Vetus ZWB35 Manual De Instrucciones página 3

Spare Propeller Shaft Seal 'ZWB35', 'ZWB40', 'ZWB45', 'ZWB50'
Propeller Shaft Seal Replacement
N.B. The numbers refer to the numbers in the
drawings.
Warning
Never remove the shaft seal when the
vessel is off shore.
Remove the 2 hose clamps which secure
1
the inner bearing to the sleeve.
Loosen the water supply hose and remove
the inner bearing together with the shaft
seal from the propeller shaft.
Disassemble the bolts and take the old
2
shaft seal apart from the inner bearing.
Remove old grease if present and clean
the inner bearing.
In addition to lubrication by sea water, the
3
seal must also be lubricated with grease
between the seal lips.
N.B. The rubber section is vulcanized
inside the bronze piece and cannot be
removed.
Clean the propeller shaft, especially where
4
the shaft touches the flexible bearing and
seal.
Grease the shaft and the lips of the shaft
seal.
Only use the grease supplied. Any other
lubricants could damage the shaft seal,
the sleeve, or the rubber bearing.
Fit the inner bearing on the propeller shaft
5
and slide it into the sleeve.Tighten the
hose clamps (4 to 5 Nm torque).
Stick a piece of adhesive strip 'A' over the
6
keyway. This will prevent the shaft seal
being damaged when fitted on the shaft.
3
Damage to the seal edges will lead to
leaks!
Grease the seal lips. Fit the shaft seal on
the propeller shaft. Ensure that the O-ring
is properly in place and secure the shaft
seal with 3 screws.
A
Remove the screw with the washer and
7
fill about 50% of the forward space with
grease (approx. 1 to 2 cm
the grease supplied! Replace the screw
and the washer, tighten it to about
5Nm.
B
Reinstall the water supply hose.
After launching
Check the following for leakage immediately:
the shaft seal, the rubber sleeve connections,
and all the hose connections.
It may be necessary to bleed the assembly
first. Disconnect the hose from the inner bear-
ing until water flows out.
Always open the seacock (after the water
scoop) before casting off.
Check the shaft seal for leaks and its tempera-
ture while cruising. An excessively high tem-
perature indicates insufficient water for lubrica-
tion and cooling!
ENGLISH
3 ). Use only
3.0304