LENCO SVB User manual

WE MAKE THE BEST BOATS BETTER!
The world leader in
trim tab systems &
hatch lift innovation.
Owner's
Manual

LENCO MARINE
1
The contents of this manual are subject to change without notice and do not constitute a commitment on the part of Lenco Marine,
Inc. Every effort has been made to ensure the accuracy of this document. However due to ongoing product improvement and revision,
Lenco Marine cannot guarantee the accuracy of printed material after date of publication nor can it accept the responsibility for errors
or omissions. Lenco Marine will update and revise this document as needed. Reproduction or duplication of the manual, or any part
thereof is prohibited without the expressed written permission of Lenco Marine, Inc. All rights reserved. © 2013 Lenco Marine, Inc.
Lenco Electric Actuators
Contents
Trim Tabs
Overview ................................. 3
Special Conditions ......................... 4
Safety ................................... 4
Installation Instructions .....................5-8
Switch Operation
Operation................................. 9
Switch Wiring Diagram Standard #124SSR ..... 10
Switch Wiring Diagram Indicator #123SC....... 11
Switch Wiring Diagram Dual Ram Indicator ..... 12
Switch Wiring Diagram Double Rocker......... 13
Switch Mounting Template .................. 22
Bennett Marine RetroFit Kit
Installation Instructions ...................14-15
Wiring Diagram ........................... 16
Hatch Lifts
Installation/Operation ...................... 17
Wiring .................................. 17
Mounting ................................ 18
System Parts ............................. 18
Trim Tab Maintenance Tips........................19
Warranty Policy ................................ 20
Glossary ...................................... 21
Switch Template................................ 22

2
Owner’s Manual
Lenco Trim Tabs:
•Electric
• Fuel efficient
• Oil-free
•Environmentally
friendly
CONGRATULATIONS!
You have just purchased the finest trim tab
system in the world! Welcome to the future.
Lenco trim tabs make the single most important difference
in the way your boat rides and performs. They are optional
on some boats but should be as standard as power trim
and tilt. Lenco trim tabs make your boat ride smoother,
drier, faster and with increased safety whether on a small
skiff or a mega-yacht. Our ball screw design makes
our tabs more reliable and twice as powerful as typical
hydraulic trim tabs. Coupled with any of our trim tab
switches, they also perform with instant response which
makes them more precise and user-friendly.
Our goal is to manufacture products that simply make
boating more enjoyable.
Visit our website: www.lencomarine.com
All Lenco Trim Tab products
are CE certified
Electro-polished solid
316 stainless steel billet
end for Extreme Duty,
Heavy Duty, and High
Performance applications
1. Stronger top cap and
mounting clevis design.
2. New and improved
pressure-tight torx
screws.
3. Integrated wiper seal
at actuator base.
4. Molded-in brass
thrust bearing design.
5. Thicker and stronger
motor housing wall.
6. Improved O-Ring
design for a more
consistent seal.
7. Over-molded cable
providing a stronger
tighter seal.
8. Upper mounting
bracket w/ gland seal.
6
7
8
5
4
3
3
4
5
7 8
9
6
regnortssingisedsivelcgnitnuom&pacpotweN-1
and more durable.
etanimileswercsxrotfoorp-repmat,elfiorpwolweN-2
the threaded rod protruding from the actuator cap
providing an improved, pressure-tight seal.
tahtsenilgnitrapsetanimilengisedlaesgnir-OweN-3
remained from the molding process allowing for a
more consistant seal under extreme loads.
hsurcsesaercnillawgnisuohrotomregnorts,rekcihT-4
strength by 50% and improves symmetry which
strengthens the O-ring seals.
sedivorpgniraebtsurhtssarbni-dedlomweN-5
support to the gear train and ball screw creating a
smoother, more stable run cycle which decreases
internal wear.
esabehttadetnuomlaesrepiwdetargetniweN-6
of the actuator provides greater stability during
operation and also serves as a scraper whereby
eliminating particle entry that could potentially
damage internal seals.
nasetaroprocningisedpacpotdedlom-revoweN-7
over-molded cable feature which eliminates the strain
relief and provides a much more consistent and
stronger seal.
Deutsch Connectors
Environmentally-sealed connectors (thermoplastic housings and silicone
seals) withstand conditions of extreme temperatures and moisture.
Properly wired and mated connections will withstand immersion under 3
feet of water without loss of electronic qualities or leakage.
Lenco 116 Mounting Bracket
with Gland Seal
Gland seal makes a water-tight
seal between the 116 mounting
bracket and the boats transom.
The gland seal slides over
the actuator wires to seal the
116 mounting bracket to the
transom.
1
3
4
5
7 8
9
6
regnortssingisedsivelcgnitnuom&pacpotweN-1
and more durable.
etanimileswercsxrotfoorp-repmat,elfiorpwolweN-2
the threaded rod protruding from the actuator cap
providing an improved, pressure-tight seal.
tahtsenilgnitrapsetanimilengisedlaesgnir-OweN-3
remained from the molding process allowing for a
more consistant seal under extreme loads.
hsurcsesaercnillawgnisuohrotomregnorts,rekcihT-4
strength by 50% and improves symmetry which
strengthens the O-ring seals.
sedivorpgniraebtsurhtssarbni-dedlomweN-5
support to the gear train and ball screw creating a
smoother, more stable run cycle which decreases
internal wear.
esabehttadetnuomlaesrepiwdetargetniweN-6
of the actuator provides greater stability during
operation and also serves as a scraper whereby
eliminating particle entry that could potentially
damage internal seals.
nasetaroprocningisedpacpotdedlom-revoweN-7
over-molded cable feature which eliminates the strain
relief and provides a much more consistent and
stronger seal.
Deutsch Connectors
Environmentally-sealed connectors (thermoplastic housings and silicone
seals) withstand conditions of extreme temperatures and moisture.
Properly wired and mated connections will withstand immersion under 3
feet of water without loss of electronic qualities or leakage.
Lenco 116 Mounting Bracket
with Gland Seal
Gland seal makes a water-tight
seal between the 116 mounting
bracket and the boats transom.
The gland seal slides over
the actuator wires to seal the
116 mounting bracket to the
transom.
2 2
LENCO ELECTRIC ACTUATORS

