Grundfos MTB 50-200/215, Service Instructions Manual

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Service instructions
MTB
50 Hz
3~
1 / 13
96649460 1006
GB
13
1. Type identification ........................................................................................................................... 2
1.1 Nameplate ........................................................................................................................................................... 2
1.2 Type key .............................................................................................................................................................. 2
1.3 Key to codes ........................................................................................................................................................ 3
2. Tightening torques and lubricants................................................................................................. 4
3. Service tools .................................................................................................................................... 5
3.1 Special tools ........................................................................................................................................................ 5
3.2 Standard tools...................................................................................................................................................... 5
3.3 Torque tools......................................................................................................................................................... 5
4. Dismantling and assembly ............................................................................................................. 6
4.1 General information ............................................................................................................................................. 6
4.2 Removing the pump head and motor .................................................................................................................. 6
4.3 Removing 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 the pump head and motor......................................................................................................................... 7
5. Maintenance ..................................................................................................................................... 8
5.1 Pump ................................................................................................................................................................... 8
5.2 Motor.................................................................................................................................................................... 8
5.3 Service by Grundfos ............................................................................................................................................ 8
6. Start-up ............................................................................................................................................. 9
6.1 Priming................................................................................................................................................................. 9
6.2 Checking the direction of rotation ........................................................................................................................ 9
6.3 Start-up ................................................................................................................................................................ 9
6.4 Restarting ............................................................................................................................................................ 9
6.5 Stopping............................................................................................................................................................... 9
7. Fault finding ................................................................................................................................... 10
8. Drawings......................................................................................................................................... 12
8.1 MTB 50-200/215, 65-160/158 and 65-160/171 (pump with feet)....................................................................... 12
8.2 MTB 65-200/183 and 65-200/199 (motor with feet)........................................................................................... 13