Kubota B3030 Workshop Manual

ELECTRICAL SYSTEM
B1830,B2230,B2530,B3030, WSM
9-M8
[2] WITH OPC
B1830, B2230, B2530, B3030 tractor equipped Operator Presence Control (OPC) system. This system will
automatically stop the engine when operator stands up from the seat while shifting the independent PTO lever (or
PTO ON-OFF lever), the PTO select lever (with MID PTO), the HST pedal (or shuttle shift lever) and the parking brake
lever.
This system is controlled by switches (the independent PTO lever switch (or PTO ON-OFF lever switch), the seat
switch, the PTO select lever switch (with MID PTO), the HST pedal switch (or shuttle shift lever switch) and the
parking brake switch) and controller.
Engine starting is operated by starter motor after current flowing from the controller to the start motor.
Engine stopping is operated by the key stop solenoid after current flowing from controller through the key stop
solenoid relay to the key stop solenoid.
9Y1210003ELM0003US0
(1) Relay (AC1)
(2) Key Stop Solenoid Relay
(3) Key Stop Solenoid
(4) Relay
(5) Glow Plug
(6) Alternator
(7) Starter
(8) Battery
(9) Slow Blow Fuse
(10) Seat Switch
(11) OPC Controller
(12) Main Switch
(13) PTO Clutch Lever Switch
(14) HST Pedal Switch
(15) PTO Select Lever Switch
(16) Parking Brake Switch
(17) Glow Lamp
(18) Charge Lamp
(19) Fuse
KiSC issued 05, 2012 A

Kubota B3030 Specifications

General

Engine Type	Diesel
Cylinders	3
Fuel Type	Diesel
Fuel Capacity	8.7 gallons
Drive	4WD
Hydraulic System Type	Open center
3-Point Hitch Category	Category I
Engine Power	30 hp
Transmission Type	Hydrostatic
Displacement	91.5 cu in
Number of Gears	3 ranges (HST)
Tire Size (Rear)	12.4-16
PTO Power	24 hp