Prochem Legend SE AD - Manual (Page 28)

OPERATION
LEGEND SE 980059 06/19/03 3-20
PRIMING THE CHEMICAL PUMP
NOTE: Prochem recommends that the chemical
pump be primed whenever the water pump is ON.
This will eliminate possible pressure fluctuations and
water pump pulsation’s related to a dry chemical
pump.
1. Place the chemical inlet tube and the chemical
prime tube into the chemical container.
NOTE: When placing the chemical inlet tube into
the chemical container, make certain that it stays
fully submerged since the chemical pump will not
function if air is allowed to enter the inlet line. DO
NOT operate the chemical pump without the inlet
strainer properly installed.
2. Turn the chemical selector valve on the control
panel to the PRIME position. The chemical will
then flow from the chemical container through the
chemical prime tube.
If the chemical does not flow, then:
a. Put the chemical prime tube into the vacuum
inlet on the unit and seal off the vacuum inlet.
The vacuum will quickly pull chemical from the
chemical container. When the chemical starts to
flow, turn the chemical selector valve to OFF,
place the chemical prime tube back into the
container, and turn the chemical selector valve
back to PRIME to continue the procedure.
b. Once continuous chemical flow without air
bubbles has been achieved, turn the chemical
selector valve from PRIME to METER. With the
cleaning tool open, observe the flow meter and
adjust the chemical metering valve until the
desired rate of chemical flow is obtained (the
chemical metering valve is located on the
control panel below the temperature control.)
WASTE PUMP
1. If your unit is equipped with an automatic waste
pump, connect one end of a garden hose to the
pump-out connection on the console and the
other end to an appropriate waste disposal.
2. Turn the pump-out switch on the control panel
to the ON position. The waste pump will operate
automatically throughout the cleaning operation.
We recommend that you use a 3/4" I.D. water
hose as a waste pump outlet hose. DO NOT use
a hose smaller than 5/8" I.D.
NEVER use your automatic waste pump outlet hose
as a water inlet hose.
NEVER dispose of waste in storm drains, water
ways, or on ground areas. Always dispose of
waste in accordance with Local, State, and
Federal laws.
OPERATION
Once you have completed steps 1 through 10,
proceed with the cleaning operation. Your unit should
be in the full throttle position when cleaning or
extracting. A float switch located inside the waste
tank will automatically shut down the unit when it
reaches its full capacity. When this occurs, empty the
waste tank before continuing.
EXHAUST DIVERTER VALVE
The automatic exhaust diverter valve directs
exhaust through either:
a. The high temperature heat exchanger or through
the muffler. This is fully automatic and is
controlled through the temperature setting dial for
cleaning operations.
b. Set temperature control to desired temperature or
for flood extraction set to 50°.