ISRI Elite High Back Seat

ep3 dm 7.03

Note: The seat should only be adjusted when the vehicle is parked.

The seat is designed to hold a maximum weight of 330 lb.

The ISRI Elite seat has ten different features; the controls are shown in Fig. .

  1. Backrest Tilt

  2. Heat/Ventilation

  3. Back/Side Support

  4. Height Adjustment

  5. Isolator Adjustment

  6. Fore/Aft Isolator

  7. Seat Extension

  8. Fore/Aft Slide

  9. Seat Tilt Lever

Fig. 1, ISRI Elite High Back Seat

  1. Backrest Tilt: Pull the handle out completely and lean back or forwards to adjust the backrest tilt. Release the handle when the correct position is achieved. The backrest has a 52 degree range of movement.
    When adjusted, the backrest inclination should allow the driver to reach the steering wheel with angled arms.

    2. Notice: Do not install seat covers on seats with heating and ventilation. Do not cover the seat with blankets, clothing, or pillows. Blocking the air flow through the cushions can cause the seat to overheat and damage the seat.

    Do not run the seat heating or ventilation when the seat is unoccupied.

  2. Heat/Ventilation: There are three heat or ventilation settings available, as shown in Fig. . Toggle the rear button to adjust the level of seat heating or ventilation.
    Heat: To turn on the heat, push the top of the forward switch, as shown in Fig. . The red light next to the switch will illuminate.
    A sensor located in the seat controls the temperature and will turn the heat off when the desired temperature is reached. Body size and clothing can affect how quickly the seat achieves the set temperature.
    Ventilation: To turn on the ventilation, push the bottom of the forward switch, as shown in Fig. . The blue light next to the switch will illuminate.
    Two fans will draw cabin air into the seats to reduce perspiration. Ventilation should not be run continuously.
    To turn off the heat and ventilation, move the switch to the middle position; both lights will be off.

    1. Ventilation On

    2. Heat/Ventilation Off

    3. Heat On

    4. On/Off Switch

    5. Settings Switch

    Fig. 2, ISRI Elite Seat Heat/Ventilation Controls

  3. Back and Side Support: There are three switches that control the back and side support areas of the seat. Making changes to a driver's sitting position from time to time helps prevent driver fatigue and improves posture.
    1. Lumbar (Lower) Back Support: Press the forward button to inflate the cushion, highlighted in Fig. , to increase support at the lower back. This moves the driver's spine into a double S shape and decreases pressure on the spine.

      Fig. 3, Lower Back Support

    2. Upper Back Support: Press the central button to inflate the cushion, highlighted in Fig. , to increase support at the mid-back region. This can help prevent the driver from sitting in a slouched, hunched, or hollow-back position.

      Fig. 4, Upper Back Support

    3. Side Support: Inflate the side bolster's shown in Fig. , to help prevent driving in slouched position and from sliding across the backrest.

      Fig. 5, Side Support

  4. Height Adjustment: Pull or push the handle to adjust the seat height.
    Adjust the seat so the driver's feet can move each pedal through its full range of motion without fully stretching out the driver's legs or using force.
  5. Damper Adjustment: Move the lever down to increase damping on rough roads, or up to decrease damping on flat roads.
    The damper protects the driver's spine by absorbing vertical vibrations and shocks. It should be adjusted down far enough that the driver's feet never lose contact with the pedals. In general, heavier drivers won't have to adjust the lever up.
  6. Fore/Aft Isolator: Rotate the isolator lever to the left to lock the isolator, or to the right to allow horizontal movement.
    Damping horizontal shocks can be helpful with driving off-road or pulling a tank trailer.
  7. Seat Extension: Pull the lever to move the seat cushion forwards or back. The cushion moves up to 2-3/8 inches (60 mm) in 3/8-inch (10-mm) increments. Releasing the lever locks the cushion in place.
    Adjust the length of the seat cushion until there is space for three fingers between the cushion's front edge and the back the driver's knee. This helps to help improve circulation in the lower legs.
  8. Fore/Aft Slide: Pull the lever to unlock the seat and slide it forward or back. Release the lever to lock the seat in position.
    Adjust the seat so that reaching and pressing the pedals requires no effort and all dashboard controls are within easy reach.
  9. Seat Tilt: Pull the lever and add or reduce weight on the front area of the seat cushion to move it into one of three positions. Release the lever to lock the seat into position.
    The tilt of the seat, along with the tilt of the backrest and the contour of the seat cushion, affects the amount of pressure placed on the underside of the thighs and the back.
  10. Armrest Tilt: To adjust the armrest angle, tilt the armrest to the highest position, then down to the lowest position, then to the desired position.
    The armrest should be at an angle where the elbows lay lightly on it; this helps to relax the muscles in the shoulder and neck.
Note:
Parent topic: Seats and Restraints
Document Number: 0000087450
Manual Publication Date: 2024-03-21
Topic Publication Date: 2025-02-13