5
If the plate pack has been marked on the
outside, check this (see step 7 on page 35 in
Opening on page 33). If the plates are
correctly assembled (A/B/A/B etc.), the edges
form a “honeycomb” pattern, see picture.
6
Press the plate pack together. Position the
four tightening bolts according to the
figure.Tighten the four bolts (1), (2), (3), (4)
until the plate pack measure is 1.10×A
making sure the frame plate and pressure
plate are parallel when closing.
7
Tighten the four bolts (1), (2), (3), (4) evenly
until dimension A has been reached.
When a pneumatic tightening device is used,
see table below for maximum torque.
Measure dimension A during tightening.
Bolt size
Bolt with bearing
box
Bolt with washer
Nm kpm Nm kpm
M30 900 90
M39 1300 130 2000 200
M48 2100 210 3300 330
For manual tightening, the tightening torque
has to be estimated.
If dimension A cannot be reached:
• Check the number of plates and the
dimension A.
• Check that all the nuts and bearing boxes
are running freely. If not, clean and
lubricate, or replace.
200000547-4-EN-GB 39
Maintenance 6 EN
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