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TROUBLE SHOOTING THE WOOD WELDER
TROUBLE SHOOTING THE WORKRITE ELECTRONIC WOOD WELDER
to rough handling the hand unit may go out of tune. This will minimize the welder's energy output
and cause arcing.
Tune hand unit to generator unit.
the hand unit in the air (not on the wood), pull the trigger, and move thumb
adjuster forward then backward.
the milli-amp meter on the front of the welder. It should correspond with the thumb lever. Meter needle must move 10 milli-amps (between two divisions) to be in
tune. If the needle moves more than two divisions, pull the 14-turn
coil apart slightly. If needle does
NOT move at all, push the coil together slightly.
NOT UNSCREW COIL. The
14-turn coil is located inside the hand unit box. No components within the hand
unit should touch each other, as this will cause arcing and rob the power.
cable from welder to hand unit should be inspected. The shielded woven ground on the outer part of the cable may be worn
through or broken loose.
center should be un-soldered and cable cut back.
center portion and re-clamp outer woven grounded portion to the connector.
unit must be tuned each time the coaxial cable is shortened.
COAXIAL CABLE MUST BE 13' IN LENGTH
Note: If after all these steps, the meter still gives low or no milli-amp
reading, see WARNING BELOW: REMOVE POWER CORD FROM WALL BEFORE OPENING REAR OF
CABINET OR REPLACING ANY PARTS. Remove
the back of welder and depress interlock switch. Watch lower #866-A tubes. IN ALL
MODELS PRIOR TO 1984, tubes should glow "blue" when the trigger is
pulled. If the glow is not
"blue" replace tube with a solid-state 866-S and rewire diagram. Late model 1984 and newer models have SOLID STATE 866-S and may not
need replacement. These tubes do not glow
blue. They appear as black posts.
OF DANGEROUS ELECTRICAL SHOCK. REMOVE POWER CORD FROM
WALL BEFORE OPENING REAR OF CABINET,
BEFORE REPLACING ANY PARTS OR PUTTING HANDS
INTO REAR OF CABINET.
a screwdriver with an insulated handle to ground any stored electrical charge.
Touch screwdriver to inner condenser plate (connected to tube top) and at the
same time touch outer condenser plate (screwed to chassis) to ground any stored
electrical high voltage. Tube can then safely be replaced. EACH TIME MACHINE IS
PLUGGED IN AND TESTED THIS SAFETY PROCEDURE MUST BE REPEATED.
meter goes to top of scale as soon as hand unit trigger is
WARNING: REMOVE POWER CORD FROM WALL BEFORE OPENING REAR OF
CABINET OR REPLACING ANY PARTS.
the trigger and watch the upper #810 tubes. Look for tube glowing red, arcing, filament burned out. Even if there is no visible symptom, replacement of the
#810 tube may be required.
NOTE: If welder is operated with one faulty #810 tube, it will over work
other tubes, which could also become inoperative. All trouble shooting is done in conjunction with the milli-amp
meter. Watch meter from time to time to avoid extensive repairs. Your welder is a push/pull type circuit. Trigger should be released - the same amount of time as it is
depressed. Complete your project. Set the hand unit down and position your next project. This will insure longer tube life. Spot-weld your assembly - 5 seconds will set the glue
properly. Longer periods will overheat the glue and be less adhesive.
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