Mountz FG User manual

SILICON VALLEY HEADQUARTERS
1080 North 11th Street, San Jose, CA 95112 | Phone: [phone] | Fax: [phone] | mountztorque.com
1
FG PRESET TORQUE SCREWDRIVER
OPERATING INSTRUCTIONS
Rev 1.1 (9/6/2019)
The FG has external no 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 the directions for adjusting the torque setting before using the screwdriver.
Adjusting the Torque Setting for a Preset Value
1. Use a 5mm hexagonal key and remove end cap with from screwdriver anti-clockwise
direction. Also, remove the T-bar where fitted (for FG-40i and FG-125i models only)
2. Use a 2.0mm hexagonal key to loosen the adjuster locking screw by 1/4 - 1/3 turn until
slightly disengaged. A full turn is too much and will hinder the available hex depth. Insert
the 5mm hexagonal key into the adjuster and turn Clockwise. Turn hex key clockwise to
increase torque and counter clockwise to decrease torque. Tighten the locking screw to
10 lbf.in using the 2.0mm hexagonal key once required torque value is reached. Caution,
overtightening the locking screw may damage it or result in incidental turning of the
adjustment screw.
3. Take 10 consistent readings 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 torque analyzer. Tighten end-cap back on using a 5mm hexagonal key.
Note: Do not adjust the torque setting while the screwdriver is connected to a torque
analyzer or torque sensor as you can overtorque and damage the sensor. The FG-8i
model does not have a set screw within the adjustment screw.
Applying Torque
1. Tighten fastener or bolt by applying steady twists. Screwdriver should be kept at 90
degrees to axis of bolt during tightening. When pre-set torque is reached, the screwdriver
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 tighten beyond the preset load.
Calibrating Torque Screwdrivers
To calibrate torque screwdrivers either use a torque analyzer or torque sensor within the range
of the torque screwdriver. For torque screwdrivers 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 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 desired torque value.

SILICON VALLEY HEADQUARTERS
1080 North 11th Street, San Jose, CA 95112 | Phone: [phone] | Fax: [phone] | mountztorque.com
2
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 solvent, as this will destroy the internal lubrication and cause failure of the tool.
Warranty
We’ve tested the FG preset torque screwdrivers over two million cycles in our controlled lab environment and we still can’t
break them!
It’s why we have an industry-leading warranty.
•Mountz FG tools are the only cam-over drivers on the market to offer a two-year unlimited warranty. If it breaks in any
way, we’ll fix it or replace it for free.
•Lifetime guarantee against manufacturing defects. We only make the highest quality products. This driver will not have a
defect, we stake our quality reputation on it.
•Warranty includes a free first calibration within the first year (if needed).
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, it is the user’s organization that 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 most any tool. Mountz provides rapid service with quality that you
can trust as we offer two state-of-the-art calibration lab 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 50 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: [phone]
Fax: [phone]
Western Service Center
1080 N.11th Street
San Jose, CA 95112
Phone: [phone]
Fax: [phone]
www.mountztorque.com