© Danfoss | DCS-SGDPT/SI | 2023.01
74 | 180R9289 | AQ109686503106en-001102
Operation guide
Installation, Operation and Maintenance Manual for PAHT 256-308 pumps
Picture 1
If the port plate has scratches, level differences or both between the arrows,
the port plate must be replaced.
Even small scratches or wear will cause loss of flow.
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 insufficient filtration.
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 office for further infor-
mation.
Scratc
hes
Level d
ifferenc
es bet
ween
dull an
d shi
ning P
EEK
Guideline
521B1475 | DKCFN.PI.012.R2.02
