Verifying The Rotation Of The Motor; Shutting Down The Pump; Maintenance; Recommended Maintenance Schedule - Dometic P062 Installation And Operation Manual

Maintenance

6 .3 Verifying the Rotation of the
Motor
1. Allow the motor to run for 1-2 seconds and observe
the rotation of the motor fan.
2. Refer to the directional arrow molded into the pump
casing or the rotational sticker at the rear of the pump
motor. If the motor rotation direction matches the
direction the arrows are pointing, rotation is correct.
If the rotation is incorrect, check the wiring diagram
on the pump and resolve wiring issues.
I A pump running backwards will pump but at a
greatly reduced flow and pressure.

6 .4 Shutting Down the Pump

1. Turn off the motor.
2. Slowly close the discharge valve.
3. Close the suction valve.
7 Maintenance
NOTICE: Failure to properly maintain the pump may
void the warranty and could result in unsafe operation.
Preventive maintenance is not covered under the
warranty.
NOTICE: Before performing maintenance on this pump,
it must be flushed and drained of all fluids.
The following maintenance and cleaning instructions
should be performed at the intervals indicated, or as
needed, depending on the use of the pump.
7 .1 Recommended Maintenance
Schedule
The recommended maintenance schedule depends
upon the nature of the fluid being pumped and the
specific application.
• If the pump is used on a clean fluid, remove the pump
from service and perform an inspection after six
months, or after 2,000 hours of operation.
10
• If the pump is used on fluids with solids, high
temperatures, or other items that could cause
accelerated wear, then this initial examination should
be sooner.
• For the best results, remove the pump from service at
least annually for disassembly and inspection.
After the initial examination of the internal components
and wear items are measured, a specific maintenance
schedule can be determined.

7 .2 Flushing and Draining the Pump

I Drain the pump of fluids to remove internal pressure
before performing maintenance.
1. Follow the proper shut down procedure. Refer
to "Shutting Down the Pump" on page 10 for
instructions.
2. Connect the flushing fluid supply to the inlet valve.
3. Connect the flushing fluid drain to the discharge
valve.
4. Open the flushing inlet and discharge valves.
5. Direct the flushing liquid into the system until the
pump is clean.
6. Stop the flow of flushing liquid and allow the pump to
drain of all fluids.
Magnetic-Drive Centrifugal Pump
EN