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CONTENTS

1. WIRING DIAGRAM..................................................................................................................... 9-M1

[1] ROPS MODEL (EXCEPT FOR B3150)................................................................................ 9-M1

[2] B3150 ROPS ........................................................................................................................ 9-M2

[3] CABIN MODEL ..................................................................................................................... 9-M3

2. ENGINE STARTING SYSTEM AND STOPPING SYSTEM ....................................................... 9-M4

[1] OPC SYSTEM CIRCUIT ...................................................................................................... 9-M4

[2] CONTROLLER ..................................................................................................................... 9-M5

[3] SAFETY SWITCH .............................................................................................................. 9-M10

(1) PTO Select Lever Switch (Only Model With Mid PTO)................................................. 9-M11

(2) PTO Clutch Lever Switch ............................................................................................. 9-M12

(3) HST Pedal Switch (HST Model) ................................................................................... 9-M12

(4) Shuttle Shift Lever Switch (Manual Transmission Model) ............................................ 9-M13

(5) Seat Switch................................................................................................................... 9-M13

(6) Parking Brake Switch ................................................................................................... 9-M13

[4] STARTER........................................................................................................................... 9-M14

[5] KEY STOP SOLENOID ...................................................................................................... 9-M14

[6] GLOW PLUG...................................................................................................................... 9-M15

3. CHARGING SYSTEM............................................................................................................... 9-M16

[1] ALTERNATOR ................................................................................................................... 9-M17

[2] IC REGULATOR................................................................................................................. 9-M18

4. LIGHTING SYSTEM ................................................................................................................. 9-M19

[1] HEAD LIGHT ...................................................................................................................... 9-M19

[2] TURN SIGNAL LIGHT........................................................................................................ 9-M21

[3] HAZARD LIGHT ................................................................................................................. 9-M23

[4] BEACON ............................................................................................................................ 9-M25

[5] BRAKE LIGHT.................................................................................................................... 9-M27

[6] WORK LIGHT (CABIN MODEL ONLY).............................................................................. 9-M28

[7] TRAILER SOCKET............................................................................................................. 9-M29

5. INSTRUMENT PANEL ............................................................................................................. 9-M30

[1] EASY CHECKER™............................................................................................................ 9-M30

[2] GAUGES AND OTHER INDICATORS ............................................................................... 9-M31

[3] ERROR CODE DISPLAY (CABIN MODEL ONLY) ............................................................ 9-M33

[4] SWITCHES AND SENSORS ............................................................................................. 9-M33

MECHANISM

KiSC issued 03, 2014 A

Kubota WSM B2050 User Manual

Questions and Answers: