JOSAM AM34 A Bedienungsanleitung
Manual
JOSAM laser AM
Measuring system
®
©
ALIGNMENT OF
WHEELS AND AXLES
JOSAM laser AM
Measuring system
2
Introduction
The following things should be checked
before wheel and axle measurements are
taken:
• Tire pressure
• Tires (are the correct tires mounted or are
different types of tires mounted on the same
axle).
• Bearing play
• Unnecessary play in kingpins, steering
gear, and the balancing arms support on
support axle vehicles.
• The attachment of the axles (play in
spring-eye bolts, shackles, broken center
rivets, broken springs and loose spring
straps).
• Worn torsion bar bushings
If any of the above mentioned points are not
correct, these should be fixed before procee-
ding with the measurements.
Check of bearing play and bushings with JOSAM play detector AM 900:K
JOSAM laser AM
Measuring system
3
Title Page
Introduction.................................................................................... 2
MEASURING EQUIPMENT............................................................ 4-9
PREPARATIONS BEFORE MEASURING..................................... 10-25
Checking of frame gauge................................................................ 10-11
Wheel adapter and laser projector, description and calibration....... 12-15
Wheel alignment gauge AM301, description and calibration........... 16-17
Hanging the frame gauges.............................................................. 18-19
Toe-in/toe-out - calculations in mm/m............................................. 20
Toe-in/toe-out - calculations in degrees/minutes.............................. 21
Toe-in/toe-out - calculations in mm/bead of rim............................... 22
The Test Report Sheet..................................................................... 23-25
MEASUREMENT OF RIGID AXLES............................................... 26-36
With measuring scale....................................................................... 26-27
With sliding scale............................................................................. 28-29
Out of square axles (the second axle)............................................. 30-31
Toe-in / toe-out................................................................................ 32-33
Out of square axles (the first axle)................................................... 34-35
Measurement of camber.................................................................. 36
MEASUREMENT OF FRONT AXLES............................................ 37-53
Wheel angles for front axles............................................................ 37
Centering of steering box when it is marked................................... 38
Centering of steering box when it is not marked.............................. 39
Toe-in/toe-out with measuring scale and sliding scale.................... 40-43
Measurement of out of square front axle.......................................... 44
Measurement of camber ................................................................. 45
Measurement of caster.................................................................... 46-49
Measurement of KPI........................................................................ 50-53
Measurement of toe-out on turn (TOOT)......................................... 54
Measurement of maximum turn....................................................... 55
INDEX
JOSAM laser AM
Measuring system
4
Measuring equipment
Frame gauge with hangers as well as gauge
extensions with sight pins.
NOTE! The hangers are to be correctly placed with
the straight side or cut side on the outside.
The frame gauge with stepless adjustable
attachment for the hangers.
Gauge extension with bubble for checking the
adjustment of horizontal for the frame gauges.
Measuring scale AM34 A.
Attach the gauge extension sight pin.
Sliding scale AM84 A.
Sliding scale attached to the measuring scale.
JOSAM laser AM
Measuring system
5
Measuring equipment
Trailer tow bar adapter AM48 A.
Attaches in the towing eyelet for gauge extensions
and measuring scales.
Adapter for kingpin AM69.
Attaches to kingpin for hanging the frame gauge.
Magnet bracket for frame gauge AM172.
Attaches on sides of frame for hanging frame
gauges.
Magnet bracket for frame AM1227-1 and 2.
For hanging frame gauges on vehicles with short
overhang.
JOSAM laser AM
Measuring system
6
Measuring equipment
Wheel adapter AM10 and AM8.
AM10 for 16” – 24” wheel.
AM8 for 13” – 19” wheel.
Diode laser AM20-D1.
Battery-driven rechargeable laser projector.
Attaches to the axle of the wheel adapter.
Wheel alignment gauge AM301.
Measuring instrument for camber, caster and KPI.
Attaches on the axle of the wheel adapter.
Spirit level AM542.
For checking of the horizontal on axle or frame.
Hanger AM98.
Magnetic hanger for the spirit level.
AM TOOL SET.
Tool set for the adjustment of the steering box.
AM TOOL SET
JOSAM laser AM
Measuring system
7
Measuring equipment
Turn angle gauge AM135.
Together with the laser projector measures maxi-
mum wheel turn, toe-out on turn, as well as posi-
tion for KPI and caster.
Turn plate AM585.
Designed to measure maximum turn, toe-out on
turn, as well as KPI and caster.
Compensation ramp AM931.
For example, compensation for height of the back
wheel when turn plate AM585 is used.
Non-friction plate AM268.
To be placed under wheel when adjusting toe-in or
toe-out.
Brake rod AM325.
To be placed between the brake pedal and seat in
order to brake the wheel during KPI measurement.
Calculation/database software AM1515 for use in
Windows as a complement to measurement test
report AM39.
JOSAM laser AM
Measuring system
8
Turn angle gauge AM135
Description
Turn angle gauge AM135 is, together with the laser
projector, designed to measure the maximum turn,
toe-out on turn, and the fixed values for KPI and
caster.
Measuring scales can slide along the base.
(1) The measuring scale's 0-line.
(2) The intersectional point of the 0-line.
For measurement using turn angle gauges AM135,
the axles are lifted so that the wheel rolls freely
approx. 10 mm from the floor. The caster value
will be insignificantly altered.
JOSAM laser AM
Measuring system
9
Turn angle gauge AM135
Hang frame gauge, gauge extensions and
measuring scales.
Jack up the axle.
Attach wheel adapters and laser projector.
Run-out of the wheel can be compensated with the
adjustment knobs on the adapter
Place the turn angle gauges on the floor for both
the left and right sides, with a centered scale and
in the middle of the wheel.
Position left, and alternatively, right wheel in a
straight ahead position with the laser projector.
Equal values on the front and rear measuring
scales.
Align turn angle gauges on both sides with laser
dot on the 0-line of the measuring scale. Move
measuring scale along the profile and check at
both ends that the laser dot hits the 0-line.
Turn wheel
Align the laser dot on the 0-line (1) of the
measuring scale.
Move measuring scale until laser dot hits the
intersectional point of the 0-line (2).
Align the laser dot on the degree scale and read
the value.
JOSAM laser AM
Measuring system
10
Frame gauge
Checking the frame gauge
Mount hangers at both ends.
Both hangers should be placed with the straight
side or the cut side facing out.
They should hang at the same height.
Check that the numerical marks are aligned with
the upper edge of the end piece.
Lock with the knob.
Move together the guide rails on the frame gauge.
Both ends should face toward the housing.
Check that the guide rails are easy to move back
and forth on the housing.
Dieses Handbuch passt für folgende Modelle
17
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