Pitch Adjustment
A. Adjusting the forward pitch:
1. Remove the set screw (1) (3 mm allen key).
Under water: only 2 turns loosen.
2. Turn the adjusting screw (2) which is marked as
“AH” or “V” with the 4 mm Allen-key as follows:
2a. Increasing of pitch:
»
Turn the adjusting screw (2) clockwise.
(see “NOTE” and page 8)
»
Secure set screw (1) with LOCTITE low (pink)
Lock set screw (1) 3 Nm / 2 Ft.lb.
2b. Reducing of pitch:
»
Turn the adjusting screw (2) anti-clockwise.
(see “NOTE” and page 8)
»
Secure set screw (1) with LOCTITE low (pink)
Lock set screw (1) 3 Nm / 2 Ft.lb.
B. Adjusting the reverse pitch:
1. Remove the set screw (3) (3 mm allen key).
Under water: only 2 turns loosen.
2. Turn the adjusting screw (4) which is marked as
“AS” or “R” with the 4 mm Allen-key as follows:
2a. Increasing of pitch:
»
Turn the adjusting screw (4) anti-clockwise.
(see “NOTE” and page 8)
»
Secure set screw (3) with LOCTITE low (pink)
Lock set screw (1) 3 Nm / 2 Ft.lb.
2b. Reducing of pitch:
»
Turn the adjusting screw (4) clockwise.
(see “NOTE” and page 8)
»
Secure set screw (3) with LOCTITE low (pink).
Lock set screw (1) 3 Nm / 2 Ft.lb.
It is quite possible to set the pitch con-
tinuously variable and independently for
forward and reverse. The turning of the
adjusting screws (2) & (4) in Figure “Exam-
ple” by half a revolution changes the pitch
approx. 1“. That means a quarter turn (90°)
changes the pitch by ½” and a one full turn
by 2” etc. For a check of pitch adjustments
there are markings on the hub rotating
flange. To return to original factory pitch
settings, line up “V” resp. “R” markings on
the hub face. (see example beside)
Marked lettering of a LH Propeller
+
+
-
-
Formular-Nr
.:51 Re
v.-Nr
.:09 08/07
4
5
Installation on a Shaft
»
mount the hub (1) on the shaft (2). Make sure the prop
taper and keyway mate properly with shaft and key and
the top of the key does not touch the hub! File key if
necessary.
»
Fit the counter screw (9) into the thread for the setscrew.
Pay attention not to set the prop nut with the counter
screw!
»
apply a small drop of loctite “medium” to the threads of
the nut (3) and tighten strongly 80 Nm / 60 Ft.lb), while
blocking the hub with one hand against the counter
screw.
»
after tightening the prop nut (3) remove the counter screw
(9)
»
apply a small drop of loctite to the thread of the setscrew
(4) and tighten (20 Nm / 15 Ft.lb.).
»
align the blade assembly (5) with the boring and pivot
pins and push onto the hub (1).
»
mount the socket screws (7) with washers (6) and tight-
en (50 Nm / 37 Ft.lb). use loctite “medium” to secure the
socket-screws (7).
»
apply a small drop of loctite “low” to the threads of the
set screws (8) and tighten (10 Nm / 7 Ft.lb)
»
check the function and see that the blade movement is
free.
»
make sure you have a shaft anode with good contact to
the shaft.
WARNING:
Engage forward/reverse at idling RPM`s only. Stop the engine immediately if any strange sounds or vibrations are
noticed coming from the propeller. Check that the propeller works in both forward and reverse before starting each
voyage. Do not start the the engine until the boat is in the water. Keep away from moving parts while handling the pro-
peller, the blades are like knives, and can cause considerable damage. Do not attempt to come close to the propeller
unless the engine is stopped.
1
1
3
3
7
4
5
6
9
2
8
1. Hub
2. Shaft
3. Nut
SW24 (VP-64)
or
SW30 (VP-76)
4. Set-Screw
M8x12 (VP-64)
or
M8x16 (VP-76)
5. Blade assembly
6. Washer ø10
7. Socket Screws
M8x25 (VP-64)
or
M10x30 (VP-76)
8. Set-Screw
M6x10 (VP-64)
or
M8x12 (VP-76)
9. Counter Screw
M8x120
In general the pitch settings are done in the factory and are
ready set for your boat and engine. Should it be necessary
to adjust the pitch it is very simple on the VARIPROFILE,
and can be done in or out of the water in a matter of few
minutes.
Possible reasons for pitch adjusting might be:
»
If the engine does not reach the desired RPM
reduce the forward pitch.
»
If the engine exceeds the desired RPM
increase the forward pitch.
»
If the prop walk in astern is too strong
reduce reverse pitch.
Possible adjustment range see pitch sheet at page 6.
Example below is showing a RH display
LH lettering is marked to Detail “D” & “E”
R= AS (Astern)
V= AH (Ahead)
NOTE: It is quite possible to set the pitch continuously variable and independently for forward and reverse. Turning
of the adjusting screws (2) & (4) by half a revolution (180°) changes the pitch approx. 1“. This will change the engine
revolution by approx. 200.
Möglich einstellbare Steigung
siehe Tabelle S. 5!
Pay attention
not to set the
prop nut with the
counter screw
