180R9288_AQ109686503100en-001301 | 3© Danfoss | 2023.12
Operation guide Installation, Operation and Maintenance Manual for PAHT 20-90 pumps
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 back onto 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
Table of Contents .................................................................................18
1. Data sheet PAHT 2-308 pumps (AI106586503085en-00090 1) ............................19
2. Pump instruction PAHT 20-32 and PAHT 50-90 (AN101386502958en-000603) . . . . . . . . . . . .43
3. Electric motor manual (180R9230) ......................................................55
4. Parts list PAHT (AX322445815902en-000201) ............................................61
5. Trouble shooting guide for PAH, PAHT, PAHT G, PAHT 674 and PAH F pumps .............69
6. Right and wrong - Trouble shooting guide for water hydraulic systems (180R9042).......81
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