Hale RSD - Manual (Page 41)

41 Section 3: Operating
Hale Products, Inc., Nov.2005, Rev-A
O p er atio n
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2. Turn the handwheel slowly counterclockwise until the relief valve opens.
The pilot light illuminates and the master pressure gauge drops a few PSI
(BAR).
3. Turn the handwheel slowly clockwise until the master pressure gauge rises
to the desired pressure and the pilot light goes out. The relief valve now
operates at the set pressure.
4. When the pump is not in operation, turn the handwheel clockwise to a posi-
tion slightly above the normal operating pressure. When the pump is put
into operation again, reset the valve to the desired operating pressure.
More complete and detailed information is found in the relief valve manual.
TPM Relief Valve Procedures
Note: Be sure to select the correct procedure, according to the relief valve in your
system.
1. Set the pressure indicator on the PMD control valve to a position slightly
above the normal operating pressure (even before water starts to flow).
2. After normal operating pressure is achieved (as indicated on the master
pressure gauge while the pump is discharging water), slowly move the
adjusting handwheel counterclockwise until the relief valve opens.
3. The AMBER indicator light illuminates. (See
Figure 3-3: “TPM / PMD Relief Valve Con-
trol.”)
4. Turn the handwheel slowly clockwise until
the light goes out. The relief valve now oper-
ates at the set pressure.
5. When the pump is not in operation, turn the
handwheel clockwise to a position slightly
above the normal operating pressure. More
complete and detailed information is found in
the relief valve manual.
CAUTION !
THE PRESSURE INDICATOR ON THE PANEL IS
ONLY A ROUGH INDICATION OF TPM SETTING.
ALWAYS USE THE PRECEDING PROCEDURE TO
PROPERLY SET THE TPM RELIEF VALVE SYSTEM. Figure 3-3: TPM / PMD
Relief Valve Control