Replacing The Timing Belt; Replacing The Timing Belt For Adjustment Of The Transport Width - JUKI KE-3010 Maintenance Manual

5-5. Replacing the Timing Belt

5-5-1. Replacing the Timing Belt for Adjustment of the Transport Width

1) Loosen the setscrew
2) Loosen the tension pulley
3) Remove the bearing fixing screw
∗ Note) Three washers are used for the fixing screw. When removing the bearing fixing
screw, pay special attention so that these washers are not fallen down.
4) Detach the bearing
5) Loosen the stopper collar setscrew
6) Detach the bearing and stopper collar from another side in the same manner as described
above.
7) Pull out the screw shaft
8) Pass the screw shaft through a new timing belt and insert it into the reference rail side.
9) Insert the stopper collar
which has been detached in step 3).
∗ Note) Pass three washers through the bearing fixing screw. (See the Figure.)
10) With the screw shaft kept pushed against the reference rail side, push the stopper collar
against the bearing
11) Adjust the timing belt pulley to apply a tension.
∗ Note) At this time, do not apply a strong tension. A tension, at which two screw shafts
rotate at the same time, is accepted.
12) Put the rail on the driven side close to the reference side to make the nut
in contact with the timing pulley
If the left and right screw shafts are not in contact with the timing pulley at the same time,
loosen the tension pulley once and rotate only the screw shaft that is not in contact with the
timing pulley to make the adjustment. After the adjustment has been completed, adjust the
tension. (Do not stretch the belt strongly.)
13) Put the rail on the driven side as close to the reference side as possible. Loosen the screw
and adjust the adjustment plate position.
14) Widen the rail on the driven side to its maximum position and check that the screw shaft
rotates smoothly.
∗ Note) If the screw shaft does not rotate
smoothly, loosen the screw shaft fixing
screw
side kept widened as much as possible
and secure it again at this position.
15) Adjust the belt tension with an acoustic belt
tension meter.
(Weight=4.0, Width=9.0, Span=98)
Maintenance Guide
to detach the handle shaft coupling
to detach the timing belt
from the rail stand on the driven side.
.
to detach the stopper collar
toward the driven side to detach the timing belt
, which has been detached in step 5), and secure the bearing
to eliminate any play, and then secure them.
.
with the rail on the driven
12
from the screw shaft.
.
5-5
Rev. 2.0
from the screw shaft.
.
of the screw shaft
Figure 5-5-1
,
11