Husky H3DTWDIG User manual

3/8 in. Drive
Digital Display Click Style
Torque Wrench
Owner’s Manual Model No: H3DTWDIG
SAFETY RULES
1. STUDY THIS BOOKLET CAREFULLY BEFORE ATTEMPTING
TO OPERATE THIS WRENCH.
2. Never apply more torque than the maximum scale
reading.
3. This torque wrench is designed for manual tightening of
threaded fasteners only. DO NOT USE IT AS A NUTBREAKER
OR FOR ANY OTHER PURPOSE.
4. Over-torqued or defective fasteners and sockets may
suddenly break. Ratchets that are improperly engaged,
worn out, damaged, or over-torqued may slip or break.
TO PREVENT INJURY, KEEP PROPER FOOTING AND
BALANCE AT ALL TIMES. DO NOT USE THE WRENCH IN
PLACES FROM WHICH YOU MAY FALL OR SLIP, OR
AROUND OPERATING MACHINERY.
5. This wrench will not prevent you from applying more
torque than set, it is not a torque limiting tool. The LCD
display will flash “STOP” if you exceed either the lower or
upper limit of intended use. At low settings the release is
gentle and there usually is no audible ‘click’ signal. Learn
how different amounts of torque ‘feel’, so you will reduce
the possibility of damage and/or injury due to accidental
over-torquing.
6. APPLY FORCE TO THE GRIP ONLY. DO NOT USE ‘CHEATER
BARS’ (a piece of pipe placed over the hand grip).
7. There are no user-serviceable components inside the
wrench. Disassembling the wrench or making any
adjustments will result in the loss of accuracy, and will
void the warranty.
OPERATING INSTRUCTIONS
Before adjusting the wrench to the desired torque setting,
make sure that you are using the correct torque units.
Torque values may be displayed in units of Inch Pounds, Foot
Pounds, Newton Meters, or Centimeter Kilograms.
Your Husky Digital Style Click Torque Wrench is calibrated
in Foot-Pounds (default on the LCD display) and can be
changed to other units as desired.
WARNING: DO NOT turn the adjusting knob either below the
lowest scale reading or above the highest scale reading. The
LCD display will show torque settings beyond the calibrated
upper and lower limits of your torque wrench,these are
intended for adjusting purposes only and are not within the
calibrated range.
WARNING: DO NOT use the wrench when batteries are not
installed or when batteries do not have sufficient power to
operate the wrench
TO SET TORQUE
1. Press the red PWR button to turn the wrench on.
2. At initial power up, the LCD display will flash all icons
twice and then show the current torque setting. When
stored or not in use, the wrench should be set to less
than 25% of the maximum capacity.
NOTE: The battery level indicator on the LCD display will
indicate the remaining battery life.
3. Press the green UNIT button to toggle through desired
units (ft-lb, in-lb, N-m, kg-cm)
4. Pull the adjusting knob out to unlock the adjusting
mechanism.
5. While holding the adjusting knob unlocked, turn it
clockwise to increase the torque, and counterclockwise
to decrease torque. Keep turning until the desired
TARGET torque reading is displayed on the LCD screen.
6. If during a torque setting adjustment the intended
TARGET value is exceeded on the LCD display, the
torque wrench should be first adjusted back to below
the TARGET value, and then back up to the intended
TARGET value.
7. Lock the setting by releasing and, if necessary, pushing
the adjusting knob in. The knob can be turned slightly
back and forth without changing the torque setting to
assure proper engagement of teeth in the locking
mechanism.
8. Press and hold the red PWR button for 2 seconds to turn
the wrench off. This torque wrench has an automatic
shut off feature and will power down after 10 minutes
of non-use.
9. To turn the LED back light on or off, press and hold the green
button for 2 seconds.
NOTE: The TARGET torque setting and units will be saved
after shut off. If the torque is adjusted while the power is
off, the correct torque target will be displayed at the power
on screen .
TO APPLY TORQUE
1. Attach the proper socket or other attachment to the
drive. Set the reversing lever of the proper direction of
the operation.
NOTE: If special attachments are used, torque setting must
be corrected in accordance with the directions given below
in the extensions section.
2. Place the socket or attachment onto the fastener to be
torqued.
3. Utilizing the ratcheting head, you may ‘spindown’ the
fastener until resistance is felt.
4. Holding the wrench BY THE GRIP ONLY*, apply SLOW
AND STEADY pull until a momentary release impulse or
‘click’ is felt. Release tightening pressure immediately
when the release is felt.
WARNING: At low torque settings the release is gentle and
there usually is no audible ‘click’ signal. Learn how the
release feels BEFORE you torque to avoid accidental
overtightening or damage.
*When using long sockets or extensions, the wrench may be
supported at the head (only at the head) with only negligible
effects on accuracy.
