Pro Spot PR-8 User manual

Instruction Manual
PR-8
2000-08
US
GB
- approved

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Pro Spot PR-8
GB/US/2000-08 PRO SPOT
Preface
The photographs and drawings in this manual are merely illustrative and do not necessarily
represent the actual appearance of equipment available. The equipment is designed to be
used in accordance with established practices and in observation of applicable safety re-
gulations. The design of the equipment presented in this manual may be changed without
prior notice.
You have just bought a Pro Spot PR-8.
The use of microprocessor control in our vehicle body welding equipment has
many benefits. It means, for example, that a wide range of features is available to
the operator.
The microprocessor is programmed in the same way as an ordinary computer. It
includes software that enables the operator to control energy input to suit the
particular application or conditions. Repair work quality can be checked with an
acoustic signal, while a display helps the operator to control and set up the
machine.
Read this instruction book to appreciate how versatile the Pro Spot PR-8 is.

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Pro Spot PR-8
GB/US/2000-08 PRO SPOT
A. Safety
A1 Warnings, important notes
and information 3
A2 Safety signs 4
A3 Placement of safety signs 5
B. Installation
B1 Connection to the power unit 6
B2 Maintenance 6
C. Function selection
C1 Operating mode 7
C2 Control pushbuttons (modes 1-5) 7
C3 Control pushbuttons (mode 6),
automatic program 8
D. Operation
D1 Welding tools 9
D2 Mode selections 9
- Swaging, heating – graphite arc tool 9
- Washer, stud and single-sided welding 9
- C & X tongs, double-sided spot welding 9
- Automatic control and special programs 10
D3 Fitting the welding device 12
D4 Fitting the earth connection 14
D5 Welding gun with single electrode 15
D6 Setting the welding current 16
E. Trouble shooting
E1 Welding problems 17
E2 Error list 18
F. Technical specification
F1 Technical data 19
F2 Block Diagram 20
F3 Diagram 21
G. Spare parts 23
H. C-tong Situations 27
Contents

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Pro Spot PR-8
GB/US/2000-08 PRO SPOT
A1. Warnings, important notes and information
Follow these safety rules to ensure safety for the operator and other persons.
In addition to the safety signs shown on page 5, the following warnings and important notes
will be found elsewhere in these instructions.
Warning! Make sure you know where fire extinguishing
equipment is.
Important! Risk of damage to materials close to the weld,
e.g. glass or textiles.
Important! Ensure that all electrical equipment within the working
area is disconnected. Beware risk of interference.
Important! When in Operating Mode 4, the earth connection
must be made to the supporting body sheet and not to the part to
be welded.
Important! The user must have the necessary knowledge for
use of this equipment.
REMEMBER GENERAL FIRE SAFETY!
Pay attention to the fire safety regulations. Welding is always classified as a fire risk
operation.
Welding where there is flammable or explosive material is strictly forbidden.
Remove flammable material from the immediate vicinity of the welding site.
Fire extinguishers must always be on site where welding is taking place.
NOTE: Sparks may cause fire many hours after completion of welding.
WATCH OUT FOR THE MAIN VOLTAGE!
Take care of the cables - the connection cable must not be compressed, touch sharp edges
or hot work pieces.
Faulty cables are always a fire risk and highly dangerous.
Do not locate the welding machine on wet surface.
A. Safety

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Pro Spot PR-8
GB/US/2000-08 PRO SPOT
A2. Safety signs
Blue with white symbol.
Directive - Prescribes a specific obligation
Yellow with black symbol.
Warning - Warning for danger.
A. Safety
Warning: Appropriate eye protection
must be worn when using this equipment.
Protective gloves, clothing and shoes
must be worn when using this equipment.
Warning: Risk of tripping: loose hoses, cables etc.
Undamaged safety signs must always be positioned at the places indicated.
If any sign is damaged or missing, the user must ensure that it is immediately replaced by a
new sign. Safety signs are available as spare parts.
Warning: All electrical work on the power unit (connec-
tion, service and installation) must be performed only by
authorized personnel. Disconnect the supply before per-
forming any service or installation work.
Warning: Sparks from welding could start a fire.