70 | 180R9288_AQ109686503100en-001301 © Danfoss | 2023.12
Operation guide Installation, Operation and Maintenance Manual for PAHT 20-90 pumps
Table of Contents
Table of Contents
Trouble shooting sh bone chart .......................................................71
1. No ow/no pressure....................................................................72
2. Reduced ow/reduced pressure ........................................................73
3. High torque on electric motor ..........................................................74
4. Noise from pump ......................................................................75
5. Noise from installation .................................................................76
6. Typical signs of wear ...................................................................77
6.1 Valve plate.............................................................................77
6.2 Port plate ..............................................................................79
6.3 Swash plate............................................................................79
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