15
Instruction Manual
SECTION 4 - MAINTENANCE
4.1 RECOMMENDED SPARE PARTS
To avoid delays in repairs, a Routine Preventative
Maintenance Kit should be ordered for each pump.
The RPM kit contains an oil strainer and check
valve parts. Part orders must include the following
information:
1. Quantity required.
2. Part Number.
3. Part Description.
4. Pump serial number (found on pump
nameplate).
5. Pump model number (found on pump
nameplate).
6. Pump product code (found on pump
nameplate).
Always include the serial number, model number,
and product code in all correspondence regarding
this unit.
4.2 SHIPPING PUMPS FOR REPAIR
Pumps can not be accepted for repair without a
Return Material Authorization. Pumps should be
clearly labeled to indicate the liquid being pumped.
Process liquid should be flushed from the pump
liquid end and oil should be drained from the pump
housing and displacement chamber. To drain oil
from the displacement chamber, unscrew the refill
valve body (660,
figure 8
) from the displacement
chamber. Allow oil to drain into a waste container.
Remove diaphragm (510) and tilt up the back of
the pump until oil ceases to drain from the front of
the pump.
Note:
Federal law prohibits handling of equipment
that is not accompanied by an OSHA Safety
Data Sheet (SDS). A completed SDS must be
packed in the shipping crate with any pump
shipped for repair. These safety precautions will
aid the troubleshooting and repair procedure
and preclude serious injury to repair personnel
from hazardous residue in pump liquid end.
A Safety Data Sheet must accompany all
returns.
All inquiries or parts orders should be addressed to
your local Milton Roy representative or distributor.
4.3 ROUTINE PREVENTATIVE
MAINTENANCE
BEFORE ANY MAINTENANCE,
RELIEVE ALL PRESSURE
FROM SYSTEM, ISOLATE LIQUID END FROM ALL SOURCES
OF PROCESS LIQUID WITH APPROPRIATE VALVING, AND
PURGE LIQUID END OF ALL PROCESS LIQUID.
4.3.1 Oil Replacement
Initially, change oil in pump casing after the first
250 hours of operation. Then change oil after
every 4000 hours of operation or every six months
whichever comes first. Oil can be drained by
removing the drain plug (20,
figure 6
). When oil
has finished draining, make sure that the area
around the drain hole is clean. Screw drain plug
back in securely. Fill the pump housing with
the recommended oil until the level is between
the top two marks on the dipstick.
DO NOT
OVERFILL(above top mark)!
Replace the oil
fill cap and screw firmly in place. Dispose of oil
according to any federal, state or local codes which
may apply.
Note:
It is not necessary to purge the liquid end
displacement chamber of oil during annual oil
replacement.
