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PREVENTIVE MAINTENANCE:
LEAKS:
Promptly eliminate any leaks found in the pumping system by removing
suspect parts, applying thread sealant to the threads and reinstalling.
NOTE: If using teflon tape, be certain no tape gets inside any plumb-
ing to prevent the possibility of a plugged spray nozzle.
QUICK COUPLERS:
There are o-ring seals inside the couplers which will deteriorate. To re-
place, simply install a replacement o-ring to correct the leak. (See illustra-
tion #16) (Additional o-rings can be purchased from your dealer.)
NOZZLE:
Water flow through the spray nozzle will erode the orifice, making it larger,
resulting in a pressure loss. Nozzles should be replaced whenever pres-
sure is less than 85% of the maximum. The frequency of replacement will
depend upon such variables as mineral content in the water and number
of hours the nozzle is used.
PUMP:
1. Change the pump oil after the first 50 hours of operation. After initial
change, every 3 months or 250 hour intervals are recommended. If oil
appears dirty or milky, changes may be required in greater frequency.
2. Locate the pump oil drain hose.
3. Use an empty container to catch the oil and remove the plug from the
drain line. (See illustration #17)
4. Let all the oil drain from the pump and replace drain plug. Dispose of
used oil according to local, state and national regulations.
5. Fill the pump crankcase to the notch on the dipstick with pump oil
SAE20 or 30 non-detergent. Do not overfill.
BELT TENSION:
Ensure unit is off. Remove the side panel or lift lid to inspect the v-belt
for wear and tightness. If the v-belt needs to be replaced or tightened,
follow the procedures listed below and see illustration #18.
Replacement:
1. Loosen the four pump mounting bolts (A).
2. Loosen the two alignment nuts approximately one inch on the alignment
bolts (B1 & B2).
3. Slide the pump toward the motor to loosen belts.
4. Remove and replace belt.
Tighten: (If v-belt was not replaced, you will need to loosen the nuts on
the alignment bolts B1 and B2 before proceeding.)
1. Tighten B2 alignment bolt. The pump will shift to the left until there is
tension on the belt. Then tighten B2 nut.
2. Tighten B1 alignment bolt, until sheaves are straight. (Use a straightedge
for alignment.)
3. Push on the v-belt to check belt deflection for tension. There should
be 1/4" to 1/2" deflection for correct tension.
4. If sheaves are straight and tension is correct, tighten B1 nut and the
four pump mounting bolts (A).
5. If tension is not correct, repeat steps 6 and 7 until correct alignment and
tension is achieved. Tighten the four mounting bolts (A) when completed.
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MAINTENANCE
Illustration #16 Quick Couplers
Illustration #17 Pump Oil Drain
Illustration #18 Belt Tension Adjustment
Operator's Manual
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