Battery - Invacare Pronto M50 Service Manual

SYMPTOM
Heavy load on the motors forcing
controller into the current rollback
mode.
Blown fuse in battery wiring
harness.
Damaged motor.
Motor is running
then fails to restart
when stopped.
Controller power stage board or
relays may be damaged.
Controller senses heavy load and
has entered the current rollback
Motor runs but
mode.
loses power.
Batteries are going bad.
Bad Connection on wheelchair.
Wheelchair loses
all power while
driving.

Battery

SYMPTOM
Blown battery fuse or damaged cables.
Batteries won't
Batteries sat discharged too long.
charge.
One or both batteries may be bad (if
Short Charge Time batteries charge up to soon).
Part No. 1125075
SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING
PROBABLE CAUSE
PROBABLE CAUSE
27
SOLUTIONS
Leave power On and allow controller to count
down, and recharge the batteries overnight with
power On.
Replace battery wiring harness. Refer to
Connecting/Disconnecting Battery Cables on
page 101.
Replace brushes if necessary, or replace
motor/gearbox if internal damage is determined.
Refer to Replacing Motor Brushes on page 116 or
Removing/Installing the Motor on page 112.
Ohm out motor to check for possible internal
damage (worn out brushes may be possible).
Refer to Motor Testing on page 31 or Replacing
Motor Brushes on page 116.
Replace controller or send to Invacare for repair.
Refer to Replacing the Controller on page 125.
Stop driving and let electronics cool.
Replace batteries. Refer to Removing/Installing
Batteries from/into Battery Tray on page 99.
Turn power "Off", wait 10 seconds and turn
power back "On".
Check joystick connection.
Check battery connection and fuses.
SOLUTIONS
Check cables for damage or replace battery wiring
harness. Refer to Connecting/Disconnecting
Battery Cables on page 101.
Replace batteries. Refer to Removing/Installing
Batteries from/into Battery Tray on page 99.
Check each battery and replace if needed. Refer to
Removing/Installing Batteries from/into Battery
Tray on page 99.
Pronto® Series