FULLY HYDRAULIC ACTUATED TRACK GAUGE ADJUSTMENT

(Only for machine type VH)

Modification Of Undercarriage Width

Caution

If necessary, loosen and remove the mechanic locking in end position of the width modification device on the undercarriage.

Only perform the track gauge adjustment on flat and solid ground and without travelling during adjustment.

The adjustment of the undercarriage width is controlled by the left travel pedal 5 when the button S104 (fig. 25) is kept depressed at the same time (control light inside the button must be on)

Pushing the left pedal forward (fig. 26, 5a) causes the side frames to move in (reduction of undercarriage width, fig. 27)

Pushing the left pedal backward (fig. 26, 5b) causes the side frames to move out (increase of undercarriage width)

Should a side frame not move in or out, so the travel movement must be actuated briefly foreword and backward on the same side (actuate travel pedal while button S104 is released)

Caution

Always modify the track gauge so to bring both side frames to the same end position, either fully in or out. Operating or travelling the machine with the side frames in intermediate position is not allowed.

Lubrication Of The Coulisses

Check the gliding surfaces on the coulisses (fig. 28, pos. S) at each modification of the undercarriage width.

After a working time with the side frames in extended position the gliding surfaces S must be cleaned from any dirt or dust and then coated with grease before the side frames are retracted.

After extension of the side frames, and before starting to work with the excavator, check the condition of the gliding surfaces S, as necessary clean and coat them with grease

Grease quality: employ the grease recommended in this manual for the lubrication of working attachment of the excavator.