Taco Marine GS-850 Datasheet

GS-850 & GS-950 Mounts
INSTALLATION INSTRUCTION GUIDE
TACO Marine® Grand Slam Mounts
®

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2 / GS-850 & GS-950 MOUNTS
Grand Slam 850 mount
(for both the GS-850 and GS-950)
• Always use good quality stainless steel
hardware when mounting the base.
• Please do not attempt to weld the base
to anything.
• It is also important that your Canvas
T-Top, Arch or Hardtop, be suitably
constructed to provide a strong
mounting surface area.
Kit Contents
GS-850/GS-950
Handy Tips
1•SAFETY GLASSES
•DRILL & SCREW GUN
•MASKING TAPE & PENCIL
•1/4" DRILL BIT
•THREE 1/4-20 FLAT HEAD SCREWS
(LENGTH= (THICKNESS OF TOP) + 7/8”)
•THREE 1/4-20 LOCKING NUTS
•MARINE-GRADE SEALANT
•MARINE-GRADE GREASE / ANTI-SEIZE
•3A FUSE IN THE MAIN +12 VDC POWER FEED
•GS-950 ONLY - 3A FUSE FOR LIGHT
•FLATHEAD SCREWDRIVER
•18-GAUGE WIRE FOR GS-850 & GS-950
•TON-OFF-ON DPDT SWITCH UP/DOWN
OPERATION 850 & GS-950
•THREE-POSITION SWITCH (OFF/ON/ON) FOR
THE GS-950 ONLY
Required,
but not included
®
Tube, light and 6" lead for
12-volt DC power supply for
light function (GS-950 only)
1
Drill template
1

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GS-850/GS-950
• The three (3) vinyl spacers will help prevent
any hardtop compression. When installing
through a hardtop, make sure the top is
foam or core filled. It is recommended to
use included spacers to fit inside where the
mounting bolts pass through to ensure that
when the bolts are tightened the top is not
compressed.
• Position the mount with the antenna or light
attached so that it will not interfere with
other hardware on the top.
• Route electrical cables to boat’s control
panel and attach wires per manufacturer’s
recommendations.
• Before installing VHF Antenna or LED Light
Tube, apply a thin layer of marine grease or
anti-sieze to the threaded shaft.
Thank you for purchasing the Grand Slam 850 VHF Antenna Mount or Grand Slam
950 Masthead Anchor Light by TACO Marine. Since 1959, we have taken great pride in
oering the highest-quality products with excellent customer service. We stand behind
our products 100 percent. Please visit our website tacomarine.com for more detailed
information on a wide variety of products and to register your new accessory for warranty.
1. Use the drill template to mark and drill with a 1/4" bit the three bolt holes.
2. If your top requires spacers, trim the included vinyl spacers to the depth of your
hardtop thickness. Insert the vinyl spacers into each bolt hole.
3. Place a bead of marine-grade sealant on the underside of the mounting plate. This
helps prevent water intrusion.
4. Securely bolt the base to the mounting surface. Be careful not to deform the top.
5. Connect wire according to Figures 1, 2 and 3 on page 6.
6. Use a 3A fuse in the main +12 VDC power feed.
7. Ensure the Black wire has a good connection to battery ground.
8. Operate the unit in both directions. The unit will automatically stop at full-up and lay-
down positions.
• Horizontal adjustment is possible to 80° angle. See diagram A.
• The GS-850 features two set screws – one to lock the antenna positioning in place,
the other for adjustment.
NOTE: TACO recommends adjusting the angle slowly, every quarter turn. Over-
adjusting could destroy the sensor, which voids the warranty.
9. Connect wire antenna according to manufacturer's instructions.
GS-850 MOUNT INSTALLATION
FOR ANTENNA

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4 / GS-850 & GS-950 MOUNTS
1. Use the drill template to mark and drill with a 1/4" bit the three bolt holes.
2. If your top requires spacers, trim the included vinyl spacers to the depth of your
hardtop thickness. Insert the vinyl spacers into each bolt hole.
3. Place a bead of marine-grade sealant on the underside of the mounting plate. This
helps prevent water intrusion.
4. Securely bolt the base to the mounting surface. Be careful not to deform the top.
5. Connect wire according to Figures 1, 2 and 3 on page 6.
6. Use a 3A fuse in the main +12 VDC power feed (not included).
7. Use a 3A fuse for the light (not included).
8. Ensure the Black wire has a good connection to battery ground.
9. Operate the unit in both directions. The unit will automatically stop at full-up and lay-
down positions.
• Horizontal adjustment is possible to 80° angle. See diagram A.
• The GS-950 features two set screws – one to lock the light positioning in place, the
other for adjustment.
GS-950 MOUNT INSTALLATION
FOR MASTHEAD ANCHOR LIGHT
Note: There are 2 set screws in the
hole. The outer screws locks the
magnetic set screw in place.
Upper Adjustment Set Screw. Lower Adjustment Set Screw.
Note: There are 2 set screws in the
hole. The outer screws locks the
magnetic set screw in place.
Lower Sensor
Upper Sensor
Adjustments to the arm position need to be done
slowly 1/4 turn at a time. It is best practice to use
an amp meter to determine when the sensor switch
disables motor power. Failure to do this could result
in motor failure.
GS-850 adjustments
Friday, February 12, 2021 3:59:36 PM
NOTE: TACO recommends
adjusting the angle slowly,
every quarter turn. Over-
adjusting could destroy
the sensor, which voids the
warranty.
10. Screw down the bottom of
the light tube assembly to
the mount.
NOTE: Before installing the
LED Light Tube, apply a thin
layer of marine grease or
anti-sieze to the threaded
shaft.
DIAGRAM A

