90 S450 Operation & Maintenance Manual
HYDRAULIC CONTROLS (CONT’D)
Relieve Auxiliary Hydraulic Pressure (Loader And Attachment)
AVOID BURNS
Hydraulic fluid, tubes, fittings and quick couplers
can get hot when running machine and attachments.
Be careful when connecting and disconnecting quick
couplers.
W-2220-0396
AVOID INJURY OR DEATH
Diesel fuel or hydraulic fluid under pressure can
penetrate skin or eyes, causing serious injury or
death. Fluid leaks under pressure may not be visible.
Use a piece of cardboard or wood to find leaks. Do
not use your bare hand. Wear safety goggles. If fluid
enters skin or eyes, get immediate medical attention
from a doctor familiar with this injury.
W-2072-EN-0909
Front Auxiliary Quick Couplers
When Connecting: Push the quick couplers tightly
together and hold for 5 seconds; the pressure is
automatically relieved as the couplers are installed.
When Disconnecting: Push the quick couplers tightly
together and hold for 5 seconds; then retract the sleeves
until the couplers disconnect.
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