Thermal Dynamics CutMaster 75, Руководство по эксплуатации

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Manual 0-2868 5-3 SERVICE
5.03 Common Faults
1. Insufficient Penetration
a. Cutting speed too fast
b. Torch tilted too much
c. Metal too thick
d. Worn torch parts
e. Cutting current too low
f. Non-Genuine Thermal Dynamics parts used
2. Main Arc Extinguishes
a. Cutting speed too slow
b. Torch standoff too high from workpiece
c. Cutting current too high
d. Work cable disconnected
e. Worn torch parts
f. Non-Genuine Thermal Dynamics parts used
3. Excessive Dross Formation
a. Cutting speed too slow
b. Torch standoff too high from workpiece
c. Worn torch parts
d. Improper cutting current
e. Non-Genuine Thermal Dynamics parts used
4. Short Torch Parts Life
a. Oil or moisture in air source
b. Exceeding system capability (material too thick)
c. Excessive pilot arc time
d. Gas pressure too low
e. Improperly assembled torch
f. Non-Genuine Thermal Dynamics parts used
5.04 Basic Troubleshooting Guide
WARNING
There are extremely dangerous voltage and power
levels present inside this unit. Do not attempt to
diagnose or repair unless you have had training in
power electronics measurement and troubleshoot-
ing techniques.
A. Basic Troubleshooting: Overview
This guide covers basic troubleshooting that requires lim-
ited disassembly and measurements. It is helpful for solv-
ing many of the common problems that can arise with this
system.
If major complex subassemblies are faulty, the unit must
be returned to an authorized service center for repair.
Follow all instructions as listed and complete each sec-
tion in the order presented.
For major troubleshooting and parts replacement proce-
dures refer to Power Supply Service Manual 0-2860.
B. How to Use This Guide
The following information will help the Customer or Op-
erator determine the most likely causes for various symp-
toms. Follow all instructions as listed and complete each
section in the order presented.
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; be sure to verify
that unit is fully operational after any repairs.
C. Common Symptoms
A. AC Power indicator OFF
1. Switch at customer's main power panel in OFF posi-
tion.
a. Close main power panel switch.
2. Customer's main power line fuse(s) blown
a. Check main power panel fuse(s) and replace as
required.