Introduction; General - Car-O-Liner CTR9 Instruction Manual

CTR9

1 Introduction

1.1

General

Support arm [3]
Control
C-Tong [2]
panel [5]
Welder unit [1]
Electrode yokes [4]
49023, EN - rev. 4, 2020-01
The CTR9 is a medium frequency spot welder, designed for body shops to
replicate the welding procedure used by car manufacturers. It consists of a
welder unit [1] fitted with a C-Tong [2], a support arm [3] that suspends the
C-Tong and holds the electrode yokes [4], a control panel with display for
welder settings [5]. The multi-function gun, an optional accessory, can also
be used by connecting it to the welder.
For safety reasons, it is important to understand the design and function of
the inverter welder before using it:

The CTR9 uses electricity only to create the welds, unlike the MIG
welder that uses an arc from a feeding wire that forms a weld nugget
out of the material in the feeding wire. A weld is created when high
current is transferred through the metals; the resistance in the metals
heats it up and fuses the metals together in a nugget.

The CTR9 C-Tong also has a built-in pneumatic feature that presses
the welding electrodes together automatically when triggered.
Electrode force is an important ingredient in a good resistance weld.
The pressure setting is visible in the control panel display and can be
automatically or manually set.

The timer controls the duration of the current applied to the weld.
The ideal is to try to attain a weld that uses higher current and
shorter time and therefore reducing heat buildup.

By automatically keeping the pressure after the current shuts off, the
weld cools down under pressure and therefore forms a hardened and
stronger weld.
IMPORTANT! The CTR9 welder may only be used by qualified personnel.
The user of the welder must have knowledge of spot welding and of
alignment of collision-damaged vehicles.
WARNING! Always use the handle to move the welder. Do not pull the
cable or the tong to move the welder. The welder might tip, causing personal
injuries or serious damage to the welder. When moving the machine, the
C-Tong must be fixed at the intended holder (on the side of the machine)
and must not hang on the support arm. A swinging tong might cause
personal injuries or material damage.
Car-O-Liner Group AB
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