Index revision : I - November 2018
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•
Step 9
: Install the washer (Ref.: 1412147) and the sealing ring (Ref.: J4BRND032).
•
Step 10
: Deposit and distribute a half drip of loctite "oléoétanche 542" between the seal-
ing ring (ref.: J4BRND032) and the axis.
•
Step 11
: Assemble the piston unit, pay attention that the lip of the seal is not turned over,
for that, to exert a rotational movement while entering the body.
•
Step 12
: Install the second sealing ring (ref.: J4BRND032), put in place the flat washer (ref.:
X4KDZU003), screw and block the nut (ref.: X4KEHU003).
WARNING : Before installing the needle, it is necessary to carry out a pre control of sealing of
the sealing ring (ref.: 441117) (to make sure that caulking is good) and also the seal of pis-
ton (ref.: 449091).
•
Step 13
: Remove the pneumovalve from the chuck, lubricate the interior of the body by
depositing 3 to 4 vaseline oil drops.
•
Step 14
: Put the spring, install the lock washer (Ref.:900000571) (shoulder inside), close with
the internal circlip (Ref.:X4KQNT117) (if possible, make the assembly on a press in order to
compress the spring and to facilitate the assembly of the ring).
•
Step 15
: Pilot between 5 and 6 bar.
Result of the test
:
• For the piston seal (ref.: 449091), not of audible leakage with approximately 30 to 50 cen-
timetres of the ear.
• For the sealing ring (Ref.: 441117), put a water drop in the ddrain hole of the stuffing box
body (Ref.:1312749), there should not be bubble.
• Switch off the air.
•
Step 16
: Assemble the plate of visualization (ref.: 1410082) (P7 marking must be visible).
•
Step 17
: Screw and block slightly the cap nut (Ref.:X4KEHB003) ) if necessary lock the axis
on the chuck
Assembly of the needle:
• Fix the needle which will be positioned until it stops against the shoulder of the axis.
