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SECTION 2

BEFORE INSTALLING THE AUTO TAB CONTROL, YOU MUST 

CHECK THE TRIM TAB SYSTEM INSTALLATION

The ATC system interfaces with the boat’s trim tab system, and automatically 

operates the trim tab Hydraulic Power Unit (HPU). Therefore before you install 

and operate the ATC system it is critical you confirm that the HPU wiring and 

 

hydraulic tubing is connected EXACTLY as described in items 1 and 2 below.

1. Hydraulic Tubing:

Tubing from the port actuator must be connected to the fitting marked    

• 

  “P” (front left) on the HPU.

Tubing from the starboard actuator must be connected to the fitting  

 

• 

  marked “S” (front right) on the HPU.

 

THE TUBING MUST 

NOT

 BE REVERSED

2. Helm Control Wiring:

Verify that the four-color wire harness leading to  

the back of the trim tab helm control is wired as follows.

For Single Lever and Rocker Switch Controls

Notice the indented letters on the back of the control,  

make sure connections are as follows:

•  Red wire connects to “R”

•  Green wire connects to “G”

•  Blue wire connects to “B”

•  Yellow wire connects to “Y”

For Racing Type Control

Facing the control, with the word BOW at the top, 

turn the control over to the right (or left) and 

inspect the control to ensure the wiring is  

connected as follows: 

•  The blue wire is connected to the top two terminals

•  The red wire is connected to the two left terminals

•  The yellow wire is connected to the two bottom     

   terminals

•  The green wire is connected to the two right             

   terminals

 THE WIRING CONNECTIONS MUST 

NOT

 BE REVERSED

Single Lever Control

Rocker Switch Control

BLUE

POSITIVE

GREEN

YELLOW

RED

Racing Type Control

3

This pdf was downloaded from 

MarineSupplyDock.com

Summary of Contents for AUTO TAB CONTROL

Page 1: ...T This manual contains critical information directly affecting the safe and efficient operation of your boat Please read thoroughly before operating the Auto Tab Control system SAVE AND KEEP WITH BOAT...

Page 2: ...OFF and set the Zero Point for your boat s best running attitude The up and down arrows will flash showing trim tab adjust ments B ATC Control Unit The ATC Control Unit is a sophisticated processor a...

Page 3: ...harness leading to the back of the trim tab helm control is wired as follows For Single Lever and Rocker Switch Controls Notice the indented letters on the back of the control make sure connections ar...

Page 4: ...G THE AUTO TAB CONTROL FOR THE FIRST TIME How to Set the Zero Point IMPORTANT NOTE The ATC won t turn on or function correctly until you ve set the Zero Point If the Zero Point has not been set the bl...

Page 5: ...the brightness of the ATC LEDs using the Sun and Moon buttons for different times of day or night These buttons are also used for setting the Zero Point Optimal Running Attitude A good way to reveal y...

Page 6: ...EACTIVATE IT BY EITHER 1 PRESSING THE ATC KEYPAD S ON OFF BUTTON Recommended method 2 PRESSING ANY POSITION OF THE TRIM TAB HELM CONTROL OR 3 CUTTING THE POWER SOURCE TO THE ATC SYSTEM SECTION 5 SAFET...

Page 7: ...ightly higher 3 All LEDs on the ATC Keypad flash simultaneously Control Unit signal is interrupted Check Keypad cable for breaks and check firmness of connection into ATC Control Unit 4 SET ZERO light...

Page 8: ...at is free of excessive vibration Dry Environment Mount the Control Unit in a dry location Level Surface Mount the Control Unit on a relatively level surface It is not necessary to mount the Control U...

Page 9: ...ail Connect the orange wire to a 12 volt positive power source that is switched on with the ignition Connect the black wire to ground Do not plug the ATC Power Pigtail into the Control Unit yet Step 4...

Page 10: ...nnector coming out of the Relay Module Attach the black wire of the Relay Module Power Connectors to ground or to the ground stud on the back of the HPU motor and the orange wire with the in line 20 a...

Page 11: ...re Harness to the desired length and strip the wire ends Strip approximately 3 16ths of an inch on each wire Crimp the butt splices on the Pigtail for Wire Harness PT109 onto the Wire Harness matching...

Page 12: ...t RM12 or RM24 8 ATC Hardware Bag AC3200 System Schematic and Parts List for Non Electronic Trim Tab Controls Wire Harness Existing Control Existing Hydraulic Power Unit Existing 7 6 5 Optional Upper...

Page 13: ...Unit Existing Description Part 1 ATC Keypad AC3250 2 ATC 6 Keypad Cable AC32506 3 ATC Control Unit AC3400 4 ATC Power Pigtail AC3121 5 Pigtail for Wire Harness PT109 6 25 Wire Harness WH100025 7 ATC...

Page 14: ...on of the Bennett Auto Tab Control please contact us at Bennett Marine Inc 550 Jim Moran Blvd Deerfield Beach FL 33442 Phone 954 427 1400 Email info BennettTrimTabs com Web www BennettTrimTabs com 14...

Page 15: ...15 7 3 02817 1 7 03 7 This pdf was downloaded from MarineSupplyDock com...

Page 16: ...ATC20 P ATC X This pdf was downloaded from MarineSupplyDock com...

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