tight. Coat the terminals with
petroleum jelly to prevent corrosion.
C.PUMP
Diaphragm pumps require very little maintenance. The
procedures that are required are listed in the pump
Installation/Operation Instructions furnished with the
sprayer.
Daily Checks: Check the oil level. The oil must be
halfway up the sight tube. Make certain there are no
kinks in the suction line and that the suction line
connections are tight. Check the air pressure in the
pulsation damper. It should be at least 10% of the
expected operating pressure. After use, flush out the
pump. See the section on Cleaning the Sprayer
indicated above.
Every 200-Hours and at the End of Each Spray
Season: Change the oil.
At the End of Each Spray Season: Change the
diaphragms.
T o change the diaphragm s, you need a set of m etric
w renches and a set of m etric allen w renches. First,
drain the oil from the crankcase. T he larger pum ps
have a drain plug for this purpose. The sm aller pum ps
m ust be rem oved from the sprayer, the oil cap rem oved
and the pum p turned upside dow n to drain the oil.
R otate the shaft until all the oil is drained. T hen rem ove
the m anifold nuts and the head nuts. W ork on one head
at a tim e. R em ove the m anifold and the head. R em ove
the diaphragm nut, the retaining w asher and the
diaphragm . T urn the crankshaft to bring the piston to its
dow nstroke and seat the new diaphragm into the sleeve
groove. R eplace the retaining w asher and tighten the
diaphragm nut. R einstall the head. R eplace the other
head diaphragm s and then replace the m anifold. To
replace the pulsation dam per diaphragm , bleed the air
from the dam per. R em ove the bolts holding the dam per
assem bly together. R eplace the diaphragm and replace
the bolts. R echarge the dam per w ith air pressure to
10% of the expected operating pressure. R em ount the
pum p on the sprayer and refill the crankcase w ith oil.
D.AGITATOR
Most of the fiberglass sprayers have mechanical
agitation and the agitator grease fittings on the front
and rear of the tank should be greased after each 8
hours of operation. The two agitation packing gland
nuts on the front of the tank, behind the belt guard,
should be tightened as needed to eliminate dripping.
Tighten the adjusting nuts equally, 90° at a time, to
compress the packing evenly until the dripping is
stopped. Replace the packing when dripping cannot
be stopped.
