Invacare Pronto M91 Service Manual

SECTION 8—WHEELS
Part No. 1125038 87 Pronto
®
M91™and M94™
Replacing the 2-Piece Wheel Rim and/or the Foam
Filled or Pneumatic Tires
NOTE:Forthisprocedure,refertoFIGURE 8.7.
NOTE:Whenreplacingthe2‐piecewheelrim,DONOTremovetire.Replacement2‐piecewheel
rimsareshippedassembledwithanewtire.RefertoRemoving/InstallingtheDriveWheelon
page 84toremovetheexistingdrivewheelandinstallthenew2‐piecewheelrimandtire.
 WARNING
When replacing the hub of a pneumatic tire, ALWAYS deflate tire before
removing/installing hub - otherwise, injury or damage may occur. Failure to observe
this warning can result in sudden, violent rim separation and possible injury.
1. Removedrivewheelfromwheelchair.RefertoRemoving/InstallingtheDriveWheel
onpage 84.
2. Deflateexistingpneumatictire.
3. Removethefiveexistingmountingscrewsthatsecuretheexistingouterrimandinner
rim.
4. Separatethetwohalvesoftherimandremovetheexistingtire.Discardexistingtire.
NOTE:WheninstallingtheNEWpneumatictire,ifnecessary,placetheinnertubeintothetire.
NOTE:Wheninstallingtheouterrimintoa
pneumatictire,ensurethevalvestemofthe
innertubeprotrudesthroughthestemopening
intheouterrim.
5. Inserttheouterrimandinnerriminto
thenew/existingtire.
6. Usingthefiveexistingmounting
screwssecuretheouterrimtotheinner
rimandhub.Torquemountingscrews
to160‐200in‐lbs.
7. Ifpneumatic,filltiretocorrectair
pressureasnotedontiresidewall.
8. Reinstallthedrivewheelontothe
wheelchair.RefertoRemoving/
InstallingtheDriveWheelonpage 84.
FIGURE 8.7 Replacing the 2-Piece Wheel
Rim and/or the Foam Filled or Pneumatic
Tires
Inner Rim
Outer
Rim
Tire
Mounting
Screws

Invacare Pronto M91 Specifications

Power and Performance

maximum speed	6.5 mph / 4.5 mph
incline capability	9˚
weight capacity	300 lb. (400 lb. option)

Wheel and Caster Sizes

front casters	6" x 2"
drive wheels	14" x 3"
rear casters	6" x 2"

Weight and Dimensions

length with footboard up	39"
length with footboard down	40" - 42"
width excluding joystick	25.9"
height	37" - 48"
seat width	18" - 22"
seat depth	16" - 20"
overall height	37" - 40"
back height	18"
seat-to-floor height	21" - 23"
weight with batteries	273 lb.
weight without batteries	199 lb.
wheelchair mass	275 lb.
turning radius front	19.5"
turning radius rear	21.5"
ground clearance	3.25"