Danfoss APP 16-22 Operation Manual page 53

Operation guide
3. Appendix 1
© Danfoss | 2023.03
Installation, Operation and Maintenance APP 16-22 pumps
Pistons:
The pistons are the heart of the pump regarding
service.
Cavitation of the piston shoes.
New inspection is required in 3,000-4,000 hours.
Cavitation of the piston shoes.
All pistons must be replaced within the next
100-200 hours.
Abrasive wear of the piston shoes.
All pistons must be replaced immediately.
If the pistons break down, the pump will su er a
breakdown.In case of doubt - the pistons must
be replaced.
The pictures below is ment as a guideline for
evaluating the wear of the sliding surface.
Cavitation of the piston shoes.
All pistons must be replaced within the next
500-1,000 hours.
Cavitation of the piston shoes.
All pistons must be replaced immediately.
180R9265 | AQ115586503035en-001003 | 53