Jacobsen ZA5 Series Safety, Operation And Maintenance Manual page 72

7 ADJUSTMENTS
7.8 AIR SUSPENSION SEAT (GRAMMER MSG75 -521) ________________________
7.8.1 WEIGHT ADJUSTMENT ___________________________________________________
To adjust the seat for the driver weight, pull or press the lever for the seat weight adjustment with the driver on the
seat.
When the arrow is in the center clear area of the view window, the driver
weight is adjusted correctly.
Within this view area, you adjust the specified height of the driver to its
minimum spring movement.
When you reach the minimum/maximum weight, you hear the adjustment
reach the upper or lower end stop.
Adjust the setting for each driver weight before the vehicle can be driven safely.
To prevent damage to the compressor during the weight adjustment, the compressor must be operated for less
than 1 minute.
7.8.2 FRONT AND BACK ADJUSTMENT __________________________________________
To release the front and rear adjustment lift the locking lever.
WARNING! Risk of accident!
Do not operate the locking lever when you drive.
WARNING! Risk of injury!
Operate the lever at the grip section, do not reach below the lever.
After the adjustment, the locking lever must lock into the correct position with
an audible click. The seat will not move into another position with the lever
locked.
Do not lift the locking lever with your upper or lower leg.
7.8.3 BACKREST EXTENSION ___________________________________________________
To adjust the backrest extension for each driver, move the extension to the correct lock position.
To remove the backrest extension, move the extension over the end stop.
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