Danfoss APP series

110 | 180R9346 | AQ240486503020en-001702 © Danfoss | 2023.03
Operation guide Installation, Operation and Maintenance APP 53-92 pumps
Picture 1 If the port plate has scratches, level dierences or both between the arrows,
the port plate must be replaced.
Even small scratches or wear will cause loss of ow.
To check: See item 6.1, picture 3.
6.2 Port plate
6.3 Swash plate
Picture 1 If the swash plate is polished 360°, it is an indication of insucient ltration.
The surface of the swash plate must be plane and even at same level all
over. To check this, please see item 6.1, picture 3.
If the surface has any marks/scratches, it is worn/damaged and a new one
is required.
Please contact Danfoss High Pressure Pumps sales oce for further infor-
mation.