TYPE 5320
I
NSTALLATION,
O
PERATION
AND
M
AINTENANCE MANUAL
I O M . U K . D V C . 5 3 2 0 . 3 0 0 6 1 5 - R E V . B
PAGE 11
5.2
Wiring
Please refer to the enclosed wiring diagram or contact us for further details.
If the enclosed diagram is not followed/neglected – the guarantee will no longer be valid.
5.3 Operation
As to the fact that the limit switch are fully controlled/operated by the actuator shaft no manual
operation is necessary.
6. Maintenance
6.1
Maintenance
Caution:
Turn off all power services before attempting to perform service on the limit switch box.
Before removing or disassembling the limit switch box ensure that the valve or other
actuated device is isolated and not under pressure.
When/if replacing any part use only original DVC spare parts.
All though no real maintenance is necessary on the limit switch box, regular maintenance
checks should, under normal conditions, be carried out with intervals of maximum six
months. But if service conditions are severe more frequent inspections may be advisable.
Ensure limit switch box / actuator alignment
Ensure wiring insulation is intact, connected and terminated properly
Ensure all screws are present and tight
Ensure cleanliness of internal electrical parts / devices
Ensure conduits connections are installed properly and dry
Check enclosure o-ring seals and verify that the o-ring is not pinched between
flange
Visual inspect during open/close cycle
Inspect identification labels for wear and replace if necessary
