Owner's manual

Operation
81
Model 644E Rev. 8/03
Step 4:
a. Use your left foot to fully depress the service brake pedal.
b. Move the travel select lever to (R) REVERSE and the range selector to
the (1) FIRST gear position.
c. Ease your left foot off the service brake pedal, just keeping the Stabil-
TRAK lock light ON (approximately 3/4 pedal travel).
d. With your right foot, increase the engine RPM, as necessary, to back
the vehicle off the block. The Stabil-TRAK lock light should remain ON
while backing off the block, the front left tire should remain off the
ground. If the front left tire drops to the ground, repeat steps 1 thru 4.
IMPORTANT! Perform procedures 5 through 9 with the engine rpm at idle.
Step 5:
a. Keep the service brake pedal
depressed.
b. Move the travel select lever to the (N) NEUTRAL DETENT position.
c. Take your foot off the service brake pedal. The Stabil-TRAK lock light
should remain ON and the front left tire should remain off the ground.
Step 6:
a. With the travel select lever
in the (N) NEUTRAL DETENT position,
engage the parking brake switch.
b. Move the travel select lever to the (F) FORWARD position.
DO NOT depress the service brake pedal. The Stabil-TRAK lock light
should remain ON and the front left tire should remain off the ground.
Step 7:
a. With the parking brake switch
ON, move the travel select lever to the
(N) NEUTRAL DETENT position.
b. Lower the boom to exactly 45°.
c. Frame sway the vehicle no more than 5° to the left.
d. Frame sway the vehicle back to 0°.
e. Frame sway the vehicle no more than 5°
to the right.
NOTE: Observe that frame sway will be slower than normal during this test.
f. The Stabil-TRAK lock light should remain ON and the front left tire
should remain off the ground. The front left tire should not raise or
lower during frame sway.
g. Frame sway back toward 0°, leaving the vehicle swayed to the right
approximately 1° to 2°.