Tweco PakMaster 50XL Plus (CE) - Manual (Page 34)

SECTION 5: SERVICE 28 Manual 0-2780
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 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, Input
Power Connections).
3. Customer's main power line fuse(s) blown
a. Check main power panel fuse(s) and replace as
required.
4. Actual input voltage does not correspond to voltage
selection inside unit
a. Check actual line voltage vs. voltage selection
(inside of unit)
5. Unit internal fuse blown or loose
a. If blown, double check input voltage vs. volt-
age selection (inside of unit) and replace fuse
per Section 5.05-B. If fuse blows again, return
unit to an authorized service center.
6. Faulty components in unit
a. Return 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 switch is activated
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; Fan 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 Service Manual (0-2751).
E. Low cutting output with no control
1. Torch tip touching workpiece, tip saver active.
2. Incorrect setting of CURRENT control
a. Check and adjusted to proper setting.
3. Faulty components in unit
a. Return for repair or have qualified technician
repair per Service Manual.
F. Erractic or improper cutting output
1. Poor input or output connections
a. Check all input and output connections.
2. Incorrect type and size cable on input or output