Troubleshooting - Bahco TAWM Series Original Instructions Manual

TAWM SERIES

TROUBLESHOOTING

Note: If any of following issues persist, return wrench to a SNA Europe/Bahco repair center.
ISSUE POSSIBLE CAUSE
Dead/No batteries
Wrench does not turn on when
POWER button pressed.
Software glitch
Calibration required
Torque reading out of spec.
Incorrect head length entered
Wrench did not retain settings Batteries removed before setting were
while batteries were removed. saved in non-volatile memory.
Low battery
LOW BATTERY
Dead battery
REPLACE BATTERY
Torque applied while zeroing
Wrench over torqued
TORQUE ZERO
ERROR
Wrench improperly calibrated
Torque sensor failure
Wrench moving during zeroing
ANGLE ZEROING
--
SET STILL
Gyro unstable
ENTER button pressed during angle
ANGLE ZERO
zeroing (Aborted zeroing to access
ERROR
menus)
Over 125% of full scale torque applied
OVERTORQUE
Wrench rotated too fast during angle
ANGLE
measurement
ERROR
Calibration interval exceeded or invalid
CALL
date entered with calibration interval
NEEDED
enabled
Memory error
Torque uncalibrated
torque ucal
Angle uncalibrated
angle ucal
RESOLUTION
Replace batteries
Cycle power using end-cap
Recalibrate
Enter correct offset head length
Clear data, re-enter settings and press
and hold POWER button to power down
wrench before removing batteries.
Press ENTER button to continue using
wrench and replace batteries soon.
Press POWER button to turn off wrench
and replace batteries.
Remove torque and re-zero
Recalibrate
Recalibrate
Return to Factory
Place wrench on stable surface
Return to Factory
Press POWER button to re-zero
Cycle power using POWER button and
recalibrate
Press POWER button to re-zero
Calibrate wrench or press ENTER to
continue. Disable calibration interval if
not required.
Clear data memory
Calibrate torque
Calibrate angle
IMPORTANT INFORMATION
USE OF ADAPTORS, EXTENSIONS AND
UNIVERSALS
Anytime an adaptor, extension or universal is used
with a torque wrench in such a way that fastener
distance is different than torque wrench square drive
distance at calibration, an adjustment to head length
is required to get a proper fastener torque reading.
When using wobble extension or a universal, do
not exceed more than 15 degrees of offset from
perpendicular drive. Do not use a long extension
with flex-drive at full flex.
CALIBRATION
Contact your Bahco sales representative for
calibration services or refer to Calibration Manual.
CERTIFICATION
This torque-angle wrench was calibrated at factory
using angular displacement and torque measure-
ment instruments that are traceable to National
Institute of Standards and Technology (N.I.S.T.).
Torque parameters comply with ISO 6789:2003 and
ASME B107:300-2010 (B107.29). Note: no U.S. or
International Standards exist for angle wrenches.
Angle calibration was performed on an angle gage
with ±1 degree accuracy at each 45 degree in-
dexing point throughout 180 degrees of rotation.
IMPORTANT!
Calibration events are recorded in wrench
memory which provides evidence to void factory
certification.
MAINTENANCE / SERVICE
Clean wrench by wiping with a damp cloth. DO
NOT use solvents, thinners or carburetor cleaners.
DO NOT immerse in anything.
Service and repairs are to be done by SNA
Europe/Bahco Service Center only. Contact your
Bahco Torque Products representative.
Ratchet head repair kits can be ordered from a
Bahco Representative.
NOTES:
- If display shows persistent "TORQUE ZERO
ERROR" at power on, wrench is damaged
and must be returned for repair.
- If display shows "ANGLE ERROR" in angle
mode, fastener rotation speed has exceeded
capacity of wrench.
- Wrench must be held still during angle
zeroing. Motion is indicated by alternating
dashes "- -" on display
- Remove battery when stored for extended
periods (Note: clock will revert to default set-
tings).
BATTERY REPLACEMENT
Note: When replacing batteries, real-time-clock
will maintain date and time for 20 minutes.
Note: Turn end cap counter-clockwise to unscrew.
Batteries should be installed in carrier prior to car-
rier installation into wrench. Battery negative con-
tacts should be oriented with carrier springs.
Replace SLIM models with one single "AA" cell only
Unscrew end cap. Insert new cell
Negative (-) end Into end cap
Replace STD models with three "AA" cells only.
Unscrew end cap. Insert new cells
Positive (+) end into handle first
100% BATTERY LEVEL
50% BATTERY LEVEL
LOW BATTERY
LOW BATTERY
REPLACE BATTERY
REPLACE BATTERY
Note: When Replace Battery screen is displayed
wrench will no longer operate until batteries are
replaced. Only POWER button functions which
immediately turns off wrench.
MEMORY INDICATORS
DATA IN MEMORY
Less than 1500 torque and angle records
stored in memory.
MEMORY FULL
1500 torque or angle records stored in memory.
New records will not be recorded until memory is cleared
(on STD wrenches only).
New data will replace oldest record until memory is
cleared (on SLIM wrenches only)
MEMORY ERROR
Memory read or write error.
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