6. Maintenance
6.1 Lubricating the Jet Pipe Thread
When changing the main nozzle, the thread at the jet pipe and the O-ring seat should be cleaned and
lubricated properly. This will ensure that the nozzle can be easily removed in the future.
Figure 4
Outlet Nozzle
for Control Water
Stiffening Ribs
!
If the safety screw can't be
tightened, it may hitting a stiffening
rib of the piston drive. In this case, the
gray cover has to be pulled tighter so
the safety screw passes the stiffening
rib.
O-ring
Jet Pipe
Nozzle
7