User Manual

model no. 054-3213-8 | contact us 1-888-670-6682
16 17
TM
OPERATING INSTRUCTIONS
The largest tightening torque is achieved after approx. 6 to 10 seconds of impacting/
tighteningaction.Thetorquebuild-updependsonthefollowingfactors:
•Hardnessofthebolts/nuts.
•Typeofwasher(diskwasher,springwasher,seal).
•Hardnessofthematerialtobejoined.
•Lubricatingeffectatthesurfacesofthejunction.
Thisleadstothefollowingapplicationcases:
•Hardcase:Thejoiningofmetaltometalwithadiskwasher.Themaximumtorqueis
reached after a relatively short impacting/tightening action.
•Mediumcase:Thejoiningofmetaltometalwherespringringwasher,diskspring
washer, stud bolts or bolts/nuts with conical seats are used.
•Softcase:Thejoiningofe.g.metaltowoodorinsulationmaterial.
For middle or soft joining cases, the maximum tightening torque is less than for hard
cases. Therefore, a longer impacting/tightening action is necessary to arrive at the
maximum tightening torque.
FASTENING WITH SCREWS
This procedure will enable you to fasten materials together with your tool without
stripping, splitting or separating the material. (Fig. G)
First, clamp the pieces together and drill the first hole 2/3 the diameter of the screw. If
the material is soft, drill only 2/3 the proper length. If it is hard, drill the entire length.
Second, unclamp the pieces and drill the second hole the same diameter as the screw
shank in the first or top piece of wood.
Third, if flat head screw is used, countersink the hole to make the screw flush with
the surface. Then, simply apply even pressure while driving the screw. The screw
shank clearance hole in the first piece allows the screw head to pull the pieces tightly
together.
OPERATING INSTRUCTIONS
will cause the battery pack to overheat. If the allowable battery temperature range of
32–158
°
F (0–70
°
C) is exceeded, the battery pack will automatically stop operating and
will not restart until it has cooled to a safe level.
LOW-VOLTAGE CUT-OUT
The battery pack used on this tool is fitted with a low voltage cut out feature within
the circuitry. The low-voltage cut-out feature operates when the voltage drops below
a pre-set value. This feature automatically stops the tool from operating. When this
condition occurs you will need to either insert another battery pack into the tool or
recharge the existing battery pack.
OPERATING TIPS
You will extend the life of your bits and do neater work if you always put the bit in
contact with the work before starting the tool. During the operation, hold the tool
firmly and exert light, steady pressure. Too much pressure at low speed will stall the
tool. Too little pressure will keep the bit from cutting and cause excess friction by
sliding over the surface. This can be damaging to both tool and bit.
DRIVING SCREWS WITH VARIABLE SPEED
The technique is to start slowly, increasing the speed as the screw runs down. Set the
screw snugly by slowing to a stop. Prior to driving screws, pilot and clearance holes
should be drilled. Always hold the machine straight on the screw to be tightened.
The best method to determine the right impacting/tightening duration is by means of
a trial. For small screws, the right impacting/tightening duration can be reached in less
than 0.5 sec. Therefore, work with low RPM and switch the machine off immediately
when the screw is tight and the impacting sound is heard.
For screwing larger, longer wood screws into hard material, pre-drilling is the best
method.
TIGHTENING TORQUE
The tightening torque depends on the duration of the impacting/tightening action.
NOTE:
•Theimpactdriverwillnotrestartuntilthebatterypackhas
cooled. .
•DONOTforcecoolthepackinanyway.Donotplacein
refrigerator or freezer. To reduce the temperature of the cells
remove the battery pack from the tool and place the battery pack
in a free air environment, out of direct sunlight or any other heat
source.
NOTE: Attempting to restart the tool without either recharging
the battery or installing another battery (with charge) will lead to
tool restarting and then stopping again, after only a few seconds of
operation.
FASTENING
WITH SCREWS
1. Drill 2/3 diameter
and 2/3 length for
soft materials, full
length for hard.
2. Drill same diameter
as screw shank.
3. Countersink same
diameter as screw
head.
2. Screw.
Apply a slight even
pressure when driving
screws.