3
LENCO MARINE
Lowers
Starboard
Bow
Lowers
Port Bow
Lenco Trim Tab kits include two stainless steel
planes, two electromechanical actuators and
all mounting hardware for installation (Kits
with backplates do not include mounting
hardware). The trim tabs operate independently
of one another to provide optimal performance
by redirecting water flow at the transom of the
boat. Lenco Trim Tabs have been designed to
improve the overall attitude of a boat. If used
properly, Lenco Trim Tabs improve the ride,
reduce drag, increase speed and improve the
fuel efficiency of your boat.
The operation of Lenco Trim Tabs is basic. The
two stainless steel planes are mounted with the
actuators on the transom of the boat. When the
tabs are lowered, the water flow is redirected
creating an upward force at the stern of the
boat. When the stern rises, the bow will lower.
Since Lenco actuators are electromechanical,
they provide an immediate response at the
touch of the switch. This applies to all of our
trim tab switch kits. All Lenco switches are
based on the position of the bow. The left
side of the switch controls the starboard tab.
The right side of the switch controls the port
tab. The system is set up this way to minimize
the guesswork while underway. To lower the
starboard bow, press the right (starboard)
switch where it reads DOWN. To lower the port
bow, press the left (port) switch where it reads
DOWN.
Since all boats are different in weight, length,
speed and performance, it takes practice to
understand how your boat reacts with trim tabs
installed. Lenco Trim Tabs allow your boat to get
on plane faster and continue planing at lower
speeds. This improves visibility and the overall
safety of your boat. When making adjustments
with the trim tabs, use short momentary taps of
the switch.
To become knowledgeable on how your boat
performs with Lenco Trim Tabs, remember,
practice makes perfect.
The Lenco Tactile Switch is
based on the position of the
bow.
When the tabs are lowered,
the water flow is redirected
creating an upward force at
the stern of the boat.
Without Trim Tabs
With Trim Tabs
Lenco electromechanical actuators provide an instant response.
When making adjustments, use short momentary taps of the switch.
Standard
Switch Kit
#124SSR
Trim Tab Overview
Trim Tab Operation

4
Owner’s Manual
Trim Tab Operation
Head Sea — (Waves or current running directly against
the course of a boat)
Lower both tabs slightly by pressing
BOW DOWN on both sides. This brings bow down while
maintaining speed. This adjustment allows the hull of the
boat to absorb the impact of the waves, resulting in a
more efcient and smoother ride.
Following Sea —
(Waves or current running with the
course of a boat)
Make sure the tabs are fully retracted
by pressing BOW UP on both sides. This brings both
tabs to a fully retracted position decreasing lift in the
stern, allowing the bow to rise. If tabs are deployed, the
bow may dig.
Windy Chop — To raise the windward side of the boat
press BOW UP on that side. If this is not sufcient, press
BOW DOWN on the leeward side of the boat. Do not over
trim when attempting this. This allows the windward side
of the boat to rise and minimizes spray.
Shallow Water/Hole Shot — Lower both tabs completely
down by pressing BOW DOWN on both sides. This
provides lift in the stern of the boat and keeps the bow
down. As you throttle up and speed increases, raise tabs
by pressing BOW UP on both sides.
Uneven Load — If one side of the boat is higher than the
other while running, press BOW DOWN on the switch on
that side. This lowers the tab on the listing side (low side)
to bring the boat level.
Porpoising —
(When the bow of the boat leaps clear out
of the water after striking a wave.)
To stop porpoising,
press BOW DOWN on both sides of the switch. The tabs
need only to be deployed slightly to correct this adverse
situation.
• While the boat is underway, do not move one tab up or down signicantly
as this may cause listing.
• While at higher speeds, do not over trim. This causes the bow to lower
quickly, resulting in a reduction of speed and may cause the boat to veer.
• When running in a following sea the tabs should be fully retracted. This
allows for optimal performance.
• While operating trim tabs, use caution. Improper use of trim tabs may
cause accidents and/or injury.
SAFETY
SPECIAL CONDITIONS
HEAD SEA
FOLLOWING SEA
WINDY CHOP
SHALLOW WATER
HOLE SHOT
UNEVEN LOAD
PORPOISING

