22
3 .5 3 .5
Measuring Caster with the TLT-56 Digital Level
(
AccuLevel
™)
There is another way to read Caster on Heavy Duty Truck with a solid front (steer) axle. This
method provides an accurate caster reading and gives the user the ability to make caster
measurements and adjustments with out having to purchase turn tables which can be heavy and
costly. To measure caster using the TLT-56 Digital use the following procedure.
1.) Calibrate the smart level by following the directions on the back of the smart level.
2.) Lift the truck engine cowling or tilt the cab to expose the steer axle.
3.) Clean the flat area on the steer axle where the axle u-bolts mount to the axle and spring
assembly of any built up grease or road tar & dirt.
4.) Place the smart level on the flat area next to the u-bolt assembly. Making sure that all of
the TLT-56 Digital Level’s flat surface is touching the axle. In some cases this might
require the technician to crawl underneath the truck to access the axle.
5.) Read the digital scale on the smart level. Smart levels always have arrows that point
which direction goes to zero degrees. If the arrow on the side of the scale window that is
near the front bumper of the truck is pointing down to the ground and the arrow on the
other side of the scale window is pointing up. Then the reading would be positive caster.
Please refer to the figure below to describe further.
6.) If the reading is being taken on a non-level surface, please use the “To Measure Front to
Rear Tilt for Caster” procedure to compensate for non-level surfaces.
7.) After taking the caster reading on one side of the truck, please proceed to read caster on
the other side by using the same procedure starting at step 3.
Negative Caster
Positive Caster
Содержание TLT Series
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