Invacare Pronto M91 Service Manual

SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING
Pronto® M91™and M94™ 28 Part No. 1125038
MPJ+, PSR+, PSF+ Joysticks or Displays
SYMPTOM PROBABLE CAUSE SOLUTIONS
 SPM L Park Brake Fault or
 SPM R Park Brake Fault displays
and wheelchair does not drive.
Motor lock levers disengaged
(Error code E9 or E10).
Engage motor lock levers.
CHARGER PLUGGED IN displays. Battery charger connected
(Error code E28).
Unplug battery charger from the
wheelchair.
 SPM Battery Fault displays and
the wheelchair does not drive.
Batteries need to be charged
(Error code E14).
Charge batteries. If batteries fail to
charge properly, check battery charger
or replace batteries. Refer to
Replacing the On-Board Battery
Charger on page 109.
 JOYSTICK TIMEOUT displays
and the wheelchair does not drive.
Joystick or input device is
disconnected (Error code 32).
Turn Off power, reconnect the
joystick of input device and turn
power On.
 JS REV TOO LARGE
 JS FWD TOO LARGE
 JS LFT TOO LARGE or
 JS RGT TOO LARGE
displays and the wheelchair does not
drive.
The joystick or input device is
sending a value outside of the
reverse, forward, left or right
limits (Error codes E01, E02,
E03 or E04).
Replace joystick or input device.
NEUTRAL TESTING displays. The joystick neutral test has
failed (Error code E18).
Release the joystick and try to get the
joystick back into the center-most
position.
 BAD JOYSTICK CAL VALUES
displays and the wheelchair does not
drive.
The joystick calibration values
are outside of the expected
range (Error code E19).
Recalibrate the joystick (joystick
throw procedure).
 SPM NOT CONNECTED
The MPJ or Display module is
not communicating with the
control module (Error code
E200).
Check the connections between the
joystick or display and the controller.
Turn the power Off and then back On.
Replace the controller if necessary.
 SPM Communications Fault
displays and the wheelchair drives
slowly.
The controller has determined
a fault during a previous turn-
off process (Error code E41).
Turn the wheelchair Off and back On.
ATTENDANT ACTIVE and
displays.
The Proportional or Digital
Attendant control is active and
can be used to drive the chair
(Error code W05).
This is normal behavior.
Batteries draw excessive current
when charging.
Battery failure.
Electrical malfunction.
Have batteries checked for shorted
cell. Replace if necessary.
Contact Dealer/Invacare for service.

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"