5. The wrench resets automatically and is ready for the next
operation.
Adjusting
Knob
Plastic Handle
Battery Cover
Chrome Plated
Hardened steel housing
LCD Display
Dust Seal
Drive Ratchet Reversing Lever
Fine-Tooth Ratchet Drive Head
Power ON/OFF
Button (Red)
Unit Change
Button (Green)

EXTENSIONS
At times, it is impossible or impractical to use regular
sockets, (a good example being the tightening of threaded
tubing connectors) and a special attachment must be
utilized. Such attachments change the calibration of the
torque wrench, and it is necessary to calculate the correct
settings using the following formulas.
NOTE: Regular socket extensions which extend directly under
the drive head along the axis of rotation of the ratchet do not
affect the calibration of the torque wrench.
E – Effective Length of extension measured along the center
line of the torque wrench
L – Lever length of the wrench – center of grip to center of
drive
CARE AND MAINTENANCE
1. The Husky Digital Style Click Torque Wrench is a
precision instrument and should be handled and stored
with care. It should never be used as a hammer or pry bar.
2. DO NOT apply more torque than the rated capacity of the
torque wrench. DO NOT use it as a nut-breaker!!
3. When the wrench is not in use, keep it set below 25% of
capacity. If you leave the wrench set to over 50% of the
wrench capacity for more than a 1-2 hours, set the
wrench to the lowest setting and leave it for a 3-5
minutes before using it again.
4. The wrench is lubricated for life with a special lubricant.
Do not oil it in any manner. The ratchet head may be
lubricated as needed for smooth operation.
5. This wrench uses two (2) 1.5v (LR44 or equivalent)
batteries.
6. To install and replace batteries as necessary, remove the
battery cover by removing the screw on the battery
cover, located to the left of the LCD. Place the new
batteries with all three facing the same direction, the
positive (flat) side facing the user. Replace the battery
cover by tightening the screw for the battery holder.
7. Remove batteries when wrench is stored for extended
periods.
8. When not in use, store the torque wrench in its
protective case.
9. The rubberized grip is not affected by petroleum
products, but it will be damaged by Acetone and certain
industrial solvents. It may be cleaned with a clean cloth
wetted in mineral spirits or denatured alcohol. Never
immerse the wrench or any portion of it in any liquid.
Clean by wiping with a dry cloth.
10. Periodically, the wrench should be checked for accuracy.
This should be done if the wrench is used frequently or is
subjected to abnormal handling or storage. In assembly
line type of usage, the wrench should be checked every
5,000 torque applications.
11. With the exception of the ratchet mechanism, the
wrench is not user serviceable.
SPECIFICATIONS
Operating Temperature Range 40°F - 110°F (5°C - 42°C)
Model No. H3DTWDIG
Drive 3/8” Ratchet
Calibrated Capacity† 5-80 ft-lbs
60 – 960 in-lbs
6.78 – 108.48 N-m
69.1 – 1106.0 kg-cm
Increments& Display Resolution 0.1 ft-lbs
1.2 in-lbs
0.135 N-m
1.4 kg-cm
Dimensions 18” x 1.57” x 2.16”
Weight 3.2 lbs.
Lever Length* 18.0”
† LCD will display settings above and below the calibrated
range, for adjusting purposes only.
*Center of drive to center of handle
ACCURACY: ±4% on clockwise or right-hand readings greater
or equal to 20% of capacity. Complies with ASME standard
B107.300-2010(B107.14) and International Standard ISO 6789
NOTE: The wrench will not actuate or ‘click’ when used in
the counter-clockwise or left-hand direction
CERTIFICATION
This torque wrench was calibrated prior to shipment from the
factory within tolerancelimits of +/-4% clockwise (right handed)
accuracy of upper 80% range.
LIFETIME WARRANTY
If your Husky Digital Style Click Torque Wrench ever fails, bring it
back and we will replace it Free. This warranty gives you specific
rights, and you may also have other rights, which vary from
state to state. For details visit your nearby store or call
1-888-HD-HUSKY
Made in China/Hecho en China
Distributed by / Distribuido por Home Depot, USA, Inc.
2455 Paces Ferry Rd., N.W., Atlanta, GA 30339
www.HuskyTools.com
T(W) = T(E)( )
L
L + E
T(E) = T(W)( )
L + E
L
LE (2) 1.5v (LR44 or equivalent)
ATG-3047
Instructions for attaching the lid to the case:
Upon opening the package the lid of the case is
unattached and nested behind the case.
To attach, aline the hinge pins on the lid with the
holes on the top of the case.
Insert the first hinge pin into the first hole and then
apply downward pressure to snap the second pin
into the second hole.
Lid is now attached and can be latched for safe and
secure storage or transport of the torque wrench.