5
LENCO MARINE
Trim Tab System Installation Instructions
Warning: The following instructions contain important safety information and should
be followed carefully. Failure to do so may result in injury and will void warranty.
Please read through the instructions in their entirety prior to beginning installation!
Trim Tab Installation Instructions
• Electric drill
• Tape measure
• 3/16" & 3/8" drill bits (.48 & .95 cm)
• 7/16" (1.11 cm) wrench
• 1/2" or 9/16" wrench socket
• Straight edge
• 4' level
• 2" (5.08 cm) hole saw
• #2 & #3 Phillips screwdrivers
• 3M 5200 adhesive caulking
• Wire crimper / cutter
ANGLE OF THE TAB
UPPER BRACKET CORRECT ORIENTATION
LOWER BRACKET INSTALLATION
UPPER BRACKET CORRECT ORIENTATION TRIM TAB INSTALLATION
5/8"gap
(1.59 cm)
3/8"gap
(.95 cm)
14"
(35.56 cm)
maximum
transom
height
needed
HULL LINE
HULL LINE
9" TAB
(22.86 cm)
3/4"gap
(1.9 cm)
1"gap
(2.54 cm)
12" TAB
(30.48 cm) 16" TAB (40.64 cm)
2"
(or more)
2"
(or more)
3/8"
(.95 cm) up from hull
Edge of hinge must be
2" (5.08 cm) from strake
edge in either direction
1" to 4"
in from chine
TRANSOM
Bolts enter
from the
underside
of tab
FIG.2
FIG.3
FIG.4
FIG.5
FIG.1
Fig. 1
TOOLS AND MATERIALS LIST
Installation of Trim Tab Blades
1. To begin, determine where the Lenco Trim
Tab Kit will be installed. Note: When laying
out the desired tab location, hold the tab
against the transom with the bottom of
the hinge knuckle 3/8" (.95 cm) up from
the bottom of the transom, approximately
1" to 4" (2.54 to 10.16 cm) in from the
chine, and parallel with the hull.
Note: The reason the hinge knuckle
is mounted 3/8" (.95 cm) from the
bottom of the transom is to allow water
to continue to travel freely along the
bottom of the boat past the transom
edge. Tabs are also mounted in this
manner for protection while on a boat
trailer or when being dry-stored.
When mounting the hinge to
the hull make sure that the inside
corner of the hinge knuckle is no
closer than 2" (5.08 cm) to the left or
right of any strake edge. The hinge
may overlap a strake edge as long as
the corner of the hinge knuckle is no
closer than 2" (5.08 cm) to the left or
right of the strake edge (see Fig.1).
Transfer (trace) the hinge screw hole
pattern onto the transom for drilling.
Note: All Performance Series tabs
with single-tapered blades should be
mounted with the tapered end facing
toward the center of the boat.
2. Using the 3/16" (.48 cm) drill bit, drill
the previously marked hole locations to
a depth of 1-1/4" (3.18 cm).
Note: When drilling out the screw
hole pattern for the trim tab hinge you
may drill through the transom. Hinge
screws should be installed with 3M 5200
adhesive caulking which will seal the
holes. All supplied screws and fasteners
are stainless steel. Do not use any other
type of alloy.
Mount the trim tab hinge to the transom
using provided #14 x 1-1/4" (3.18 cm)
stainless steel sheet metal screws. We
recommend using 3M 5200 adhesive
caulking to bed the hinge and screws.
DO NOT OVERTIGHTEN.

