User manual

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considerably greater than when working with ajaw chuck.
Important
Remove mains plug.
1. Remove three fastening screws from the three-jaw chuck
and
remove chuck.
2. Thoroughly clean the fit for the collet chuck mount 2
(Fig. 24) and the fit in the main spindle 1.
3.
Attach the collet chuck mount 2using four fastening screws 3.
Important
Always use the correct collet chuck to suit the work piece.
Chucks with an oversized diameter aredestroyed.
4. Insert the collet chuck 6and loosely screw in the union nut 5.
Important
Never tighten the union nut when thereisnowork piece
inserted.
5. Insert the appropriate work piece in the collet chuck and
tighten the union nut 5using the tool pins 4.
Fasteningthe drill chuck (No. 24020)
1. Remove the rotating centrefromthe sleeve. Thoroughly
clean the grease and dirt from the shank taper and chuck
bore.
2. Insert the journal in the sleeve and firmly push onto the drill
chuck.
Note:
Releasing the drill chuck is performed in the same way as the
rotating centre.
Fixed steady (No. 24010)
The steady is particularly suitable for hollowing out long work
pieces with diameters up to 40 mm.
1. Release the fastening screw 4(Fig. 25) and position retain-
ing plate 3crosswise.
2. Place the steady on the bed guide and set to the required
position.
3. Swivel the retaining plate 3parallel to the steady base and
tighten fastening screw 4.
4. Release all clamp screws 1and drive the individual retain-
ing jaws 2onto the work piece
Important
The jaws 2must only touch the work piece and must not jam.
Otherwise thereisarisk of the work piece surface becoming
scratched and the motor becoming overloaded.
If the work piece is not round and smooth at the support point,
it must first be turned round.
Lubricate the jaws and work piece regularly when turning.
5. Check that the work piece is positioned in the steady free of
play
and re-tighten clamp screws 1.
Repair and Maintenance
Cleaning
Caution!
Always disconnect the mains plug for all adjustment and main-
tenance
work! Risk of serious injuries or damage due to inad-
vertent starting up of the device, or hazarddue to electric
shock!
1. After use, thoroughly clean all chips from the machine using
abrush or handbrush. Do not use compressed air for clean-
ing.
2. Regularly lubricate or oil all moving parts, spindles and
guides!
The outside of the housing can be cleaned with asoft, dry or
damp
cloth. It is possible to use mild soap or other suitable
cleaning agent here. Solvents or cleaning agents containing
alcohol (e.g. petrol, cleaning alcohol etc.) should be avoided,
since these can attack the plastic housing casings as well as
wash offthe lubricants.
Please observe:
Changing the power supply cordmay only be carried out by our
Proxxon-Service-Department or aqualified specialist!
Adjusting the play of the guides (Fig. 27)
Note:
Even if the guides areregularly lubricated or oiled, it is unavoid-
able that the guides will exhibit play after some time due to
wear.
The proceduredescribed hereusing the example of the upper
carriage is the same for all guides, thereforeitapplies analo-
gously to the other guides on your lathe. For that reason they
will not be treated separately here. Adjust the guides according
to the motto: As "tightly" as necessary,aseasy running as pos-
sible!
Please consider: If guides areset too closely,this causes high-
er operating forces as well as increased wear!
1. Release and slightly unscrew the counter nuts 1ofthe
adjusting screws 2for the upper carriage 3using an open-
end spanner 5.
2. Evenly turninthe adjusting screws 2with an Allen key 4
until the play is eliminated.
3. Retighten the counter nuts 1. In the process, hold the
adjusting screws 2inposition with the fixed spanner 5so
that they do not misadjust again.
4. Turn over the machine and slightly unscrew the set screw 2
(Fig. 28).
5. Then check if the support can still be moved easily and if
it runs completely without play.
Adjusting the play of the handwheels (Fig. 29):
Just as for the guides, handwheel wear during operation can-
not be avoided which ensures that the backlash increases
slowly but consistently.Tominimise this again, please proceed
as follows: