wsm B2420 Workshop Manual page 278

B2420, WSM
Operator Presence Control (OPC) System
(1) Battery
(2) Slow Blow Fuse
(3) Glow Plug
(4) Main Switch
B2420 is configured with an "Operator Presence Control (OPC)" system to control engine starting automatically
stopping.
This OPC system mainly consists of controller and engine starting / stopping control switches such as the main
gear shift switch, the seat switch, the rear PTO switch and the parking brake switch.
Main parts regarding OPC system are laid out as shown in the electrical circuit.
(5) Rear PTO Switch
(6) Parking Brake Switch
(7) Seat Switch
(8) Main Gear Shift Lever Switch
(9) Relay
(10) Starter Motor
(11) OPC Controller
(12) Charge Lamp
9-M5
ELECTRICAL SYSTEM
(13) Key Stop Solenoid Relay
(14) Key Stop Solenoid
(15) Alternator
9Y1210436ELM0024US0
KiSC issued 06, 2012 A