Panasonic EY7546 operating instructions VIII. Accessories, IX. Appendix, Specifications

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 suitable size of bit.

Panasonic original Optional Quick change chuck (EY9HX110E).

Chuck Size: 6.35 mm (1/4”) hex

IX. APPENDIX

MAXIMUM RECOMMENDED CAPACITIES

Model		EY7546	EY7547	EY7550	EY7551
Screw driving	Wood screw		3.5 mm -	9.5 mm
	Self-drilling screw		3.5 mm -	6 mm
Bolt fastening			Standard bolt:M6-M16
			High tensile bolt : M6 - M12

X. SPECIFICATIONS

MAIN UNIT

Model		EY7546	EY7547	EY7550		EY7551
Motor voltage		14.4	V		18 V
	soft mode		0 - 1000	min-1	(rpm)
No load speed	medium mode		0 - 1400 min-1		(rpm)
	hard mode	0 - 2500 min-1(rpm)	0 - 2300 min-1(rpm)	0 - 2500 min-1(rpm)		0 - 2300 min-1(rpm)
Maximum torque		150 N·m (1330 in.Ibs)	200 N·m (1770 in.Ibs)	155 N·m (1370 in.Ibs)		205 N·m (1815 in.Ibs)
	soft mode		0 - 2000	min-1	(rpm)
Impact per minute	medium mode		0 - 2800 min-1		(rpm)
	hard mode	0 - 3000 min-1(rpm)	0 - 3500 min-1(rpm)	0 - 3300 min-1(rpm)		0 - 3500 min-1(rpm)
Overall length		143 mm (5-5/8˝)	155 mm (6-1/8˝)	143 mm (5-5/8˝)		155 mm (6-1/8˝)
Weight (with battery pack EY9L44)		1.5 kg (3.3Ibs)	1.55 kg (3.4Ibs)		—	—
Weight (with battery pack EY9L50)		—	—	1.6 kg (3.5Ibs)		1.65 kg (3.6Ibs)

BATTERY PACK

Model	EY9L41	EY9L42	EY9L44	EY9L50
Storage battery			Li-ion
Battery voltage	14.4 V DC		14.4 V DC	18 V DC
	(3.6 V x 4 cells)		(3.6 V x 8 cells)	(3.6 V x 10 cells)