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RKF 130
Troubleshooting and repair
Version 1.1
Page 121 of 128
6.
TROUBLESHOOTING AND REPAIR
6.1
CHECK LIST
•
Safety instructions
The guidelines in chapters 1.4 or 4.1 should be followed in case of all
servicing and inspection works. Especially, the main switch should be
switched off (position "0") and should be secured with a lock. In addition it
is recommended that the plug of the power supply cable should be
removed from the socket or the mains fuse should be switched off and they
should be made inaccessible for third persons.
6.1.1
Roasting cylinder
Error:
Cause:
Error removal:
Leakage on the
roasting cylinder cover
Cover seal defective,
clearance between cover and
roasting cylinder too large
Exchange cover seal
Readjust the cover bolts
Leakage on the
roasting piston
Piston seal defective
Change piston seal
Piston does not move
downwards
No hydraulic pressure:
-
No hydraulic oil
-
Proportional valve defective
-
Hydraulic pressure too low
-
Electronic defect
Check oil status, refill if required
Renew proportional valve
Test hydraulic pressure
Renew electronics
Piston does not move
upwards
No hydraulic pressure:
-
No hydraulic oil
-
Proportional valve defective
-
Hydraulic pressure too low
-
Electronic defect
Check oil status, refill if required
Renew proportional valve
Test hydraulic pressure
Renew electronics
Piston does not move
backwards to the top
Hydraulic oil status too low
Refill hydraulic oil