Vehicle Access and Features Bottom Cushion Front Height Lumbar Support To adjust the height of the front of the bottom cushion, lift the handle and pull forward or push back to the de- sired setting. Push the rocker switch on the side of the seat up to inflate lumbar support. Push the rocker switch down to deflate lumbar support. Lumbar Support Back-of-Cushion Height Turn the knob for precise fit. To adjust the height at the back of the cushion, rotate the lever to the desired setting. National Cush-N-Aire II Seat (Fig. 2.6) Back Cushion Tilt Isolator, Optional Also called a Chugger-Snubber , the isolator is locked out by moving the handle down.
To tilt the back cushion, turn the knob and lean forward or backward. Height Adjustment National Easy-Aire Seat (Fig. 2.7) Back Cushion Tilt To raise the seat, push the rocker switch on the side of the seat up until the seat reaches the desired height. To lower the seat, push the rocker switch down until the seat reaches the desired height. To tilt the back cushion, turn the knob and lean forward or backward. Fore and Aft Seat Adjustment Height Adjustment Move the lever to the left and slide the seat forward or backward to the desired position. To raise the seat, push the pump handle down and con- tinue pumping until the seat reaches the desired height.
To lower the seat, depress the handle and hold until the seat reaches the desired height. Bottom Cushion Front Height To adjust the height of the front of the bottom cushion, lift the handle, and pull forward or push back to the de- sired setting. Fore and Aft Seat Adjustment Move the lever to the right and slide the seat forward or backward to the desired position. 2.7