Name: Danfoss APP series
Brand: Danfoss
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180R9346 | AQ240486503020en-001702 | 3© Danfoss | 2023.03

Operation guide Installation, Operation and Maintenance APP 53-92 pumps

6. Operation of pump unit ...............................................................13

6.1 General safety information .............................................................13

6.2 What to listen and look for .............................................................13

7. Maintenance and service of the pump unit .............................................13

7.1 General safety information .............................................................13

7.2 Service and inspection interval for the pump ...........................................13

7.3 Shut down of the system ...............................................................13

7.4 Disassembling and assembling the pump unit ..........................................14

7.5 Assembling the pump unit .............................................................14

7.6 Procedure for mounting the pump onto the electric motor..............................14

7.7 Getting the pump unit back into operation .............................................14

7.8 Storage of the pump ...................................................................14

8. Troubleshooting and scrapping criteria .................................................15

8.1 General safety information .............................................................15

8.2 Operational conditions which can cause pump failures..................................15

8.3 Mechanical failure......................................................................15

8.4 Electrical failure ........................................................................15

8.5 Responsibility..........................................................................15

8.6 Scrapping criteria ......................................................................15

Appendices .......................................................................................17

1. Data sheet for APP pumps 53-92 (AI167386503010en-001301) ...........................19

2. Instruction for APP pumps 53-92 (180R9368) ............................................43

3. Electric motors (180R9230) ..............................................................55

4. Bowex coupling manual.................................................................61

5. Recommended service intervals (AX281930801330en-000401) ..........................85

6. Parts list (AX191786502906en-001101) ...................................................89

7. Trouble shooting (521B1447) ...........................................................101

8. Right and wrong (180R9042) ..........................................................113

Danfoss APP series User Manual

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