Tweco PakMaster 50XL Plus - Manual (Page 35)

Manual 0-2744 29 SECTION 5: SERVICE
3. Faulty components in unit
a. Return for repair or have qualified technician
repair per Service Manual.
G. 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
a. Use proper type and size cables.
H. AC Power indicator ON; Cutting output avail-
able; Fan not operating,
1. Fan blades blocked
a. Check and clear blades.
2. Faulty components in unit
a. Return for repair or have qualified technician
repair per Service Manual.
I. AC POWER indicator ON; Fan operating; No gas
flow
1. Gas not connected or pressure too low
a. Check source for at least 70 psi (4.8 bar).
2. Gas supply pressure too high
a. Maximum 125 psi inlet pressure
3. Shield Cup not properly installed.
a. Check to see that PIP pins are installed.
4. Faulty components in unit
a. Return for repair or have qualified technician
repair per Service Manual.
J. Torch cuts but not adequately
1. Drag Circuit active
a. Lift tip from work piece
2. Current set too low
a. Increase current setting.
3. Torch is being moved too fast across workpiece
a. Reduce cutting speed (refer to Instruction
Manual supplied with torch.
4. Excessive oil or moisture in torch
a. Hold torch 1/8 inch (3 mm) from clean surface
while purging and observe oil or moisture
buildup (do not activate torch).
5.05 Power Supply Parts
Replacement
WARNING
Disconnect primary power to the system before dis-
assembling the torch, leads, or power supply.
A. Left Side Panel Removal
1. Using a phillips head screw driver remove the two
screws which secure the left side panel (viewed
from front of unit) to the frame assembly.
Screws
(5 Places)
Left Side
Panel
A-01326
Ground Wire
Figure 5-3 Left Side Panel Removal
NOTE
There is a ground wire connection to the Left Side
Panel on the inside of the unit. There is no need to
disconnect the ground wire.
2. Loosen the three bottom screws then carefully pull
the Left Side Panel up and away from the unit to
gain access to the inside of the unit.
3. To reinstall the left side panel do the following:
a. Place the left side panel onto the frame and
slide the top edge under the lip on the top of
the right side panel.
b. Reinstall all the screws to secure the left side
panel.