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Tightening torque will vary, even with the
same bolting material (e.g. steel), accord-
ing to the surface finish.
Torque is greatly reduced when the bolt
and nut start turning together.
5) Socket play
Torque is lowered as the six-sided configu-
ration of the socket of the wrong size is
used to tighten a bolt.
6) Switch (Variable speed control trigger)
Torque is lowered if the unit is used with
the switch not fully depressed.
7) Effect of Connecting Adaptor
The tightening torque will be lowered
through the use of a universal joint or a
connecting adaptor.
VIII
. ACCESSORIES
Use only bits suitable for size of chuck.
IX
. APPENDIX
MAXIMUM RECOMMENDED CAPACITIES
Model
EY7540
Screw driving
Wood screw
3.5 - 9.5 mm (1/8" - 3/8")
Self-drilling screw
3.5 - 6 mm (1/8" - 1/4")
Bolt fastening
Standard bolt : M6 - M16
High tensile bolt
: M6 - M12
X
. SPECIFICATIONS
MAIN UNIT
Model EY7540
Motor 14.4 V DC
No load speed
soft mode 0 - 1000 /min (rpm)
medium mode 0 - 1400 /min (rpm)
hard mode 0 - 2300 /min (rpm)
Maximum torque 150 N·m (1530 kgf-cm, 173 in-lbs.)
Impact per minute
soft mode 0 - 2000 /min (ipm)
medium mode 0 - 2800 /min (ipm)
hard mode 0 - 3000 /min (ipm)
Overall length 158 mm (6-1/4")
Weight (with battery pack : EY9L40) 1.45 kg (3.1 lbs)
BATTERY PACK
Model EY9L40
Storage battery Li-ion Battery
Battery voltage 14.4 V DC (3.6 V x 4 cells)
Capacity 3 Ah
EY7540(UL).indb 13 2006/09/07 16:58:37