Stanley Furniture GR60 Manual

A SERVICE OF

next previous

GR60 User Manual ◄ 13

If symptoms of poor performance develop, the following chart can be used as a guide to correct the problem.

When diagnosing faults in operation of the grinder, always check that the hydraulic power source is supplying the

correct hydraulic ow and pressure to the grinder as listed in the table. Use a owmeter known to be accurate.

Check the ow with the hydraulic oil temperature at least 80°F/27°C.

Grinder does not run Hydraulic power source not Check power source for proper

    functioning.    owandpressure(7-10gpm/

         26-38lpm@1500-2000psi/

         105-140bar.

    Couplersorhosesblocked.  Locateandremoverestriction.

    Hydraulicmotorfailure.  Inspectandrepair.

Hydraulic lines not connected. Connect lines.

Grinderoperatestooslow. Hydraulicmotorspeedtoslow. Checkpowerunitforproper

         ow(7-10gpm/26-38lpm).

    Highbackpressure.   Checkhydraulicsystemfor

         excessiveback-pressure(over

         250psi/17bar).

    Couplersorhosesblocked.  Locateandremoverestriction.

    Oiltoohot(above140°F/60°C) Checkhydraulicpowersource

    ortoocold(below60°F/16°C). forproperoiltemperature.

         Bypasscoolertowarmoilor

         providecoolertomaintain

         propertemperature.

    Reliefvalvesettoolow.  Adjustreliefvalveto2100-2250

         psi/145-155bar.

    Hydraulicmotorworn.  Inspect,repairorreplace.

    Flowcontrolmalfunctioning. Haveowcontrolservicedat

         anauthorizedStanleyservice

center.

Grinderoperatestoofast. Flowcontrolmalfunctioning. Haveowcontrolandvalve

         bodyservicedatanauthorized

         Stanleyservicecenter.

TROUBLESHOOTING