Tweco PakMaster 75XL Plus - Manual (Page 35)

Manual 0-2746 29 SECTION 5: SERVICE
a. Check and adjusted to proper setting.
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; Fans 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; Fans operate; 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 of 125 PSI inlet pressure
3. 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 five
screws which secure the left side panel (viewed
from front of unit) to the frame assembly.
Ground
Wire
Screws
(5 places)
Left Side
Panel
A-02468
Figure 5-1 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. 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.