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TECHWRENCH November 30, 2005 TECHWRENCH® CALIBRATION (NON-MEMORY MODELS) ong>Calibrationong> events are recorded in the wrench memory and provide evidence to void factory certification. Contact your ong>Snapong>-on sales representative for authorized calibration and repair services. Use this procedure to calibrate the following TECHWRENCH Models: TECH1R240 TECH1FR240 TECH1J240 TECH1JD240 (240 in-lb full-scale) TECH2R100 TECH2FR100 TECH2Y100 TECH2YD100 (100 ft-lb full-scale) TECH3R250 TECH3FR250 TECH3X250 TECH3XD250 (250 ft-lb full-scale) TECH4R600 TECH4Z600 TECH4ZD600 (600 ft-lb full-scale) All non-memory “SJ” models Equipment Required: A static torque source, accurate to within 0.5% of reading. Refer to ong>Snapong>-on TTC2000/2800 Torque ong>Calibrationong> Systems or VERSATEST250/600 Torque Testers. ong>Snapong>-on fixed-square drive adaptors, (round shank insert tools) QJSD8A, QYSD12A, QXSD16A and QZSD24A for the J,Y,X and Z models, respectively. NOTES: 1. If the wrench display shows "Err0" at power on, the wrench is damaged and must be repaired before attempting calibration. 2. When calibrating or checking flex-ratchet models, insure that the head is straight (nonflexed). 3. When calibrating or checking wrenches, always apply load (clockwise or counter-clockwise) at the appropriate “V” notch near the center of the handle. 4. Use its TRACK mode if calibrating or checking with an electronic torque tester. 5. Always calibrate with new “AA” cells installed. 6. If the ON/ZERO key is pushed any time before completing step 7 the wrench will escape from the calibration mode and default to the previous calibration parameters. 7. “SJ” models display “Nm” units of measure only. 8. Alert tolerance is programmable between ±1% and ±16% of the preset torque value on the “D” models. Early alert is fixed at –2% of the preset torque value on non-D models. (Refer to the instruction manual, 05-03 version or later, for details). ong>Calibrationong> Procedure 1. Push the ON/ZERO key to turn the wrench on. 2. Momentarily apply full-scale torque three times in the clockwise direction. 3. Select a unit of measure, “Nm,” “ft-lb,” or “in-lb,” by momentarily pushing the UNITS key. (See note 7 above). 4. While pushing and holding the ON/ZERO key, push the UP key once momentarily and then push and hold the DOWN key until the display shows "CAL." 5. With no torque applied, (completely remove the wrench from the torque source and wait at least 15 seconds) push the UNITS key once to set zero into memory. (If using an electronic torque tester, activate its zero tare function). 1