Luhrs 31-Open Guide de démarrage rapide
31-Open
Rigging Manual
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Figure: 1 is showing the boat on the
truck as it arrives at your dealership.
The boat will be shrink-wrapped with
netting over it. The shrink wrap and
netting will have to be removed before
rigging the boat. Look the underside of
the boat over for any shipping damage
that might have happened during
delivery and document if any is found.
In figure: 2 you notice that the sunshade
and console are shipped separately from
the boat on its own cradle. This will be
secured on the front of the truck. Look
over sunshade and console for any
shipping damage and document. The
sunshade needs to be unsecured from
cradles before setting on top of hardtop.
Figure: 3 is showing the tube that the
steering lines and the electronic control
cable and nav light harness come up
from the engine room to the upper
console. They will be inside the ladder
tubing for shipment. There is a
retrieving line tied to them that gets
pull and will pull up the steering lines
and cable from the engine room. It is
requested that a second person goes
into the engine room and helps feed
lines to insure that the lines don’t get
kinked while pulling into tube.
Figure: 2
Figure: 3
Figure: 1
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Once all lines are pulled snug as
shown in figure: 4.The console and
sunshade are ready to be put on
top of the hardtop. The whole
upper station can be picked up as
one piece. Make sure to support
the console when lifting. Best
procedure is to use a forklift and
pick up the upper station while still
on the cradle and slide upper
station off cradle once you get it
Figure: 5 is showing how to
connect the aft legs of the upper
tower to the ladder after the upper
station is in place. The outside leg
has a collar that tightens with allen
bolts and the inside tube connects
with allen bolts into each other.
Both the collar and allen bolts are
provided in the loose gear kit. This
will be the same on both the Port &
Starboard aft legs.
Figure: 6 is showing the base of the
seat pad. Install using ¼ x 20 x 1” f/h
screws provided in rigging kit to
secure seat. There will be pre-drilled
holes that have been pre-tapped at
the factory that you line holes in pad
up with for ease of installation. Make
sure to use 5200 sealant provided in
loose gear to get a water tight seal.
Do this with both pads that are under
upper bench seat.
Figure: 5
Figure: 6
Figure: 4
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Figure: 7
Figure: 7 is showing the foot pad
under the console. To secure use
¼ x 20 x 1” f/h screws to pre-drilled
and pre-tapped holes done at the
factory. Line holes up on hardtop
with pad holes and secure.
Remember to use 5200 sealant for
a water tight seal. This will be done
on all 4 pads under to upper
console.
Figure: 9 shows the hole into the
console in which all the harness feed
into the upper console through the
starboard console tube. Secure tube
with ¼ x 20 x 1-1/4” f/h screws with a
¼” washer, lock washer & hex nut.
Tighten and then use ¼” cap nut to
dress it off. Make sure to use 5200
sealant for water tight seal.
Figure: 9
Figure: 8 & 8a shows a picture of the
starboard fwd console tube with all the
harnesses already ran through it. It will
be secured to the Fwd hardtop leg for
shipment. Undo and feed harnesses
through the hole in the console in
figure: 9. Use 5/16” x 1” f/h machine
screws to secure fwd leg to hardtop
into pre-drilled and pre-tapped holes
that were set up at the factory.
Remember to use 5200 for water tight
seal. Port fwd leg will secure the same
way.
Figure: 8
Figure: 8a
`
Figure: 10 shows the harness
connections. The harnesses will
plug together by size of plug and
color to color plug ins. Once
plugged together, put a tie wrap
around plug to help from
possibility of coming apart.
Figure: 10
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31-Open
Rigging Manual
Figure: 11
Figure: 11 is showing the
Glendinning electronic control
hook up.
Figure: 12 is showing the
steering lines hook up. The Port
line will be marked with Red tape
and the Starboard will be marked
with Green tape. Station to
Station will be black.
Figure: 12
PROPELLER INSTALLATION
The proper procedure regarding the installation of marine propellers is detailed here for
the benefit of dealers, service people, and customers alike. This is to insure proper
installation in accordance with the A.B.Y.C. and good industry practice.
A. Inspect propeller for shipping damage when removing from box. If the box is damaged, check
the propeller carefully.
B. Clean any burrs, tape residue, or any other foreign material from the propeller end of the
shaft, and key seat.
C. Carefully slide the propeller onto the shaft as far as it will go without the key installed.Mark
the shaft with a pencil. Check the fit of the taper by attempting to rock the propeller while tight
on the shaft. No rocking should occur.
D. Carefully remove the propeller and set aside. Fit the key into the key seat on the shaft and
within the propeller hub with a fine mill file or fine Emory on a flat surface. File only the key.
The key seat width may vary from nominal to minus .001” (nominal + .000/-. 001”). In good
practice this means that the key seat width in the propeller can vary from the key seat width
in the shaft by as much as .001”. The key must be filed (lengthwise) to achieve a good fit for
each key seat. A good fit has been achieved when the key can be slid into position with no
slack in the key seat, and with no hammering. A key that is too tight or too loose can damage
the shaft or propeller hub, or both.
