2
Installation Instructions
Operation and Maintenance
Check oil level prior to starting and ensure
trouble-free water supply. Oil: Use only 23.7
ounces (0.7 liters) of Giant’s part number
01154 or ISO VG 220 GL4 (e.g. Aral Degol
BG220) or SAE 90 GL4 gear oil.
Initial change after 50 operating hours and
then every 500 operating hours, after 6
months operation in any case.
Caution!
When operating in damp places or
with high temperature fluctuations, oil must
be changed immediately, should condensate
(frothy oil) occur in the gear box.
Keep NPSH under control.
Maximum input pressure 145 PSI (10 bar)
Maximum suction head -4.35 PSI (-0.3 bar).
Safety Rules
Pump operation without safety valve as
well as any excess in temperature or speed
automatically voids the warranty . The safety
valve must be regulated in accordance with
the guidelines for liquid spraying units so that
the admissible operating pressure can not be
exceeded by more than 10%.
When the pump is in operation, the open
shaft end must be covered up by shaft pro
-
tector (17), the driven shaft side and coupling
by a contact protector.
Pressure in discharge line and in pump must
be at zero before any maintenance to the
pump takes place. Close up suction line.
Disconnect fuses to ensure that the driving
motor does not get switched on accidently.
Make sure that all parts on the pressure side
of the unit are vented and refilled, with pres-
sure at zero, before starting the pump.
In order to prevent air, or an air/water-mixture
being absorbed and to prevent cavitation oc
-
curring, the pump-NPSHR, positive suction
head and water temperature must be kept
under control.
Cavitation and/or compression of gases
lead to uncontrollable pressure-kicks
which can ruin pump and unit parts and
also be dangerous to the operator or any-
one standing nearby.
Giant Plunger Pumps are suitable for pump
-
ing clean water and other non-agressive or
abrasive media with a specific weight similar
to water.
Before pumping other liquids - especially
flammable, explosive and toxic media -
the pump manufacturer must, under all
circumstances, be consulted with regard
to the resistance of the pump material.
It is the responsibility of the equipment
manufacturer and/or operator to ensure
that all pertinent safety regulations are
adhered to.
