FORD 2002 F-550 v.3 - Manual (Page 150)

4. Move the transfer case shift lever
through N (Neutral) directly to 4H
(4WD High) or 2H (2WD High).
5. If the transfer case will not
disengage from 4L (4WD Low),
drive the vehicle above 8 km/h (5
mph), then repeat steps 1 through
4.
6. If shifting to 2H (2WD High) with the vehicle at a complete stop,
disengage the locking hubs (optional) by rotating the hub lock control
from LOCK to FREE.
Using the N (Neutral) position
The transfer case neutral position overrides the transmission and
puts the vehicle in neutral regardless of transmission gearshift
lever position. The vehicle can move forward or backwards.
This position should only be used
when towing the vehicle.
Do not leave the vehicle unattended with the transfer case in the
N (Neutral) position. Always set the parking brake fully and turn
off the ignition when leaving the vehicle.
Using the electronic shift 4WD system (if equipped)
Positions of the electronic shift system
To prevent damage, the electronic shift 4WD system is designed
to allow up to 45 seconds before a shift command is performed.
In the event that conflicting shift commands are selected, allow
up to 45 seconds for the shift command to be performed prior to
reporting any shift concerns to your dealer.
2H (2WD High) – For general on-road driving. Sends power to the rear
wheels only.
4H (4WD High) – For winter and off-road conditions. Sends power to
front and rear wheels.
2H
4H
4L
N
2H
4H
4L
N
Driving
150