2008 35 500XOPTRS
2. Pre-Filter – A pre-filter is located between the tank and water pump to remove any con-
taminants before they reach the pump. The pre-filter has a removable cleanout bowl
which should be removed and cleaned once a day. USE CARE NOT TO LOSE THE
BOWL GASKET WHEN CLEANING OR WATER SYSTEM WILL NOT WORK COR-
RECTLY DUE TO AIR LEAK.
3. Water Pump – see Winterization
4. Spray Nozzles – The operator is responsible for keeping the spray nozzle tips clean
and spraying.
ATTENTION: It is important to use only the correct flow rated spray tips in order
to realize proper water system spray time and pressure.
a. If a spray nozzle is clogged, the entire tip assembly must be removed for cleaning.
To clean tip, use the edge of a knife or razor to clear tip spray slot. Then grasp the
tip between the index finger and thumb with slotted side facing up and strike the tip
sharply against a clean, hard surface to dislodge blockage.
DO NOT USE A DRILL TO MAKE THE ORIFICE LARGER!!!
b. To re-install tip, insert tip into cap and hand tighten cap to nozzle assembly. Hold tip
in desired position with the use of pliers in one hand. With the other hand, use a
wrench to tighten the cap which locks tip position.
Note: All nozzles should be checked daily for clogging. To check the hopper water nozzle, fol-
low procedure below.
Water Test Mode Procedure
1. Start auxiliary engine.
2. Open the chute and dump door.
3. Turn the water system toggle switch ON, and all water nozzle switches.
4. Engage the blower rpm switch in the UP position for a minimum of 2 seconds.
NOTE: The engine speed will increase to 1800 rpm, and the hopper water will begin to
flow.
5. To end Water Test Mode, close the dump door and chute, or turn off the water system
switch.
Winterization
To winterize the Model 500X water system, the system should be filled with solution of propyl
-
ene glycol. Follow procedure outlined below:
1. Turn OFF water supply ball valve next to water pre-filter.
2. Disconnect the suction side hose of the water strainer.
3. Submerge end of hose into container of propylene glycol.
4. Start auxiliary engine.
5. Perform the steps of the Water Test Mode procedure.
6. Let the water pump run until propylene glycol is observed to spray from nozzles.
7. Turn water system off and drain water tank.
8. System is now winterized.
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