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NT 1008-D00 08 18 P BI series e
6. OPENING AND CLOSING THE DRIVE SIDE BASE
(continued)
6.3 Changing the bushing
Dismantling
:
• Loosen the 3 screws
726
.
• Remove the front cover
401a
from the strainer
725
by
sliding it along the shaft
501
(be careful not to drag the
shaft seal or subject it to any impact).
• Extract the ring
407
by pressing it home with a sleve-
tube.
Reassembly
:
• Position the front cover
401
vertically on its small side
and insert a dummy
422a
in the place of the disk
422
.
• Mount the ring
407
by pressing the latter home with a
sleeve-tube.
• Take out the dummy disk
422a
and replace the disk
422
.
NOTA :
The side of the ring must be offset by 0,1 mm relative to
the cover disk 422.
• Fit the front cover
401
on the strainer
725.
If there is a double shaft seal, index the seal insert and
the front cover.
• Tighten the 3 screws
726
.
6.4 Reassembly the vanes and pushrods
• Position the shaft
501
vertically with the front cover
401
facing down.
• Proceed, as necessary, to replace the wearing disk
422
(to remove the old disk, it may be necessary to break it).
Clean its seating before reassembling a new disk.
•
Caution
: Take care with the positioning of the disk.
The 3 holes must be opposite the 2 circulation holes of
the front cover and the pin
423
(P15, P25, P40 only).
• Replace as necessary the seal
403
and fit it with a sui-
table lubricant.
• Fit the keyways
536
(after checking their wear).
• Insert the rotor
301
on the shaft
501
.
CAUTION