Milwaukee Rotary Hammer manual Functional Description, Cat. No

Symbology

	Double Insulated
	Volts Alternating Current
	Amps
	No Load Revolutions per
	Minute (RPM)
BPM	Blows per Minute (BPM)
	Underwriters Laboratories, Inc.
	Mexican Approvals Marking

Specifications

						Max	Max
					Blows/	Percussion	Percussion		Chisel Shank
Cat.	Volts		No Load			Drill Bit	Core Bit
No.	AC	Amps	RPM *		Minute	Diameter	Diameter †	Chisels	Type
5337-20	120	14		--	975-1950*	--	--	See	3/4" Hex
5337-21	120	14		--	975-1950*	--	--		3/4" Hex
								"Chiseling
5339-20	120	14		--	975-1950*	--	--	and	SDS-Max
5339-21	120	14		--	975-1950*	--	--	Chipping"	SDS-Max
5340-20	120	15	125	- 250 975-1950*		2" Spline	6" †		3/4" Hex with
									21/32" Round
5340-21	120	15	125	- 250 975-1950*		2" Spline	6" †		3/4" Hex with
									21/32" Round
5342-20	120	15	125	- 250 975-1950* 2" SDS-Max			6" †		SDS-Max
5342-21	120	15	125	- 250 975-1950* 2" SDS-Max			6" †		SDS-Max

*EFCC - The Electronic Feedback Control Circuit maintains constant speed under varying load conditions.

†Use MILWAUKEE core bits Cat. No. 48-20-5125 through 48-20-5165. Do not use LHS (Large Hole System) Components with rotary hammers 5340-20 and 5342-20. The bits could fail, breaking apart at the threaded stud and causing injury and property damage.

FUNCTIONAL DESCRIPTION

12 Cat. No. 5342-20 4

11 5

1.Vibration isolation system

2.On/Off trigger switch

3.Soft grip handle

4.Service indicator light

5.Speed control dial

6.Lock-on button (Cat. Nos. 5337-20, 5339-20 only)

11

9

7.Spade side handle (Cat. Nos. 5337-20, 5339-20 only)

8.Spade side handle adjusting knob (Cat. Nos. 5337-20, 5339-20 only)

9.Bit lock (Cat. Nos. 5337-20, 5340-20 only)

10.Straight side handle (must be used when hammering with rotation)

11.Straight side handle mounting positions (3 locations)

12.Action selector (Cat. No. 5339-20, 5342-20 only)

1

10

6

1

11

2

3

Cat. No. 5337-20

7

1

8

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