Repairing General Conditions - Dacia 1304 2004 Repair Manual

40
The replacement ( reparation ) operations of the weldable elements described in this
chapter are specified subject to: removing of the parts to be replaced, access to the welded
elements, tools and checking devices accessibility, etc.
In case the vehicle body has suffered important deformations it is recommended the
straightening of the damaged body elements, by means of some hydraulic presses, the
operation being performed slowly and at cold.
For this range of vehicles, the elements resistance structure which is affecting the
vehicle security, are not to be partially replaced ( not to be cut ), but entirely.
After welding detaching, the body elements must remain straight, without breakage or
cracks, the possible holes being covered out with filling material or by tinning. The body
elements surfaces are to be pickled ( to eliminate possible oxidation marks) , dried and
initially applied a paint layer.
The electric welding detaching of the body elements, is performed as follows:
- with a well sharpen chisel, this method may lead to parts deformation or even parts
breaking.
- by using some extractors equipped with steel cutter type BREN DEO or
PICKVANT max. 6 mm, having the cutting head as per shape shown in fig.1.
1. Centering point
2. Sharpen slope
3. Drill acting edges
4. Gap for catching the welding material
P = cca. 4 mm
Whatever method is used, the remaining element must be in good order and to allow
performing of a good quality welding point.
The plates cutting it is recommended to be performed ( subject of importance and
thickness ) using manual scissors or pneumatic portable tools for plates cutting.
During cutting or welding of the body elements it is necessary to protect the electric
wiring from the interior of the body structure.
The cutting, welding, or strengthening operation done on body welded el e ments, are to
be performed on body checking/ straightening bench type CELETTE .
When removing or straightening the body resistance elements it is forbidden the
total or partial heating with flame, in order to avoid the mechanical resistance decreasing
and of the metal elasticity.
GENERAL

REPAIRING GENERAL CONDITIONS

IMPORTANT !
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1
P
3
2
4