Maintenance Of The Dense Phase Pump; Maintenance Schedule; Daily Maintenance; Pinch Valve Diagnostic - Gema OptiSpray AP01.1 Operating Instructions Manual

Maintenance of the dense phase pump

28 • Maintenance / Repairs
Rev. 00 05/17

Maintenance schedule

The following components or modules are subject to a maintenance plan:
– Pinch valves
– Filter elements
The service life of the filter elements and pinch valves depends on the
service duration, the powder quality and the quality of the air supply.

Daily maintenance

Clean the Application pump with a dry cloth and check the connection
points of the powder hoses. Replace the powder hoses, if necessary.
Rinse the Application pump by using the rinsing program. Therewith, the
filter elements are cleaned and possible, unintended powder deposits in
the Application pump and in the powder hoses are avoided.

Pinch valve diagnostic

The pinch valve diagnostic is to be carried out, in order to maintain the
coating quality or after the error message H89 is displayed.
The prerequisites for the diagnostic:
– Exhaust at suction and conveyance side must be present and in
operation
– Powder hopper must be empty
– Cleaning program completed
The pinch valve diagnostic is to start after the cleaning program
has been completed!
– The detailed procedure is explicitly described in the CG12-
CP/CG11-P Gun control unit operating instructions.
If the error message H87/H187 (suction pinch valve) or H88/H188
(conveying pinch valve) is displayed after the procedure has been
completed, the corresponding pinch valve hoses must be replaced – see
below.

Wearing parts

The wearing parts to be replaced during the OptiSpray AP01 Application
pump maintenance are available separately (see spare parts list).
OptiSpray AP01.1