Griots Garage 11901 User manual

D UAL S CALE
T ORQUE W RENCH
W ARRANTY
All tools are warranted to do the work for which they are designed and
intended. If any tools are shown to the reasonable satisfaction of the company
to be defective by reason of faulty materials or workmanship while being
used for their purposes, they will be repaired or replaced free of charge.
Warranty is limited to twelve months. This warranty is void if the assembly
has been tampered with by the user or any third party.
This warranty is limited to the cost of repairing or replacing with a satisfactory
substitute at the company's option any faulty item manufactured by the com-
pany (and is given in addition to the purchaser's statutory or common law
rights). Repaired items are warranted for three months only.
Have fun in your garage!™
G RIOT ' S G ARAGE
3500-A 20th Street E. • Tacoma, WA 98424
800-345-5789 • FAX [phone]
©2000 G RIOT ' S G ARAGE I NC .
C ALIBRATION I NFORMATION
A VAILABLE M ODELS
#11901
3
⁄ 8 " Torque Wrench 8-60 N.m 5-45 ft. lb.
#11902
1
⁄ 2 " Torque Wrench 40-200 N.m 30-150 ft. lb.
#11903
1
⁄ 2 " Torque Wrench 60-330 N.m 45-250 ft. lb.
C ALIBRATED A CCURACY
This torque wrench has been calibrated within its range to an accuracy of
+_ 3% of reading, using test equipment traceable to national and international
measurement standards. If used below the range stated above, accuracy will
be within +_ 6%. G
RIOT ' S G ARAGE torque wrenches are designed, manufac-
tured and tested to exceed the requirements of BS EN 26789Z:1994 and
ISO 6789:1992.
G RIOT ' S T ORQUE W RENCH T ESTING S ERVICE
Your torque wrench is a precision instrument. After extensive use you may
utilize our testing service so your readings will be accurate. A ± 4 to 5% accu-
racy means nothing if you don't know how accurate your wrench is to begin
with! Send us your torque wrench (write: "Torque Test Lab" on outside of
box) and we'll give you a certificate that states your torque reading vs. the
actual reading. Of course if you've purchased a torque wrench from us this
service is free, you'll only pay for the shipping. Same day turn around service
is available.
C ALIBRATION C ERTIFICATE
"Professional" torque wrenches are supplied with a traceable calibration
certificate. This gives traceability to National Standards and G
RIOT ' S G ARAGE .
Locking knob
Handle sleeve
Setting window &
micrometer scale
Body tube
Ratchet reversing lever
Pivot pin

1. Hold handle sleeve and rotate
locking knob counterclockwise.
(
1
⁄ 3 turn). This unlocks the
wrench handle.
2. Rotate handle sleeve until
required torque setting is on the
cursor in setting window ensur-
ing that setting is approached
from a lower value. The upper
scale nearest the ratchet head is
in N.m and the lower scale in
ft. lb. (1 ft. lb. = 0.73756 N.m. )
4. Setting for ratchet direction.
Simply slide the ratcheted
reversing lever back and forth
depending upon the desired
ratcheting direction.
S ETTING I NSTRUCTIONS
3. Rotate locking knob clockwise
approximately
1
⁄ 3 of a turn until
it comes up against its stop.
This locks the wrench handle.
5. Fit required socket size to
square drive of the ratchet.
O PERATING I NSTRUCTIONS
•Place socket over fastener and pull wrench until ratchet mechanism clicks
and tool is felt to give slightly. Stop pulling immediately.
•For the most accurate results pull torque wrench slowly and squarely from
the center of the handle with the tool perpendicular to the axis of the bolt.
•Do not use the torque wrench in a fast or jerking motion.
•The tool mechanism automatically resets when hand pressure is relaxed,
ready for the next tightening cycle.
A CCIDENT P REVENTION
•A torque wrench is a precision tool for the accurate tightening of nuts and
bolts. It should never be used as a lever to undo frozen nuts.
•When tightening or loosening a nut it is possible that something might
break or slip. Always stand firmly with one foot well in front of the other
and pull the torque wrench towards you.
•Make sure that the socket is the correct size to fit the nut and is in good
condition.
•Use an extension driver between the wrench and the socket if there is
any danger of scraping your knuckles due to a sudden release.
•Accidents can occur using the simplest tools so,
"BE SAFETY CONSCIOUS"!
F OR B EST R ESULTS
•Do treat your torque wrench like a precision instrument.
•Do operate the tool several times to re-distribute lubrication on the torque
mechanism when it has not been used for some days.
•Do refer to makers handbook or recognized repair manual for correct
torque settings.
•Do tighten cylinder head studs in the recommended pattern.
•Do set the torque wrench at a lower figure (
3
⁄ 4 of required figure) tighten
all nuts then re-set to final figure and tighten again (see illustration).
W ARNING
•Never immerse the tool in gasoline or any other solvent to clean it: plastics
and adhesives employed in the construction of the adjustment mechanism
react to some chemical agents and the tool will be severely damaged and
the warranty void.
•Never use extension tubes over the handle to make it easier to pull: this
practice not only damages the tool, but an incorrect torque will be applied.
•The use of "crow foot" type extensions on the square drive also results in
a torque other than the set torque being applied.
•Never use your torque wrench to undo "frozen" nuts/bolts.
•To ensure correct calibration when storing the wrench, always reset the
wrench to the mark as pictured. Never drive the adjustment past the clearly
defined upper and lower limits of the scale.
•Don't quickly jerk the tool when tightening, a smooth continuous pull
gives more accurate results.
•Don't use grease or molybdenum compounds on screw threads before
torque tightening.
•Don't tilt the torque wrench out of square with the axis of the bolt
when tightening.
Pull slowly
After use, return
torque wrench
to this mark.