Lincoln Electric SVM143-A User Manual
Dh-10 heads & controls, Operator’s manual svm143-a, Boom mount or bench models
DH-10 Heads & Controls
Boom Mount or Bench Models
OPERATOR’S MANUAL
SVM143-A
March, 1999
Safety Depends on You
Lincoln arc welding and cutting
equipment is designed and built
with safety in mind. However, your
overall safety can be increased by
proper installation ... and thought-
ful operation on your part. DO
NOT INSTALL, OPERATE OR
REPAIR THIS EQUIPMENT
W I T H O U T R E A D I N G T H I S
MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED
T H R O U G H O U T . And, most
importantly, think before you act
and be careful.
For use with: DH-10 Control - Boom Mount Code 10357
DH-10 Drive - Boom Mount Codes 10358 (Std.), 10359 (Hi/Std.)
DH-10 Boom Package Codes 10380, 10495, 10496 (Std.), and 10517, 10518, 10519 (Hi/Std.)
Standard - Single Head Drive Codes 10190, 10191
DH-10 Feeder Double Head - Bench Model Codes 10360 (Std.), 10361 (Hi/Std.)
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RETURN TO MAIN INDEX
Document Outline
- Table of Contents
- Safety
- Section A Installation
- Section B Operation
- Section C Accessories
- Section D Maintenance
- Section E Theory of Operation
- Section F Troubleshooting and Repair
- Symptoms
- Neither drive motor turns when the gun triggers are activated. The displays are lit and the correct input...
- One side’s drive motor does not turn, although the arc voltage is present and the gas solenoid...
- There is NO control of wire feed speed on one side only. Both motors turn, both gas solenoids...
- No control of wire feed speed on both sides. Both motors run, both solenoids operate and arc voltage...
- The wire feeds and the gas solenoid operates but no arc voltage is present.
- The wire feed speed does not change when welding current is established.
- The voltmeter does not function properly. The welding may vary from normal performance. The wire...
- The “Cold Feed Forward” and/or the “Cold Feed Reverse” buttons do not function properly. Both...
- The “Gas Purge” button does not activate the gas solenoid. The gas solenoid operates properly in other modes.
- The “Feeder” button does not function. The feeder head can be selected by pulling the appropriate...
- The “Procedure” button does not function properly.
- The “Timer”, "Control” and/or “Trigger” buttons do not function correctly.
- One of the encoder control knobs functions but the other one does not.
- Neither encoder control knob functions.
- The DH-10 is dead. The displays and LEDs on the keypad are off . The green and red LEDs on the control board are not lit.
- The displays and LEDs on the keypad are off. The green and red LEDs on the control board are both...
- The displays and LEDs on the keypad are off. The green and/or red LEDs on the control board are...
- The wire feed is consistent and adjustable, but operates at the wrong speed.
- The wire feeds for a few seconds and stops. The voltage display reads less than 8 VDC while the wire is feeding.
- The dual procedure switch is not functioning at the gun on either side of the DH-10.
- The dual procedure switch functions properly when attached to one side of the DH-10 but will not operate on the other side.
- An “Er” message is displayed when the DH-10 is powered up.
- A “GLP” message is displayed.
- When the gun trigger is activated the wire feeds and arc voltage is present but gas does not flow.
- The preset arc voltage does not match the actual voltage.
- The preset WFS does not match the actual WFS.
- The wire is feeding rough or not feeding, but the drive rolls are turning.
- The contact tip seizes in the gun liner.
- The welding arc is variable or “hunting”.
- Poor arc striking with sticking or “blast-offs”. The bead may be narrow, ropey and have porosity.
- Section G - Electrical Diagrams