Bosch UniversalImpact 7500 Manual Original página 21

– When you reach the required drilling depth, pull the drill
bit out of the drill hole first and then switch off the impact
drill.
– The dust protection ring (15) can wear, especially when
working with large drill-bit diameters. Replace the dust
protection ring when worn/damaged.
Changing the Tool
Keyless Chuck (UniversalImpact 700, UniversalImpact
700 + Drill Assistant) (see figure H)
Press the spindle lock button (2) only when the ma-
u
chine is at a standstill.
The drill spindle is locked by pressing the spindle lock
button (2). This makes it possible to change the application
tool in the drill chuck quickly, conveniently and easily.
Open the keyless chuck (1) by turning it in the direction of
rotation ➊ until the tool can be inserted. Insert the tool.
Firmly tighten the sleeve of the keyless chuck (1) by turning
it by hand in the rotational direction ➋ until it stops clicking.
This will automatically lock the drill chuck.
The lock will disengage again if you turn the sleeve in the op-
posite direction to remove the tool with the spindle locking
button pressed.
Keyed Chuck (UniversalImpact 650) (see figure J)
Press the spindle lock button (2) only when the ma-
u
chine is at a standstill.
The drill spindle is locked by pressing the spindle lock
button (2). This makes it possible to change the application
tool in the drill chuck quickly, conveniently and easily.
Wear protective gloves when changing tools. The drill
u
chuck may heat up significantly when it is used for long
periods.
Open the keyed chuck (28) by turning it until the tool can be
inserted.
Insert the tool.
Insert the drill chuck key (29) into the corresponding holes
of the keyed chuck (28) and clamp the tool evenly.
Screwdriving tools
You should always use a universal bit holder (24) when using
screwdriver bits (25). Only use screwdriver bits that fit the
screw head.
For screwdriving, make sure the "drilling/impact drilling" se-
lector switch (3) is always set to the "drilling" symbol.
Changing the drill chuck
Pull the plug out of the socket before carrying out any
u
work on the power tool.
Removing the Drill Chuck (see figure J)
Remove the auxiliary handle (9).
Insert a steel pin with a diameter of 4 mm and a length of ap-
prox. 50 mm into the hole on the spindle collar to lock the
drill spindle in place. Clamp a hex key (27) in the keyless
chuck (1), leading with the short shaft.
Bosch Power Tools
Place the power tool on a firm surface, e.g. a work bench.
Hold the power tool in place and loosen the keyless chuck
(1) by turning the hex key (27) in the rotational direction ➊.
A tightly seated keyless chuck is loosened with a light blow
on the long shaft of the hex key (27). Remove the hex key
from the keyless chuck and completely unscrew the keyless
chuck from the power tool.
Fitting the drill chuck (see figure K)
To assemble the keyless chuck (1), perform the same steps
in reverse order.
After successfully fitting the drill chuck, remove the
u
steel pin from the hole again.
The drill chuck must be tightened using a tight-
ening torque of approx. 30–35 Nm.
Operation
Starting Operation
Pay attention to the mains voltage. The voltage of the
u
power source must match the voltage specified on the
rating plate of the power tool. Power tools marked
with 230 V can also be operated with 220 V.
Products that are only sold in AUS and NZ: Use a resid-
u
ual current device (RCD) with a nominal residual current
of 30 mA or less.
Set the rotational direction (see figure L)
The rotational direction switch (4) is used to change the ro-
tational direction of the power tool. However, this is not pos-
sible while the on/off switch (6) is being pressed.
Right rotation: To drive in screws and tighten nuts, press
the rotational direction switch (4) through to the left stop.
Left Rotation: To loosen and unscrew screws and nuts,
press the rotational direction switch (4) through to the right
stop.
Setting the Operating Mode
Drilling and screwdriving
Set the selector switch (3) to the "drilling"
symbol.
Impact drilling
Set the selector switch (3) to the "impact
drilling" symbol.
The selector switch (3) clicks into place and can also be ac-
tuated when the motor is running.
Switching on/off
To start the power tool, press and hold the on/off switch
(6).
Press the lock-on button (5) to lock the on/off switch (6) in
this position.
To switch off the power tool, release the on/off switch (6);
or, if the switch is locked with the lock-on button (5), briefly
press the on/off switch (6) and then release it.
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1 609 92A 57D | (10.12.2021)