Tweco PCM-120 Machine Torch - Manual (Page 40)

CUSTOMER/OPERATOR SERVICE 5-10 Manual 0-2698
3. Visually check that the torch switch wires, pilot
lead connection, and negative lead connections
are properly connected and in good condition (no
shorts or arcing).
• If problems are evident, repair or replace as
required.
• If there are no visual problems, then proceed
to Step 4.
4. Check the pilot lead, negative lead and switch con-
trol wires for opens from one end of the torch leads
to the other.
• If open, replace leads or open component of
the Torch Leads Assembly.
• If not open, then proceed to Step 5.
5. Check the pilot and switch control wires for shorts
to other components in the Torch Leads.
• If shorted, then replace Torch Leads.
• If not shorted, then proceed to Step 6.
6. Carefully reassemble the components and recheck
the completed assembly per paragraph ‘B’, Step
3 to confirm that the components have been prop-
erly assembled.
This completes the checks for the proper operation of the
Torch Head and Torch Leads.