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G-Tech Handy
Instruction manual (GB)
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Contents
1. Manufacturers recommended use
1.1 Safety
2. Drawings & parts description
3. Application
4. Technical data & contents of standard package
5. Before use:
5.1 Selection of grinding position
5.2 Selection of electrode diameter
5.3 Selection of grinding angle
6. Using the G-Tech Handy
6.1 Operating the G-Tech Handy
6.2 How to grind the electrode
7. Maintenance:
7.1 Replacing the filter.
7.2 Replacing the diamond wheel
8. Parts diagram
9. Parts list
10. Declaration of conformity
11. Declaration of warranty
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1. Manufacturers recommended use
G-Tech Handy has been designed for the sole purpose of grinding
tungsten electrodes. Any use, which is not described in this manual,
is strictly prohibited.
It is very important that the user reads and understands the contents
of this instruction manual.
1.1 Safety
Check that the machine is undamaged.
Do not use the machine without the filter.
Change the filter in accordance with the instruction manual.
Only turn the machine on when the electrode holder is in the
grinding chamber.
Do not remove the electrode holder before the motor has come to
a complete stop.
Repairs and maintenance must only be carried out by authorised
personnel.
Do not use the machine in humid places.
Only use original replacement parts.
Unplug the machine from the main supply before any maintenance
work is undertaken.
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2. Drawing & parts description
6
20
2
12
15
1.1
Electrode holder guide
Eccentric plate to select
Grinding position
Grinding head
Depth setting gauge.
Allen screw to tighten
the grinding head
On/Off switch
25
26
25.2
25.3
Filter housing
Angle degree
scale
(1 step= 5 °)
Filter cassette
Machine
number
Filter cover
Allen screw to
fix the filter
cover
1.2
Power cable
1
Motor
Adjustment of
turning speed
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6
Electrode
holder guide
22
Knurled wheel
29
Inspection
Cover
19
Allen screw
14
Grinding stop
3
Diamond wheel
5
Spindle for
diamond
wheel
5 Electrode holder Stop
Electrode clamps (see table below for ordering numbers)
16.1 for 1.0 mm
16.2 for 1.6 mm
16.3 for 2.0 mm
16.4 for 2.4 mm
16.5 for 3.2 mm
16.6 for 4.0 mm
Electrode clamp
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3. Application
G-Tech Handy is manufactured to offer the following options:
Grinding of oxidated or pure tungsten electrodes.
Grinding electrodes with diameters from 1,0 – 4,0 mm.
Variable angle adjustment from 15° to 180°.
If it is necessary to grind electrodes shorter in length than 15mm–
a special electrode clamp can be supplied.
Integrated filter to remove the grinding dust.
To be able to grind tungsten electrodes on site.
To achieve an exact and longitudinal ground tip.
4. Technical data & contents of standard package
Motor: 850 Watt
Power: 230V, 50 Hz. Insulation according to EEC 50144.
Rpm: Adjustable between 7000 and 32000
Weight: 2.5 kg
Filter: Inhalation filter.
Diamond wheel: Ø 40 mm
• G-TECH HANDY
- Motor Type 850E
- Grinding head with filter housing and filter
- Diamond wheel Ø 40 mm
- Electrode holder
- Electrode clamps 1.6, 2.4, 3.2 mm
• Tools
- Allen key 8 mm
- Allen key 4 mm
- Spanner 13/17 mm
- Spanner 13/14 mm
• Plastic bag to remove the filter
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5. Before use
Note: Ensure that the grinding head (2) is centred and tightly fixed
with the allen screw (15) to the motor.
5.1 How to select grinding position
With the G-Tech Handy it is possible to select 3 different grinding
positions
Unscrew the knurled wheel (22)
Lift the eccentric plate (20) and turn through 90° to the next
position, place the eccentric plate back in the slide of the angle
adjustment.
Tighten the knurled wheel (22)
Eccentric plate to select the grinding position
1
(left mark)
Inside grinding
position
2
(centre mark)
Centre grinding
position
3
(right mark)
Outside grinding
position
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5.2 Selection of electrode diameter
There are 3 different electrode clamps (1.6, 2.4, 3.2 mm) supplied
with the machine.
Unscrew the electrode clamp from the electrode holder and replace
with the required size.
5.3 Selection of angle
Loosen slightly the knurled wheel (22).
Place the degree sign of the guide (20) at the selected angle.
Tighten the knurled screw (22).
Note: 15° are the smallest included angle of the electrode that
can be ground.
180° position makes a flat on the electrode point.
(1 step = 5°)
6. Using the G-Tech Handy
Connect the machine to the power supply.
Adjust the machine speed according to the recommendations on
page 8.
Select the electrode clamp to suit the tungsten to be ground.
6.1 How to operate G-Tech Handy
Place the tungsten electrode in the electrode holder (5) with
approximately 35 mm protruding.
Push the electrode clamp into the depth setting gauge (12) until
the clamp is located into the allen screw (15), turn clockwise to
tighten.
Put the electrode holder through the electrode holder guide (6)
until the tungsten is touching the diamond wheel, this operation
can be observed through the inspection cover (29).
Start the motor (11).
