Invacare Pronto M91 Service Manual

SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING
Part No. 1125038 31 Pronto® M91™and M94™
Battery
Battery Charger
SYMPTOM PROBABLE CAUSE SOLUTIONS
Batteries won’t
charge.
Blown battery fuse or damaged cables.
Batteries sat discharged too long.
Check cables for damage or replace battery wiring
harness.
Replace batteries
Short Charge Time
One or both batteries may be bad
(if batteries charge up to soon).
Check each battery and replace if needed.
No power to
wheelchair motors.
Bad connection or blown fuse. Check
Joystick connection.
Batteries are dead.
Check all connections and housings for damage. If
you have a blown fuse, a new battery wiring
harness must be purchased.
Check battery voltage and replace if necessary.
Loose battery connections Check battery cable connections, may have
vibrated loose when driving on rough terrain.
Corroded battery
wiring connections.
Possible water, salt, or urine
damage.
Replace battery wiring harness.
E14 Error code. Low Voltage Recharge or replace battery.
SYMPTOM PROBABLE CAUSE SOLUTIONS
No LED’s on
Charger
Charger not plugged into outlet, or
disconnected from wiring harness on
wheelchair.
Make sure the charger is plugged into the outlet
and check the wiring on the wheelchair.
No AC power at outlet. Check for AC power with digital volt meter.
Damaged power cord. Check for damage on the power cord, replace if
damaged or send in for repair.
Charger LED’s burnt out. Send charger to Invacare for repair.
Charger may have internal fuse that is
blown.
Remove charger cover and check for fuses. if fuses
are present Ohm out fuses and replace if
necessary.
Batteries won’t
charge.
Blown battery fuse in wiring harness,
or charger.
Check battery wiring harness fuse on the
wheelchair
Check fuse in the charger.
Charger not plugged into outlet. Make sure charger is plugged into the outlet.
No AC power at the outlet. Check for AC power with a digital volt meter.
Charger power cord may be
damaged, or the connector may be
damaged.
Check for damage and replace if necessary, or
send in for repair.
Charger may have internal damage. Charge batteries with known good charger.
Battery voltage too low for charger to
start charging cycle.
Replace batteries.

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"