Guide line | Trouble shooting guide for PAH, PAHT, PAHT C , PAHT G, PAHT 674 and PAH F pumps
65
180R9316 | AQ176586503002en-000501 | IOM PAHT C 2-6.3 pumps | 01.2022
6.
Typical signs of wear
6.1 Valve plate
Picture 1
A normally worn valve plate has no marks/scratches but only a slightly
polished surface .
No scratches or marks should be felt . The surface must be flat and level .
Picture 2
Scratches
A worn valve plate has scratches, and/or a polished surface . Even small
scratches will give a loss of flow .
Picture 3
A good way to identify a worn valve plate is to hold a straight knife edge
over the valve plate . When holding it up to the light, it will be possible to
see any space between the knife edge and the valve plate . See picture 3 .
If any light can be seen between the two arrows on the picture, the valve
plate is worn .
If any scratches or marks can be felt by running a fingernail over the surface,
the valve plate is worn .
The valve plate on picture 3 is highly damaged .
Summary of Contents for PAHT C
Page 30: ...Danfoss DCS im 2017 06 521B1374 A 234386502982en000401 PAHT C pumps UK 06 2017 30...
Page 46: ...46 180R9316 AQ176586503002en 000501 IOM PAHT C 2 6 3 pumps 01 2022...
Page 75: ...180R9316 AQ176586503002en 000501 IOM PAHT C 2 6 3 pumps 75 Danfoss DCS im 2022 01...
Page 76: ...Danfoss DCS im 2022 01 76 180R9316 AQ176586503002en 000501 IOM PAHT C 2 6 3 pumps...