Installation and servicing manual
Low pressure pump, QPM3
9
Parker Hannifin Corporation
Hydraulics Group
Catalogue HY10-6012-UM/EU
Introduction/Safety instructions/Description
Introduction
The purpose of this manual is to serve as a reference guide for
installation, maintenance and operation of the QPM3 low pres-
sure pump.
Keep the manual at hand. A lost manual should be replaced as
soon as possible.
For optimum performance and in order to prevent incorrect use,
please read this manual carefully and observe all safety precau-
tions prior to putting the QPM3 low pressure pump into service.
Installation and maintenance work should only be carried out by
qualified personnel. Parker reserve the right to make technical al-
terations without prior notice.
Use
The QPM3 low pressure pump is designed to circulate oil in
for instance hydraulic systems and gear boxes. The QPM3 low
pressure pump is also suitable as part of systems for filling and
draining of tanks.
Warranty and claims
In the event of malfunction, consult your local Parker office. Parker
shall not be held responsible for any consequences due to modifi-
cation and/or alterations made by the customer.
Safety instructions
The installation contractor as well as the user should be aware
of, understand and observe all safety precautions in this manual,
including any information mentioned on labels attached to the
product.
Definition of Safety Warning Levels…
…concerning personal safety
All precautions concerning personal safety are classified as per
below, depending on how severe the consequences of an inci-
dent could be.
Danger
This alerts you to an action or procedure that, if
performed improperly,
will produce
bodily harm or death.
Caution
This alerts you to an action or procedure that, if
performed improperly,
is likely to
produce bodily harm or
death.
Precaution
This alerts you to an action or procedure that,
if performed improperly,
is likely to
cause an accident with
bodily harm.
...concerning other safety issues
Notifications concerning other safety issues (property, process or
environmental) and maintenance work are classified as follows:
Important
This alerts you to an action orprocedure that, if per-
formed improperly,
is likely to
result in damage to the product,
process or environment.
…concerning additional information
Additional information is marked as follows:
Note!
This alerts you to important information related to the text
in a paragraph.
Overall instructions
Danger
Electrical shock hazard. All electrical connections
must be made by a qualified electrician!.
Caution
Risk of bodily injury. Disconnect the motor
power supply prior to maintenance.
Caution
Risk of bodily injury. Before disconnecting the
hydraulic connections and hoses, make sure that the
system is depressurized.
Caution
Risk of severe burns. As the pump could
become extremely hot during operation, make sure that
the pump is cool before touching.
Caution
Risk of severe burns. Hose rupture or other
failure could cause hot oil to squirt out.
Precaution
This indicates a toxic hazard. To prevent
bodily injury and damage to property or environment,
used oil should be collected according to specific
industrial waste regulations of each country.
Precaution
Risk of slip and fall accidents and damage
to property. If the unit is used as foot plate there is a risk
for slip and fall accidents and the unit can be damaged.
Do not step on the unit.
Note!
Use hearing protection when standing close to an
operating pump for long periods of time.
Environmental information
To prevent personal injury and damage to the environment:
Disassemble and sort all material for reuse and/or recycling.
Make sure that hazardous waste is collected for disposal.
Used material, components and products should be collected and
handed over to public waste collection points. Check local rules
and regulations with local authorities or with your nearest recycling
station.
Description
The QPM3 gerotor type of low pressure pump is equipped with
electric motor, double bearing shaft and flexible coupling.
The gerotor principle is based on an inner and an outer rotor. The
inner rotor has one less tooth than the outer. The inner rotor has
its centreline positioned at a fixed eccentricity from the centreline
of the outer rotor. As the rotors rotate about their own respective
axes oil is drawn into the enlarging chamber. The process occurs
constantly for each chamber, providing a smooth pumping action.
QPM3 low pressure pump comes as standard with pump flow
10, 20, 40, 60 and 80 l/min.
Sign
The sign specified below is attached to the QPM3 low pressure
pump at delivery.
See Figure 1.
• Caution! Do not step on the unit! High temperature surfaces!
A
– P/N.
B
– Designation.
C
– Designation