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3. Once the original position of the actuator is recovered,
close the manual relief valve. Torque the valve to
1.1-2.1 ft-lb (1.5-2.9 N⋅m).
Inspecting the Nylon Pivot
Bushings
Service Interval: Every 400 hours/Yearly (whichever comes
first)
1. Position the sprayer on a level surface, set the parking
brake, stop the pump, stop the engine, and remove the
ignition key.
2. Extend the booms to the spray position and support
the booms using stands or straps from a lift.
3. With the weight of the boom supported, remove
the bolt and nut securing the pivot pin to the boom
assembly (Figure 53). Remove the pivot pin.
1
2
4
Figure 53
1. Pivot pin
2. Bolt
3. Nut
4. Remove the boom and pivot bracket assembly from
the center frame to access the nylon bushings.
5. Remove and inspect the nylon bushings from the front
and back sides of the pivot bracket (Figure 53). Replace
any damaged bushings.
6. Place a small amount of oil on the nylon bushings and
install them into pivot bracket.
7. Install the boom and pivot bracket assembly into the
center frame, aligning the openings (Figure 53).
8. Install the pivot pin and secure it with the bolt and nut
removed previously.
Repeat the procedure for each boom.
4
5
3
G002017
4. Nylon bushing
5. Pivot bracket
Cleaning
Cleaning the Flowmeter
Service Interval: Every 200 hours/Yearly (whichever comes
first) (More often when using wettable
powders)
1. Thoroughly rinse and drain the entire spraying system.
2. Remove the flowmeter from the sprayer and flush it
with clean water.
3. Remove the retainer ring on the upstream side
(Figure 54).
8
7
6
5
1. Modified flanged body
2. Rotor/ magnet assembly
3. Hub/ bearing assembly
4. Hub assembly (with
keyway up)
5. Retaining ring
4. Clean the turbine and the turbine hub to remove metal
filings and any wettable powders.
5. Inspect the turbine blades for wear.
Note: Hold the turbine in your hand and spin it. It
should spin freely with very little drag. If it does not,
replace it.
6. Assemble the flowmeter.
7. Use a low pressure (5 psi or 50 kPa) air jet to ensure
that the turbine spins freely. If it does not, loosen the
hex stud on the bottom of the turbine hub by 1/16 of
a turn until the turbine spins freely.
Cleaning the Suction Strainer
Service Interval: Before each use or daily
1. Position the sprayer on a level surface, set the parking
brake, stop the pump, stop the engine, and remove the
ignition key.
44
4
1
9
2
3
G012934
Figure 54
6. Turbine stud assembly
7. Cable clamp
8. Thread screw
9. Sensor assembly
10. Flow-reducing sleeve
5
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