Jacobsen ZB Series, Safety, Operation And Maintenance Manual

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7 ADJUSTMENTS
7.9.4 ARMREST (OPTION) ______________________________________________________
The armrests can be folded up if required and the height individually adjusted.
To adjust the armrests for height, separate the round cap (see arrow) from the
cover, loosen the hexagon nut (size 13mm) and adjust the armrest to the
desired position and tighten the nut again.
7.9.5 BACKREST ADJUSTMENT (OPTION) _______________________________________
The backrest extension can be individually adjusted for height by pulling it
upwards over the various increments up to the end stop.
To remove the backrest extension, pull it over the end stop.
7.9.6 LUMBER SUPPORT (OPTION) ______________________________________________
By turning the adjustment knob (arrow) to the left or right, both the height and
curvature of the backrest cushion can be individually adjusted.
This increases both the seating comfort and the performance of the driver.
7.9.7 BACKREST ADJUSTMENT (OPTION) _______________________________________
The backrest is adjusted using the locking lever (arrow).
• The locking lever must latch into the desired position. It should not be
possible to move the backrest into another position when it is locked.