6
Owner’s Manual
Installation of Upper and Lower
Mounting Brackets & Actuators
1. Loosely attach the upper mounting bracket
(bracket with four holes) to the top of the actuator
using the 5/16-18" X 1-3/4" (4.45 cm) large hex
head bolt and 5/16-18 hex nut provided. Attach
the actuator to the lower mounting bracket using
the 5/16-18" X 1-3/4" (4.45 cm) large hex head
bolt and 5/16-18" hex (.79 cm) nut provided.
Attach the lower mounting bracket to the tab with
the bolts, washers, and nylon lock nuts provided
(Kit# 4 - Part# 10000-001) (see Fig. 4).
2. In order to properly position the upper mounting
bracket against the transom, you must lift the
trim tab so that the trailing edge is approximately,
5/8" (1.59 cm) for a 9" trim tab and 3/4" (1.9 cm)
for a 12" trim tab, above the straight edge when
held to the hull (see Fig. 2.1 & 2.2). When the trim
tab is at the appropriate level and the actuators
are fully retracted, transfer (trace) the outer shape
of the upper mounting bracket onto the transom.
The upper mounting bracket should be marked
where it lays naturally against the transom to
prevent binding during functioning of trim tabs.
Note: Do not adjust the upper mounting bracket
to the right or left, as this will cause binding.
Allow the bracket to come to rest at its natural
position.
Remove the upper mounting bracket from the
actuator and align to the previously marked
location to mark the upper mounting bracket
screw hole locations and cable hole location.
Using the 3/16" (.48 cm) drill bit, drill the three
previously marked screw hole locations to a
depth of 1-1/4" (3.18 cm).
Warning: With some installations, fuel, water
tanks and/or other systems may prevent the
actuator cable from entering the hull through
the upper mounting bracket. Be sure to check
inside the hull before drilling the 3/8" (.95 cm)
cable hole.
Note: When drilling out the screw hole pattern
for the upper mounting bracket, you may drill
through the transom. The screws should be
installed with 3M 5200 adhesive caulking which
will seal the holes when installed.
All supplied screws and fasteners are stainless
steel. Do not use any other type of alloy.
(Continued on page 7)
Trim Tab Installation Instructions
5/8"
(1.59 cm)
14"
(35.56 cm)
max.
height
needed
for
actuator
3/8" (.95 cm)
9"
(22.86 cm)
3/4" (1.9 cm)
12"
(30.48 cm)
Standard Mount
Fig. 2 .1
Edge Mount
Fig. 2.2
Fig. 3
ANGLE OF THE TAB
UPPER BRACKET CORRECT ORIENTATION
LOWER BRACKET INSTALLATION
UPPER BRACKET CORRECT ORIENTATION TRIM TAB INSTALLATION
5/8"gap
(1.59 cm)
3/8"gap
(.95 cm)
14"
(35.56 cm)
maximum
transom
height
needed
HULL LINE
HULL LINE
9" TAB
(22.86 cm)
3/4"gap
(1.9 cm)
1"gap
(2.54 cm)
12" TAB
(30.48 cm)
16" TAB
(40.64 cm)
2"
(or more) 2"
(or more)
3/8"
(.95 cm) up from hull
Edge of hinge must be
2" (5.08 cm) from strake
edge in either direction
1" to 4"
in from chine
TRANSOM
Bolts enter
from the
underside
of tab
FIG.2
FIG.3
FIG.4
FIG.5
FIG.1
Fig. 4
3/4"
(1.9 cm)
3/8"
(.95 cm)
11"
(27.94 cm)
height
needed
for
actuator
in 12"
(30.48 cm)
tab length
13.5"
(34.29 cm)
height
needed
for
actuator
in 9"
(22.86)
tab length
9"
(22.86 cm)
12"
(30.48 cm)
5/8"
(1.59 cm)

7
LENCO MARINE
If all is clear, use the 3/8" (.95 cm)
drill bit and drill the previously marked
cable hole completely through the
transom. Insert the actuator cable
through the appropriate hole in the
upper mounting bracket until the
mount reaches the actuator. Insert the
actuator cable through the gland seal
until it reaches the rear of the upper
mounting bracket.
Note: For appropriate orientation
of upper mounting bracket and gland
seal, (see Fig 3 on page 6).
If, however, you are prevented from
drilling a hole through the transom at
the bracket location, using the 3/8"
(.95 cm) drill bit, simply drill a 3/8" (.95
cm) hole 4" to 5" (10.16 to 12.7 cm)
above the waterline and insert the
cable. Cover the hole and cable with a
clamshell vent sealed with 3M 5200 for
a waterproof and nished eect.
Insert the actuator cable through the
transom. With the actuator loosely
supported, start the provided #14 x
1-1/4" (3.18 cm) stainless steel sheet
metal screws through the upper
mounting bracket holes and into the
transom. MAKE SURE TO LEAVE
THE SCREWS ONLY PARTIALLY
INSTALLED.
Insert the actuator clevis (mounting
ear) into the upper mounting
bracket and hold the actuator in
the approximate installed position.
Pass the actuator cable through the
transom removing slack on the cable
until it looks like the installation on
Fig 2.1 on page 6. Finish installing the
previously started #14 x 1-1/4" (3.18
cm) stainless steel sheet metal screws
through the upper mounting bracket
and into the transom. We recommend
using 3M 5200 adhesive caulking to
bed the upper mounting bracket and
screws. DO NOT OVERTIGHTEN.
Attach and secure the actuator to the
upper mounting bracket using the
5/16-18 X 1-3/4" (4.45 cm) large hex
head bolt and 5/16-18 (.79 cm) hex nut
provided.
We recommend using 3M 5200
adhesive caulking to seal the cable
hole on the inside of the transom.
Attach connector ends to the actuator
wire pins as instructed in Actuator
Deutsch Connector Instructions
insert card provided. If using actuator
extension cables, this would be a
good time to run them to the control
box mounting area.
NOTE: SACRIFICIALANODESFOR
YOUR LENCO SS TRIM TABS
Be aware that stray currents in your
marina or in a visiting marina can
cause damage to your trim tab blades
if not protected by sacricial anodes.
•
The addition of anodes on each tab
will deter electrolysis.
• Do not paint under the anode or the
anode itself.
• Check Anode condition frequently.
Replace when necessary.
Switch Installation
Installation instructions for Standard
(124SSR), Indicator (123SC), and Dual Ram
Indicator (123DR) Digital Tactile Switches.
1. At the helm, determine where the
tactile key pad will be installed, locate
the template on page 22 and secure
to helm. Cut a circular opening using
a 2" (5.08 cm) hole saw (Hole must
be 2"). Before cutting, make sure the
area inside the helm is clear of wires
and other equipment that could be
damaged. Using the template on
page 22, drill four 3/16" (.48 cm) holes
through the helm.
2.
Install the black control box (hardware
not included) within 24" (60.96 cm) of
the key pad hole. Make sure control
box is mounted on a vertical surface
with wires facing down toward the deck.
Mounting the control box in the incorrect
orientation will void the warranty.
Trim Tab Installation Instructions
Installation Instructions continued from page 6.