Proper Method of Propeller Shaft Key Stock Installation.
The A.B.Y.C. and the S.A.E. standards specify an allowable tolerance in key seat width for 1
½” and 1 ¾” diameter shafts of nominal to minus .001 (nominal +001”/-. 001”). The following
table lists allowance minimum and maximum key seat widths for each shaft size.
Shaft Size Maximum Key Seat Width Minimum Key Seat Width
Note: If Rocking occurs, contact Luhrs / Mainship Corporation customer
service for corrective action.
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1 ½” .3750” .3740”
1 ¾” .4365” .4375”
The problem that presents itself here is the probability of the various key seat widths encountered
when installing a propeller.
A. Place the key into the key seat on the shaft. Be sure the key is correctly oriented.
B. Slide the propeller up onto the shaft, making sure the key does not ride up and forward within the
key seat. The propeller hub should position itself to the mark previously made. If the hub does not
align itself with the mark, the key has not been properly fit. Refit the key.
C. While holding the propeller in place, start the large nut (Chamfered Side of Nut towards
Propeller, see figure #13) until hand tight to prevent movement and keep the propeller from
falling off.
D. Place a wood block between the blade and the ground, then tighten the large shaft nut. Install
and tighten the smaller jam nut, see figure #14 (Chamfered Side of Nut Away From Propeller).
Insert and bend over the cotter pin. Remove the block of wood.
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Figure #13
Figure #14
Large propeller nut. Install first with
chamfered side towards to propeller.
Chamfered side of
nut.
View of the jam nut. Install with the
chamfered away from the propeller.
After nuts is tight insert cotter pin to
prevent nuts from coming loose.
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E. Cut the plastic tie wraps holding the coupling faces together. Slide the shaft coupler and the
transmission coupler together, do not install bolts at this time. Look at the cutless bearing
(figure #16), and the shaft log, (figure #15), check to see if the shaft is sitting in the center.
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Check to see that the shaft is in the
center of the shaft log. If it isn’t call
Luhrs Corporation customer
service department for corrective
action.
Check to see that the shaft is in the
center of the cutless bearing. If the
bearing looking to be pinched call
Luhrs Corporation customer service
department for corrective action.
Figure #15 Figure #16
BATTERIES
A. Assure that All switches are turned off (including battery switches and switch inside
refrigerator).
B. Check to see if batteries are charged and install into battery boxes. Connect battery cables.
C. Install protective positive battery boot over the positive battery terminal.
Check Trim Tab Operation
A. Check operation of trim tab switches.
B. Press the Stbd/Bow up switch. The port trim tab should go up.
C. Press the Stbd/Bow down switch. The port trim tab should go down.
D. Press the Port/Bow up switch. The starboard trim tab should go up.
E. Press the Port/Bow down switch. The starboard trim tab should go down.
Launching Boat
Launch the boat, leaving it in the sling until the following initial checkout is complete.
Initial Checkout:
A. Check the shaft logs (2) where applicable, rudders, shaft strut mounting bolts (12) where
applicable, garboard drain plugs, and through hull exhaust for leaks.
B. Check the following through hull fittings for leaks: Refer to owner manual for the location of
through hulls.
Cooling water inlet (2) where applicable.
Exhaust outlet (2) where applicable
Generator water inlet (1) where applicable
Air Conditioning inlet (1) where applicable
Toilet inlet (1)
Macerator outlet (1)
C. Open through hull valves and check for leaks.
D. Check drain plugs on mufflers.
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Note: There should be No spark when the battery cable touches the battery
Terminal.
Shaft Coupling Installation
Inspect the mating faces of the coupling flanges to be sure they are clean and have no nicks that will
prevent the couplings from mating properly.
Check to be sure that the coupling flanges are aligned by pulling the propeller shaft coupling against
the engine coupling. The shoulder on the shaft coupling should mate with the recess in the
engine coupling with minimum resistance.
Check the coupling flanges for any angular misalignment. Holding the coupling
flanges together by hand check for misalignment by trying to insert a 0.004” feeler gauge
between them.
Check the coupling flanges faces again after turning the shaft coupling 180 degrees. If the location of the
clearance gap changes 180 degrees, a bend in the shaft or a faulty coupling is indicated.
Insert and tighten the coupling bolts to a torque of 50 LB-ft. Successively tighten bolts is a cross pattern to
prevent warping a coupling flange.
Warning; Make sure that the battery cables are disconnected before proceeding to prevent
the possibility of anyone accidentally starting the engine and engaging it in gear.
Note: Final engine alignment must be done in the water and the fuel
tanks full.
Note: If the couplings do not mate properly, contact the service
department at Luhrs-Mainship Corporation for corrective action.
Note: If the coupling flange faces will accept a feeler gauge larger than
0.004”, contact the service department at Luhrs Corporation for
corrective action.
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