Section 3.Systems Overview

Alternative LEARN

Alternative LEARN

When FlashWare is not available, learning pots and changing battery voltage can be done using the LPH and Performance Reduction (Turtle) buttons on the truck steering column.

NOTE : In this procedure, the LPH button can be considered an ENTER button and the performance Reduction (Turtle) button can be considered a TOGGLE button to change selections.

Six selections are available with this procedure: Ld (Learn drive), LL (Learn lift), Learn Right Steer position*, Learn Left Steer position*, Learn Center Steer position*, which are indicated by the steer position LEDs, and Lb (Learn battery).

*Applies to dual traction motor trucks only.

Read and understand this procedure thoroughly. Values can be mislearned and the lift truck can move if these procedures are not performed correctly.

If, while learning the traction pot, the parking brake is not set or the directional control is not in neutral, the truck will travel.

While learning the lift pot, the carriage will lift. Make sure there are no overhead obstructions.

With the key switch ON, sitting in the seat, parking brake engaged, and the travel directional lever in neutral, do the following:

Enter Learn Mode

1.Press the LPH and Turtle buttons at the same time and release.

2.Press the Turtle button and release.

3.Press the LPH and Turtle buttons at the same time again and release.

4.Press the LPH button once and release.

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Model 4700 Maintenance Manual

5.Press the LPH and Turtle buttons at the same time again and release. A flashing “n” should be displayed and the Battery Charge Indicator LEDs will flash.

6.Press the Turtle button and release. A flashing “y” should be displayed and the Battery Charge Indicator LEDs will flash.

7.Press the LPH button and release. (Learn mode is now accessed.) “Ld” should now be flashing on the display. Press the Turtle button to toggle between selections.

Model 4700 with Software Lower than V2.9

1.Press the LPH and Turtle buttons at the same time and release.

2.Press the Turtle button and release.

3.Press the LPH button once and release. A flashing “n” should be displayed and the Battery Charge Indicator LEDs will flash.

4.Press the Turtle button and release. A flashing “y” should be displayed and the Battery Charge Indicator LEDs will flash.

5.Press the LPH button and release. (Learn mode is now accessed.) “Ld” should now be flashing on the display. Press the Turtle button to toggle between selections.

Learn the Traction Potentiometer

The parking brake must be engaged and the travel directional lever must be in neutral or the truck will travel.

1.While in Learn mode with “Ld” flashing (Ld= Learn drive), press and release the LPH button. A solid “Ld” should be displayed and the Battery Charge Indicator LEDs will flash.

2.Depress and hold the traction forward pedal (on dual pedal trucks) or traction pedal (on single pedal trucks).

Publication 1160093, Issued: 20 May 2013

3.Press and release the LPH button to store the value. A solid “Ld” should be displayed and the Battery Charge Indicator LEDs should be on solid as well, indicating the new learned value has been stored. Release the pedal.

4.Press and release the LPH button to exit. A flashing “Ld” should be displayed.

5.If another selection is to be learned, toggle the Turtle button until the desired selection is displayed. If no other selections are to be learned, toggle the Turtle button until the truck exits Learn mode and performs SelfTest. Cycle the key switch after exiting Learn Mode.

Learn the Lift Potentiometer

NOTE : This procedure applies to trucks equipped with Lever Controls only.

1.While in Learn mode, toggle the Turtle button until “LL” is flashing (LL = Learn lift).

2.Press and release the LPH button. A solid “LL” should be displayed and the Battery Charge Indicator LEDs will flash.

NOTE : The carriage will lift when the next step is performed. Make sure there are no overhead obstructions.

3.Pull the lift lever to the maximum lift position.

4.Press and release the LPH button to store the value (as soon as LPH is pressed, the lift lever can be released). A solid “LL” should be displayed and the Battery Charge Indicator LEDs should be on solid as well, indicating the new learned value has been stored.

5.Press and release the LPH button to exit. A flashing “LL” should be displayed.

6.If another selection is to be learned, toggle the Turtle button until the desired selection is displayed. If no other selections are to be learned, toggle the Turtle button until the truck exits Learn mode and performs SelfTest. Cycle the key switch after exiting Learn Mode.

Learn the Steer Potentiometer

This procedure applies to dual traction motor trucks only.

NOTE : When learning the steer pot, the right, left, and center steer positions must be learned.

1.Enter Learn mode. Toggle the Turtle button until the right steer position LED flashes.

NOTE : The LED that is flashing is the position that is going to be learned. For example: If the right LED is flashing, you must learn the right steer position with the wheel turned all the way to the right, and so on.

2.Press and release the LPH button to select Learn for the right steer position. The right steer direction LED will be on solid and the Battery Charge Indicator LEDs will flash.

3.Depress the brake pedal to start the hydraulic pump and allow steering.

4.Steer to the right fully and hold.

5.Press and release the LPH button to store the value. The right steer direction LED and the Battery Charge Indicator LEDs should be on solid.

6.Press and release the LPH button to exit. The right steer direction LED should now flash and the Battery Charge Indicator LEDs should go out.

7.Toggle the Turtle button until the left steering LED is flashing.

8.Press and release the LPH button to select Learn for the left steer position. The left steer direction LED will be on solid and the Battery Charge Indicator LEDs will flash.

9.Depress the brake pedal to start the hydraulic pump and allow steering.

10.Steer to the left fully and hold.

11.Press and release the LPH button to store the value. The left steer direction LED and the Battery Charge Indicator LEDs should be on solid.

12.Press and release the LPH button to exit. The left steer direction LED should now