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NOTE: For instructions and to replace the Grand Slam 950 Masthead Anchor
Light, purchase a replacement [F38-9000BLY] at tacomarine.com.
LIGHT
The light assembly is composed of two parts – one (1) Lamp
Assembly and one (1) Stanchion.
EMERGENCY RELEASE OPERATION
Using a standard flathead screwdriver, remove the set screw (A) located on the side
of the GS-850 and GS-950 base while holding the Antenna or Masthead Anchor Light
shaft, being careful not to let the shaft fall. Once the screw is removed, gently lift up on
the shaft and reposition the Antenna or Masthead Anchor Light. Once repositioning is
complete, gently push back in the shaft until the screw holes are aligned and re-screw
in the screw with the screwdriver, making sure not to over tighten and strip the threads.
Repeat this process whenever manual override is necessary.
1. Thread the LED light tube to the GS-850 mounting base.
Note: Apply a thin layer of marine-grade grease or anti-seize to the threads before
installing.
2. Noting the sticker that reads “TO BOW” on the light, position the light properly.
3. Attach your 18-Gauge, 3-wire cable coming from the helm to the 18-Gauge, 3-wire lead
out of the GS-950 stanchion/tube assembly (refer to figure 4 on page 8).
4. Connect your chosen switch (not included) per manufacturer’s recommendations.
5. Mount the switch to your chosen location at the helm.
(A) Set Screw

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6 / GS-850 & GS-950 MOUNTS
When boating with the Grand Slam 850 or Grand Slam 950, easily adjust the top-moun-
ted VHF Antennas or Masthead Anchor Light with the simple push of a button. Once
either accessory is mounted to the top and wired into the control panel, lift or des-
cend the accessories by pressing the up or down buttons. When either acces-
sory has reached its full upright or down position, the motor will stop automatically.
How to use
How to clean
Mild dish washing liquid, specialty marine cleaners:
Sea Safe Boat Wash, Boat Wash Concentrate
and Super Suds.
Safe marine lubricants:
CRC Corrosion Inhibitor, Corrosion Block
and Get Some Extreme.
Bleach (Clorox, etc.) and mild abrasive cleaners:
Ajax, Comet, Soft Scrub, Rubbing Compounds, etc.
Strong cleaners:
409, Engine Degreasers, etc.
Acids of any type:
Such as Muriatic, naval jelly or aluminum acid.
Always use a mild, non-abrasive soap and lots of fresh water. Thoroughly wash the
aluminum with a soft towel or sponge utilizing lots of soap and water to remove
all dried salt crystals and other contaminants. Rinse completely with direct water
pressure.
Safe Cleaners Harmful Cleaners

GS-850 & GS-950 MOUNTS / 7
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WIRING DIAGRAMS

8 / GS-850 & GS-950 MOUNTS TACO Marine® | tacomarine.com | [e-mail]
Bow
Stern
Port
Starboard
Blinds are
to the rear
of centerline
C
L
Black
Ground
Red
Stern
Light
Red
Bow
Light
Red Bow
Light
Red Stern
Light
Black
Ground
MASTHEAD ANCHOR LIGHT (FIGURE 4)
WIRING DIAGRAMS

GS-850 & GS-950 MOUNTS / 9
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PRODUCT DIMENSIONS
40 1
2
"
41
4
"
TRUE
21
4
"
GS-950
UP POSITION
1
4
"
43"
GS-950
DOWN
POSITION
GS-850
UP POSITION
GS-850
DOWN POSITION
8 3
8
"
13
4
"
4 1
4
"

Please print at 100 percent for accurate sizing. Slight scaling
may still occur. Therefore, before drilling, it is recommended
that all template dimensions be measured for accuracy.
3.40 B.C
3 X .25 THRU
111.5°
137°
1.00
.
.
3
3
7
7
5
5
”
”
01” 2”
3.40 B.C
3 X .25 THRU
111.5°
137°
1.00
..337755””
01” 2”
10 / GS-850 & GS-950 MOUNTS TACO Marine® | tacomarine.com | [e-mail]
GS-850/GS-950
Drill Template