Owner’s Manual
8
On the cable from the control box to
the key pad plug, there is a release
mechanism that needs to be squeezed
and released prior to pulling the cable
from the key pad plug (see Fig 1).
NOTE: Not releasing the locking
mechanism on the end of the cable
before pulling will cause damage to
the connector on the backside of the
key pad. This will cause failure with the
trim tab system and void the warranty.
Insert the four key pad posts into
the four holes and drop key pad
into place. Make sure that the 2"
hole has been cut to protect the
electronics on the underside of
the key pad. Secure the key pad with
the nylon nuts
(KIT9 - Part# 10008-001)
provided. DO NOT OVERTIGHTEN.
3. Following the trim tab switch wiring
diagram on pages 10-12, connect the
actuator wire leads or the actuator
extension cables to the switch
control box. Be very careful of sharp
edges that may damage the cables.
Remember the left side of the key pad
controls the right (starboard) tab and
the right side of the key pad controls
the left (port) tab.
Each digital tactile switch has a retractor
wire (orange) coming from the control
box. The tabs retract to the up position
when power or analog signal is removed
and then shuts the system down. You
have several switch options from which
to choose depending on your boating /
shing needs:
Orange Wire Connection Options
Standard Tactile Switch (124SSR):
• Connect to Key switch or ON/OFF
power source. Do not install the orange
and red wire on the same mechanical
switch.
• Connect to an engine analog tach signal
(Retractor feature activated when tach
or 12 Volt signal is removed).
• Do not install orange wire and retractor
feature will not be operational (it is not
necessary for the orange wire to be
installed for system to operate).
• 12 Volt system only.
Indicator Switches (123SC/123DR)
• Connect to Key switch or ON/OFF
power source. Do not install the orange
and red wire on the same mechanical
switch.
• Connect to an engine analog tach signal
(Retractor feature activated when tach
or 12/24 Volt signal is removed).
• Orange wire must be installed for
system to operate.
• For 12 Volt & 24 Volt systems.
Installation for Dual Rocker Switch (122)
This switch kit does not require a control
box. Please follow the wiring diagram on
page 13 for installation instructions.
Fig. 1
Trim Tab Installation Instructions
Congratulations you have just
successfully installed the #1
Trim Tab System in the world.
Please follow the instructions
and drawings carefully.
For further assistance please
visit
us at www.lencomarine.com
email us at [e-mail]
or call us at 772-288-2662
After mounting the control box, feed
the key pad cable up thru the 2" hole
and connect it to the backside of the
key pad. Leave adequate slack in the
cable connecting to the plug on the
backside of the key pad. No slack or
the tight bundling of the wires can
cause damage to the key pad plug!

9
LENCO MARINE
SWITCH OPERATION
The operation of all Lenco switches is
based on the position of the bow. To
lower the starboard bow, press the right
(starboard) side of the switch where it
reads Down. This lowers the port tab. To
lower the port bow, press the left (port)
side of the switch where it reads Down.
This lowers the starboard tab.
Indicator Switch (123SC) with Self
Check Feature
On the Indicator switch, the L.E.D. lights
on the sides of the display show how
far that tab has moved. When the on/
off switch is turned on at the helm or the
engine’s tachometer circuit becomes
active, the L.E.D. displays on the
indicator switch light from top to bottom
and immediately extinguish from bottom
to top to indicate self test at power up.
If there is a problem with an actuator
connection the L.E.D. displays shows
every other red light ”ON“ at the
side
that has the problem (see Fig.1). After self
test is complete (1 to 2 seconds) the L.E.D.
displays show one up arrow on each side
of the switch. This shows that both tabs are
fully retracted. While operating the tabs,
the L.E.D. displays indicate the position of
the tabs by lighting up the further they are
pressed down. As the switch is pressed up,
the lights go out. When power is removed
from the switch, the tabs retract from any
position before powering down (See page 8
for more information).
Dual Ram Indicator Switch (123DR)
At start up the L.E.D. displays show one
up arrow on each side of the switch. This
shows that both tabs are functioning and
are fully retracted. While operating the tabs,
the L.E.D. displays indicate the position of
the tabs by lighting up the further they are
pressed down. As the switch is pressed up,
the lights go out. When power is removed
from the switch, the tabs retract from any
position before powering down (See page 8
for more information).
Standard Switch
#15069-001(124SSR)
To lower the
starboard bow
To lower the
port bow
Indicator Switch with Retractor
#15070-001(123SC)
#15071-001(123DR)
Switch Operation
NOTE: There is no self check mode
for the Dual Ram Indicator Switch
Part # 15071-001.
Fig. 1

10
Owner’s Manual
Switch Wiring #15069-001 (124SSR)
RETRACTOR WIRE
Orange wire must be connected to an ON/OFF
power source for the retractor feature to function.
Key switch or ON/OFF 12 Volt power source

11
LENCO MARINE
Switch Wiring #15070-001 (123SC)
RETRACTOR WIRE
Orange wire must be connected to an ON/OFF
power source for the retractor feature to function.
Key switch or ON/OFF 12/24 Volt power source

12
Owner’s Manual
Switch Wiring #15071-001 (123DR)
RETRACTOR WIRE
Orange wire must be connected to an ON/OFF power
source for the retractor feature to function.
Key switch or ON/OFF 12/24 Volt power source

13
LENCO MARINE
Switch Wiring Double Rocker
# 10222-211 (122)
includes mounting screws for
Double Rocker Trim Tab Switch.
Use 1/8" drill bit for pilot holes.

