Case Front Controls - Lincoln Electric LN-25 PRO DUAL POWER Service Manual

B-5

CASE FRONT CONTROLS

Figure B.1
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2
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ITEM DESCRIPTION
1 Wire Feed Speed/Amperage Display
2 Wire Feed Speed LED
3 Amperage LED
4 Wire Feed Speed Knob
5 5 pin gun trigger connector
6 Work Clip Connection
7 Thermal LED
8 Voltage Display
9 Voltage LED
10 Set-up Push Button
11 Remote Voltage Control Knob
83% FUNCTIONALITY (for Innershield®
Pipeline welding)
With a special Gun, the LN™-25 Pro incorporates 83%
functionality. This feature allows for the reduction of the
wire feed speed to 83% of the original set value when
activated with a second switch (usually in the gun). The
100% wire feed is adjusted using the wire feed speed
knob on the front of the machine, and is displayed on
the right LED. When the reduced wire speed switch
(mounted on the gun handle) is in Position No. 1, the
wire speed feed will be that figure indicated on the dis-
play. In Position No. 2, the wire feed speed will be 83%
of the figure indicated on the display.
OPERATION
1. WIRE FEED SPEED/ AMPERAGE DIS-
PLAY
7
2. WIRE FEED SPEED LED
(See displays in Item 1 for LED functions.)
8
3. AMPERAGE LED
(See displays in Item 1 for LED functions.)
9
4. WIRE FEED SPEED KNOB
(See displays in Item 1 for LED read out.)
10
5. 5-PIN GUN TRIGGER CONNECTOR
11
Control Cable plugs into from Gun and Cable
Assembly.
6. WORK CLIP CONNECTION
Connects to the work piece.
7. THERMAL LED
Thermal LED, Motor Overload The
thermal light illuminates when the wire
drive motor draws too much current. If
the thermal light illuminates, the wire
drive will automatically shutdown for up
to 30 seconds to allow the motor to cool. To start
welding again, release the gun trigger, inspect the
gun cable, liner (and conduit). Clean and make
repairs as necessary. Start welding again when the
problem has been safely resolved.
For best results, keep the gun cable and conduit as
straight as possible. Perform regular maintenance
and cleaning on the gun liner, conduit and gun.
Always use quality electrode, such as L-50 or L-56
from Lincoln Electric.
8. VOLTAGE DISPLAY
(See displays in Item 1 for Voltage functions)
9. VOLTAGE LED
(See displays in Item 1 for LED functions.)
10. SET-UP PUSH BUTTON
11. VOLTAGE KNOB
This knob allows you to control the power source
output arc voltage level.
LN-25™ PRO DUAL POWER
B-5