MYERS MRGD300MC2 Installation, Operation & Parts Manual

1101 Myers Parkway
Ashland, OH 44805
Phone: 1-419-289-1144
Fax: 1-419-289-6658
Web Site: http://www.myerspump.com
Grinder Pumps
INSTALLATION, OPERATION, & PARTS MANUAL
SAFETY INFORMATION
Carefully read and follow all safety instructions in this
manual or on pump.
This is the safety alert symbol. When you see this
symbol on your pump or in this manual, look for one of the
following signal words and be alert to the potential for
personal injury!
warns about hazards that will cause serious
personal injury, death or major property damage if ignored.
warns about hazards that can cause serious
personal injury, death or major property damage if ignored.
warns bout hazards that will or can cause
minor personal injury or property damage if ignored.
The word NOTICE indicates special instructions which are
important but not related to hazards.
1. Read these rules and instructions carefully. Failure to
follow them could cause serious bodily injury and/or
property damage.
2. Check your local codes before installing. You must com-
ply with their rules.
3. Vent sewage or septic tank according to local codes.
4. Disconnect electrical power and keep hands away from
pump inlet opening when working on or handling pump
for any reason. Do not use automatic reset controls with
this pump. Accidental rotation of the cutter with hands in
the cutter area can cause severe injury.
5. Always keep pump properly serviced and maintained.
6. Use pump for designed task – that is, pumping domestic
sewage and waste water containing solids. Do not pump
metal particles, rocks, or other hard objects.
7. Do not pump corrosive or flammable liquids with this
pump.
© 2005
Models MRGD300MC2,
MRGD300MC3, MRDG500MC2,
MRDG500MC3 and MRGD750MC3
DESCRIPTION
These submersible wastewater pumps are designed for
sewage, effluent and wastewater removal or transfer, sump
drainage, dewatering, flood control and for circulation.
Pumps include internal circuitry that detects seal leakage
and overheating of windings. Other options available include
lift-out system components, control panels, switches and
alarms. Not for use with salt water or brine.
SPECIFICATIONS
Power Supply Required: . . . . . . . . . . . .230/1Ø - 230/460/3Ø
Motor Duty: . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Intermittent
Maximum Liquid Temperature: . . . .1 Phase - 40° C (104° F)
Discharge Adapter: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2"
Power Cable: . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Type STO
Volute, Impeller and Pump Body: . . . . . . .Class 30 Cast Iron
O-Rings and Elastomer Part of Shaft Seal: . . . . . . . .Buna-N
Shaft Seal Faces: . . . . . . . . . . . . .Carbon and Ceramic with
Fasteners in contact with liquid
being pumped: . . . . . . . . . . . . . . . . . . . . . . . .Stainless Steel
Grinder Assembly: . . . . . . . . . . . . . . .17-4ph Stainless Steel
3 Phase - 60° C (140° F)
Stainless Steel Trim
MY500 (Rev. 4/18/05)