14
Owner’s Manual
RetroFit Kit for Bennett Trim Tabs Installation Instructions
RetroFit Kit for Bennett Trim Tabs Installation Instructions
Pre-Installation Instructions
1) Disconnect the Bennett hydraulic pump
unit (HPU) from the Bennett wiring
harness and drain as much of the
hydraulic fluid as possible into a container
for proper disposal later. Remember
that automatic transmission fluid (ATF)
is to be disposed of only at an approved
collection site in your area; do not discard
in the regular trash. Discard hydraulic
pump unit (HPU). Leave Bennett wiring
harness in place.
2) Remove and discard the Bennett trim
tab cylinders from the boat transom
and remove the hydraulic line at the
connection. It helps to have several rags
handy to soak up the oil. Remove and
discard old hydraulic lines.
3) Disconnect the Bennett cylinder from the
trim tab plane by tapping out the small
black pin at the base of the cylinder where
it attaches to the plane. You will first have to
remove one screw from the lower mounting
bracket as this holds the pin in place.
Do not remove the lower mounting
bracket, as you will need it later.
Installation Instructions
1) Insert the actuator cable through the
appropriate hole in the upper mounting
bracket (supplied with the kit) until it
reaches the actuator. Insert the actuator
cable through the gland seal until it
reaches the upper mounting bracket.
Note: For appropriate orientation
of upper mounting bracket and gland
seal, (see Fig 1).
You will need to clean the mounting
surfaces on the transom with a cleaning
solvent such as mineral spirits or alcohol
to remove all oils and dirt before final
mounting.
Insert the actuator cable through the
transom. With the actuator loosely
supported, bed the upper mounting
bracket and screws with 3M 5200
adhesive caulking. Start the provided
#14 x 1-1/4" (3.18 cm) stainless steel
sheet metal screws through the upper
mounting bracket and into the transom.
MAKE SURE TO LEAVE THE SCREWS
ONLY PARTIALLY INSTALLED.
Insert the actuator clevis (mounting
ear) into the upper mounting bracket
and hold in the approximate installed
location. Pass the actuator cable through
the transom removing slack on the cable
until it looks like the installation on
Fig 2.1 on page 6.Remove the actuator
from the upper mounting bracket and
finish installing the previously started
#14 x 1-1/4" (3.18 cm) stainless steel
sheet metal screws through the upper
mounting
bracket and into the transom.
Lenco Marine’s RetroFit Kit is designed as a direct replacement for the Bennett hydraulic
power unit (HPU) on systems using Bennett's 4-ring standard trim tab actuators.
Note: Bennett Joystick Control can not be retrotted to the Lenco Actuators.
These instructions should be followed completely. See page 5 for complete Tools and
Materials List. If you experience any problems not covered, please call the Lenco Marine
Customer Service line at 772-288-2662.
Make sure the power is removed from the Bennett Trim Tab System before installation.
Fig. 1
(Continued on page 15)

LENCO MARINE
Optional Switches
15
We recommend using 3M 5200 adhesive
caulking to bed the upper mounting
bracket and screws.
DO NOT OVERTIGHTEN.
Attach the actuator to the upper mounting
bracket using the 1-1/2" Delrin Pin
provided.
2) You are now ready to attach the Lenco
Actuator to the blade. First insert the 1-1/4"
Delrin Pin part way through the hole in the
Bennett lower mounting bracket and insert
through one of the four black washers
provided in the kit. Place the actuator
into the bracket and tap the pin through.
Continue through the second washer
and other side of the bracket. Replace
the bracket screw removed in step 3 on
page 14. This will lock the pin in place and
prevent it from falling out.
3) Now you will need to hook up the Lenco
Actuator wires inside the bilge/rigging
area. First cut the wire connector from the
Bennett wire harness where the pump
used to be. Strip the four harness wires and
connect to the four Lenco wires using the
heat shrink butt splices provided in the kit.
Make sure to use the proper crimping tool
and then heat all connections for a tight
waterproof seal. Tie-wrap or secure in some
fashion to a dry location to help prevent the
connectors from getting too wet.
Wiring Instructions For
Connecting Lenco Actuator
Wires to Existing Bennett
Rocker Switch
1) Disconnect all wires from the
Bennett rocker switch. Remove
and discard all brass strips.
Reconnect the four wires from
the existing Bennett wire harness
to the back of the Bennett switch
as per the diagram to the right.
2) Now find a 12 volt negative at the
helm/ console. Connect this to
the 3’ black jumper wire with the
nonterminated end. Attach to screw
terminal on the back of the Bennett
switch as per the diagram to the right
(-12 Volt Black). Attach the orange,
black, yellow, red, green, and blue
short jumper wires to the back of the
Bennett switch as per the diagram
to the right. The 12 volt positive (+)
should already be at the switch
from the previous system. Simply
reconnect it as per the diagram to
the right.
3) Test the trim tabs for proper
operation. Remember that the right
switch controls the left trim tab
and the left controls the right. Bow
down should extend the tabs while
bow up should retract them. If for
some reason this does not work
as described in the above text then
recheck all the wiring for a misplaced
wire. If still not fully operational
refer to the trim tab trouble shooting
guide in the owners manual for
further instructions.
Please follow the instructions and
drawings carefully.
For further assistance please visit our
website at www.lencomarine.com, email
us at [e-mail], or call us at
772-288-2662
RetroFit Kit for Bennett Trim Tabs Installation Instructions
Lenco wire
feeds through
existing oil line
hole in transom
Lenco upper
mounting
bracket fits
existing Bennett
mounting holes
Existing
Bennett
lower
actuator
bracket
Existing
Bennett trim
tab plane and
hinge
Lenco
washers
(One on
each side
of actuator)

