Chery QQ - Reference Point - Symmetry; Reference Points; Diagnostic Information and Procedures; Inspection of Alignment

Chery QQ Service Manual Body System
2.5.2.7 Reference point --- symmetry
Symmetrical reference points
Symmetrical reference points refer to the two corresponding points which are located
symmetrically on the centerline with same length, width and height; you can make use of the
symmetrical reference points to carry out high-speed check-up, so as to make sure that the
damage degree of bottom configuration parts of the vehicle body.
2.5.2.8 Reference points ___nonsymmetrical
Non-symmetrical reference points
The two points are non-symmetrical reference points when the two points possess different
dimensions. If you carry out high-speed check and the result measuring values are different, you
must check the measuring value according to the standard dimensions of vehicle body to see
whether or not the measuring points are symmetrical.
2.5.3 Diagnostic information and procedures
2.5.3.1 Inspection of alignment
You should make sure the alignment of bottom vehicle body with measuring gauge, while
carrying out the recommended measurement and check, measuring gauge assembly must include
the vertical indicator which stretch out 914mm.The following measurement can be carried out
with the measuring gauge:
● Point-to- point direct measurement
● Carry out computation measurement on the datum line of the level surface which is parallel to
the bottom vehicle body.
Set up one of the following indicator accordingly for every measuring point:
- Height indicator
- Verticality indicator
Measure point-to-point distance on the following parts:
● Steering parts of front structure
● Suspension parts
Make sure that the vertical indicator is set up similarly
Under some certain circumstances, you can use one of the following tools to measure the
point-to-point distance directly:
● Tape measure
● Suitable measuring tools
Measure the dimension from the hole to the following positions:
● Forward position or core of the hole
● Aligning with the neighboring surface metal see “measurement – bottom vehicle body” for
reference, understand the following installation:
● measuring points arranged in alphabetical order
● Conversional data of dimension changing from the metric system to avoirdupois system
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Chery Automobile Co., Ltd