Grundfos MTB 50-200/215 Service Instructions Manual Download Page 3

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1.3 Key to codes

Code for pump version

Code for pipe connection

Code for materials, excluding plastic and rubber parts

Code for materials, including plastic and rubber parts

As standard, the pump has O-rings of FKM rubber.

Code

Description

Basic version

Code

Description

DIN flange

Code

Description

Cast iron

Code

Description

Rubber bellows seal

Silicon carbide

FKM

NBR

Summary of Contents for MTB 50-200/215

Page 1: ...the impeller 6 4 4 Removing the shaft seal and pump head 6 4 5 Removing the pump shaft 6 4 6 Fitting the pump shaft 6 4 7 Fitting the pump head and shaft seal 6 4 8 Fitting the impeller 7 4 9 Fitting...

Page 2: ...l TM03 2218 3905 Pos Description Pos Description 1 Type designation 5 Country of origin 2 Product number serial number 6 Speed 3 Rated flow rate 7 Head 4 Max system pressure max liquid temperature 8 M...

Page 3: ...uding plastic and rubber parts Code for materials including plastic and rubber parts As standard the pump has O rings of FKM rubber Code Description A Basic version Code Description F DIN flange Code...

Page 4: ...orque Nm Lubricant 2 Pump head 1 Soapy water 6 Set screw 2 M8 15 Loctite 243 17 Air vent screw 1 8 20 Priming and drain plug 2 25 26 Staybolt 6 or 8 M10 45 36 Nut 6 or 8 M10 45 36a Nut 4 M8 M12 M16 12...

Page 5: ...que tools A B C D E F G H Pos Designation For pos Description Part number A Pinch bar 2 6 Pos Designation For pos Description Part number B Ring open end spanner 17 20 36 36a 67 C Bit holder C D Bits...

Page 6: ...e O ring pos 72a 4 3 Removing the impeller 1 Remove the pump head and motor See 4 2 Removing the pump head and motor 2 Remove the nut pos 67 holding the impeller pos 49 3 Remove the spring washer pos...

Page 7: ...2a with soapy water and fit it on the pump head 2 Lift the motor with pump head by the pulley and carefully insert the impeller pos 49 into the pump housing pos 6 3 Fit the nuts pos 36 on the bolts po...

Page 8: ...ngs of motors of 11 kW and up must be greased according to the indications on the motor nameplate The motor should be lubricated with a lithium based grease meeting the following specifications NLGI c...

Page 9: ...pressure changes in the discharge pipe may damage the pump 3 Vent the pump during starting by loosening the air vent screw pos 17 in the pump head until a steady stream of liquid runs out of the vent...

Page 10: ...casionally a The overload setting of motor protective circuit breaker is too low Set the motor protective circuit breaker cor rectly b Supply voltage periodically too low or too high Check the voltage...

Page 11: ...tantly applies only to pumps with automatic start stop a The stop pressure has been set too high Reduce the selected stop pressure b Leakage in the discharge pipe Repair the leakage c The direction of...

Page 12: ...12 13 8 Drawings 8 1 MTB 50 200 215 65 160 158 and 65 160 171 pump with feet TM03 4772 2706...

Page 13: ...13 13 8 2 MTB 65 200 183 and 65 200 199 motor with feet TM03 4771 2706...

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Grundfos MTB 50-200/215, Service Instructions Manual

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Summary of Contents for MTB 50-200/215

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