Instruction Trouble shooting guide for APP and APP S 674 pumps
10
06.2013
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Danfoss A/S
High Pressure Pumps
DK-6430 Nordborg
Denmark
Picture 1
If the port plate has scratches, level dierences 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 insucient 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 oce for further infor-
mation.
Scratches
Level dierences between
dull and shining PEEK