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7.12.
HEATING AND SHEET UPSETTING.
For these operations the timer is “OFF”. the duration is thus determined by the operator.
Current is controlled automatically according to the sheet thickness.
Mount the carbon electrode (fig 7.12) on the studder spindle and lock in place by tightening the nut ring.
Touch the carbon face of the electrode on the work area and press clamp push-button. Operate from the outside towards the inside of
the work area, using circular movements, to heat the sheet which will go back to its original position. In order to prevent the sheet from
tempering too much, work on a small area and, when finished, immediately wipe with a wet cloth to cool.
7.13.
INTERMITTENT SPOT WELDING (PATCHING).
To weld small rectangular pieces of sheet over holes caused by corrosion or minor damage. Mount the electrode (fig 4. 5) on the
studder spindle and tighten ring nut.
Position the patch piece and reset the electrode on it - press the clamp push-button and keep it pressed. Move the electrode during
each ‘pause’ in the weld/pause cycle provided by the machine.
The work/pause cycles are controlled automatically by the spot welder according to sheet thickness.
Keep a light pressure on the electrode (3-4kg) and weld along a line ideally 2-3mm in from the edge of the new piece.
7.13.1. TO ACHIEVE GOOD RESULTS
DO NOT move more than 300mm from ground point.
Use sheet of 0.8mm maximum thickness
Only move electrode during the ‘pauses’ - never when welding.
7.14.
EXTRACTOR (fig 7.1)
Mount and lock the hook spindle (fig 7. 3) onto the extractor (fig 7.1). Hook washer (fig 7.13), previously welded as section 7.10,
and begin traction. When finished rotate the extractor through 90
8. MAINTENANCE
p WARNING! DO NOT remove any panels without first switching the machine off and unplugging the unit from mains power supply.
8.1.
Periodically, depending on environmental conditions, remove panels and clean dust and metallic particles from inside the welder using
dry, compressed air at no more than 10bar pressure (wear safety eye protection and dust mask).
Avoid directing compressed air at the electronic circuit board - rather clean with a soft brush and suitable solvents.
8.2.
Check all cables are in good condition with undamaged insulation and clean un-oxidised connectors.
8.3.
Check that screws connecting the transformer secondary circuit to the welding cable taps are secure and do not show signs of
overheating or oxidation.
8.4.
If the welder is not operating correctly check the following before contacting your service agent.
a) With welder connected to mains supply and welder mains switched ‘OFF’ green LED should be ON. If not there is a supply fault or
supply voltage is too low.
b) That the microswitch in the clamp is operating correctly and signalling the electronic circuits - green (welding ) LED on.
c) Thermal protection has not triggered (yellow LED flashed).
d) The connections in the secondary circuit (fuse, arm holders, arms, electrode holder), are not producing high resistance due to
loose screws or oxidised contact surfaces.
e) The electrode face diameter and electrode pressure being used are appropriate to the weld being produced.
Declaration of Conformity We, the sole importer into the UK, declare that the product listed below
standards and directives.
SPOT WELDER
MODEL ELECTROSPOT 7000
73/23/EEC LV Directive
89/336/EEC EMC Directive
NOTE:
It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior notice.
IMPORTANT: No liability is accepted for incorrect use of this equipment
WARRANTY: Guarantee is 12 months from purchase date, proof of which will be required for any claim.
INFORMATION: Call us for a copy of our latest catalogue on 01284 757525 and leave your full name and address including your postcode.
01284 757500
to break off washer.
O
The construction file for
and may be inspected on request by contacting Jack Sealey Ltd
Signed by Mark Sweetman
For Jack Sealey Ltd. Sole importer into the UK of Sealey
Sole UK Distributor
Sealey Group,
Bury St. Edmunds, Suffolk.
01284 703534
is
in conformity with the following EEC
this
product
is
held by the Manufacturer
1st September 1999
Power Welders
E-mail: sales@sealey.co.uk
Electrospot 7000 - 0051 - (1) - 200999
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