Tweco 100XL Plus CE PAK Master - Manuel (Page 36)

SERVICE 5-4 Manual 0-2813
C. How to Use This Guide
The following information is a guide to help the Cus-
tomer/Operator determine the most likely causes for
various symptoms.
This guide is set up in the following manner:
X. Symptom (Bold Type)
Any Special Instructions (Text Type)
1. Cause (Italic Type)
a. Check/Remedy (Text Type)
Locate your symptom, check the causes (easiest listed first)
then remedies. Repair as needed being sure to verify that
unit is fully operational after any repairs.
A. AC Power indicator OFF
1. Switch at customer's main power panel in OFF posi-
tion.
a. Close main power panel switch
2. Input power cable not properly connected to customer's
main power panel
a. Check that input power is present and unit is
properly connected (refer to Section 3.05, Pri-
mary Input Power Cable Connections)
3. Customer's main power line fuse(s) blown
a. Check main power panel fuse(s) and replace
as required.
4. Faulty components in unit
a. Return unit to an authorized service center for
repair or have qualified technician repair per
Service Manual.
B. AC Power indicator ON; TEMP indicator ON
1. Airflow obstructed
a. Check for obstructed air flow and correct con-
dition.
2. Fan blocked
a. Check and correct condition
3. Unit is overheated
a. Allow unit to cool down for about 5 minutes.
Make sure the unit has not been operated be-
yond duty cycle limit.
4. Input line voltage is below 75% of rated level
a. Check and connect to proper input power line
5. Faulty components in unit
a. Return for repair or have qualified technician
repair per Service Manual.
C. Torch will not pilot when torch is activated (hand
pendant or CNC start signal)
1. RUN/SET/LATCH switch in SET position
a. Move switch to RUN position.
2. Faulty torch parts
a. Inspect torch parts and replace if necessary (re-
fer to Instruction Manual supplied with torch).
3. Gas pressure too high or too low
a. Set pressure to 70 psi (4.8 bar).
4. Faulty components in unit
a. Return for repair or have qualified technician
repair per Service Manual.
D. AC Power indicator ON; Fans operating; Torch
Trigger activated; No cutting output
1. Torch not properly connected to power supply
a. Check that torch leads are properly attached
to power supply
2. Shield cup not properly installed on torch
a. Check that shield cup is fully seated against
torch head (do not overtighten if screwed on)
3. Faulty components in unit
a. Return for repair or have qualified technician
repair per Service Manual.
4. Faulty torch
a. Return for repair or have qualified technician
repair per Torch Instruction Manual.
E. Low cutting output with no control
1. Incorrect setting of CURRENT control
a. Check and adjusted to proper setting.
2. Faulty components in unit
a. Return for repair or have qualified technician
repair per Service Manual.
F. Limited output with no control
1. Poor input or output connections
a. Check all input and output connections.
2. Incorrect setting of CURRENT control
a. Check and adjusted to proper setting.