JMA VIENNA Manual De Instrucciones página 16

9) Fit the new capacitor ( c ) and connect its two cables.
10) Put the cover onto the "terminal box", securing it with the 4 screws (14).
11) Fit the "motor guard", securing it in place with the 7 screws (9).
12) Fit the "left side guard", holding it in place with the 6 screws (4).
13) Fit the "right hand guard", securing it in place with the 6 screws (6).
14) Fit the brush, and fix it in place with its screw.
15) remove the blocking rod from the cutter shaft.
4.10 REPLACING THE CLAMP RAISING CAM
See figure 22
if as a result of excessive wear it becomes necessary to replace the "clamp raising
cam", proceed as follows:
1) switch off the machine and unplug the power cable.
2) unscrew the clamp knob (b), and remove the clamp.
3) with the help of a small punch, hit the pin (16) until it is expelled from underneath
the slide.
4) remove the knob (g) together with its shaft, pulling on it in the axial direction.
5) remove the old cam. to do this, you can use a small rod to push the old cam from the
bottom of the slide, so that it comes out from the top of the slide.
6) insert the new cam into its space, at the same time as you insert the shaft of the
knob (g) into its hole.
7) Make the hole in the shaft of the knob (g) coincide with the hole in the new cam. in
this position, insert the pin (16).
8) replace the clamp and its corresponding knob (b).
4.11 ACCESS TO THE INSIDE OF THE SLIDE
See figure 23
For any maintenance operation requiring access to the inside of the slide, proceed as
follows:
1) switch off the machine and unplug the power cable.
2) remove the swarf tray.
3) turn the two knobs (g) 90º, in order to be able to remove the "slide cover" without
any hindrance later.
4) release the slide by pressing the button (M), and move it towards the cutter-tracer,
until the slide will go no further forward.
5) unscrew the "slide control lever", and remove it.
6) undo the 4 screws (15) securing the "slide cover", and remove the cover.
4.12 TIGHTENING THE SLIDE SPRING
See figure 24
this operation is carried out in the following way:
1) switch off the machine and unplug the power cable.
2) access the inside of the slide, as explained in the section above.
3) with the help of two no. 4 allen keys, loosen the tightening device's (18) two sets-
crews (17): loosen one of the two setscrews. then, with one of the allen keys loosen
the second setscrew, using the second allen key to hold the tightening device (18) there-
by preventing it from turning unexpectedly when you loosen the second setscrew.
4) with the allen key inserted in the setscrew (17), turn the tightening device (18) until
you achieve the force required. in this position, lock the tightening device (18) by means
of the two setscrews (17).
4.13 ACCESS TO THE BOTTOM AREA
See figure 25
For any maintenance operation requiring access to the bottom area of the machine,
proceed as follows:
1) switch off the machine and unplug the power cable.
2) remove the swarf tray.
3) turn the machine, in order to be able to gain access to the "lower protection plate".
4) unscrew the machine's 4 feet and remove them.
5) undo the 5 screws (10) securing the "lower protection plate", and remove them.
4.14 REPLACING THE MICROSWITCHES
See figure 26
this operation is carried out as follows:
1) switch off the machine and unplug the power cable.
2) release the slide by pressing the button (M), and move it towards the cutter-tracer,
until the slide itself will go forward no further.
3) remove the swarf tray.
4) turn the machine, to gain access to the "lower protection plate".
5) unscrew the machine's 4 feet, and remove them.
6) undo the 5 screws (10) holding the "lower protection plate" in place, and remove
the plate.
7) unscrew the two nuts (19) and remove the two microswitches.
8) disconnect the old microswitch's cables, noting down the position of each of them
beforehand.
9) connect the cables to the new microswitch.
10) Put the two microswitches back, securing them with the two nuts (19).
11) Fit the "lower protection plate", fixing it in place with the 5 screws (10).
12) screw on the machine's 4 feet.
13) turn the machine so that it is in position ready for use.
14) raising and lowering the slide, check that the microswitches work properly.
15) Put the swarf tray back into the machine.
4.15 REPLACING THE DISPLAY
See figure 27
this operation can be carried out in the following way:
1) switch off the machine and unplug the power cable.
2) insert the blocking rod into the hole in the cutter shaft.
3) undo the screw securing the brush, and remove the brush.
4) undo the 6 screws (6) securing the "right side guard" in place, and remove the
guard.
5) undo the 6 screws (4) holding the "left hand guard" in place, and move it slightly to
the left to gain access to two of the seven screws securing the "motor guard".
6) undo the 7 screws (9) securing the "motor guard", and remove it.
7) undo the 2 screws (20) securing the "electronic guard", and turn it backwards to gain
access to the lower part of it.
8) remove the old display's connector, noting down beforehand the position of the con-
nector.
9) unstick the old display from the "electronic guard", and remove it.
10) stick the new display onto the "electronic guard", so that it is centred in its gro-
ove.
11) Plug the display's connector into the electronic card. check that it has been connec-
ted in the right position.
12) Fit the "electronic guard", securing it with the 2 screws (20).
13) Fit the "motor guard", securing it with the 7 screws (9).
14) Fit the "left side guard", securing it with the 6 screws (4).
15) Fit the "right side guard", securing it with the 6 screws (6).
16) Fit the brush, and secure it in place with its screw.
17) remove the blocking rod from the cutter shaft.
4.16 REPLACING THE ELECTRONIC CARD
See figure 28
this operation is carried out in the following way:
1) switch off the machine and unplug the power cable.
2) insert the blocking rod into the hole in the cutter shaft.
3) unscrew the screw holding the brush in place, and remove the brush.
4) undo the 6 screws (6) securing the "right side guard", and remove the guard.
5) undo the 6 screws (4) securing the "left side guard", and move the guard slightly to
the left to gain access to two of the seven screws holding the "motor guard" in place.
6) undo the 7 screws (9) securing the "motor guard", and remove the guard.
7) undo the 2 screws (20) holding the "electronic guard" in place, and turn it backwards
to gain access to the bottom part of it.
8) remove the display's connector, noting down beforehand the position of the con-
nector.
9) undo the 2 screws (21) securing the "electronic card" to the "electronic guard", and
remove the card.
10) disconnect the old "electronic card's" cables, noting down beforehand the position
of each of them.
11) connect the cables to the new "electronic card". check that they have been con-
nected in the right position.
12) Fit the "electronic card", securing it with the 2 screws (21).
13) Plug the display's connector into the electronic card. check that it has been connec-
ted in the right position.
14) Fit the "electronic guard", securing it with the 2 screws (20).
15) Fit the "motor guard", fixing it in place with the 7 screws (9).
16) Fit the "left side guard", securing it with the 6 screws (4).
17) Fit the "right side guard", securing it with the 6 screws (6).
18) Fit the brush, and secure it in place with its screw.
19) remove the blocking rod from the cutter shaft.
5.- SAFETY
For your safety, we recommend that you follow these guidelines:
• Do not try and start or operate the machine until all the safety aspects, installation
instructions, operators' guide and maintenance procedures have been complied with
and understood.
• Always disconnect the mains electricity supply, before carrying out any cleaning or
maintenance work.
• Always keep the machine and the area around it clean.
• Work with dry hands.
• Always use protective goggles, although the machine is fitted with guards.
• Make sure that the machine has an earth connection