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Maintenan e
Booms
8 HOURS
• Grease tilt arm pivot pins.
• Grease cable drum bearing block pivots.
25 HOURS
• Grease cable adjuster pivots.
50 HOURS
• Grease boom mount rose ends.
• Grease all delta links on centre section.
• Grease paralift arm rose ends.
ADJUSTING PARALIFT BOOM RIDE HEIGHT
SWITCH
The ride height switch is used to adjust the minimum
boom height. The switch is located on the bottom of
the left hand side of the boom paralift.
To adjust the switch:
1. Loosen the two adjustment knobs on ride height
bracket
2. Lowering the switch lowers the minimum boom
height. Raising the switch raises the minimum
boom height.
3. Each notch gives approximately 100 mm of boom
height adjustment.
4. Tighten knobs once adjusted. The hydraulic
cylinders must have 50 mm of travel remaining.
Filters
CAUTION: Read and heed the chemical label
warnings regarding PP before cleaning any filter.
If in line filters have been fitted to replace no le
filters, always unfold and lower the boom before
attempting to unscrew any filter.
It is essential to maintain all filters and filter screens
in good condition. Filter screens that are not
regularly cleaned can severely impede li uid flow
and delivery pressure. If the screens are in anyway
damaged, they can allow foreign material into the
pumping system which can result in damage to the
pump, solenoids, valves and cause blockages in nozzle
tips. Also, if the screens are not properly fitted, air
can enter the pumping lines which will reduce pump
performance.
Filter screens are best cleaned with a soft brush in
clean water or by compressed air after washing.
104 - Chapter 10 - Lubrication & Maintenance
eneral
SUCTION FILTER CLEANING
CAUTION: Wear gloves and other recommended
protective clothing.
1. Ensure that the pump is turned OFF and the
2. Carefully unscrew filter nut and remove bowl.
3. Remove screen and clean.
4. Check for damage to screen, bowl, body and
5. Place screen back in position.
6. Make sure O-ring is in position for proper seal.
7. Replace bowl and screw nut on. Do not over-
PRESSURE FILTER CLEANING
CAUTION: Wear gloves and other recommended
protective clothing.
1. Ensure that the pump suction is turned OFF
2. Ensure that the supermix agitator ball valve is
3. Carefully unscrew filter nut and remove.
4. Remove screen and clean.
5. Check for damage to screen, bowl, body and
6. Place screen back in position.
7. Make sure O-ring is in position for proper seal.
8. Replace bowl and screw nut on. Do not over-
pump three-way ball valve is turned OFF to
prevent flow to the filter.
O-ring.
tighten nut.
and the pump 3-way ball valve is turned OFF to
prevent flow to the filter and pump.
OPEN (will release any residual pressure. Also
remove small cap on bottom of pressure filter to
relieve pressure)
O-ring.
tighten nut.
Prairie Pro Operator's Manual MY19 - REV 2
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