STA-RITE MSC-7 User Manual

16 pages

To Next Page

To Next Page

Page #1 background image

Loading...

Page #1 background image

OWNER’S MANUAL

Multi-Stage Deep Well Jet Pumps

20

100

80

60

40

©2001, Sta-Rite Industries, Inc. PRINTED IN U.S.A. S757-1 (Rev. 10/31/01)

293 Wright Street, Delavan, WI 53115

“MS” Series

Installation/Operation/Parts

For further operating, installation, or maintenance assistance:

Call 1-262-728-5551

Table of Contents

Questions and Answers:

B
browningmichelleAug 12, 2025
How to fix a STA-RITE MSC-7 Water Pump motor that won't start?
- E
  Elizabeth CookAug 12, 2025
  If your STA-RITE Water Pump motor isn't running, start by checking if the disconnect switch is on. Then, see if a fuse is blown or a circuit breaker has tripped and replace the fuse or reset the breaker if needed. Also, the starting switch might be defective, in this case disconnect the power and replace the starting switch. Loose, disconnected, or incorrectly wired wires at the motor could also be the cause; disconnect the power and check and tighten all wiring. Lastly, dirty pressure switch contacts can prevent the motor from running; disconnect the power and file the contacts with an emery board or nail file.
R
Renee BryantAug 22, 2025
Why am I getting air spurts from the faucets with my STA-RITE MSC-7?
- E
  Erika CareyAug 22, 2025
  If you're experiencing air spurts from your faucets with your STA-RITE Water Pump, it could be due to several reasons. The pump might be picking up prime; when it has picked up prime, it should pump solid water with no air. There could be a leak in the suction side of the pump; check joints for leaks with soapy water. The well itself might be gaseous; consult the factory about installing a sleeve in the well. Or, intermittent over-pumping of the well might be occurring, where water is drawn down below the foot valve; lower the foot valve if possible, otherwise restrict pump discharge.
E
Emily BairdAug 27, 2025
Why is my STA-RITE Water Pump not delivering water to full capacity?
- R
  Raymond ThomasAug 27, 2025
  If your STA-RITE Water Pump isn't delivering water to its full capacity, it could be because the water level in the well is lower than estimated; a deep well jet may be needed if your well depth to water is more than 25’ (7.6M). If you're using steel piping, it might be corroded or limed, causing excess friction; replace it with plastic pipe where possible, or with new steel pipe. Also, the offset piping might be too small in size; use larger offset piping.
A
Antonio GregorySep 1, 2025
Why does my STA-RITE MSC-7 Water Pump motor run hot and the overload keeps tripping?
- F
  Frederick MaldonadoSep 1, 2025
  If your STA-RITE Water Pump motor runs hot and the overload kicks off, it could be due to a few reasons. The motor might be wired incorrectly; refer to the wiring instructions. The voltage could be too low; check with the power company. Also, the pump might be cycling too frequently; see the section on too frequent cycling.

STA-RITE MSC-7 Specifications

General

Brand	STA-RITE
Model	MSC-7
Category	Water Pump
Language	English

Summary

Safety

Electrical Safety

Essential safety guidelines for electrical components.

General Safety

Electrical

Motor Wiring Connections

Connecting motor wiring to the pressure switch for correct voltage.

Wiring Connections

Important safety and code compliance notes for pump wiring.

Connection Procedure

Steps for proper grounding and connecting power supply wires.

Wiring Chart

A chart detailing wire and fuse sizes based on motor HP and distance.

Operation

Priming the Pump

Detailed instructions for priming the pump before starting operation.

Maintenance

Pump Disassembly/Assembly

Step-by-step guide for disassembling and reassembling the pump.

Installation of New Seal

Troubleshooting

Related product manuals

STA-RITE MPRA6G-155L

STA-RITE MPFA6E-146L

STA-RITE MPFA6F-147L

STA-RITE MPRA6E-147L

STA-RITE MPRA6YF-174L

STA-RITE DYNA-PRO MPE6D-205L

STA-RITE DYNA-PRO MPRA6G-207L

Preview: STA-RITE DYNA-PRO MPRA Series

STA-RITE DYNA-PRO MPRA Series

STA-RITE DYNA-PRO MPRA6E-205L