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5. HYDRAULIC SYSTEM
5.1 HYDRAULIC FLOW DIAGRAM
INSPECTION OF HYDRAULIC OIL
External appearance
Smell
Condition
Countermeasure
Clear and no discoloration
Fine
Fine
Possible to use
Clear but the color becames bright
Fine
Mixed with other oil
Inspect the viscosity and if fine
it can be continuously used
Color changed like milk.
Fine
Mixed with air and water
Separate water or replace oil.
Color changed into dark brown
Bad
Oxidized
Replace oil.
Clear but there are small black
spots
Fine
Mixed with other particles
Use after filtering.
5.2 INSTALLATION OF HYDRAULIC SYSTEM