Chery QQ Service Manual Body System
Chapter 2 Service of Car Body Sheet Metal
Work
2.1 Overview of maintenance for four doors and two lids
Car body mainly consists of various kinds of framework parts, panels and other parts,
technology of making door is the most complicated technology which touch upon parts stamping,
parts welding, parts assembly and unit assembly, requested dimension coordination and process
technique are very strict, therefore it is difficult to maintain the door, the standard of requested
quality is much higher; enough understanding the structure of door is very important for the
maintenance personnel to do the work smoothly.
2.1.1 Structure of door
Generally speaking, main components of door include accessories such as outside door panel、
inner door panel 、door sash、glass run channel、door hinge、door lock and door window .Inner
door panel is equipped with window lifter and door lock, partial inner door panel shall be
strengthened for security of assembly. In order to ensure safety, bumper shall be installed inside
the outside door panel. Combine inner door panel with outside door panel by means of revers,
adhere and seam welding, in connection with different stand force, weight of outside door panel
shall be light, stiffness of inner door panel shall be strong, so it can undertake considerable
impulsive force.
Main components of door unit is relatively less in amount, it consists of outside door panel、
inner door panel、glass slide、sash reinforcing slab 、door lock mount slab、hinge reinforcing slab
and bumper unit in the ordinary way; A typical diagram of door’s structure is illustrated as
follows.
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Chery Automobile Co., Ltd
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