16
Owner’s Manual
RetroFit Kit for Bennett Trim Tabs Wiring Diagram
Electric RetroFit Kit for Bennett Trim Tabs
Installation Instructions Continued
3) Now you will need to hook up the Lenco Actuator wires inside the bilge/rigging area. First cut the wire connector from the Bennett wire harness where the pump used to be. Strip the four harness wires, cut the pins on the four Lenco actuator wires, and strip these four wires. Connect these wires as per the diagram below, using the heat shrink butt splices provided in the kit. Make sure to use the proper crimping tool and then heat all connections for a tight waterproof seal. Tie-wrap or secure in some fashion to a dry location to help prevent the connectors from getting too wet.
For further assistance please visit our website at www.lencomarine.com
Wiring Instructions For Connecting Lenco Actuator Wires to Existing Bennett Rocker Switch
1) Disconnect all wires from the Bennett
rocker switch. Remove and discard all brass strips. Reconnect the four wires from the existing Bennett wire harness to the back of the Bennett switch as per the diagram below.
2) Now find a 12 volt negative at the helm/ Connect this to the 3’ black jumper wire with the non- terminated end. Attach to screw terminal on the back of the Bennett switch as per the diagram below (-12 Volt Black). Attach the orange, black, yellow, red, green, and blue short jumper wires to the back of the Bennett switch as per the diagram below. The 12 volt positive (+) should already be at the switch from the previous system. Simply reconnect it as per the diagram below.
console.
3) Test the trim tabs for proper operation. that the right switch controls the left trim tab and the left controls the right. Bow down should extend the tabs while bow up should retract them. If for some reason this does not work as described in the above text then recheck all the wiring for a misplaced wire. If still not fully operational refer to the trim tab trouble shooting guide in the owners manual for further instructions.
Remember
Wiring Diagram for Bennett Rocker Switch
White Red
Blue Green Yellow
Black White Black
+ 12V
Orange
- 12V
Black
Top (Bow Down) Bottom (Bow Up)
Cut quick disconnect at pump and connect to Lenco actuator wires
Existing Bennett wire harness
Port Starboard

17
LENCO MARINE
Due to the many different variables involved with the
numerous applications for Lenco hatch lifts, installation
is never the same. Here are some general guidelines
that can be of assistance:
• The actuator is most powerful when it is installed
vertically at 90 degrees.
• Lifting capabilities decrease (due to the fact that the
force pounds increase) the closer the upper or lower
mount is located to the hinge.
• The further from a vertical position the less lifting
capability. When retracted, DO NOT position hatch
lift at an angle less than 45 degrees.
• Dual hatch lift systems are recommended for hatches
over 500 pounds (226.79 kg) of force.
• Lenco hatch lifts are designed around a ball screw
that spins freely when hatch is fully open or closed.
• The hatch lift must be allowed to free spin at both
ends of its stroke or it will continue to push or pull
against any resistance potentially damaging the
hatch lift or the hatch itself.
• Failure to make accurate measurements could cause
damage to hatch lift or the hatch itself.
• Lenco hatch lifts are waterproof and will not drift.
• Lenco hatch lifts are offered in both 12 and 24 volts.
Hatch Lifts — Installation/Operation
Lenco Hatch Lift Installation/Operation
OPERATION
The function of the Lenco Hatch Lift System is simple. Since the hatch lift is based
around a ball screw it is able to push a heavy load and remain at a constant position.
To raise a load, extend the hatch lift by pressing on the upper part of the switch. To
lower a load, retract the hatch lift by pressing the lower part of the switch.
In case of power failure, Lenco hatch lifts are supplied with two clevis pins at the
mounting brackets. To pull this pin out while the hatch is closed, you can: A) Rig a
cable to pin and rig to a point outside of the hatch. B) Install an inspection plate where
the pin will be accessible. C) Install Lenco's hatch lift slide bracket (Part # 70381-001).
This will allow you to pull the hatch open 4" (10.16 cm) in order to remove the bolt.
Raise
Hatch
Lower
Hatch
Wiring Single Rocker Switch #15096-001
Power
Ground
Single Rocker Switch for twin hatch lift application also available.
See page 18 for part #.
Hatch lift
S = Short. All part numbers ending in S have
the same stroke but in a 4" (10.16 cm) shorter
length.
12V Part L. O. A. Approx. L. O. A.
Number Retracted Stroke Extended
20760-001 15" 4" 19"
20764-001 20" 8" 28"
20766-001 24" 8" 32"
20768-001 24" 12" 36"
20770-001 29" 12" 41"
20774-001 29" 16" 45"
20776-001 33" 16" 49"
20778-001 33" 20" 53"
20780-001 37" 20" 57"
20782-001 37" 24" 61"
20784-001 41" 24" 65"

