Honda FL6555 Operator's Manual page 46

SERVICE
Hydraulic Valve
Installation continued
Check for hydraulic leaks and ensure hose
routings do not result in hydraulic hoses
rubbing orcatching on adjacent tractor/loader
components.
Relief Valve Test/Adjustment
Safety glasses should be worn when
performing this adjustment.
Install a O-4000 PSI test gauge into the
unused loader control valve pressure port
("IN").
Start tractor and run engine at operating
speed to bring hydraulic fluid up to normal
operating temperature.
With engine at governed R.P.M., shift loader
control valve bucket cylinder spool to fully
retract bucket cylinders and hold in this
position to obtain hydraulic system relief
pressure.
Observe pressure reading on test gauge.
NOTICE1 Do not maintain hydraulic
system at relief pressure for more than
10
second intervals to prevent overheating of
hydraulic system.
Adjust relief pressure to specification by
removing relief valve cap, loosening locknut
and turning adjustment screw:
'IN" (clockwise) to increase relief pressure.
'OUT" (counter-clockwise) to decrease relief
pressure.
Refer to "Loader Specifications" for relief
valve setting.
Re-torque locknut and reinstall relief valve
cap and crushwasher.
Recheck relief pressure.
Shut tractor OFF, remove test gauge and
reinstall port plug.
Start tractor and check for leaks.
4000 PSI
Test Gauge
In
I Ports
Relief Valve Test
44