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NOTE: Mount holding block on portside of strut with left hand
propeller and on starboard side of strut with right hand propeller.
A) Move holding block into position until the tip of the wedge on
the stationary cutter is 1/2 way into V of holding block. (Stop lines are
marked on holding block). This positioning is necessary to take up
forward and aft shaft end play allowing stationary cutter to move
forward and aft. (Shafts move slightly forward when vessel goes forward and
slightly aft when in reverse). We refer to this as end play.
(Refer to Holding Block
page.)
B) (Photos #12 and #13). Mount holding block with one screw.
Then drill and tap other 2 holes with holding block in place.
C) Holding Block #4,#5,#5A
First - Drill an tap upper hole. Second - Drill and tap lower
hole. Third - Drill and tap forward hole.
| PROCEDURES WHEN SHAFT TAPER EXTENDS INTO
CUTTER MOUNTING AREA |
IDEAL INSTALLATION POSITION
Diagram "A" shows a straight shaft under an area where cutter is to
be mounted. This will assure full clamping and seating of cutter onto
shaft. |
ACCEPTABLE INSTALLATION POSITION
Diagram "B" shows part of the shaft taper under the cutter. As you
can see, this allows approx. 3/4" of cutter width to clamp on straight
shaft; however, it gives adequate holding power for cutter. |
IMPOSSIBLE INSTALLATION **
Diagram "C" - Do not attempt this installation. Cutter cannot clamp
on a full taper. The cutter follows the taper and causes loosening and
spinning of the cutter on the shaft.
It is impossible to clamp a cylinder onto a cone and expect it to
hold. |
**NOTE: When a full taper is in the space where the
cutter is to be installed, there are other options: (1) CUT a ring from
strut boss or (2) Install a "SPURS" Spacer between transmission and shaft
flanges. (Refer to special conditions on the following pages).
| * Allow minimum of 3/16" between strut and line
cutter for end play and water flow. (When there is excessive end play
or loose motor mounts, allow more space accordingly.) |
"F" SERIES CUTTERS -When possible mount block on top of
strut.
          
 Marine Manufacturing
Inc.
201
SW 33rd Street Ft. Lauderdale, FL 33315 USA
E-mail: spurs@spursmarine.com
phone: (954) 463-2707
Fax: (954) 525-0239
spurs cutters are protected by USA and International patents
logo is a trademark of Spurs Marine Manufacturing Inc
Copyright ® All rights reserved.
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