Instruction
Disassembling and assembling APP S 2.0-3.5 / APP S 674 2.0-3.5
24
180R9281 / 521B1275 / DKCFN.PI.013.C4.02 / 10.2015
10. When should the pistons
be replaced
Picture 1:
Cavitation of the piston shoes.
New inspection is required in 3,000-4,000
hours.
Picture 2:
Cavitation of the piston shoes.
All pistons must be replaced within the
next 500-1,000 hours.
Picture 3:
Cavitation of the piston shoes.
All pistons must be replaced within the
next 100-200 hours.
This section provides guidance on, how to
determine whether the parts of the pump are
worn and should be replaced. In case of doubt
- the pistons must be replaced. The pictures
below are meant as a guideline for evaluating
the wear of the sliding surface.
Note: If the pistons break down, the pump
will suffer a disastrous breakdown.
Picture 4:
Abrasive wear of the piston shoes.
All pistons must be replaced immediately.
