AHT HTK-750ST/AL Installer Manual

Tail lift with underrun beam

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Office:

Hauptplatz 23

Tel. (43) 2142 64260

ALUHEBETECHNIK

Fax. (43) 2142 6434

Gesellschaft mbH

INSTALLER'S MANUAL

HTK-500ST/AL

HTK-750ST/AL

Factory:

Bahnstraße 34

(43) 2142 64360

(43) 2142 64366

FOR THE "AHT"

TAIL LIFT

with underrun beam

Gattendorf, May 2007

A-2474 Gattendorf

E-Mail:

office@aht-mhw.com

HTK-500ST/M

HTK-750ST/M

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Summary of Contents for AHT HTK-750ST/AL

Page 1 Bahnstraße 34 A-2474 Gattendorf Tel. (43) 2142 64260 (43) 2142 64360 E-Mail: ALUHEBETECHNIK Fax. (43) 2142 6434 (43) 2142 64366 office@aht-mhw.com Gesellschaft mbH INSTALLER’S MANUAL FOR THE “AHT” TAIL LIFT HTK-500ST/AL HTK-500ST/M HTK-750ST/AL HTK-750ST/M with underrun beam Gattendorf, May 2007...
Page 2 SERVICE QUALIFICATIONS TO INSTALL THE TAILGATE LOADER The installer should be well trained in the proper procedure for installing the AHT before beginning the installation. Carefully read the manual before starting to install the AHT tailgate loader. Only mature adults, age 18 and above, should install the AHT tailgate loader.
Page 3 UNPACKING THE TAILGATE LOADER A complete unit will be shipped on one pallet consisting of two main units: (1) Platform (2) Main frame with lifting arms, cylinders, power pack,mounting brackets, 2 button-remote-control and installation manual. Mounting Bracket Pallet Main Frame Power Pack Platform Lifting Arms...
Page 4: Preparing For Installation
PREPARING FOR INSTALLATION Remove rear lights, bumper, tool box and spare wheel, if necessary. Disconnect the battery cable to prevent damage to the battery while welding. Subframe Tie-down Remove any obstruction attached to the frame of the vehicle that would interfere with the installation. The mounting brackets will cover the mainframe and subframe.
Page 5: Installation Instructions
INSTALLATION INSTRUCTIONS Installing the Mounting Device - Fixing the mounting device Center the mounting device on the truck body floor. Both mounting devices must make a contact with the truck floor end. Clamp both mounting devices on the truck body floor. - Platform Preparation Before you can install the main frame you have to remove the 2 pins, the spring and the tube from the platform.
Page 6 INSTALLATION INSTRUCTIONS Position the tailgate unit - Position the main frame - Install the mounting brackets on the main frame, but do not fix it. - Place the main frame under the vehicle with lift arms attached using a floor jack, and raise main frame to its approximate final position.
Page 7 INSTALLATION INSTRUCTIONS Position the tailgate unit - Install mounting brackets - Place the mounting brackets to its exact final position. - Clamp the mounting brackets on the truck frame. Mounting Bracket Truck Main Frame Screw Clamp Check the right-angled - Fix the mounting brackets on the main frame. - Drill 16mm (5/8”) holes into the chassis and mounting bracket.
Page 8 INSTALLATION INSTRUCTIONS Energize the power pack CAUTION: REMOVE TRANSPORT FILLER CAP AND INSERT DIPSTICK: (There is no air hole in filler cap and the pump or reservoir will be destroyed) Be sure the vehicle and the liftgate are of the same current (12V or 24V). Fuse is in the power pack.
Page 9 INSTALLATION INSTRUCTIONS Correct wiring of the Power Pack NOTE: All battery power leads must have a core area not less than 16mm² and be double insulated. Connect both battery cables (+ and -) directly from the battery to the power pack. ATTENTION: By fixing the battery cable on the starter switch, you must hold up the lock nut.
Page 10 INSTALLATION INSTRUCTIONS Installing the platform - Remove mounting device Press the “UP”-Button to energize the hydraulic system until the pins for the mounting devices moves slightly. Remove pins between mounting device and lift arm. Remove screw clamps and mounting devices. - Installing the platform Press the “DOWN”-Button and push the hoisting unit manually downward...
Page 11 INSTALLATION INSTRUCTIONS Installing the platform Place the joint plate to the platform bearing (1) (on left side) Install the pin (lift arm - platform) from inside at the platform bearing. (2) (on left side) Move the pin only up to the joint plate. (3) Place the joint plate to the platform bearing (1) (on right side) Install the pin (lift arm - platform) from inside at the platform bearing.
Page 12 INSTALLATION INSTRUCTIONS Installing the platform Install the torsion spring (only on right side) Put one end of the spring in the bearing of the joint plate and the other end in the bearing of the platform. Move the pin (lift arm - platform) to its final position and install the locking screw. Install the tube (only on left side) Move the pin (lift arm - platform) to its final position and install the locking screw.
Page 13 INSTALLATION INSTRUCTIONS Installing the platform Now lift up the lever arm on the right side and the platform closing cylinder on the left side to the joint plate. Lift up the lever arms to the joint plate Install the pin on the right side (lever arm - joint plate) and secure it. joint plate pin (lever arm - joint plate) lever arm...
Page 14 INSTALLATION INSTRUCTIONS Remove tilting lock The platform installation is now complete. Open the platform. Remove Tilting Lock The tilting lock prevents the automatic leveling from working until the installation is complete. It is the last thing to remove. Tilting lock Remove the screw M6x70 on both sides.
Page 15 INSTALLATION INSTRUCTIONS How to adjust the platform level - Lower the platform to ground level. (Do not tilt the platform to ground) Adjusting screw M16 - Loosen the locking nut. (on both sides) Joint plate Locking nut - Turn the adjusting screw clockwise for lower the platform tip (on both sides) - Turn the adjusting screw anti clockwise for...
Page 16 INSTALLATION INSTRUCTIONS Installing the platform lock - Installing the platform lock Be sure the platform is in its uppermost position (at vehicle bed level) and closed. Weld or bolt the lock hook to the vehicle body. Platform Lock hook Platform lock...
Page 33 ELECTRIC AND HYDRAULIC DIAGRAM with mechanical hose burst valve with 2-Button-Remote-Control with 2-Button-Hand-Control...
Page 34 Tailgate Schematics (HTK-500ST/AL) Tailgate Specification (HTK-500ST/AL) Centre of Mass (HTK-500ST/AL) Basic dimensions (HTK-750ST/M) Tailgate Schematics (HTK-750ST/M) Tailgate Specification (HTK-750ST/M) Centre of Mass (HK-750ST/M) Basic dimensions (HTK-750ST/AL) Tailgate Schematics (HTK-750ST/AL) Tailgate Specification (HTK-750ST/AL) Centre of Mass (HTK-750ST/AL) Electric and hydraulic diagram...

This manual is also suitable for:

Htk-500st/m Htk-500st/al Htk-750st/m