User Guide

The pre-load on the cable within the flexible cable assembly is preset at the factory. However, over

time the cable may stretch slightly causing a change in performance. The pre-load adjustment block

allows the user to make corrections to the pre-load due to cable stretch. If this happens, turn the

pre-load plug clockwise to readjust the hex shaft to the 1/8" (3.2 mm) to 3/8" (9.5 mm) pre-load

setting range. Do not exceed the 3/8" (9.5 mm) pre-load limit as damage to the unit may result.

The pre-load adjustment block can compensate for approximately 1.5cc’s of hydraulic fluid volume.

However, only a small portion of this volume should ever need to be used. In addition, the pre-load

typically needs to be adjusted just once during the early operation of the unit, and depending on use,

may never be required.

Pre-load adjustment block

(view from underneath)

Pre-load adjustment plug

Follow these steps to make the adjustment

1. Turn power off and detach power cord.

2. Turn unit over.

3. Use slotted screwdriver to turn plug clockwise.

4. Turn until the actuator extends to the 1/8" pre-load dimension, as shown in the figure below.

1/8" (3.2 mm) to 3/8" (9.5 mm) pre-load dimension

Pre-Load

Adjustment