Preset torque screwdrivers improve productivity by consistently applying the correct torque value to each fastener. Preset torque screwdrivers are ideal for fastening applications where operators repeatedly assemble parts at the same torque setting. A preset screwdriver doesn't have an external torque adjustment scale. These tools have an internal torque adjustment mechanism for setting and preseting the torque value using a hex key and a torque analyzer. The locking mechanism prevents accidental torque setting changes. Designed for industries where production errors aren't acceptable, the poka-yoke torque screwdriver prevents over-torque events.
FG PRESET TORQUE OPERATING INSTRUCTIO OPERATING INSTRUCTIONS
PRESET TORQUE SCREWDRIVER
Rev 1.0 (2/1/2024)
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Adjusting the Torque Setting for a Preset Value The FG has no external adjustment scale and must be preset using a torque analyzer or torque sensor. If the tool has not been preset to a set torque value, then follow using the screwdriver. 1. Use a 5mm hexagonal key and remove direction. Also, remove the T-bar (for FG 2. Use a 2 mm hexagonal key to loosen the adjuster locking screw by 1/4 slightly disengaged. It's important to note that a complete turn is excessive and may restrict the available hex depth. (Note: This step does not apply to the FG Preset Value set torque value, then follow the directions for adjusting the torque setting before emove the end cap from the screwdriver anti-clockwise (for FG-40i and FG-125i models only). to loosen the adjuster locking screw by 1/4 - 1/3 turn until the available hex depth. (Note: This step does not apply to the FG-8i model.)
3. Insert the 5mm hexagonal key into the adjuster and turn clockwise. Turn the hex key clockwise to increase torque and counter onal key into the adjuster and turn clockwise. Turn the hex key clockwise to increase torque and counter-clockwise to decrease the torque.
4. Once the required torque value is reached, tighten the locking screw to 10 mm hexagonal key. Caution, overtightening the locking screw may damage it or result in the incidental turning of the adjustment screw. Once the required torque value is reached, tighten the locking screw to 10 lbf.in using the 2 tion, overtightening the locking screw may damage it or result in on the Torque Analyzer to confirm the torque setting. Do not adjust torque above or below the recommended torque ranges for the torque screwdriver or cap back on using a 5mm hexagonal key. adjust the torque setting while the screwdriver is connected to a torque sensor as you can over-torque and damage the sensor. 5. Take 10 consistent readings on the Torque Analyzer to confirm the torque setting. Do adjust torque above or below the reco torque analyzer. Tighten end-cap back on Note: Do not adjust the torque setting while analyzer or torque sensor as you can over
Applying Torque 1. Tighten fastener or bolt by applying steady twists. The s with the axis of the bolt during tightening. When pre will 'slip.' 2. The screwdriver will automatically reset itself for the next application. 3. With its unique cam-over design, it's impossible to over l automatically reset itself for the next application.
olt by applying steady twists. The screwdriver should be kept in line bolt during tightening. When pre-set torque is reached, the screwdriver
s impossible to overtighten beyond the preset load.
SILICON VALLEY HEADQUARTERS 1080 North 11th Street, San Jose, CA 95112 | Phone: (408) 292 1080 North 11th Street, San Jose, CA 95112 | Phone: (408) 292-2214 | Fax: (408) 292-2733 | mountztorque.com
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Calibrating Torque Screwdrivers To calibrate a torque screwdriver, either use a torque analyzer or torque sensor within the range of the torque screwdriver. For a torque screwdriver calibrate torque in "Peak" mode with a torque tester or torque sensor. Make sure to apply the torque slowly and smoothly. 1. Select a torque tester or torque sensor that covers the torque range of the screwdriver. Connect the screwdriver to the
torque tester or torque sensor using the appropriate adapters as needed. 2. Apply torque clockwise slowly until screwdriver 'slips' and note reading. 3. Adjust screwdriver to required torque setting as described above. 4. Test and repeat adjustment as necessary to obtain the desired torque value. 5. Recalibrate torque screwdriver at prescribed intervals.
Maintenance Schedule Like an automobile, torque screwdrivers contain moving parts that require periodic servicing and lubrication.
Expected Tool Life With normal use – 1,000,000 operations
Period Between Resetting of Torque 20,000 fastening operations. It is acknowledged that some tools may achieve 20,000 operations in a relatively short period of time. Under these circumstances, the user may decide, with the benefit of their experience, to increase the period between calibration intervals. Routine Maintenance After 100,000 operations, strip, clean, and re-grease the spring, bearings, and internal components. Any worn components should be replaced. Note: Any tool that is dismantled during its life must be re-lubricated in accordance with the Mountz recommendations. Do not clean tools by immersing them in a solvent, as this will destroy the internal lubrication and cause the tool's failure.
Testing and Servicing Torque tools go out of calibration with use. Calibrating a torque tool is a fine-tuning process of bringing the tool back within its tolerance. Regular torque calibration of a hand screwdriver ensures accuracy, repeatable tool performance, and adherence to international standards. We recommend a general once a year calibration interval. However, the user's organization must determine suitable intervals based upon equipment performance, application, degree of usage, and management objectives. Mountz Calibration and Repair Services Mountz Inc. features an experienced calibration and repair staff. Our trained technicians can calibrate and repair almost any tool. Mountz provides rapid service with quality that you can trust as we offer two state-of-the-art calibration labs and repair facilities that can calibrate up to 20,000 lbf.ft. About Mountz Mountz, The Torque Tool Specialists ® , has been a leader in the torque tool industry for more than 58 years. Engineered in the Silicon Valley and serving the globe, Mountz focuses on delivering high-quality torque products, services, and solutions to ensure customers can always proceed with confidence. We are committed to forging a safer world through precision and accuracy and by innovating every day.
Mountz Service Locations
Eastern Service Center 19051 Underwood Rd. Foley, AL 36535 Phone: (251) 943-4125 Fax: (251) 943-4979 Western Service Center 1080 N.11th Street San Jose, CA 95112 Phone: (408) 292-2214 Fax: (408) 292-2733 UK Service Center Pier Copse Courtyard, Milland Lane, Liphook, Hampshire, GU30 7JN, UK Phone: 00 44 1428 741756
www.mountztorque.com
SILICON VALLEY HEADQUARTERS 1080 North 11th Street, San Jose, CA 95112 | Phone: (408) 292-2214 | Fax: (408) 292-2733 | mountztorque.com
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