SPX OTC 7380 User manual

Sheet No.
Issue Date: Rev. B December 23, 2010
© 2010 SPX
Form No. 558557
Operating Instructions
for: 7380
655 EisEnhowEr DrivE
owatonna, Mn 55060-0995 Usa
PhonE: [phone]
tEch. sErv.: [phone]
Fax: [phone]
orDEr Entry: [phone]
Fax: [phone]
intErnational salEs: [phone]
Fax: [phone]
Dial Torque Wrench
Basic Operating Instructions
1. Turn the bezel until the black pointer is resting on zero.
2. Attach a socket or attachment to the square drive.
3. Place the socket or attachment over the fastener to be torqued. The torque
wrench handle must be perpendicular (90 degrees) to the centerline of the
drive, socket and fastener.
4. Load the torque wrench at a slow and steady rate until the black pointer
indicates the desired torque.
5. Stop applying force. The pointer should return to zero.
CAUTION : To prevent personal injury, wear eye
protection that meets ANSI Z87.1 and OSHA standards.
Reset Knob
Square
Drive Bezel
Black Pointer
Orange
Memory
Pointer
CAUTION: To prevent equipment damage,
•
Never use the torque wrench beyond its rated capacity. Maximum torque capacity is reached when the black
pointer rotates 180 degrees from zero. Exceeding the maximum torque capacity damages the wrench and voids
warranty. If the pointer does not return to zero after a torque application, it is an indication that the wrench
was overloaded.
•
Load the torque wrench to near maximum torque capacity before starting, or when changing directions, to
remove residual energy that may be present from a previous torque application.
•
Threads on bolts, nuts, and other mating components must be clean, smooth, and lubricated to obtain accurate
and consistent torque readings.
•
Follow the manufacturer's recommended procedures for tightening fasteners. Never torque a fastener that is
already tightened. First loosen the fastener; then torque it to the desired value.
•
Never use the torque wrench as a nut breaker.
1 of 2

Operating Instructions Form No. 558557, Sheet 1 of 2, Back
Multiply By To Obtain
FT-LBS 12 IN-LBS
CM-KG 0.8679 IN-LBS
IN-LBS 0.0833 FT-LBS
IN-LBS 1.1522 CM-KG
Conversion of Torque Units
Use the chart to convert units of torque. Note: Units may
be represented in various forms, such as Kgf.cm, which
is equivalent to CM-KG.
Certication
This torque wrench is certied to have been calibrated
prior to shipment for accuracy of ± 4% in both directions
on readings from 20% to 100% of capacity. On readings
below 20% of capactiy, the accuracy is ± one scale
increment.
Using Attachments
Attachments used with the torque wrench alter the effective
lever length (L) of the wrench, which in turn changes the
amount of torque applied. Use the following formulas to
calculate torque adjustments.
Maintenance
•
Clean the torque wrench by wiping it with a soft cloth. Do not immerse the torque wrench in liquid.
•
Store the torque wrench in its protective case.
•
Periodic accuracy checks and calibrations are required. An out-of-calibration torque wrench can cause part or tool
breakage. A calibration should be performed at least once a year, or every 5,000 torque application cycles, whichever
comes rst. Recalibration is also recommended after any abnormal handling.
•
Should the torque wrench require repair service, contact your nearest OTC-authorized torque wrench repair center,
and provide them with date of purchase information. If the wrench is determined to be in warranty, it will be repaired
or replaced at no charge and returned freight prepaid. If the unit is determined to be out of warranty, it will be repaired
for a nominal service charge plus return freight.
The Memory Feature
1. Turn the bezel until the orange memory pointer comes to a stop against the black pointer. Note: Reverse bezel direction
for counterclockwise torques.
•
Clockwise torque with 3/8 inch and smaller drive wrenches: Turn the bezel counterclockwise.
•
Clockwise torque with 1/2 inch and larger drive wrenches: Turn the bezel clockwise.
2. Continue turning the bezel until the orange memory pointer is at zero.
3. Place the socket or attachment over the fastener to be torqued. Ensure the alignment is perpendicular (90 degrees)
to the handle and centerline of the drive, socket and fastener.
4. Load the torque wrench at a slow and steady rate until the black pointer indicates the desired torque. The black pointer
should push the orange memory pointer toward the desired torque. If the black pointer moves away from the orange
memory pointer, the bezel was rotated in the wrong direction.
5. Stop applying force. The black pointer should return to zero.
6. Reset the memory pointer by turning the reset knob, located in the center of the bezel, until the memory pointer stops
against the black pointer.
TW = Torque reading on wrench
TE = Torque applied to fastener by extension
Note:
• Donotuseuniversaljointsanduniversalsocketsdue
to the complexity of determining the error.
• Socketextensionbarsthatarein-linewiththesquare
drivedonotcauseerrorandneednoadjustments.

