Tuning The Air Pressure; Guidelines For Adding Air - Air Lift LoadLifter 5000 Ultimate Installation Manual

TUNING THE AIR PRESSURE

Pressure determination comes down to three things — level vehicle, ride comfort and
stability.
1 . Level vehicle
2 . Ride comfort
3 . Stability

GUIDELINES FOR ADDING AIR

1. Start with the vehicle level or slightly above.
2. When in doubt, always add air.
3. If the front of the vehicle dives while braking, increase the pressure in the front air bags,
4. If it is ever suspected that the air bags have bottomed out, increase the pressure (Fig.
5. Adjust the pressure up and down to find the best ride.
6. If the vehicle rocks and rolls, adjust the air pressure to reduce movement.
7. It may be necessary to maintain different pressures on each side of the vehicle.
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If the vehicle's headlights are shining into the trees or the vehicle is leaning to one
side, then it is not level (Fig. 33). Raise the air pressure to correct either of these
problems and level the vehicle.
If the vehicle has a rough or harsh ride it may be due to either too much pressure or
not enough (Fig. 34). Try different pressures to determine the best ride comfort.
Stability translates into safety and should be the priority, meaning the driver may
need to sacrifice a perfectly level and comfortable ride. Stability issues include roll
control, bounce, dive during braking and sponginess (Fig. 35). Tuning out these
problems usually requires an increase in pressure.
Bad headlight aim
fig. 33
if equipped.
36).
Loads such as water, fuel, and appliances will cause the vehicle to be heavier on one
side (Fig. 37). As much as a 50 PSI (3.5BAR) difference is not uncommon.
Bottoming out
Rough ride
fig. 34
Unlevel
fig. 36
LoadLifter 5000 Series
Sway and
fig. 35
body roll
Level
fig. 37
MN-1053