45
DRT7105
G - 2022/11
Member of EXEL group
6.4.4. Procedure C1: Replacement of O-rings and seals
Replacing the seals on the spray head side
•
Step 1
: Seal cartridge: Extract the cartridge
from the barrel using the multipurpose
spanner. The cartridge should be replaced
every time it is disassembled.
If the o-ring at the front of the cartridge is to
be replaced, removed it with a screwdriver,
insert the new o-ring, ensuring it is positioned
correctly.
When reassembling, ensure the cartridge is
inserted in the correct orientation (white seal
facing outwards). Push the cartridge until it
clips into the barrel. Coat the white seal and
the anti-extrusion ring with a fine layer of
vaseline.
•
Step 2
: Seal: Replace the seal every three
months. Remove the seal using a 2.5mm
screwdriver, taking care to avoid damaging the
barrel.
•
Step 3
: HV contact: Unscrew the HV contact
using a 4mm socket wrench. The fibre washer
should always be replaced whenever the
device is disassembled. Replace the HV
contact if necessary, then screw back into the
barrel.
HV contact