Formular-Nr.:71 Rev.-Nr.:07 03/18 -1-
Manual for the Feathering Propeller
DF-160 and DF-180
Installation on the shaft page 2
Operation page 4
Pitch adjustment LH ( left-hand rotation propeller ) page 5
Pitch adjustment RH ( right-hand rotation propeller) page 6
Defining and checking adjustments page 7
Removing from the shaft page 8
Servicing page 9
Torque settings prop-nut page 10
Formular-Nr.:71 Rev.-Nr.:07 03/18 -2-
INSTALLATION on the shaft
The VARIPROP is delivered assembled, greased and ready for installation.
He may not be disassembled, otherwise the warranty claim goes out!
BLUE FIT CHECK of PROPELLER:
The propellers are manufactured to close tolerances and
therefore care must be taken when handling and mounting. Prior to mounting it may be necessary to
check the blue fit of the propeller to guarantee a close fit to taper size. If the blue fit is unsatisfactory
due to temperature differences it may be necessary to ream the propeller to suit. Therefore please use
the grinding paste supplied with the propeller.
It must be noted however that all blue fits will have been 70 to 80% of the taper lenght.
MOUNTING:
First slide the prop on the shaft without key. Mark the shaft with a grease-pen at the prop end.
After tightening the shaft nut very strongly ( torque-setting see page10 ) the mark must disappear. If not, the
key is binding and the top or the sides of the key must be filed down. Light must be shining through on the
top of the key when looking into the hub from astern. You may have to move your eye vertically to see it.
Before fitting the VARIPROP onto the shaft, check key
and keyway in the propeller hub. Take care that the key
is the proper dimension and that the hub slides
completely onto the shaft (see below). Also check the
nut on thread of the shaft before fitting the prop. If you
can not screw the nut the complete length of the
thread, because of a little damage to the thread,
carefully use a triangle file to bring it down to a good fit.
Remove the housing cap with zinc anode (2) and the
nut (4). Fit the propeller onto the shaft strongly. Tighten
the nut (4) with LOCTITE low (pink) onto the shaft
( torque-setting see page 10 ) and secure it with the
lock pins (3). Fit the housing cap with anode (2).
Make sure that the propeller is always protected from
electrolytic corrosion by changing the anode (2) latest
every year! May not be necessary in freshwater.
After
the VARIPROP has been fitted properly check that the
blades rotate freely from the forward stop to the
reverse stop. The shock absorber function can be felt !
See servicing page 9.
Only two of the three lock-pin holes can
be used, depending on the final position
of the shaft-nut flange ( 3 ).
Carefully align the lock-pins (3) straight. They must go
in easily. If not, try first to tighten the propnut a little
further until they do. If impossible, back off the nut a
little. The lock-pins should be hand tightened only.
If overtightened they may strip.
Formular-Nr.:71 Rev.-Nr.:07 03/18 -3-
INSTALLATION on the shaft
ATTACHING THE HOUSING CAP with ZINC-ANODE:
First, insert all three housing cap screws (1, also page 8) loosely, then tighten securely in succession.
Use LOCTITE low (pink) and observe the little washers.
ENGINE DRY TEST:
Please consider that a dry test of the engine MUST NOT be done while the VARIPROP is fitted onto
the shaft ! The VARIPROP needs water pressure on the blades, otherwise the prop could be
damaged !!
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