Pump Replacement; Battery Replacement - Kärcher PS 4/7 BP Operating Instructions Manual

Maintenance
Only qualified maintenance personnel are to perform the following repairs.
Seul le personnel de maintenance qualifiés sont à effectuer les réparations suivantes.

Pump Replacement

1. Turn off all switches and unplug the machine.
2. Open spray gun valve until spray stops.
3. Place rag over spray tip and remove spray tip.
4. Remove side covers.
5. Disconnect wires from battery.
6. Disconnect pump wires from switch.
7. Remove solution hoses from fittings in pump.
8. Remove the two screws that hold the pump onto the frame.
9. Reverse process to install new pump.
10. Check for leaks before installing side covers.

Battery Replacement

The battery should last for many years, depending on use. In the event that the battery needs replaced, please
follow the steps below. Use best electrical practices while performing battery replacement.
1. Turn machine off.
2. Set machine on its side.
3. Remove two screws from battery access panel in bottom of machine.
4. Remove battery access panel and set aside.
5. Remove battery from machine.
6. Disconnect connectors from battery.
7. Dispose of old battery properly.
8. Connect new battery to connectors on wires. Be sure to connect the black wire connector to the negative
battery terminal.
9. Install new battery in machine.
10. Replace battery access panel and screws.
11. Set machine back upright.
12. Turn machine on to test function.
13. Charge battery to test function.
14 86390170 - KARCHER PS 4/7 BP