27Installation, Operations & Maintenance Manual
SECTION 4 - MAINTENANCE
4.1 SPARE PARTS
To avoid excessive downtime in the event of a parts
malfunction, the spare parts shown below should
be maintained in your stores to support each mRoy
pump. For your convenience, these parts can be
purchased either separately or packaged in the
form of Routine Preventive Maintenance (RPM)
Kits. RPM kit numbers are listed in Section 1,
Figure 7 (mRoy A) & Figure 12 (mRoy B).
Double quantities required for duplex pumps. Two
diaphragms are required for double diaphragm
simplex liquid ends; four are required for double
diaphragm duplex liquid ends.
4.2 RPM KIT COMPONENTS
mRoy A Metallic Liquid End
1 Relief Valve Poppet
1 Suction Check Valve
1 Discharge Check Valve Diaphragm(s) of various
sizes
2 Check Valve O-Ring
2 Split Ring
1 Ball (used on “V” high viscosity option only)
mRoy A Plastic Liquid End
1 Relief Valve Poppet
1 Suction Check Valve
1 Discharge Check Valve Diaphragm(s) of various
sizes
2 Check Valve Seals
1 Square Ring
2 Tube Coupling Nut (used on tube connection
checks only)
mRoy B Plastic Liquid End
1 Relief Valve Poppet
1 Suction Check Valve
1 Discharge Check Valve
1 Diaphragm
3 Check Valve O-ring
Parts Orders Must Include The Following
Information:
1. Quantity required (in this manual)
2. Part number (in this manual)
3. Part description (in this manual)
4. Pump model no. (on pump nameplate)
5. Pump product code (on pump nameplate)
6. Pump serial no. (on pump nameplate)
Always include the serial number, product code,
and model number in all correspondence regarding
the unit.
4.3 RETURNING UNITS TO THE FACTORY
Pumps will not be accepted for repair without a
Return Material Authorization Form, available
from the Aftermarket Department or at the
website (www.miltonroy.com). Process liquid
must be ushed from the pump liquid end, and oil
should be drained from the pump housing before
the pump is shipped. Label the unit clearly to
indicate the liquid being pumped.
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 returned to
the factory. These safety precautions will aid
the troubleshooting and repair procedure and
preclude serious injury to repair personnel from
hazardous residue in the pump liquid end.
All inquiries or parts orders should be addressed
to your local Milton Roy representative.
Representatives can be found on our website
(www.miltonroy.com).
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