500XOPTRS 34 2008
DUST CONTROL (WATER) SYSTEM
The dust control system is designed to control the dust created by the operation of the sweeper
under normal sweeping conditions. The dust control system (often referred to as the water sys
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tem) is only effective when the sweeper is operation properly. Problems such as damaged or
worn door seals, worn pick-up head curtains, holes in the suction/pressure hoses can cause
extremely dusty conditions that cannot be controlled by a properly functioning dust control sys
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tem.
Water Tank Liquid Level Sensor
The liquid level sensor provides water pump protection when the water level in the tank be
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comes depleted. The sensor will cause the water pump clutch to turn OFF if the tank level is
low. The low water indicator light on the light indicator module will turn ON when the water tank
level is low.
Spray Nozzles
One high volume nozzle is located in the suction inlet of the hopper. There are spray mist noz
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zles located just in front of each gutter broom and on each side of the pick-up head to minimize
airborne dust.
Operation
1. Fill the 250 gallon water tanks using the 2-1/2” fire hose provided with the sweeper.
The filler port is located on the right (curb) side of the sweeper. Located inside of the
fire hose on the hydrant side is a cone shaped water strainer. Do not loose this.
2. Always purge the fire hydrant before attaching the fire hose to fill the tank. The tank
is full when water is observed spilling over the side of the tank. The TYMCO tank fill-
ing system is an anti-siphon system as water is put into the tank from the filler neck
on top of the tank. At the end of the shift, open drain valve to flush the tank.
3. Start the auxiliary engine, lower pick-up head and pull forward.
4. Turn the water system toggle switch ON.
5. Increase the blower rpm. (Water conservation – blower must be ON for water system
to turn on)
6. Turn on the desired water switches.
Recommended Service
There are essentially four service areas for the water system:
1. Water Tank
2. Pre-Filter
3. Water Pump
4. Spray Nozzles
Service these areas routinely according to the following directions:
1. Water Tank – The water tank should be flushed at the end of each shift to remove con-
taminants. Fill tank and then allow it to drain.
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