Henkel KEEN K-50 User's Manual
Contents
1. 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 100 300 F The thermostat is factory preset at 275 F 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 Ibs 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 fa2. 25 EXX10 two hours one hour EXX Gate SS DE 80 F 20 E 5 EXX12 60 10 RH 140 F 30 EXX13 Three hour total EXX20 EXX30 Iron Powder 180 F 25 325 F 25 EXX14 90 F 20 5 two hours one hour EXX24 50 RH max Ee EXX27 Three hour total Iron Powder 180 F 25 700 F 100 Low H ydrogen 90 F 20 400 F 50 ___twohours __ _one half hour 4 EXX18 307 Rimax Two amp one half hour total EXX28 i Low H ydrogen 5 f 180 F 25 600 F 100 EXX15 BA 400 F 50 two hours __one halfhour__ EXX16 A Two amp one half hour total Low H ydrogen 180 F 25 700 F 100 High Tensile 90 F 20 two hours one half hour EXXX15 50 RH max Oe Wier seg ee a EXXX16 Two amp one half hour total Stainless 180 F 25 350 F 50 Inconel one hour one hour Monel ee aa EE AE Nickel 90 F 20 5 pa Brasses 50 RH max 225 F 50 Bronzes Two hour total Hard Surfacing Special Alloys Granulated or 90 F 20 F 100 Agglomerated 50 RH max 240 F 50 Not required H eae Flux u 70401 IMPORTANT This table is offered as a guide to proper storage and oven holding temperatures for the most common electrodes in use today In addition recondition rebake procedures for electrode coatings that have been exposed to moisture for a sufficient period of time to affect the weld quality are included Good judgment and the manufacturer s recommendatio
3. ATION amp ADJUSTMENT 1 Follow instruction numbers 1 2 and 3 from Changing the Thermostat 2 Thermostat is readily visible in bottom of oven Use small screwdriver and turn set screw Turning set screw clockwise decreases temperature Turning set screw counter clockwise increases temperature One fourth 1 4 turn equals approximately 35 F 3 Replace insulation and bottom of oven Model K 50 Repair Parts List ITEM QUANTITY DESCRIPTION PART NUMBER 1 1 Elements 120V 301019 240V 301020 2 1 Power Cord 301155 3 1 Handle 430103 4 1 Bottom Cover 100204 5 1 Thermostat 120V 301024 240V 301024 6 1 Neon Pilot Light 301085 7 1 Strain Relief 301043 8 1 Name Plate 450103 K 50 ACCESSORIES LIST Please state model number and serial number and specify voltage and wattage when ordering repair parts spare parts or accessory parts All necessary attaching hardware is supplied with each part ordered Item numbers refer to pictorial drawings below for repair parts LN Flux and Electrode Stabilizing Guide HENKEL INC Manufacturer of KEEN Ovens Quality Since 1923 Phone 985 345 2171 Fax 985 345 5653 PO Box 1322 Hammond Louisiana Air Conditioned Dry Rod After Exposure to Moisture a Type AWS Storage Oven Holding Sufficient Time to affect Weld Quality ype Before Oren After Opening Recondition Rebake Step 1 Step 2 Standard 180 F 25 240 F
4. eral Information The K 50 Keen oven is a portable unit designed for use in the shop or field This oven will protect electrodes from moisture during transfer from a holding oven to the job It is light and easy to carry The square shape gives this oven greater stability vertically and horizontally It is made of steel treated then painted with a chemical resistant blue paint All Keen ovens are Mercury free Keen Ovens Model K 50 Specifications Electrode Capacity 50lbs 18 rods Volts Specifiy 120V or 240V AC DC Current Draw 1 25 amps Watts 150W Thermostat Factory Preset Field Adjustable Temperature Preset 275 F Range 100 F 300 F Insulation 1 Interior Dimensions 6 X6 X19 H Net Weight 20lbs Shipping Weight 21lbs Shipping Dimensions 10 5 X 9 X 22 75 Safety Precautions Read all instructions completely before attempting to operate this unit ek SAVE THESE SAFETY INSTRUCTIONS To reduce the risk of electrical shock fire or personal injury follow the guidelines below Before connecting unit to a power source be sure the voltage supplied is the same as that specified on the name plate of the unit Check outlet to ensure proper grounding of the electrical cable Have a licensed electrician check the A C power outlet if you are not sure Use this unit for its intended purpose as described by literature Make sure power cord is located so that it will not be stepped on tripped over or otherwise subjected t
