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• Do not operate this unit empty.
• When using the unit at a distance where an extension cord becomes necessary, a 3-conductor grounding cord of
adequate size must be used for safety, and to prevent loss of power and overheating. Use only a UL listed extension
cord suitable for outdoor use. Make certain wire size is large enough for A/C amperage rating of unit.
Operation
To load oven, open latch on lid and simply place desired amount of electrodes in oven. The oven capacity is 50
lbs. of 18” electrodes.
To turn on the unit, simply plug the 8’ UL listed power cord into power source of appropriate voltage. Oven may
be operated on direct current
IF AMPLE VOLTAGE IS AVAILABLE. (Check name plate for voltage.) Unit will not heat
to capacity without appropriate voltage.
On 240V models, the plug is not supplied due to the many different receptical configurations in the field. When
attaching the plug to the power cord, be sure the plug is an approved component and is rated for the proper voltage and
amperage. All units meet electrical code requirements when used with a grounding plug and a grounded receptical.
Temperature Setting
The model K-50 oven is thermostatically controlled oven with a temperature range of 100º-300ºF. The thermostat
is factory preset at 275ºF, but it is field adjustable. To change thermostat setting, see “Corrective Maintenance” section.
Guide to Storage
See the enclosed guide to storage. This guide may be used in the absence of storage information from the
electrode manufacturer. In critical situations, contact your electrode manufacturer.
Functional Description
The K-50 oven is a portable oven that holds 50 lbs of 18” electrodes. The oven may be used to transfer welding
electrodes from a holding oven to a job site or continuously as a small holding oven.
Scheduled Maintenance
The manufacturer recommends that the unit be unloaded and cleaned of debris and dust every three months by
removing the plunger from center tube and turning unit upside down and tapping gently on bottom. It is recommended to
inspect the power supply cord for damage at this time. Replace cord if damaged.
Troubleshooting
The Keen oven model K-50 requires a minimal amount of electrical knowledge to repair if necessary.
IF OVEN FAILS TO OPERATE – NO HEAT
1.
Check power source.
2. Check power cord continuity. Replace cord assembly if faulty.
3. If power supply cord checks out, disconnect oven from power supply and remove bottom cover and insulation.