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6.2 How to grind the electrode
Turn the electrode holder, whilst pushing the electrode against the
diamond wheel. Do not push too hard in order to avoid blueing of
the electrode. This can be viewed through the inspection cover
The grinding is completed when the stop of the electrode holder
(14) touches the end face of the electrode holder guide (6).
Switch off the motor and remove the electrode holder when the
motor has come to a complete stop.
Place the electrode holder in the depth setting gauge. Turn anti
clockwise and the electrode can be removed.
Recommended turning speed
Diam. of the electrode 1.0 mm 1.6 mm 2.0 mm 2.4 mm 3.2 mm 4.0 mm
Speed adjustment 66554 4
Note: Do not press too hard at the electrode holder before the
stop (14) has been reached.
Remember to put the electrode holder into the grinding
chamber before you start the machine and to keep it there
until the motor has stopped. (Otherwise grinding dust may
come out of the chamber).
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7. Maintenance
Remove the plug from the power supply before carrying out any
maintenance or repairs.
7.1 Replacing the filter
The filter has to be changed when the amount of dust makes it
difficult to watch the grinding process through the inspection cover
(29).
1. Loosen the allen screw (25.3) at the filter housing (25).
2. Remove the filter cover (25.2).
3. Remove the filter cassette (26) and put it into the plastic bag for
disposal.
4. Insert a new filter cassette so that the rubber seal is sitting tight
to the grinding head (2).
5. Mount the filter cover and tighten the screw.
7.2 Replacing the diamond wheel
1. Remove the electrode holder (5).
2. Loosen the knurled screw (22)
3. Unscrew the electrode holder guide (14) using the spanner (SW
17)
4. Remove the grinding chamber (10) including the inspection
cover (29).
5. Unscrew the nut retaining the diamond wheel, using the
spanners (SW14 & SW13), two flats are located on the motor
spindle behind the diamond wheel for this purpose.
6. Remove the diamond wheel.
7. Insert a new diamond wheel and replace the retaining nut.
8. Replace the grinding chamber and inspection cover
Replace the electrode holder guide
9. If the grinding head chamber is too dirty it can be cleaned with
an alkalised solution and rinsed with water. If doing so
remember to remove the filter first
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8. Parts diagram
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9. Parts list
Pos: Description: Quantity Item no:
G-Tech handy 230V 50HZ 0700009883
G-Tech handy 230V 50HZ UK 0700009884
G-Tech handy 110V 60HZ (CSA) 0700009885
1 Motor 1 piece
1.1 On/Off switch 1 piece
1.2 Power cable 1 piece
1.3 Brush for motor 2 pieces
2 Grinding head 1 piece
3 Diamond wheel Ø 40 mm 1 piece 0700009028
5 Electrode holder 1 piece 0700009030
8 Spindle for diamond wheel (SW 13) 1 piece
10 Grinding chamber 1 piece
14 Guide for electrode holder (SW 17) 1 piece
15 Allen key to tighten the grinding head 1 piece
16 See below
16.2 Electrode clamp Ø 1,6 mm 1 piece 0700009031
16.4 Electrode clamp Ø 2,4 mm 1 piece 0700009032
16.5 Electrode clamp Ø 3,2 mm 1 piece 0700009033
19 Allen screw (M5 x 30) 1 piece
20 Eccentric plate to select grinding position 1 piece
22 Screw 1 piece
25 Filter housing 1 piece
25.2 Filter cover 1 piece
25.3 Allen key to fix the filter cover (M 5 x 6) 1 piece
26 Filter kit 1 piece 0700009029
29 Inspection cover 1 piece
31 Spring 1 piece
32 Rubber seal big 1 piece
33 Screw to fix filter cassette 4 pieces
34 Sticker „G-Tech Handy“ 1 piece
35 Safety sticker 1 piece
36 Degree scale 1 piece
37 Screw to fix diamond wheel (M 8, SW 13) 1 piece
38 Rubber seal small 1 piece
Accessories:
39 Case for machine with foam 1 piece
40 Spanner (SW 13, SW 17) 1 piece
41 Spanner (SW 13, SW 14) 1 piece
42 Allen key 8 mm 1 piece
43 Allen key 4 mm 1 piece
44 Plastic bag for disposal of filter 1 piece
16.1 Electrode clamp Ø 1,0 1 piece 0700009034
16.3 Electrode clamp Ø 2,0 1 piece 0700009035
16.6 Electrode clamp Ø 4,0 1 piece 0700009036
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10. Declaration of conformity
In accordance with the directive of machinery 98/37/EG, IIA
The machine: Type: G-TECH HANDY
Machine No. ______________________
Year: ______________________
is developped, designed and manufactured according to the above
mentioned EEC directive.
Responsible:
Manufacturer: Esab AB
Esabvägen
S-69581 Laxå
Tel.: + 46 584 81000
Following harmonized norms have been used:
• DIN EN 292 - 1
• DIN EN 292 – 2
• DIN EN 294
Person responsible:
Title:
Name:
Date:
Signature:
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11. Warranty certificate
User:
Street:
Zip, City:
Company Country:
Article – No.:
Description:
Machine No..:
Date of purchase:
Error:
City, date Signature:
In case of warranty claims please forwards this certificate to:
Esab AB
Esabvägen
S-69581 Laxå
Fax + 46 584 81448
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