Troy-Bilt 14066 - Manual (Page 32)

SERVICE
Relief Valve Test/Adjusiment
Important:
Safety glasses should be worn when performing
this adjustment.
Install a 0-4000 PSI Test Gauge into the unused
Loader Control Valve pressure port (“IN”) at the
Control Valve. Fig. 15.
Start tractor and run engine at operating speed
to bring hydraulic fluid up to normal operating
temperature.
With engine at maximum R.P.M., shift loader con­
trol valve bucket cylinder spool to fully retract
bucket cylinders and hold in this position to ob­
tain hydraulic system relief pressure.
Observe pressure reading on Test Gauge.
Important:
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 remov­
ing Relief Valve Cap, loosening Locknut and tur­
ning Adjustment Screw:
“In” (clockwise) to increase Relief Pressure.
“Out” (counter-clockwise) to decrease Relief
Pressure.
Note:
Refer to“Loader Specifications” for Relief Valve
Setting.
Retorque locknut and reinstall Relief Valve Cap.
Recheck relief pressure.
Shut tractor OFF, remove Test Gauge and recon­
nect hydraulic lines.
Start tractor and check for leaks.
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