12” CHIPPER SERVICE
HYDRAULICS
61
HOSES AND FITTINGS
•
Inspect hoses and fittings for leaks,
tightness, wear, or damage. Replace any
hoses and fittings that need replacing.
•
FLUID UNDER PRESSURE CAN
PENETRATE THE SKIN AND CAUSE
SEVERE INJURY. CHECK HOSES
AND FITTINGS USING A BOARD
OR CARDBOARD; DO NOT USE
HAND OR FINGER. SEEK
IMMEDIATE MEDICAL ATTENTION
IF SKIN IS PENETRATED. ALWAYS
WEAR EYE PROTECTION.
HYDRAULIC PRESSURE
•
If feed wheels start to run slow when
engine RPM is high, check hydraulic
pressure.
•
Remove the plug in the top right rear
corner of the hydraulic block, hole
marked “G”, and install a pressure
gauge.
•
Test the hydraulic pressure. With the
engine at idle and with the
cutter disk
disengaged
, run a log between the feed
wheels and butt it against the cutter disk.
Turn Auto-Feed off to operate feed
wheels with engine at idle, see Machine
Controls section. Check the pressure
reading.
•
The overall hydraulic pressure setting is
2500 PSI, preset at the factory, and
should remain set at that pressure.
REMOVE PLUG
AND INSTALL
PRESSURE GAUGE
DO NOT UNDER ANY CIRCUMSTANCES SET
THE HYDRAULIC PRESSURES ABOVE THE
FACTORY SETTINGS; COMPONENT PART
AND HYDRAULIC SYSTEM DAMAGE WILL
OCCUR AND POSSIBLY PERSONAL INJURY.
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