Invacare Pronto M91 Service Manual

SECTION 9—SHROUDS/FRAME
Part No. 1125038 93 Pronto
®
M91™and M94™
ii. Remov ethemotorrackfromthew alkingbeam.
•RemovingtheSwingArm‐
i. Remov ethe longshoulderscrewandlocknutsecuringtheswingarmtothe
wheelchairframe.
ii. Remov etheswingarmfromthewheelchairframe.
Installing
1. P erformone ofthefollowing:
• Installingth eStabilityLockAssembly ONLY‐
i. Ensurecompressionspringispositionedinthemiddleholeofthemotorrack.
ii. Alignthemotorrackunderthewalkingbeam (Detail“A ” ofFIGURE 9.3).
iii. Usingtw oshoulderscrewsandonewasher,securethemotorracktoth ewalking
beam.
• Installingth eSwingArm‐
i. Alignswingarmwithwheelchairframe.
ii. Insertlongshoulderscrewthroughswingarmandwheelchairframeandsecure
usingalocknut.Securelytighten.
2. Alignpivotlinkfrontmountingholewithwheelchairframemountinghole.
3. Usingthefrontmountingscrew,twonylonwashers,O‐ring,cuppedwasherandlocknut,
securethepiv otlinktothewheelchairframe.
4. Usingtheshoulderscrewandlocknut,securethepivotlinktotheswingarmmounting
hole.
5. Alignthepiv otrackfromthepiv otlink.
6. Usingtwomountingscrewssecurethepiv otracktothepiv otlink.
7. Usingthewalkingbeammountingscrew,washerandnut, securethewalkingbeam
assembly,tors ionspringandspringspacertotheframe.
CAUTION
Use extreme caution when installing the torsion spring onto the lock plate pin -
otherwise, injury may result.
8. Useascrewdriv ertoprythetorsionspringopen(Detail“B”ofFIGURE 9.3).
9. Installthelockplate.Releasethetorsionspringontothepinonthelockplate(Detail“B”
ofFIGURE 9.3).
10. Placethe extensionspringontothespringmountontheswingarm.
CAUTION
Use caution when installing the extension spring onto the pivot plate spring mount -
otherwise, injury may result.

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"