FORD 2004 F-550 v.3 - Manual (Page 148)

Shifting from 4H (4WD High) to 4L (4WD Low)
1. Bring the vehicle to a complete stop.
2. Depress the brake.
3. Place the gearshift lever in N (Neutral) (automatic transmission) or
depress the clutch (manual transmission).
4. Move the transfer case shift lever
through N (Neutral) directly to 4L
(4WD Low).
5. If the transfer case will not
engage into 4L (4WD Low), let the
vehicle creep at a speed above 1
mph (1.6 km/h), then repeat steps 1
through 4.
Shifting from 4L (4WD Low) to 4H (4WD High) or 2H (2WD High)
1. Bring the vehicle to a complete stop.
2. Depress the brake.
3. Place the gearshift lever in N (Neutral) (automatic transmission) or
depress the clutch (manual transmission).
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 5 mph (8
km/h), 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.
2H
4H
4L
N
2H
4H
4L
N
2004 F250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA English (fus)
Driving
148