background image

Eng

lish (US)

6

Always follow motor manufacturer’s lubrication instructions if 
available, and periodically check grease fittings and drain plugs 
for leaks. 

If lubricating instructions do not accompany the motor, refer to the 
following table for recommended lubrication periods.

 The following table lists the recommended types of grease for 
motor lubrication. These types have all been thoroughly tested 
and should be used whenever possible.

5.2 Cross section and parts list for EB 20503-2

5.3 Cross section and parts list for EB 20501-5

Motor Lubrication 

Motor RPM

Motor HP

Operating conditions

3500

All hp

Standard

Sever

Extreme

6 mo

3 mo

3 mo

Standard conditions: 

8 Hours per day operation, normal or light loading, clean air, 
100ºF, maximum ambient temperature. 

Severe conditions: 

Continuous 24-hour operation, shock loading or vibration, poor 
ventilation, 100-150ºF, ambient temperature. 

Extreme conditions: 

Continuous operation, heavy shock or vibration, dirt or dust in 
air, extreme ambient temperature. 

Manufacturer

Lubricant

Shell

Dolium R

Exxon

Polyrex

Chevron

SRi grease NLGI 2

Blackpearl - NLGI 2

Phillips

Polytac

Texaco

Polystar RB

TM

0

5

 5

595

 3

712

Position 

Number

Part Name

Position 

Number

Part Name

1

Casing

6

Seal Assy

2

Impeller

7

Gasket casing

3

Bracket

8

Wear ring

4

Pipe Plug

9

Push Type Fitting

5

Tubing

T

M

05

 55

9

3

 37

1

2

Position 

Number

Part Name

Position 

Number

Part Name

1

Casing

8

Pipe. Plug

2

Impeller

9

Wear Ring

3

Shaft Sleeve

10

Adapter

4

Cap Screw Impeller

11

Tubing

5

Key, Impeller

12

Push Type Fitting

6

Washer, Impeller

13

Seal Assy

7

Gasket, Casing

14

Bracket

Summary of Contents for EB 20501-5

Page 1: ...GRUNDFOS INSTRUCTIONS End gun booster Installation and operating instructions...

Page 2: ...2...

Page 3: ...ILL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES LOSSES OR EXPENSES ARISING FROM INSTALLATION USE OR ANY OTHER CAUSES THERE ARE NO EXPRESS OR IMPLIED WARRANTIES INCLUDING MERCHANTABILITY...

Page 4: ...f installations are threaded straight onto the nipple where the suction must be the same size no decrease in pipe size at suction allowed Discharge pipe size will be the same at the pump or may be one...

Page 5: ...on performance curve 8 Check and record voltage amperage per phase and kilowatts if a wattmeter is available 4 5 Voltage regulation The motor will operate satisfactorily under the following conditions...

Page 6: ...ion normal or light loading clean air 100 F maximum ambient temperature Severe conditions Continuous 24 hour operation shock loading or vibration poor ventilation 100 150 F ambient temperature Extreme...

Page 7: ...ent items Specify pump serial or catalog number when ordering parts 3 Reassembly is the reverse of disassembly 4 Observe the following when reassembling the liquid end All mechanical seal components m...

Page 8: ...8...

Page 9: ...9...

Page 10: ...10...

Page 11: ...Grundfos companies U S A Grundfos CBS Inc 902 Koomey Road Brookshire TX 77423 USA Phone 281 994 2700 Toll Free 1 800 955 5847 Fax 1 800 945 4777...

Page 12: ...ing ahead makes it possible Innovation is the essence The name Grundfos the Grundfos logo and the payoff Be Think Innovate are registrated trademarks owned by Grundfos Management A S or Grundfos A S D...

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