Service manual

2 FOLDING SECTION

5-10

DUPLO DF-755 86V-M12D0-0

2 FOLDING SECTION

2.1 Checking and Adjusting Press Force

If the press force between left and right is extremely different, horizontal folding

misalignment may occur or paper may get wrinkled. If extreme folding misalignment along

the sides of the paper occur, check the balance between the left and right pressure.

1) Hang a tension gauge of 5 kg on the bearing holder of the press lever and pull the gauge

little by little.

[1]

Press lever for the ﬁrst press roll

[2]

Press lever for the second press roll

[3]

Tension gauge

2) When the indicator shows the speciﬁed value, check that the press roll moves away from

the center press roll.

[4]

First press roll

[5]

Second press roll

[6]

Center press roll

Speciﬁed value:

First press roll: 4 kg ± 200 g

Second press roll: 2.5 kg ± 125 g

3) If the press roll does not move away from the center press roll even at the speciﬁed value,

or on the contrary the press roll moves away from the center press roll before reaching the

speciﬁed value, turn the angle around and adjust the spring tension.

[7]

Angle

[1]

[2]

[3]

[1]

[2]

[4]

[5]

[6]

[7]