Bulletin MSG30-5511-M1/UK
24
Parker Hannifin
Pump & Motor Division Europe
Trollhättan, Sweden
Service Manual/Spare Parts
Series F11
Cavitation
Pistons with the grinding rings intact
have been in a clean system. No over-
speed and good viscosity on the oil.
Pistons with worn piston ball. The ball is
polished due to contaminated oil and/
or overspeed.
Note!
High temperature (low viscosity) can be
a reason.
Cavitation
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