5. ne O REG U S PAT OFFICE Henkel Inc P O Box 1322 Hammond LA 70404 985 345 2171 www keenovens com fand 2 ml V T 5 an NS Rd Henkel Inc P O Box 1322 Hammond Louisiana 70404 985 345 2171 www keenovens com Model K 50 Portable Oven Installation Instructions amp Repair Parts List One Year Limited Warranty Henkel Inc warrants its products against defects in material and workmanship Henkel Inc will either repair or replace without charge any properly installed product which fails under normal operating conditions within one year from date of installation provided it is returned to our factory transportation prepaid and our inspection determined it to be defective under the terms of this warranty The warranty covers only equipment manufactured by Henkel Inc and does not extend to transportation installation or replacement charges at the buyers facility nor does it apply to any other equipment of another manufacturer used in conjunctions with Henkel Inc equipment No other warranty expressed or implies exists beyond that included in this statement PCPS Peo eee ESOS EEE EE EEE EEE EERE ETOH EET OEE OEE EEE OESE EEE EEE EEO EESEE TEESE EEEEEH EEE SESE ESE SESE OE ESOL EEE E EE EE EES Recommended Spare Parts When it is critical to have continuous operation of this unit we suggest having the following spare parts on hand Heating Element Power Cord Thermostat Gen
6. ns should be your guide Note In the HTS Stainless electrode groups and 15 amp 16 type coatings there can be a greater difference in the maximum temperature requirements for rebaking than those shown This can be handled by special request to the particular manufacturer involved CONTACT YOUR ELECTRODE MANUFACTURER FOR SPECIFIC INFORMATION INVOLVING CRITICAL OPERATIONS Electrode coating should not be exposed to the rebaking temperature without first having been reconditioned at a lower temperature Failure to observe this rule will result in breakdown of electrode coatings After rebake lower temperature to holding level until reissue
7. o stress of heat oil or sharp edges Do not close doors on the cord To reduce the risk of damage to the electric plug and cord disconnect by plug rather than by the cord Do not use this unit if cord or plug is in poor condition If it has been exposed to weather or immersed in water have a qualified serviceman inspect and replace parts as necessary WARNING NEVER HANDLE PLUG CORD OR UNIT WITH WET HANDS OR WHILE STANDING IN WATER Use special care when moving heavily loaded units Do not store combustible material on or around the unit e Do not operate this unit empty e 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 Ibs 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
8. ulty 3 If power supply cord checks out disconnect oven from power supply and remove bottom cover and insulation 4 Remove the two leads from thermostat terminals and check for continuity across terminals If continuity is not present between thermostat terminals replace thermostat See Corrective Maintenance section 5 Ifthermostat is good check continuity of element If continuity is not present replace element IF OVEN OVERHEATS 1 If oven overheats adjust thermostat See Temperature Setting section 2 If thermostat calibration fails to lower temperature replace thermostat See Corrective Maintenance section CHANGING ELEMENT Corrective Maintenance 1 Disconnect power source 2 Remove two screws from bottom of oven 3 Remove bottom cover and insulation CHANGING THE THERMOSTAT Rewire as in diagram SP Sy SN He ee Bo a Disconnect from the power source Remove two screws from bottom of oven Remove bottom corner and insulation Disconnect wire terminals on thermostat Remove old thermostat and replace with new one THERM stat 4 Disconnect wires on heating element 5 Remove old element and replace with new one 6 Rewire as in diagram 7 Replace insulation and oven bottom Replace insulation and bottom making sure wires are insulated from element Model K 50 Wiring Diagram yao Q N ELEMENT THERMOSTAT CALIBR
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