Micro Torque Screwdriver Manual

Micro Torque Screwdriver Manual
Micro Torque Screwdriver Operating Instructions
Rev 3.3 (3/23/2017)
Torque Scale
Graduation Scale
Adjustment Ring
Calibrating Torque Screwdrivers
To calibrate torque screwdrivers either use a torque tester 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 Micro Torque
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 below.
4. Test and repeat adjustment as necessary to obtain desired value.
5. Recalibrate torque screwdriver at prescribed intervals.
Insert hex key
Adjusting Torque Setting (During Calibration)
1. Remove end cap from screwdriver and insert hex key.
2. Turn hex key clockwise to increase torque and counter
clockwise to decrease torque. Do not adjust torque above or
below the recommended torque ranges.
MT6, 9, 50 & 80 models are supplied with a T-Bar
1. Snap T-Bar into the slot located in the grip.
Setting and Applying Torque
1. Set desired torque on the scale. Pull down on the "Adjustment Ring"
and turn handle clockwise to increase torque and counter clockwise to decrease
torque on the scale. Align the desired torque value on the micrometer scale. Release
"Adjustment Ring."
2. Tighten nut 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.'
3. The screwdriver will automatically reset itself for the next application.
4. With its unique cam-over design, it's impossible to over tighten beyond the preset load.
Corporate Headquarters: 1080 North 11th Street, San Jose, CA 95112 Phone: (408) 292-2214 Fax: (408) 292-2733
Micro Torque Screwdriver Operating Instructions
Rev 3.3 (3/23/2017)
Maintenance Schedule
Like an automobile, torque screwdrivers contain moving parts that require periodic servicing and lubrication.
Expected Tool Life
With normal use – 100,000 operations
Period between Resetting of Torque
5000 operations (as recommended in BS EN 26789:1994). It is acknowledged that some tools achieve 5000 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 checks.
Routine Maintenance
After 100,000 operations, strip, clean & re-grease the Spindle, Cam & Roller. 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.
Tool Lubrication Chart for Micro Torque Screwdriver
Shell Stamina
EP2 Grease
Total Multis
Silicon Grease
RS 555-083
General Use
Ball Housing
Handle Threads
‘O’ Rings
Testing & Servicing
Torque tools go out of calibration with use. Calibrating a torque tool is a finetuning 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 & 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.
Since 1965, Mountz Inc. has proven in-depth knowledge of torque is reflected in our tool’s craftsmanship and our ability to provide solutions to both
common and uncommon torque applications. We perform calibrations in
accordance with ANSI/NCSL-Z540. Mountz is dedicated solely to the manufacturing, marketing and servicing of high quality torque tools.
Corporate Headquarters: 1080 North 11th Street, San Jose, CA 95112
Phone: (408) 292-2214 Fax:
(408) 292-2733
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
Twitter: @mountztorque
Download a “Service Form” and include a copy
when you send the tools in to be serviced.
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