Frequently Asked Questions

PUMPS

Pumps are one of the most important machines in many modern industries, including the agricultural, gas, and coal industries that are so important to Alberta. Whenever someone needs a liquid moved (particularly a large amount of liquid to be moved quickly), you can bet that the machine powering that movement was a pump.

At Southern Rewind Ltd, we offer help with AC or DC electric motors, electric generators, water systems accessories, and Pumps in Lethbridge and Medicine Hat. We’re trained and experienced in troubleshooting just about any problem with just about any make or model of pump out there. Here are just a few of the most frequently asked questions about pumps we’ve come across over the years serving our southeastern Alberta communities:

1. IF I PUT A MORE POWERFUL MOTOR ON MY PUMP, WILL IT MOVE LIQUID FASTER?

By itself, no, it won’t. The rate at which a pump moves liquid depends on a combination of the power of the motor, the speed of the impeller’s rotation, and the size of the impeller and casing. Changing only one of these elements won’t do much and may even damage the other parts.

2. NO LIQUID IS BEING PUMPED WHEN I TURN IT ON. WHAT’S WRONG?

Your pump is part of a larger system for moving liquid that includes a liquid supply, a suction line, a pump and driver system, and a discharge line. There may be a problem at any part of this system that interferes with liquid flow. The most likely culprits are an improperly primed pump or blockage in the casing or pipes. Pump-troubleshooting experts in Lethbridge should perform a full diagnostic so you won’t have worse problems in the future.

3. I HEAR A CRACKLING SOUND WHEN MY PUMP IS WORKING AND THE PRESSURE OF THE LIQUID VARIES RAPIDLY. WHAT’S WRONG?

If your machine has these symptoms, it probably means cavitation, or when air bubbles form near the eye of the impeller. If left unattended, this problem can cause serious damage to your pump. Consult a professional to identify how you should fix this problem.

4. WHY ARE THE BEARINGS ON MY PUMP GETTING REALLY HOT?

Bearings are essential for the smooth operation of your pump. If your bearings are increasing in temperature, it probably means that there is increased friction in the shaft that spins your impeller. Most problems with friction are actually problems with lubrication so check to be sure there isn’t too much or too little lubrication in your pump.

YOUR SOURCE FOR PUMPS IN LETHBRIDGE AND MEDICINE HAT

Whatever issue you might have, we at Southern Rewind Ltd are happy to offer troubleshooting services for Pumps in Lethbridge and Medicine Hat. Contact Us today to find out how we can get your pump up and running again

TRIPLE-RATE REFERENCE SPECIFICATIONS & MORE

On this page, you'll find technical specifications for a number of common industry brands. Southern Rewind Ltd invites you to refer to the following information as you need it:

BALDOR®

If you have additional questions after reviewing the diagram below, please Contact Us.

Connection Diagram — Baldor® Triple Rate

Source

Max HP

L1 (1 – 12)

L2 (2 – 10)

L3 (3 – 11)

Med HP

L1 (1)

L2 (2)

L3 (3)

Min HP

L1 (1)

L2 (2)

L3 (3)

Tie Together

Med HP

(4 – 12)

(5 – 10)

(6 – 11)

Min HP

(7 – 12)

(8 – 10)

(9 – 11)

Insulate Separate

7/8/9

Med HP

4/5/6/7/8/9

Min HP

4/5/6

Applications:

Rating

All

Original DWG

GE® 1

CONNECTION DIAGRAM FOR GE®

If you have additional questions after reviewing the diagram below, please Contact Us.

Connection Diagram — GE® Triple Rate

Source

Max HP

L1 (1 – 6)

L2 (2 – 4)

L3 (3 – 5)

Med HP

L1 (1)

L2 (2)

L3 (3)

Min HP

L1 (1)

L2 (2)

L3 (3)

Tie Together

Max HP

Med HP

(4 – 8)

(5 – 9)

(6 – 7)

Min HP

(4 – 9)

(5 – 7)

(6 – 8)

Insulate Separate

Max HP

7/8/9

Applications:

Rating

25/20/15

Original DWG

GE® 2

ADDITIONAL CONNECTION DIAGRAM FOR GE®

If you have additional questions after reviewing the diagram below, please Contact Us.

Connection Diagram — GE® Triple Rate

Source

Max HP

L1 (1 – 5)

L2 (2 – 6)

L3 (3 – 4)

Med HP

L1 (4)

L2 (5)

L3 (6)

Min HP

L1 (1)

L2 (2)

L3 (3)

Tie Together

Max HP

Med HP

(1 – 9)

(2 – 7)

(3 – 8)

Min HP

(4 – 8)

(5 – 9)

(6 – 7)

Insulate Separate

Max HP

7/8/9

Applications:

Rating

15/10/7.5

Original DWG

TOSHIBA

CONNECTION DIAGRAM FOR TOSHIBA

If you have additional questions after reviewing the diagram below, please Contact Us.

