31
Maintenance
Assembly
3.
Alternately place 11 stainless steel balls (24) and 11 PTFE balls (33) on
the lower raceway.
4.
Place the vertical shaft bearing bush (7) on the top of the spare vertical
shaft bearing bush or the bar (28 mm) and carefully lift the body (18) to
allow the vertical shaft bearing bush (7) to hold the balls in position.
5.
Place this assembly on the inlet cap (29); avoid disturbing the position of
the balls.
6.
Alternately place 14 stainless steel balls (24) and 14 PTFE balls (33) on
the upper raceway of the vertical shaft bearing bush (7).
7.
Fit the bearing retainer plate (3) with three M4 x 10 pan head screws (32)
and tighten.
8.
Fit the O-ring (23).
9.
Fix the bevel gear (8) to the body with four M5 x 10 cap head screws
(26).
Assembling the
Nozzle Body
Carry out the following steps:
1.
Position the nozzle body (13) on a flat surface with the four holes facing
downwards. Wet he raceway of the nozzle body insert (36).
2.
Alternately place 12 stainless steel balls (24) and 12 PTFE balls (33) on
this raceway.
3.
Cut the PTFE O-ring (25) as illustrated on the spare parts drawing and
insert it into the groove of the nozzle body shaft (12).
4.
Insert the shaft into the nozzle body (13), taking care not to disturb the
position of the balls.
5.
Apply a light film of water to the raceway of the nozzle body shaft (12)
and alternately place 10 stainless steel balls (24) and 10 PTFE balls (33)
on this raceway.
6.
Carefully slide the bevel gear (9) onto the nozzle body (13) and secure it
with four M5 x 45 cap head screws (27).
7.
Hold the protruding threaded end of the nozzle body shaft (12) and
check whether it runs freely.
Final Assembly
Carry out the following steps:
1.
To fit one of the nozzle bodies (13), insert the threaded end of the nozzle
body shaft (12) into the T-piece (10). Insert the end of the nozzle
body shaft with the guide elements through the opening and tighten.
Repeat this procedure for the other nozzle body (13).
2.
Insert the lower vertical shaft (2), complete with the 6 teeth type rotor (4),
through the body (18), screw it into the vertical and horizontal T-piece
(10) and tighten.
