Invacare Pronto M91 Service Manual

SECTION 12—ELECTRONICS
Part No. 1125038 119 Pronto
®
M91™and M94™
Replacing the NX-80, NK5-EX, MK
5
or MK6i Controller
 WARNING
DO NOT attempt to perform this procedure with any power supplied to the wheel
chair. The joystick and batteries MUST be disconnected prior to beginning to
remove the MK
5
-EX controller module. Otherwise, equipment damage and/or per-
sonal injury may occur.
NOTE:Forthisprocedure,refertoFIGURE 12.7onpage120.
NOTE:MK
5
ControllersareNX‐80,NX‐75orEX.MK6iControllerisMK690.
NOTE:TherearefourcablesconnectedtotheControllerModule.Thesecablesmustbe
disconnectedbeforethecontrollercanberemoved.
NOTE:Takenoteofpositionandorientationofthecontroller,cables,connectorsandmounting
hardwareforreinstallationofcontroller.
1. Removetheseat.RefertoRemoving/InstallingorTiltingtheSeatAssemblyon
page 35.
2. Removethebatteriesfromthewheelchair.RefertoInstalling/RemovingtheBatteries
onpage 103.
3. Removethefrontshroud.RefertoRemoving/InstallingtheShroudsonpage 88.
4. Removethetie‐wrapssecuringthejoystickcabletothewheelchairframe.
5. Removethetwomountingboltssecuringthecontrollerbrackettothewheelchair
frame.(Detail“B”ofFIGURE 12.7).
6. Laythecontrollerandcontrollerbracketdowninthebatterytrayanddisconnectthe
following:
A. Therightandleftmotorleads.
B. Controller
chargercable.
C. Controllerbatterycable.
7. Frominsidethewheelchairframe,removethetwomountingscrewssecurethe
existingcontrollertothewheelchairframe(Detail“B”ofFIGURE 12.7).
8. Removetheexistingcontrollerfromwheelchairframe.
9. ReverseSTEPS1‐8toinstallnewcontroller.

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"