wurth MM 230, Original Operating Instructions

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12
Proper use
The appliance is designed to weld steel, aluminium
and alloys both in commercial and industrial
environments.
The user is liable for damage resulting
from improper use.
Appliance protection
The appliance is electronically protected against
overload. However, the step switch should not be
actuated when under load. Before welding, close
the side covers and connect the workpiece to the
appliance using the workpiece line.
Remove weld spatter from the inside wall of the gas
nozzle using suitable special pliers. Spray the inside
wall of the gas nozzle with a parting agent or use
nozzle protection paste. This prevents welding spat-
ter from burning-in. Spray at an angle so as to avoid
clogging of the shielding gas outlet holes.
When loading the appliance it must be lifted using
the handle provided. Do not use the casing to lift the
appliance with a forklift or similar equipment.
Components
Welding machine (fig. I)
1 Welding torch
2
Safety chain
3
Shielding gas cylinder*
4 Gas container valve*
5
Pressure gauge
6 Flow meter
7
Pressure reducer
8 Shielding gas hose
9
Setting screw
10 Castor roller
11
Side cover
12 Ground clamp
13
Central socket
14 Central plug
15
Workpiece line
16 Ground connection
17
Controls
18 Handle
19
Tray
* not included in the scope of delivery
4-wheel feed (fig. II)
20 Pivot arm
21
Wirefeed button
22 Lever
23
Feed nozzle
24 Wirefeed roll
25
Adjustment screw
Wire spool (fig. II)
26 Wire pick-up
27
Spool
28 Wire brake
29
Nut
Wire electrode conversion (Abb. IV)
30 Nipple (= clamping part) for the PTFE or
plastic feeding core with an outer diameter of
4.0 mm / 4.7 mm
31 O ring 3.5 x 1.5 mm to prevent escape of gas
32
Union nut
33 PTFE and plastic feeding core
34
Supporting pipe for PTFE and plastic feeding
core with an outer diameter of 4 mm replaces
the capillary steel pipe in the central connector.
When the outer diameter is 4.7 mm, the pipe is
not used.
Controls (fig. V/VI)
35 Temperature control indicator
36
Power supply indicator
37 Rotary controller for spot welding time
38
Rotary controller for wirefeed
39 Mode switch
40
Main switch
41 Step switch
BGV Check
(German Accident Prevention Association)
The operating company of commercially used weld-
ing equipment is obliged to have the appliances
checked in accordance with directive EN 60974-4
at regular intervals appropriate for the frequency
of use. Würth recommends having the appliance
checked every 12 months.
Additional safety checks have to be performed after
modifying or repairing the appliance. Improper
checks for compliance with accident prevention
regulations may result in the destruction of the appli-
ance. Please contact an authorised Würth service
point for more information on checking the compli-
ance with accident prevention regulations.