Hydraulic System - Hyundai HL960A Operator's Manual

4. HYDRAULIC SYSTEM

4. HYDRAULIC SYSTEM
Trouble
Bucket lacks lifting power.
Bucket lifting speed is slow.
Bubbles in oil.
Oil pressure is too low.
Cylinder vibrates when operating. · Add oil.
Service
·
Check the hydraulic oil level and add if necessary.
·
Replace filter in hydraulic tank.
·
Replace with specified oil.
·
Add oil if needed.
·
Bleed air from oil line.
·
Add oil and bleed air.
7-4
Remark