6.4.4. Procedure C2: Replacement of HVU
• Unscrew the HV contact.
• Using a multigrip pliers, extract the HVU from the
barrel.
• Replace the HVU, apply a light coat of dielectric grease
(P/N H1GSYN037) to the seal of the new HVU.
• Position the HVU in the gun and push it to the stop.
• Place a plug with a layer of dielectric grease on the HV
contact seal.
Screw it to the contact + 1/4 turn. Make sure to leave
a slight protrusion of the screw head in relation to the
surface of the barrel.
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DRT7132
D - 2022 /09
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