Index revision : F - November 2017
29
7012
6.7. 1-PV block and Manifold block
6.7.1. Disassembly
• Remove the PPH 308.
• Remove the screw securing the 1-PV block to the brace.
• Disconnect the hoses between the 1-PV block and the manifold.
• Remove the brace (
see § 2 page 15
).
• Unscrew the brace from the manifold.
• Remove the brace from the 1-PV block.
• If necessary, remove the restrictor from the Manifold.
6.7.2. Reassembly
• Install or replace the restrictor according to the paint viscosity.
• Check the different components (o-rings, solvent pipette, fittings) of the Manifold block ,
replace them if necessary.
Check that there are no cracks on the 1PV block and especially around fitting 31.
WARNING : If the plastic fittings are replaced, it is necessary to place a PTFE ribbon on the
threading of the new plastic fittings, (approximately 2 to 3 turns). Attention no to
make overflow the ribbon on the surface of the fitting.
• Check that all o-rings are in place on the Manifold.
• Insert the brace in the 1-PV block and screw it on the manifold.
• Secure the brace firmly to the support by tightening the screw fully.
• Connect the hoses linking the 1-PV block to the manifold.
• Secure the 1-PV block to the brace by tightening the nylon screw M5 x 10.
6.8. High voltage unit UHT 155 EEx em
see RT Nr 6218
Monthly check:
• Check that the high-voltage cascade is correctly inserted into the high-voltage well,
check that it has not retreated, and make sure that the UHT locking screw is tightened cor-
rectly.
• Check the HV well of the manifold for dielectric grease.
•
If the UHT 155 is removed
: using a lint-free cloth, remove all dielectric grease from the high-
voltage well, the high voltage unit, the spacer (Rep. 12) and the seal (Rep. 13) without lea-
ving any residue. If a cleaning agent is used, dry with compressed air.
•
When reassembling
: Fill the 2/3 high voltage well with new dielectric grease, reassemble
the several components in reverse order of disassembly, taking care not to contaminate
greases with foreign bodies or products.
6.9. Microvalves
see RT Nr 6021
