Starting And Stopping - Milwaukee 5426-21 Manual Del Operador

SDS Drive System
NOTE: Only use accessories with SDS Max shanks.
1. Unplug the tool.
2. Lightly grease the bit or chisel shank.
3. Insert the bit or chisel into the nose of the tool.
4. Rotate bit slowly until it aligns with the locking
mechanism.
5. Push bit into tool until it locks.
6. Check that the bit is locked properly; it should
be possible to pull the bit back and forth slightly
(about 1/4").
7. To remove bits and chisels, pull bit holder toward
the rear of tool and remove bit.
NOTE: Use caution when handling hot bits and
chisels.
OPERATION
To reduce the risk of injury, always
WARNING
wear proper eye protection marked
to comply with ANSI Z87.1.
When working in dusty situations, wear appro-
priate respiratory protection or use an OSHA
compliant dust extraction solution.
To reduce the risk of injury, always unplug
tool before attaching or removing accessories
or making adjustments. Use only specifically
recommended accessories. Others may be
hazardous.
To reduce the risk of injury, keep hands and cord
away from the bit and all moving parts.
To reduce the risk of injury, always use a side
handle when using this tool. Always brace or
hold securely.
Electronic Feedback Control Circuit
These hammers have an Electronic Feedback Con-
trol Circuit (EFCC) which helps improve the opera-
tion and life of the tool. It allows the tool to maintain
constant speed and torque between no-load and
load conditions.
Soft Start
The Soft-Start feature reduces the amount of torque
reaction at startup to the tool and the user. This
feature gradually increases the motor speed up from
zero to the top no-load speed.
To reduce the risk of injury, when
WARNING
using chisels or other hammering-
only accessories, the action selector must be set
to the "hammering only" position.
Selecting Mode
1. For hammering with rotation,
turn the selector lever to dis-
play the hammer and twist drill
symbols. (Not available on
Cat. No. 5446-21)
2. For hammering only, turn
the selector lever to dis-
play the hammer symbol.
(See "Selecting Hammering
Speed")
3. To freely rotate the bit to the
desired angle for chiseling
only, turn the selector lever to
display the 0 symbol.
Selecting Hammering Speed
1. To increase the Hammering speed (2840 blows
per minute), move the hammer speed control
selector to the large hammer. Use the high ham-
mer speed for harder materials, such as concrete.
2. To decrease the Hammering speed (2200 blows
per minute), move the hammer speed control se-
lector to the small hammer. Use the low hammer
speed for softer materials, such as brick.

Starting and Stopping

1. Insert the accessory.
2. Select the mode and hammering speed.
3. Position the tool on the workpiece.
4. Grasp both handles firmly (trigger handle and
either the spade handle or straight handle).
5. To start the tool, grasp the handles firmly and pull
the trigger. Always hold the tool securely using two
handles and maintain control.
6. Use only enough pressure to hold the tool in place,
engage the hammering mechanism, and prevent
the tip of the chisel from wandering. This tool has
been designed to achieve top performance with
only moderate pressure. Let the tool do the work.
NOTE: To engage the hammering mechanism,
maintain pressure on the bit/chisel. When pressure
is released, hammering stops.
7. To stop the tool, release the trigger. Make sure
the tool comes to a complete stop before laying
the tool down.
When chiseling or chipping, hold the tool at an angle
to the work area. For best performance, work from
a corner or close the edge of the work and break off
a small area at a time.
5
Chiseling