Danfoss APP series

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