Jäger Chopper 1500-F D S5A, Manual

Page: 11 / 36

Technical description
Item no. 11303003, Revision 02 11 ( 36 )
5.3 Cooling
The high frequency spindle is cooled by an electric fan.
Note: Extension of the service life through heat dissipation.
Heat is produced during operation of the HF spindle. The temperature of the
HF spindle should not 55° C as this shortens the service life of the
bearing.
u
Always switch on the electric fan as soon as the machine enters opera-
tion.
u Check the temperature of the HF spindle on the housing.
Before the HF spindle is started each day:
Ü
Check the electric fan for damage.
Ü Check the air intake of the electric fan.
Ü Ensure that the fan wheel rotates properly.
5.4 Sealing air
For guidelines on air quality,
see "Air purity classes (ISO
8573-1)
[
}
21] " section.
The sealing air prevents foreign bodies such as chips and liquids (e.g. emul-
sions) from entering the HF spindle.
Ü Check that air escapes at the front between the housing and the rotating
parts of the HF spindle.
5.5 Pneumatic tool change
For guidelines on air quality,
see "Air purity classes (ISO
8573-1)
[
}
21] " section.
The tool change or tool taper change is performed pneumatically.
During this, a mechanism is operated inside the HF spindle which clamps, re-
leases, or ejects the tool taper or collet.
5.6 Cylinder vent
The cylinder takes in air when clamping the taper/tool. This air must be clean
and dry.
Only if necessary:
Ü Remove the sound absorber.
Ü
Fit the relevant hose fitting in place of the sound absorber.
Ü Fit the relevant hose to the hose fitting.
Ü Select the length of the hose so that its free end protrudes out of the hose
fitting far enough that no dirt or moisture can be taken into the hose.