Sheet No.
Issue Date: Rev. B December 23, 2010
© 2010 SPX
Operating Instructions Form No. 558557
2 of 2
One Year Limited Warranty
Effective 2-17-97
This product, and all parts making up this product, with the exceptions noted below or
otherwise stated under a separate warranty, are warranted against defects in materials
and workmanship for a period of one year from date of purchase.
This warranty is expressly limited to the original retail purchaser of the product or
part for use in the ordinary course of the buyer’s business.
This warranty does not cover any product or part that has been abused, worn out, contaminated,
rusted, heated, ground, or otherwise altered, damaged due to side loading, used for a purpose
other than for which it was intended, or used in a manner inconsistent with any instructions
regarding its use.
Chains, batteries, electric motors, knives, and cutter blades, which are sold with OTC
products, are not covered under this warranty. Electric motors are separately warranted by
manufacturers under conditions stated in their warranties.
THIS WARRANTY IS EXCLUSIVE OF THIS PRODUCT, AND OTC MAKES NO OTHER
WARRANTY OFANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, WITH RESPECTTO
THEPRODUCTSMANUFACTURED OR SOLD BYIT, WHETHERASTOMERCHANTABILITY,
FITNESS FORAPARTICULAR PURPOSE, ORANY OTHER MATTER. No agent, employee,
or representative of OTC has any authority to bind OTC to any afrmation, representation,
or warranty concerning OTC products or parts, except as stated herein.
To qualify for warranty consideration, return the OTC product, freight prepaid, to an OTC
authorized hydraulic service center. If any product or part, manufactured or distributed by
OTC, is found to be defective by OTC, in its sole judgment, OTC will, at its option, either
repair or replace such defective product or part, and return it via best ground transportation,
freight prepaid.
THIS SHALL BE THE EXCLUSIVE REMEDY AVAILABLE FOR ANY DEFECTS IN THE
PRODUCTS OR PARTS MANUFACTURED OR SOLD BY OTC, OR FOR DAMAGES
RESULTING FROM ANY OTHER CAUSE WHATSOEVER, INCLUDING, WITHOUT
LIMITATION, OTC’S NEGLIGENCE. OTC SHALL NOT, IN ANY EVENT, BE LIABLE TOANY
BUYER FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES OF ANY KIND, WHETHER
FOR DEFECTIVE OR NON-CONFORMING GOODS, NEGLIGENCE, ON THE BASIS OF
STRICT LIABILITY, OR FOR ANY OTHER REASON.
The purpose of this exclusive remedy shall be to provide the buyer with repair or replacement
of products or parts, manufactured or distributed by OTC, found to be defective in materials
or workmanship, or negligently manufactured. This exclusive remedy shall not be deemed
to have failed its essential purpose so long as OTC is willing and able to repair or replace
said defective products or parts in the prescribed manner.
Repair Service
Should your torque wrench require repair service, contact your nearest OTC
authorized torque wrench repair center, and provide them with the date of
purchase information. If the unit is determined to be in warranty, it will be
repaired or replaced at no charge and returned freight prepaid.
If the unit is determined to be out of warranty, it will be repaired for a nominal
service charge plus return freight.