18
Owner’s Manual
1 Upper Mounting brackets #50014-001D (119)
2 Lower Mounting bracket #50014-001D (119)
3 Clevis pins #60101-001D (121SS)
4
Single rocker switch for single HL application #15096-001 (optional)
5
Single rocker switch for twin HL application #15098-001 (optional)
6 Shim - 7˚ #50015-002D (118S) (optional)
7 Slide bracket #70381-001 (HLSB) (optional)
SYSTEM PARTS
1. Follow the chart above to gure out
load on the hatch lift. Maximum load
is 500 lbs. (226.79 kg)
Y = Total length of hatch
X = Length from the hinge to the hatch
lift mounting point
W = Weight of the hatch to be lifted
2. Determine the angle of the hatch lift
mount. Do not exceed 45 degrees
from center.
3. Mount the hatch lift on the desired
location as per the above instructions.
Important: It may be necessary to
shim the upper or lower mounting
bracket up or down so the hatch does
not bind when fully closed. The hatch
lift does not stop pulling until it has
reached its fully closed position. If the
hatch fully closes before the hatch lift
is fully retracted, it will cause damage
to the lift or the mounting hardware.
Shim the hatch lift with stainless
washers for small amounts of length.
Use Lenco shim part #50015-002D for
lengths greater then 1/8" (3.2 mm).
4. Wire to switch according to the hatch
lift wiring diagram on page 17.
Lenco Hatch Lift Mounting
Hatch Lifts — Mounting/Parts
45
MAX
45
MAX
Hatchlift
YLength IN/CM
XLength IN/CM
WLBS/KG
YxW÷X=Force
S = Short. All part numbers ending in S have
the same stroke but in a 4" (10.16 cm) shorter
length.
12V Part L. O. A. Approx. L. O. A.
Number Retracted Stroke Extended
20760-001 15" 4" 19"
20764-001 20" 8" 28"
20766-001 24" 8" 32"
20768-001 24" 12" 36"
20770-001 29" 12" 41"
20774-001 29" 16" 45"
20776-001 33" 16" 49"
20778-001 33" 20" 53"
20780-001 37" 20" 57"
20782-001 37" 24" 61"
20784-001 41" 24" 65"

19
LENCO MARINE
Trim Tab Maintenance Tips
Trim Tab Maintenance Tips
CLEANING
The attractive surface appearance of stainless steel cannot be regarded as
completely maintenance-free. Our 304 Series Stainless Steel may in fact
stain, discolor, or accumulate a layer of surface contamination (dirt and
grime) during the normal course of the life cycle. Minute particles of dust
and rust may adhere to the stainless steel during shipping, installation, or
storage at OEM or retail locations. Also, please remember that some types
of stainless steel fasteners tend to “bleed” over the tabs and onto the boat.
To achieve maximum corrosion resistance, the surface of the stainless steel
must be kept clean and free of all of these contaminants.
NOTE: LENCO RECOMMENDS AN ACID AND WATER SOLUTION TO
CLEAN THE TRIM TAB BLADES. MARYKATE’S ON & OFF PRODUCT
IS A GOOD CHOICE. RINSE THOROUGHLY UPON COMPLETION.
BIODEGRADABLE, BUT PLEASE FOLLOW THE MANUFACTURER’S
INSTRUCTIONS BEFORE APPLYING.
PAINTING YOUR LENCO SS TRIM TABS and ACTUATORS
Painting your tabs and actuators with marine antifouling paint will
discourage marine algae or growth from adhering to these surfaces.
• Please follow the instructions supplied by your choice of marine paint
suppliers.
• When applying paint to the actuators, be sure that they are in the fully
retracted position. Do not paint the stainless steel ram above the area
that is exposed when retracted.
• Do not paint under the anode or the anode itself.
SACRIFICIAL ANODES FOR YOUR LENCO SS TRIM TABS
Be aware that stray currents in your marina or in a visiting marina can cause
damage to your trim tab blades if not protected by sacricial anodes.
• The addition of anodes on each tab will deter electrolysis.
• Do not paint under the anode or the anode itself.
• Check Anode condition frequently. Replace when necessary.
ELECTROLYSIS IS NOT A MANUFACTURING DEFECT AND IS NOT WARRANTABLE.
VISUAL INSPECTION OF SYSTEM
• Periodically inspect all wires, mounting brackets, and hardware for
damage.
• Make sure all mounting brackets and hardware are secure and
working properly.
• Periodically test system for smooth operation.