Measurement Prerequisites; Measurement Bay Level; Vehicle Checking - Bosch FWA 9000 Original Instructions Manual

4. Measurement prerequisi-
tes
4.1

Measurement bay level

!
FWA 9000 is only to be used in conjunction with
approved lifts and adapters.
i
The permissible height difference must not be ex-
ceeded for the vehicle wheel support points on the
measurement bay (turntables and sliding bases) in
the transverse, longitudinal or diagonal directions.
i
The permissible measurement and working height
level must be maintained for lifts.
4
Abb. 11: Measurement bay level
No. Permissible height difference
1 Transverse direction at front (left to right)
2 Longitudinal direction (front to rear)
3 Transverse direction at rear (left to right)
4 Diagonal direction
(front/rear to left/right)
Tab. 2: Permissible height difference for wheel support points
Robert Bosch GmbH
1
2
3
Value
[mm]
≤ 1
≤ 2
≤ 1
≤ 2
Measurement prerequisites | FWA 9000 | 23 | en
!
Level checking must be performed by customer ser-
vice using an optical leveling device. There must be a
vehicle of average weight on the lift when checking.
i
If necessary, correct the height difference by leve-
ling the lift or by fitting turntable bases and sliding
plates in the case of an inspection pit measurement
bay.
4.2

Vehicle checking

Items to be checked on the vehicle (correct if necessa-
ry):
R
Same rim and tire size per axle
R
Inflation pressure and tread depth
R
Condition of suspension
R
Condition of steering arms, wheel bearings and
track rod joints
R
Distribution of test loads in vehicle
i
Information can also be found under "Preparation" in
the wheel alignment program.
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