FORD 2001 E-450 - Manual (Page 166)

3. Disconnect the primary battery
ground cable.
4. Disconnect the primary battery
positive cable.
Connect:
Secondary positive cable remains energized after disconnection.
make sure the tool does not contact any ground surface.
1. Reconnect the primary battery
positive cable.
2. Reconnect the primary battery
ground cable.
3. Unwrap the secondary positive
cable and reconnect to the primary
battery terminal.
WINDSHIELD WIPER BLADES
Check the wiper blades at least twice a year or when they seem less
effective. Substances such as tree sap and some hot wax treatments used
by commercial car washes reduce the effectiveness of wiper blades.
Maintenance and care
166