Preventive Maintenance - Parker QPM3 Serie Manual De Instalación Y Mantenimiento

Catalogue HY10-6012-UM/EU
Preventive maintenance/Maintenance

Preventive maintenance

Preventive maintenance work must be carried out at regular
intervals.
Make sure that the pump:
• is free from abnormal noise or vibrations,
• is securely fixed,
• is free from leaks.
Annually: Check the electrical installation. This may only be
made by a qualified electrician.
Under normal operating conditions the pump is maintenance free.
In extreme operating conditions the pump requires inspection,
service or replacement of the pump and/or couplings.
Cleaning
Prior to cleaning the external of the pump, for instance using water,
disconnect all motor power supplies. Be aware of the electric motor
protection standard.
Parker will not be held responsible for any interference in the
pump such as internal cleaning. If the pump has been run with
contaminated oil, clean it by running it with clean oil.
Installation and servicing manual
Low pressure pump, QPM3
Maintenance
Parker will not be held responsible for any consequences after
repairs, modifications or alterations made by the customer.
Dismounting the pump and coupling from the electric
motor
See Figure 5.
1. Turn off the system.
2. Disconnect the power supply.
3. Make sure that the system is depressurized.
4. Disconnect the oil inlet and outlet.
5. Disconnect the flexible hoses from the unit.
6. Remove the screws and washers fixing the pump to the electric
motor.
7. Remove the pump and the gear rim. The pump and the
coupling details can now be replaced.
8. Loosen the stop screw (T), if any, in the shaft coupling detail.
See Figure 6 B.
Remove the shaft coupling detail from the crankshaft.
Note! Certain motors have one or more adapter plates. To
remove the electric motor, remove the screws fixing the adapter
plates to the electric motor and remove the adapter plates.
Mounting of the pump and coupling to the electric motor
See Figure 5.
Danger Electrical shock hazard. All electrical connections
must be made by a qualified electrician!
1. Fit the shaft coupling detail to the crankshaft.
Fit the stop screw (T), if any. See Figure 6 B.
2. Motor size 80: Press the shaft coupling detail onto the
crankshaft against the shoulder (R). See Figure 6 A.
3. Motor size 90, 100 and 112: Press the shaft coupling de-
tail onto the crankshaft until its outer side is in level with the
crankshaft end (S). Tighten the stop screw (T). See Figure 6 B.
4. Motor size 90: Place the adapter plates against the electric mo-
tor. Fit the screws and tighten alternately (M8 with 10–12 Nm
and M6 with 8–10 Nm).
5. Motor size 100- and 112: Place the adapter plate against the
electric motor. Fit the screws and tighten alternately (10-12 Nm).
6. Install the pump and the gear rim.
7. Install the screws with washer (8-10 Nm) fixing the pump to the
electric motor.
8. Connect the hydraulic hoses to the unit.
9. Connect the oil inlet and oil outlet.
10. Connect the electric motor power supply.
11. Proceed to Prior to start-up and At start-up.
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Parker Hannifin Corporation
Hydraulics Group