Eastwood 31483 User manual

MICROMETER
TORQUE WRENCH
INSTRUCTIONS
Part #s 31483, 31484, 31485

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The MICROMETER TORQUE WRENCHES rely on a proven straightforward design to provide many
years of service. It features rugged all metal construction for maximum durability. Easy to use
with a range that is ideal for most average automotive applications.
CONTENTS
(1) Torque Wrench
(1) Heavy Duty Blow Molded Storage Case
SPECIFICATIONS
Torque Range Torque Increments Accuracy Drive
#31483
1/2” Micrometer
Torque Wrench
10-150 ft-lb
1.4-20.7 m-kgs 1 ft-lb 6% 1/2”
#31484
3/8” Micrometer
Torque Wrench
5-80 ft-lb
0.7-11.2 m-kgs 0.5 ft-lb 6% 3/8”
#31485
1/4” Micrometer
Torque Wrench
20-200 in-lb
23-230 cm-kgs 1 in-lb 6% 1/4”
DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION used with the safety alert symbol, indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
NOTICE is used to address practices not related to personal injury.
SAFETY INFORMATION
The following explanations are displayed in this manual, on the labeling,
and on all other information provided with this product:

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READ INSTRUCTIONS
Thoroughly read and understand these product instructions before using
this Torque Wrench.
• Keep these product instructions for future reference.
INJURY HAZARDS!
• This tool creates high amounts of leverage while in operation.
Wear ANSI approved eye protection and heavy duty work gloves at
all times while operating.
• Over-torqueing can cause part and or fastener failure.
• Read and understand all vehicle manufacturer’s torquing instructions for
the vehicle or object on which the fastener is being torqued. Failure to do so
could cause damage or personal injury.
INJURY HAZARDS!
• Do not use for loosening and installing fasteners. Use only for tightening a
fastener to the recommended torque.
• Do not extend handle by use of a pipe or other means. Doing so may cause
damage or personal injury.
• Inspect before every use, if tool appears damaged do not use.
• All sockets, extensions or accessory tools used in conjunction with this
torque wrench must be rated to handle the intended torque setting.
SAFETY INFORMATION

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SETTING THE TORQUE VALUE
• Unlock by turning the black
Knurled Knob at the end of the
Torque Wrench Handle approx.
1/4 turn (FIG. 1) in a Counter-
Clockwise direction.
• To select the desired torque, turn
the Rotating Handle Sleeve until
the “0” aligns with a major gradu-
ation on the stationary segment of
the Handle (FIG 2), then continue
turning the Handle Sleeve until the
desired minor graduation on it is
aligned with the stationary handle
segment center line (FIG 3).
• Lock the torque setting by turning
the black Knurled Knob at the end
of the Torque Wrench Handle
(FIG. 1) in a Clockwise direction
until it stops.
• The Torque Wrench is now ready
for use.
FIG. 1
FIG. 2
FIG. 3
Do not excessively loosen the
black Knurled Knob or the
Torque Wrench factory
calibration will be destroyed.
Do not rotate the Rotating
Handle Sleeve beyond or
below the maximum range
or the Torque Wrench factory
calibration will be destroyed.
Shown set for 42 ft-lbs
Shown set for 40 ft-lbs
Rotating Handle Sleeve
✓
Lock Knob
Rotate
✓
Rotate

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OPERATION
• Set torque wrench to the desired torque value (see previous section: Setting the Torque Value).
• Install appropriate socket to the square drive and place the socket securely over the fastener
• Center hand on the handle grip and apply a steady force in the tightening direction until a
noticeable “click” is felt and heard. Immediately stop pulling once the “click” is achieved.
The fastener is now torqued to the desired setting.
• After each use, unlock the black knurled knob and rotate handle counterclockwise until the
torque wrench is at its lowest setting then re-lock the rotating handle in this position.
This will release any internal tension and allow the torque wrench to maintain calibration
as long as possible.
• Always bring fasteners to near final tightness with conventional tools before tightening with
Torque Wrench to final torque. Never use the Torque Wrench as a general ratchet to tighten
or loosen fasteners or permanent damage can occur.

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SETTING THE TORQUE WRENCH
WITH TORQUE ADAPTERS
If a Torque Adapter is being used, the effective lever length will change with the addition of the
adapter. Use the equations below to calculate the torque setting adjustments necessary.
NOTE: Socket Drive Extensions must be placed axially in line with the drive mechanism and
handle of the torque wrench as shown in FIG 4.
E= Adapter length
L= Torque wrench length
TW = Torque set on wrench
TE = Actual torque applied with extension in place
TW = (TE x L) / (L+E)
TE = (TW x (L+E))/ L
✓
✓
L
E
✓
✓
FIG. 4

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MAINTENANCE
• Before each use, inspect the condition of the tool for damage or corrosion that may
affect operation.
• After each use, be sure to adjust the Torque Wrench to its lowest torque setting. This releases
internal tension and allows the torque wrench to maintain calibration as long as possible.
• Keep the Torque Wrench stored in a clean, dry location, in the supplied case.
Periodically coat with a rust preventative coating such as a light machine oil.
Dropping the Torque Wrench can have an adverse effect on accuracy.
Do Not drop the Torque Wrench or allow it to fall.

© Copyright 2016 Easthill Group, Inc. 8/16 Instruction item #31482Q Rev 1
If you have any questions about the use of this product, please contact
The Eastwood Technical Assistance Service Department: 800.544.5118 >> email: [e-mail]
PDF version of this manual is available online >> eastwood.com/31482manual
The Eastwood Company 263 Shoemaker Road, Pottstown, PA 19464, USA
US and Canada: 800.345.1178 Outside US: 610.718.8335
Fax: [phone] eastwood.com