Tetra Pak HOYER COMET N, Manual

Page: 79 / 151

8-3
Tetra Pak
Hoyer
CN 03 H A 01
PROBLEM
Malfunctioning in the rise and
descent of the stations
Chain not synchronized with the
station
Irregular and noisy operation
Irregular and/or clicking
movement of the suction-cup and
ejection holder trays
CAUSE
- Malfunctioning of the
pneumatic system
- Malfunctioning of the PLC
- Malfunctioning of the rise and
descent slides
- Loose chain.
- Chain tension.
- Poor condition of:
- Lever ball bearings
- bushes
- cams
- cam contacting wheel
SOLUTION
- Verify operation of pneumatic
valves and cylinders.
- Verify on LED signal flow
from valve coils and PLC.
- Verify on LED end-of-run
signal exchange with PLC.
- Check the free movement of
slides on guide rails, verify the
bushes and replace them if
necessary.
- Verify chain tension and
modify if necessary.
- Rotate the crown gear on
circumferential slot hole with
reference to dispenser/ejector
cam movement.
- Verify the correct position of
the lamellas during the halt phase
of the indexing system .
- Verify chain tension and
modify if necessary.
- Verify condition and replace if
necessary a worn out/damaged
component.