Take a look at firefly GOTO seat

Firefly

Product Care

Annual Product Inspections

The correct function of the mobility base and seating system should be checked before every use. The table of checks listed below are to be carried out by the user at the intervals shown. Failure to carry out these checks may lead to problems arising that could invalidate the warranty.

Should any defects become apparent, please contact an authorised dealer. It is also recommended that your mobility base is serviced every 12 months by an authorised dealer.
 
 
Adjustable Brake Force for 12” wheel
To adjust the friction brake, please refer to Fig 19a and 19b. By reducing the distance between the wheel lock friction post (A) and the wheel, braking force is increased. In order to adjust the brake, loosen the nuts (B), allowing the wheel lock to slide. The wheel lock should be adjusted so that when the wheel lock is not activated, the distance between the wheel lock friction post (A) and the tyre is 10mm. After adjustment ighten the nuts (B). Ensure the wheels lock when the brake is activated after adjustment. Ensure the locking/braking forces of both wheels are adjusted equally.
 
  
 
Adjustable Brake force for 22” and 24” wheel
To adjust the drum braking force, please refer to Fig 20. The braking force can be adjusted using the adjustment screw (A). By unscrewing the adjustment screw, braking force will be increased and vice-versa. With the wheel rotating freely the adjustment screw should be unscrewed until you can hear the noise of the wheel being braked. Next screw in the adjustment screw until the friction noise disappears. The wheel should run freely. After adjustment tighten the locking nut (B) against the post (C). When tightening the locking nut (B), ensure that the adjustment screw (A) doesn’t rotate. Ensure the wheels lock only when the retaining claw (Fig 10, item C) of the hand brake lever is in the 2nd or 3rd ratchet position. Ensure the locking/braking forces of both wheels are adjusted equally.