PART 4: CONTROLS AND DISPLAYS DASH-MOUNTED FEATURES
(R10/06) Y53-6007 – 27 –
WARNING! Do not drive with worn or dirty
wiper blades. They can reduce visibility, mak-
ing driving hazardous. Clean blades regularly
to remove road film and wax build-up. Use an
alcohol-based cleaning solution and a lint-
free cloth, and wipe along the blades.
CAUTION: Do not use antifreeze or engine
coolant in the windshield washer reservoir—
damage to seals and other components will
result.
Intermittent Windshield Wiper Control
Two-speed intermittent windshield wipers are controlled
by the control panel knob with the symbol shown above.
To turn on the wipers, rotate the knob to the right.
As you turn the knob further to the right, intermittent delay
decreases until the knob encounters the first position for
continuous operation. Turn the knob further right to the
next position for higher speed continuous operation. Turn
off the wipers by rotating the knob to the left.
Air Suspension Deflate Switch (Dump Valve)
AIR SUSPENSION
03035
Your Model 387 may have an air suspension deflation
switch that allows the air in the suspension to be
exhausted from a switch on the dash. The purpose of this
feature is to allow you to lower your tractor to get under a
trailer. You will notice a guard over the switch. This pre
-
vents you from accidentally deflating the suspension.
WARNING! Operating the Air Suspension
Deflate Switch (Dump Valve) while driving can
lead to an accident. Sudden deflation while
your vehicle is moving can affect handling
and control. Use this switch only when your
vehicle is not moving.
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