7 - Fault finding
7.3
CONTROL/REMEDY
Air in system.
Restrictor or regulation valve blocked.
PROBABLE CAUSE
Loosen ram connection and activate hydraulics until oil flow
has no air in it (not whitish).
Secure boom. Dismantle and clean.
Hydraulic system - Y model
Boom slow/eradic.
Ram not functioning.
FAULT
Regulation valve incorrectly set. Open or close until desired speed is achieved (clockwise =
less speed).
Remember oil must be at operating temperature.
Insufficient hydraulic pressure. Check output pressure of tractor hydraulics. Minimum for
sprayer is 130 bar.
Insufficient amount of oil in tractor reser-
voir.
Check and top if needed.
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