Backrest; Seat - Invacare COASTLITE Owner's Manual

Backrest

The backrest height can be adjusted. The backrest canes are mounted into the wheel-
chair side frames by the securing screws for the armrest pivot as Fig 29 shows.
To adjust the height support the lower chair frame and remove the rear drive wheels.
Loosen the nylock nuts and remove, unscrew the securing bolts and remove the armrest
completely. Repeat for both sides. The backrest cane is predrilled for adjustment.
Choose your new height and replace the armrest mountings and drive wheels. Ensure
that all nuts and bolts are tight.

Seat

This chair features seat upholstery that can be tensioned. Whilst there should be no
adjustment necessary upon delivery of your new chair, over time stretch could occur.
To re-tension the upholstery you must firstly remove all the locating screws and
washers from the chair seat rail on the side where the adjusting hook and pile is located.
Slide out the aluminum pinch strip and adjust the hook and pile to increase the
upholstery tension. Replace the pinch strip and using a punch or a similar tool, inset the
tip through the pinch strip and into a center rivnut. Lever the upholstery into position
and secure a locating screws. If abnormal pressure is required to align the locating
screws then remove the upholstery and readjust the hook and pile. Repeat this
operation until all the locating screws are in position. See Fig 22
Fig 22
Invacare Coastlite Manual Wheelchair Owner's Manual – page 12. May 2003