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TRQUBLE SHQOTING
Problem
Cause
Remedy
Pump noisy
Air being sucked into
system
Restore the tightness of the
intake pipeline connections
Intake and/or delivery
valve springs broken
or collapsed
Replace the valves(1)
Valves blocked by dirt
Clean the valves(1)
Worn bearings
Replace the bearings(1)
Intake liquid
temperature too high
Reduce liquid temperature
Pump overheating
High pump operating
pressure
Reduce the pressure to the
rated values
Drive belts too taut
Restore correct belt tension
Pulley or drive
coupling
alignment poor
Restore the correct
alignment
Water in oil
Guide piston gaskets
worn
Replace the gaskets(1)
High humidity
percentage in air
Change the oil twice as often
(than stated in"Routine
Maintenance"table)
Worn gaskets
Replace the gaskets(1)
Oil leaks from dump lines
underneath the pump
Worn gaskets
Replace the gaskets(1)
Worn pistons
Replace the pistons(1)
Oil leaks from dump lines
underneath the pump
Guide piston gaskets
worn
Replace the gaskets(1)
(1)Operations that must be carried out at an authorized service centre
*There are any minor changes to the numbers included in the user
manual without prior notice.
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