Connection Diagram — Toshiba Triple Rate

Source

Max HP

L1 (T1 – T6)

L2 (T2 – T4)

L3 (T3 – T5)

Med HP

L1 (T1)

L2 (T2)

L3 (T3)

Min HP

L1 (T4)

L2 (T5)

L3 (T6)

Tie Together

Max HP

Med HP

T6/T7/T10

T4/T8/T11

T5/T9/T12

Min HP

T1/T8/T11

T2/T9/T12

T3/T7/T10

Insulate Separate

Max HP

T7/T8/T9/T10/T11/T12

Applications:

Rating

15/10/7.5

Original DWG

TOSHIBA 2

ADDITIONAL CONNECTION DIAGRAM FOR TOSHIBA

If you have additional questions after reviewing the diagram below, please Contact Us.

Connection Diagram — Toshiba Triple Rate

Source

Max HP

L1 (T1 – T6)

L2 (T2 – T4)

L3 (T3 – T5)

Med HP

L1 (T1)

L2 (T2)

L3 (T3)

Min HP

L1 (T1)

L2 (T2)

L3 (T3)

Tie Together

Max HP

Med HP

(6 – 7)

(4 – 8)

(5 – 9)

Min HP

(6 – 10)

(4 – 11)

(5 – 12)

Insulate Separate

Max HP

T7/T8/T9/T10/T11/T12

Med HP

T10/T11/T12

Min HP

T7/T8/T9

Applications:

Rating

20/15/10 HP

25/20/15 HP

30/25/20 HP

40/30/25 HP

50/40/30 HP

60/50/40 HP

75/60/50 HP

100/75/60 HP

Original DWG

S-7072367

SAME

WEG

CONNECTION DIAGRAM FOR WEG

If you have additional questions after reviewing the diagram below, please Contact Us.

Connection Diagram — WEG Triple Rate

Source

Max HP

L1 (T1,T5)

L2 (T2,T6)

L3 (T3,T4)

Med HP

L1 (T4)

L2 (T5)

L3 (T6)

Min HP

L1 (T1)

L2 (T2)

L3 (T3)

Tie Together

Max HP

Med HP

(2 – 7)

(3 – 8)

(1 – 9)

Min HP

(4 – 8)

(9 – 5)

(7 – 6)

Insulate Separate

Max HP

7/8/9

Applications:

Rating

All

Original DWG

VINTAGE WESTINGHOUSE

CONNECTION DIAGRAM FOR VINTAGE WESTINGHOUSE

If you have additional questions after reviewing the diagram below, please Contact Us.

Connection Diagram — Vintage Westinghouse Triple Rate

Source

Max HP

L1 (1 – 12)

L2 (2 – 10)

L3 (3 – 11)

Med HP

L1 (1)

L2 (2)

L3 (3)

Min HP

L1 (1)

L2 (2)

L3 (3)

Tie Together

Max HP

Med HP

(4 – 12)

(5 – 10)

(6 – 11)

Min HP

(7 – 12)

(8 – 10)

(9 – 11)

Insulate Separate

Max HP

4/5/6/7/8/9

Applications:

Rating

All

Original DWG

WHEN TO BE CONCERNED ABOUT TEMPERATURE FOR BEARINGS AROUND LETHBRIDGE

Below, you'll find a table indicating when you should and should not be concerned by the temperature of your bearings around Lethbridge. Please note that if you're using synthetic lubricants, you should add 30 degrees Celsius to these numbers. However, synthetic grease is often not suitable for high-speed applications.

Monitoring Condition

Normal

Alarm

Shutdown

Temperature

80C (176F)

90C (194F)

100C (212F)

MAINTAIN MACHINES ON TIME BY LUBRICATING BEARINGS AROUND LETHBRIDGE

Grease deteriorates with time, so even bearings that have been packed with high quality grease will eventually need re-lubrication. Grease deteriorates because the oil base gradually breaks down from oxidation or evaporates. Then, you’ll need to consider lubricating bearings around Lethbridge.

Lubrication intervals vary greatly depending upon the type and size of bearing used, as well as upon the operating conditions. To re-lubricate bearings, follow the machine manufacturer's specifications. Begin by cleaning the grease fitting and removing the drain plug. After adding the new grease, run the unit for about an hour before reinstalling the drain plug. This purges excess grease without damaging the windings. If the manufacturer's lubrication specifications are not available, the bearing re-lubrication intervals chart below may be used.

RPM

Frame Range

Type of Service

8 Hour Day

Type of Service

24 Hour Day

3600

143T-256T

284TS-286TS

324TS-587US

6 months

4 months

2 months

1800

143T-256T

284T-326T

364T-365T

404T-449T

505U-587U

4 years

1 year

9 months

6 months

18 months

4 months

3 months

2 months

1200 & Below

143T-256T

284T-326T

364T-449T

505U-587U

4 years

1 year

9 months

18 months

4 months

3 months

SOUTHERN REWIND LTD SUPPORTS COMMERCIAL & INDUSTRIAL BUSINESSES IN SOUTHERN ALBERTA

CONTACT US

At Southern Rewind Ltd, we are dedicated to meeting the needs of our commercial and industrial clients throughout southern Alberta, including businesses specializing in oil and gas, food processing, and agriculture, as well as municipalities. With our storefront, presence, and state-of-the-art testing equipment in Medicine Hat, Alberta, we can meet a wide variety of needs, and we offer 24-hour emergency service.

Customers can feel free to drop in at their convenience. You can also contact us by phone with inquiries, or email them to us.