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Packing Nut Adjustment For Chemical
Valves
Examine the packing nut on all chemical valves for
proper tension every 200 hours. When turning the
knob, there should be a small amount of resistance. If
not, slightly tighten the packing nut. DO NOT over-
tighten. Keeping the valve packings properly adjusted
will eliminate possible leakage from the valve stems
and add to overall valve life.
Pressure Regulators
The pressure regulators serve to maintain water
pressure at a preset point and to bypass water back to
the water box.
Low Pressure Regulator
To adjust:
1. With your unit running, tool valve open and solution
pump on, check the pressure gauge. We
recommend setting the pressure regulator so that
the pressure gauge reads 450 PSI with the tool
valve closed.
When the tool valve is opened, there is an approxi-
mate drop of 100 PSI in pressure. If there is a
pressure drop greater than 100 PSI, it may be
necessary to lubricate the o-rings in the pressure
regulator.
2. If the pressure regulator requires adjustment, turn
the adjusting knob (while observing the pressure
gauge on the control panel) until the desired
pressure is obtained.
High Pressure Regulator (Optional)
To adjust:
Set the high-pressure regulator to desired pressure, up
to 3000 PSI. Adjust as necessary to meet your
cleaning needs.
86352170 EVEREST
Maintenance
49
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