Owner's manual

80
Model 644E Rev. 8/03
Operation
Stabil-TRAK™ System Test Procedures
Step 1:
a. Place the vehicle on a level surface with 0° sway.
b. Have the boom fully retracted and horizontal.
c. Place an 8" (203 mm) wood or cement block in front of the front left
tire.
d. Enter the vehicle.
e. Fasten the seat belt.
f. Turn the ignition switch to the RUN position.
g. Check to be sure the Stabil-TRAK lock light and the Stabil-TRAK slow
pivot lights on the front dash panel are both OFF. (See page 49 for the
location of these lights in the front dash panel.) The slow pivot light will
come ON and remain ON anytime the service brake pedal has been
partially applied, with the boom below 40°.
Step 2:
a. Turn the ignition switch and start the engine.
b. Turn the parking brake switch OFF.
c. Move the range select lever to (1) FIRST gear.
d. Move the travel select lever to the (F) FORWARD position.
e. Drive the vehicle up on the block and stop the vehicle.
f. Use the frame sway control to level the vehicle back to 0°.
Step 3:
a. Depress the service brake pedal. Note the slow pivot light will come
ON.
b. Move the travel select lever to the (N) NEUTRAL DETENT position.
c. Raise the boom to exactly 60°
. The Stabil-TRAK lock light should
come ON when the boom angle is at about 40° and remain ON. The
Stabil-TRAK slow pivot light should be OFF.
WARNING: DO NOT operate this vehicle unless you are in the
seat with the seat belt fastened around you. Death or serious personal
injury could result if the belt is not securely fastened.