18” CHIPPER SERVICE
HYDRAULICS
62
ONLY USE QUALIFIED PERSONNEL TO WORK ON HYDRAULIC SYSTEMS
FOR REPAIRS OR REPLACEMENT OF PARTS!!
• The plugs on top of the block are marked G1
for the top feed wheel and G2 for the bottom
feed wheel. The pressure adjustment valves
are below each plug on the bottom of the
block.
• Adjust pressure only if necessary and after
testing with a pressure gage. To increase
pressure turn clockwise until it bottoms out.
Recheck pressure. Contact J. P. Carlton or
your dealer for more information.
• The hydraulic yoke lift pressure setting is
900 PSI, set at the factory and should remain
set at that pressure.
• The hydraulic discharge swivel pressure is
500 PSI, set at the factory and should remain
set at that pressure.
• If equipped with the hydraulic winch, the
pressure setting is 2000 PSI, set at the
factory and should remain set at that
pressure.
• If the pressure needs adjusting for any of the
functions mentioned above, remove the
control panel cover.
• Then, remove the plug and turn the slotted
screw clockwise to increase pressure and
counterclockwise to decrease pressure.
VALVE PRESSURE
ADJUSTMENT –
REMOVE PLUG
AND TURN
SLOTTED SCREW
REMOVE CONTROL
PANEL COVER
PRESSURE ADJUSTMENT
(BLOCK MARKED G1 FOR TOP WHEEL
AND G2 FOR BOTTOM FEED WHEEL)
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