I have a Harbor Freight 91814 plasma cutter. I've had it for years and
it's been great machine. I used to use it almost every day. I lent it
to a now ex-'friend' and they returned it full of metal filings and
dead. The two big resistors on the PCB that are connected to the shell
of the nozzle have arced and burned away. I was able to buy a new PCB,
but it changed slightly. I had mine so long that there was a new rev.
on the PCB. The manufacturer changed it to use a remote cement
resistor.
So here's my problem. Harbor Freight cannot get the resistor. They
cannot tell me what resistance and wattage it is.
Does anyone out there own a HF 91814? If so, could you open the case
and see if your's is the on-board or remote resistor type. If it's the
remote resistor type, I need to know the resistance and wattage of the
resistor. And, where the leads from the resistor go, as mine has the
older type wiring harness and I need to update that bit of it.
If I can get this information, I can revive my happy little plasma
cutter.
Thanks in Advance,
Kay

5 minutes before your post Doug G posted how to access HF manuals.
Using his guide I tried http://www.harborfreight.com/manuals...1999/91814.pdf
and successfully got your manual. It doesn't have the resistor value but has an
assembly
diagram and an 800 number for tech help.
Art


"Kay" wrote in message
...
I have a Harbor Freight 91814 plasma cutter. I've had it for years and
it's been great machine. I used to use it almost every day. I lent it
to a now ex-'friend' and they returned it full of metal filings and
dead. The two big resistors on the PCB that are connected to the shell
of the nozzle have arced and burned away. I was able to buy a new PCB,
but it changed slightly. I had mine so long that there was a new rev.
on the PCB. The manufacturer changed it to use a remote cement
resistor.
So here's my problem. Harbor Freight cannot get the resistor. They
cannot tell me what resistance and wattage it is.
Does anyone out there own a HF 91814? If so, could you open the case
and see if your's is the on-board or remote resistor type. If it's the
remote resistor type, I need to know the resistance and wattage of the
resistor. And, where the leads from the resistor go, as mine has the
older type wiring harness and I need to update that bit of it.
If I can get this information, I can revive my happy little plasma
cutter.
Thanks in Advance,
Kay

Art,
Thank you for the info, but I've already accessed the manual online.
That's how I found out about the new resistor, as my older manual
doesn't show it.
I've also spoken to HF tech help and they can't tell me anything as
they discontinued the model and no longer have the documentation. I
guess it's been a couple years since they sold that model. That's why
I need a volunteer to open their 91814 and give a looksee. Hopefully
someone besides me has one.
Thanks!
Kay

On Oct 5, 9:09*pm, "Artemus" wrote:
5 minutes before your post Doug G posted how to access HF manuals.
Using his guide I triedhttp://www.harborfreight.com/manuals/91000-91999/91814.pdf
and successfully got your manual. *It doesn't have the resistor value but has an
assembly
diagram and an 800 number for tech help.
Art

"Kay" wrote in message

...



I have a Harbor Freight 91814 plasma cutter. I've had it for years and
it's been great machine. I used to use it almost every day. I lent it
to a now ex-'friend' and they returned it full of metal filings and
dead. The two big resistors on the PCB that are connected to the shell
of the nozzle have arced and burned away. I was able to buy a new PCB,
but it changed slightly. I had mine so long that there was a new rev.
on the PCB. The manufacturer changed it to use a remote cement
resistor.
So here's my problem. Harbor Freight cannot get the resistor. They
cannot tell me what resistance and wattage it is.
Does anyone out there own a HF 91814? If so, could you open the case
and see if your's is the on-board or remote resistor type. If it's the
remote resistor type, I need to know the resistance and wattage of the
resistor. And, where the leads from the resistor go, as mine has the
older type wiring harness and I need to update that bit of it.
If I can get this information, I can revive my happy little plasma
cutter.
Thanks in Advance,
Kay- Hide quoted text -

- Show quoted text -

On Sun, 5 Oct 2008 17:41:06 -0700 (PDT), Kay
wrote:

I have a Harbor Freight 91814 plasma cutter. I've had it for years and
it's been great machine. I used to use it almost every day. I lent it
to a now ex-'friend' and they returned it full of metal filings and
dead.

An observation: I hope you took pictures of the condition it was
returned in. Because you have cause.

When you get it fixed, send this ex-friend the repair parts bill.
And if you can't get it fixed and go buy a new unit, send him a big
bill for the value of a comparable new HF unit - then spend the
difference and go buy Miller or Thermodyne or something you can get
parts for.

If he has any honor at all, he'll make at least a half-hearted
attempt to make it right - but he's still off your Approved Tool Loan
list. And if he's a total dickhead about it, turn it into a Small
Claims suit - you loaned him the equipment in operable condition and
he broke it through deliberate neglect and misuse, IE filling it up
with metal shavings by aiming the backside of a Chop Saw or Band Saw
at it. It doesn't take a genius to know that is bad.

If the Small Claims judge has ever picked up a tool, you'll get your
judgment in about thirty seconds.

-- Bruce --