Plastic Film And Other Scrap Removal; Machine Cleaning; Control Of Cooling Liquid; Rubber And Teflon Replacement - Minipack-Torre Modular 50 Digit Installations, Gebrauchs Und Wartungsanweisungen

Chapter 7. Ordinary maintenance

7.3. Plastic film and other scrap removal

When the bobbin of the automatic coiler (23) is full, remove the film by unscrewing the knob (32) and taking away the
disk (33) (figure 7.3 page 62).

7.4. Machine cleaning

Use a cloth moistened with water for the cleaning of the machine (figure 7.4 page 62).

7.5. Control of cooling liquid

Check the level of the cooling fluid once every 4 months. To do so, remove the guard (34) and unscrew the plug (35)
(figure 7.5 page 62). Check that the rod is wetted by the liquid at about 2 cm height, otherwise add a mixture of water and
antifreeze liquid (10%).

7.6. Rubber and teflon replacement

When the Teflon-strikers (36) are worn out, replace them with spare parts, paying attention that the application is linear and even (figure
7.6. page 62). Before applying the Teflon self-adhesive strip clean the rubber part (37) with a detergent. If also the rubber (37) is
damaged, replace it as follows:
1. remove the old rubber
2. clean its housing
3. apply some drops of glue in the housing
4. insert the new rubber in a linear way
5. clean the rubber with a detergent
6. apply the self-adhesive Teflon-strip.

7.7. Adjustment of the cams

The adjustment of the cams must only be carried out by authorised personnel!
It is necessary to disassemble the panel (38) at the back of the machine in order to get access to the cams (figure 7.7.A page 62). There
are 2 cams which control (figure 7.7.B page 62):
1. The lowering of the sealing frame and thus the pressure of same on the sealing blade.
2. The maximum opening of the sealing frame and the start of the conveyor belt.
The adjustment is made by loosening the screw (39) and rotating the cam in the right position.
Attention: for the adjustment of the cams, shift them gradually!
7.8. Replacement of sealding blade
To replace the sealing blade (27) follow this procedure (figure 7.8. page 62):
 Disconnect power to the machine
 Unscrew the three screws (40), (41), (42)
 Remove the old sealing blade
 Clean the housing and if necessary replace the insulating teflon (43) of the central clamp
 Insert the new sealing blade starting from the central clamp and tighten the screw (41)
 Trim the new sealing blade according to the holes of the pistons (44) and (45)
 Complete the insertion if the sealing blade in the whole housing
 Push the rear piston completely onwards (45) towards the sealing blade to make it enter the hole of the piston itself and then
tighten screw (42)
 Push the front piston (44) completely onwards towards the sealing blade to make it enter the hole of the piston itself and then
tighten screw (40)
 Trim the teflon projecting from the central clamp
 Make sure that the sealing blade is well positioned and in tension
ATTENTION!
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly
qualified persons in order to avoid a hazard.

7.9. Wiring diagram

B1 Frame descent limit switch
B2 Frame rise limit switch
B3 Safety device cutting out limit switch
B4 Safety limit switch
B5 Rewinder limit switch
Cooling fans
E1/2
ER1 Sealing blade heater
F1 Sealing blade fuse
F2 Motor fuse 10.3X38
Auxiliary transformer fuse
F3
F4 Ventilator / pump motor fuse
FU1 Board fuse 5X20
K1 Electronic control board
Belt motor
M1
M2 Frame drive motor
M3 Pump motor
(figure 7.9. page 63/64).
10.3X38
10.3X38
5X20
M4 Rewinder motor
Q1 Main switch
Q2 Rewinder switch
QM1 Sealing blade contactor
QM2 Frame rise contactor
Frame descent contactor
QM3
QM4 Belt contactor
QM5 Accessories contactor
S0 Emergency pushbutton
Start button
S1
S2 Manual selector
SK1 Control board
T1 Cutting transformer
Auxiliary transformer
T2
X1 Rewinder power supply socket
X2 Rewinder power supply plug
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EN