Invacare Pronto M50 Service Manual page 110

SECTION 11—BATTERIES
first before replacing the battery charger for improper operation. Refer to Replacing the On-Board
Battery Charger Fuse on page 108.
1. Remove the top shroud. Refer to Removing/Installing the Top Shroud on page 87.
2. Remove the rear battery from the wheelchair. Refer to Removing/Installing Batteries
from/into Battery Tray on page 99.
3. Disconnect the battery charger connector (Detail "B") from the controller connector
(not shown).
NOTE: The battery charger is secured to the frame with two hook and loop strips (Detail "B").
4. Remove the four tie-wraps securing the battery charger connector cable to the
wheelchair frame (Detail "A").
5. Remove the two screws and locknuts securing the battery charger plug to the bracket
(Detail "B").
6. Pull existing charger away from wheelchair frame to release the hook and loop strips
and remove the existing charger from the wheelchair frame (Detail "B").
7. Remove the hook and loop strips from the underside of the existing charger.
8. Install the hook and loop strips onto the underside of the new charger.
9. Place the new battery charger against the wheelchair frame, ensuring that the hook
and loop strips properly engage.
10. Secure the battery charger plug to the bracket using the two screws and locknuts.
Torque to 75 in-lbs.
11. Route the battery charger connector cable to the right side (from the rear of the
wheelchair) of the battery charger body (Detail "B").
12. Connect the battery charger connector (Detail "B") to the controller connector .
13. Using four tie-wraps, secure the charger cable to the wheelchair frame (Detail "A").
14. Install the rear battery. Refer to Removing/Installing Batteries from/into Battery Tray
on page 99.
15. Install the top shroud. Refer to Removing/Installing the Top Shroud on page 87.
16. Test the on-board charger for proper operation by performing the following steps:
A. Connect the battery charger to an outlet.
B. Locate pins 1 and 2 in the joystick charger port at the front of the joystick housing
(Detail "C").
C. Use a digital multimeter to check the voltage at pins 1 and 2.
NOTE: Voltage should start to increase after 30 seconds. This indicates that the batteries are
being charged.
Pronto® Series
110
Part No. 1125075