Removing The Tool Or Drill Chuck With The Integrated Drill Drift On The B28H (B, Vario); Mounting The Drill Chuck B24H And B28H (B, Vario) - Optimum B 24 H Operating Manual

Operation
4.9.3 Removing the tool or drill chuck with the integrated drill drift on the B28H (B,
Vario)
CAUTION!
Hold the tool
With the below described procedure the
taper mandrel is being loosened from the
drill spindle. The tool and/or the drill chuck
will fall down.
CAUTION!
Do not try to expel the tool when it is in the
intermediate position. This might cause
damages of the integrated drill drift or of
the feed handle.
Lower the spindle until the two circum-
scribed lines on the quill are visible.
Push the locking pin
inside. Be sure that the pin is fully engaged.
inside the quill.
Raise the spindle upward while holding the
chuck.
The chuck arbor will be pushed out of the
spindle.
Pull out the locking pin
quill.
4.9.4

Mounting the drill chuck B24H and B28H (B, Vario)

The keyless drill chuck is
secured through a form-fit
union (driver) against twist-
ing in the drill spindle.
A friction-locking
holds and centers the key-
less drill chuck with the
taper mandrel in the drill
spindle.
Check and if necessary, clean the conical seat in the drill spindle and at the taper mandrel of
the tool or the keyless drill chuck.
21 / 07 / 2014
or the drill chuck.
2
inside the quill fully
1
fully out of the
1
drill spindle
union
taper mandrel
Operation Bench drill and upright drill B24H ; B28H (B) (Vario) ; Version 2.1.7
OPTIMUM
M A S C H I N E N - G E R M A N Y
2
Img.4-16: Disassembly B28HB, B28H (Vario)
driver
Img.4-17: taper mandrel
1
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