Hydraulic Systems - Troubleshooting Hydraulic System - New Holland T4.75F Operator's Manual

Hydraulic systems - Troubleshooting HYDRAULIC SYSTEM

Problem
The hydraulic system is
not working properly
Hydraulic fluid
overheating
Hoses not joined together
properly
Automatic control valve
release mechanism kick
out
Remote control valve
does not work
8 - TROUBLESHOOTING
Possible Cause
Oil level low
Hydraulic filter clogged
Hydraulic system fault
Fluid level too high or low
Fluid filter element clogged
Incorrect flow regulation
Radiator block
Spool valve stuck on
Relief valve venting
Damage male couplers
Dirt or soil in the coupling.
Automatic release pressure incorrectly set Adjust automatic release pressure setting
Hoses not connected correctly
Check the flow of oil in the half− couplers Actuate control levers. If problems persist,
System overload
Pump failure
Top up system
Replace hydraulic filter
Call your Dealer
Top up oil
Replace filter
Call your Dealer
Call your Dealer
Call your Dealer
Call your Dealer
Replace couplers with standard ISO−1/2"
connectors, available from your dealer
Clean the coupling
Connect hoses correctly
replace male half−couplers
Reduce load or use a suitable cylinder
Check if hitch goes up and down
8-6
Correction