ZURN Z130-SE, Operation Manual

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40/52 | Operation manual Z130-SE | 05/2016 41/52 | Operation manual Z130-SE | 05/2016
10.9. Maintaining conveyor belts
There are conveyor belt tensioners at the following points:
1. Upper inlet belt conveyor
2. Main belt
3. Header belt
Tensioning conveyor belt
All steps must be undertaken identically on
both sides.
1. Undo upper nut (Fig. 10.11).
2. Tension the conveyor belt using the lower
nut. Attention: Conveyor belts only reach
the final tension after 2 min., for this rea-
son do not tension excessively.
3. Tighten upper nut
2 2
1
3 3
1
Fig. 10.7
Fig. 10.9
Fig. 10.8
Fig. 10.10
Fig. 10.11
10.10. Changing variator belt
Removing old belt / preparing vari-
ator for new belt
1. Release chain tension at the variator ad-
justment and remove chain (Fig. 10.12).
2. Disconnect the two connectors (Fig.
10.13) and remove the cable ties.
3. Remove support bridge (Fig. 10.14).
4. Turn adjusting unit clockwise until the
belt is in full contact with the pulley hub
(Fig. 10.15). If it is not possible to turn the
adjusting unit by hand, a wrench can be
used.
Attention:
Use wrench with care,
the plastic sleeve could be irreparably
damaged.
5. Clean bolts holes in the lower variator pul-
ley using compressed air.
6. Screw release bolts into the holes (Fig.
10.16) (Release bolts are included in the
tool kit).
7. Tighten bolts evenly until an even resist-
ance can be felt. Attention: Immediately
stop turning on feeling resistance so that
the thread is not damaged.
8. Remove belt over lower variator pulley
(Fig. 10.17).
Fitting the new belt
9. Fit belt to upper variator pulley and
thread into place over lower variator pulley
(Fig. 10.17).
10. Remove release bolts.
11. Turn adjusting unit counter clockwise
until the belt is slightly tensioned.
12. Undertake steps 1-3 in the reverse order.
Fig. 10.12
Fig. 10.13
Fig. 10.14
Fig. 10.15
Fig. 10.16
Fig. 10.17