SECTUION 4
MAINTENANCE
SPARE PARTS
The following spare parts should be stocked for each pump to prevent serious delays in repairs. Refer to
Figures 6-1~ 6-18 and to the accompanying parts lists.
Parts orders must include the following:
1. Quantity required
2. Part number
3. Part description
4. Pump serial number (found on nameplate)
5. Pump model number (found on nameplate)
6. Pump product code (found on nameplate)
Always include the serial number, model number, and product code in all correspondence regarding the unit.
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 before the pump is shipped.
NOTE:
A completed Material Safety Data Sheet (MSDS) 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 Materials
Safety Data Sheet must accompany all returns.
All inquiries or parts orders should be addressed to your local Milton Roy representative or distributor.
PREVENTIVE MAINTENANCE
Milton Roy pumps are carefully designed, manufactured, assembled, and quality tested to give reliable
service with minimal maintenance. However, a weekly maintenance check is recommended to visually
confirm proper operation of the pump.
Drive
Initially, change gear drive oil after the first 250 hours of operation. Then change drive oil after every 4000
hours of operation or every six months, whichever comes first.
Diaphragm Assembly
The Series G diaphragm assembly should be replaced every 4000 hours of operation to avoid the
possibility of failure. Refer to the instructions in the "Corrective Maintenance "section.
Oil Seal
The Series G oil seal should be replaced every 4000 hours of operation to avoid the possibility of failure.
Oil seal replacement requires the removal of the diaphrag m assembly, so it is recommended that the oil seal
and diaphragm assembly be replaced at the same time. Refer to the instructions in the "Corrective
Maintenance "section.
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