Zetor UTILIX HT 45 Operator's Manual page 120

SYMPTOM
Brake not working
Brake
Brake pedal not returning
Hydraulic
system
Hydraulics are not lifting
Oil leak from pipe
When lifting the relief
valve whistles
For any other hydraulic problems please consult your dealer who has the correct equipment to diagnose
and repair the system
FAULT TRACING
CAUSE
Incorrect free play Worm or
burnt lining Left and right gap
different
Faulty return spring Lack of
grease on the joints
Engine revs. too low
Lack of transmission Oil
Air leaking in from a pipe
Clogged suction filter
Faulty pump
Faulty hydraulic valve
Faulty cylinder
Loose pipe joint Cracked pipe
The stopper has slipped down Adjust the stopper
119
REMEDY
Adjust to correct free play Contact
dealer for repair Equalize
Replace spring
Remove rust and lubricate with grease
Increase engine revs.
Top up the oil to the correct level
Repair or replace pipe or replace
O ring on joint and tighten
Clean and change oil
Contact dealer for repair
Contact dealer for repair
Contact dealer for repair
Tighten joint
Replace or repair pipe