HUSKY 1000788224 Micrometer Adjustable Torque Wrenches Instruction Manual

HUSKY 1000788224 Micrometer Adjustable Torque Wrenches

Product Information

Specifications

• Product Model Numbers : 625319, 564394, 564464, 1000788224, 1000788225, 1000788226
• Torque Wrench Type : Micrometer Adjustable
• Torque Range : Variable (specified by model number)
• Tolerance : +/- 3% clockwise (right-handed) accuracy of upper 80% of range
• Warranty : Lifetime warranty

Product Usage Instructions

How to Apply Torque

1. This Micrometer Adjustable Torque Wrench is designed to provide an audible signal and/or impulse feel when the desired torque is reached. Do not exceed this point.
2. Ensure that the socket is securely attached to the torque wrench square drive and positioned on the fastener to prevent tilting.
3. Hold the center of the hand grip and apply a slow, steadily increasing force perpendicular (90 degrees) to the torque wrench body and perpendicular (90 degrees) to the center line of the square drive, socket, and fastener.
4. Turn the fastener with a smooth and even force applied to the handle of the torque wrench. Slow down as turning resistance increases. The fastener must be in motion when the torque measurement is made for accuracy.

Using Extensions

• When using an extension that changes the effective lever length of the torque wrench, the applied torque will change. Compute adjustments as follows:

Where:

• TW = Torque set on wrench
• TE = Torque applied by the extension to the fastener
• L = Original lever length of the torque wrench
• E = Additional lever length provided by the extension

The formulas for adjustment are:

TW = (TE X L) / (L + E)

TE = (TW X (L + E)) / L

Note : Socket extension bars that are axially in line with the square drive do not cause error and do not require adjustment.

Adjusting Your Micrometer Torque Wrench

Caution : Do not turn the grip with the locking collar in the lock position to prevent damage to the adjusting mechanism.

1. To unlock, hold the handle grip in one hand and pull down the locking collar.
2. Rotate the grip until 0 on the thimble scale reaches the the primary number of the desired torque setting.

FAQ

• Q: What is the accuracy of this torque wrench?
  • A : This torque wrench is calibrated prior to shipment from the  factory within tolerance limits of +/- 3% clockwise (right-handed)accuracy of upper 80% of range.
• Q: What is the warranty for this torque wrench?
  • A : This torque wrench comes with a lifetime warranty. If it fails, you can bring it back for a free replacement. For more details, visit your nearby store or call 1-888-HD-HUSKY.
• Q: Can I use universal joints or universal sockets with this torque wrench?
  • A: No, it is not recommended to use universal joints or universal sockets with this torque wrench due to the complexity of determining the associated error. If you need angular access, use a flex-head torque wrench.

PRODUCT OVERVIEW

HOW TO APPLY TORQUE

1. This Micrometer Adjustable Torque Wrench is designed so that when force is properly applied to the handgrip, an audible signal and/or- impulse feel will indicate that the desired torque has been attained. DO NOT pull beyond this point.
   • CAUTION: The audible signal/or impulse feel is an indicator that the proper torque has been attained. Over-torqueing beyond these signals could cause fastener failure. Additionally, when the wrench is set at the low end of the torque range, the degree of signal and impulse will be less than when set at the high end of the range. Therefore, care must betaken at low end of scale to hear signals or feel impulses.
2. To properly apply torque, attach the socket securely on torque wrench square drive and position the socket on the fastener so that tilting will not occur. Grasp the center of the hand grip and apply a slow steadily increasing force perpendicular (90 degrees) to the torque wrench body and perpendicular (90 degrees) to the center line of the square drive, socket, and fastener.
3.  Turn the fastener down with a smooth and even force applied to the handle of the torque wrench. As turning resistance increases pull more slowly. To assure accuracy, the fastener must be in motion when the torque measurement is made.

WARNING : Any change from the above procedure will result in a change of torque being applied. This includes standard torque wrenches, flex head torque wrenches, universal joints, and universal sockets. DO NOT USE universal joints or universal sockets due to the complexity of determining the associated error. If you need angular access, use a flex head torque wrench.

EXTENSIONS

• When it is necessary to use an extension that changes the effective lever length of the torque wrench, torque being applied will change. Compute adjustments as follows:

TW = Torque set on wrench
TE = Torque applied by the extension to the fastener

TW = (TE X L) / (L + E)
TE = (TW X (L + E)) / L

• NOTICE : Socket extension bars that are axially in line with the square drive do not cause error and need no adjustment

LIFETIME WARRANTY

• If your Husky 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 call1-888-HD-HUSKY

ADJUSTING YOUR MICROMETER TORQUE WRENCH

CAUTION -Do did not turn GRIP with the LOCKING COLLAR in the lock position. Damage to the adjusting mechanism may occur.

1. To UNLOCK, hold the handle GRIP in one hand and pull down the LOCKING COLLAR.
2. Rotate GRIP until “0” on the THIMBLE SCALE reaches the primary number of the desired torque value on the SHAFT MAIN SCALE.
3. Continue rotating the GRIP if the desired torque value is between the primary numbers on the MAIN SCALE. Add the secondary number on the THIMBLE SCALE to the primary number on the MAIN SCALE to achieve the desired torque value.
4. To lock the wrench, release the LOCKING COLLAR.

EXAMPLES OF TORQUE SETTINGS

• NOTE: Many models have both American Standard and Metric Scales on the same wrench.
• The Main Scale American Standard graduations are on the front of the SHAFT and the Thimble Scale graduations are closest to the beveled edge. The Main Scale Metric graduations are on the reverse side of the shaft and the Thimble Scale Metric graduations arebelow the American Standard graduations.

References

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