Annovi Reverberi XJS Serie Manual De Uso E Instalación página 32

Problem
Pump noisy
Pump overheating
Water in oil
Oil leaks from dump lines under-
neath the pump
Oil leaks from dump lines under-
neath the pump
(1) Operations which must be carried out at an authorised service centre
English
TROUBLESHOOTING
Cause
Air being sucked into system
Intake and/or delivery valve
springs broken or collapsed
Valves blocked by dirt
Worn bearings
Intake liquid temperature too
high
High pump operating pressure
Guide piston gaskets worn
Worn gaskets
Worn gaskets
Worn pistons
Guide piston gaskets worn
32
Remedy
Restore the tightness of the
intake line connections
Change the valves (1)
Clean the valves (1)
Change the bearings (1)
Reduce liquid temperature
Reduce the pressure to the rated
values
Replace the gaskets (1)
Replace the gaskets (1)
Replace the gaskets (1)
Change the pistons (1)
Replace the gaskets (1)
Use and Installation
8