Brandt SB4000, Operator'S Manual

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51
4 PLUMBING CONTROLS
1. Tank Shut Off Valve
This valve controls the main flow from the tank sump to
the pump. The valve is open fully while in operation and
closed fully when the machine is left sitting or unhooked.
2. Pump Shut Off Valve
This valve controls the water direction when filling the
tank using the sprayer pump. This valve is fully open
when filling the tank with a pump on the nurse tank or
while in operation and closed when filling the tank using
the sprayer pump.
3. Agitation Valve
This valve controls the flow to the agitators. Open the
valve to allow flow to the tank agitators. Closed the
valve fully when the machine is left sitting or unhooked.
When increased spraying pressure is required, the
agitation valve can be adjusted to reduce the flow to the
agitators.
4. Throttling Valve
This valve is used to adjust the amount of flow going to
the spray pipes. Open the valve fully to allow maximum
flow to the spray pipes and while filling the tank when
using the sprayer pump.
The valve helps to reduce the amount of return flow that
goes through the pressure regulating valve. It can be
adjusted to have approx. 30 psi additional pressure at
the spray pipe when the pressure regulating valve is fully
closed. The pressure regulating valve is then used to
lower the spray pipe pressure to the desired amount.
5. Pressure Regulating Valve
This is the electrically controlled regulating valve which
is used to control the spray pipe pressure.
6. Transfer Valve
This valve is used to direct flow when filling the tank
using the sprayer pump. This valve is normally closed
and is only open when filling the tank using the sprayer
pump or while using the optional Handler chemical filling
system when filling the tank using the sprayer pump.
7. Bottom Fill Valve
This valve allows fluid from an external source to be
pumped into the main tank with the sprayer pump or a
nurse tank pump.
IMPORTANT : Never run a centrifugal pump dry for
more than a few seconds or the
mechanical seal will be damaged. If
the pump does not prime or runs out of
fluid, shut it for immediately.
IMPORTANT : To prevent accidental spraying or
sprayer pump damage, always transport
the sprayer with the pump drive
DISENGAGED.
It is recommended that all operators review this section of the manual to familiarize
themselves with the location and function of all plumbing controls before starting.
4.1 PLUMBING COMPONENTS