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Formular-Nr.:51   Rev.-Nr.:10   01/18

 

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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! 

 
 

 

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 page 11 )

 

 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. 
 
 

 
ATTACHING THE ZINC-CONE: 

First,  insert  all  three  zinc-cone  screws 

(1)

  loosely,then  tighten  securely  in  succession.  Use  LOCTITE  low 

(pink)  and  observe  the  little  washers.  They  prevent  the  grease  from  squeezing  out  of  the  hub  during 
operation. Be sure to clean the screws and screw-holes from any grease before applying the loctite.  
 

ENGINE DRY TEST:

   

Please consider that the 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!!

 

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).  Remove  the 
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 11 ) 
and secure it with the lock pins (3). Fit the 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 10. 

Only  two

  of  the  three  lock-pin 

holes  can  be  used,  depending  on 
the  final  position  of  the  shaft-nut 
flange. 

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. 

3

Summary of Contents for DF-80

Page 1: ...on the Saildrive page 3 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 Remov...

Page 2: ...the VARIPROP is fitted onto the shaft The VARIPROP needs water pressure on the blades otherwise the prop could be damaged Before fitting the VARIPROP onto the shaft check key and keyway in the propel...

Page 3: ...avoid on axis movement Some careful wiggling may be required to find the exact position where the hub slides unto the spline After removal ot the zinc cone 4 and the propeller nut 1 the propeller hub...

Page 4: ...actuating lever between the neutral position and end positions for forward and reverse can be found in the owners manual of your transmission A larger amount of lever travel is in no way detrimental...

Page 5: ...or R with the 5mm Allen key as follows 2a Increasing of pitch approx 3 max 2a Increasing of pitch approx 2 max Turn the adjusting screw 2 clockwise Turn the adjusting screw 4 anti clockwise see NOTE a...

Page 6: ...R with the 5mm Allen key as follows 2a Increasing of pitch approx 3 max 2a Increasing of pitch approx 2 max Turn the adjusting screw 2 clockwise Turn the adjusting screw 4 anti clockwise see NOTE and...

Page 7: ...ub face under the zinc anode To return to original factory pitch settings line up AH or V resp AS or R markings on the hub face Example check adjustments ahead inner marking has moved original factory...

Page 8: ...6 will fit snugly and evenly to the aft boss CAUTION DO NOT OPEN THE HEXAGON SOCKET SCREWS 5 It would dismantle the two separate halves of the VARIPROP hub 4 Now turn the hexagonal head bolt 9 against...

Page 9: ...ly to the aft boss CAUTION Do not dismantle the two separate halves of the VARIPROP hub In this mode remove the last hexagonal socket screw 5 as well and fit the third long hexagonal head screw Take c...

Page 10: ...y turning at the absorber area is normal and necessary for the function Make sure that you always keep the zinc anode in good condition The VARIPROP must be protected by a lot of zinc so also use a zi...

Page 11: ...125 Nm 95 ft lb UNC 3 4 10 M 24 x 3 BSW 1 8 210 Nm 155 ft lb UNC 1 8 M 14 x 1 5 BSF 1 2 16 40 Nm 30 ft lb M 16 x 1 5 BSF 5 8 14 70 Nm 50 ft lb UNC 5 8 18 M 20 x 1 5 BSF 3 4 12 135 Nm 100 ft lb UNC 3...

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