Kubota BX1870 Workshop Manual

HYDRAULIC SYSTEM
BX1870,BX2370,BX2670,LA203A,LA243A,RCK48(P),RCK54(P),RCK60B,RCK60D,RCK54D, WSM
5-M6
4. FLOW PRIORITY VALVE
The flow priority valve is a flow divider that divides single hydraulic source (hydraulic pump) to actuates two
circuits simultaneously.
This valve feeds fixedly controlled flow (8.0 L/min., 2.1 U.S.gals/min., 1.8 Imp.gals/min.) to the PF port with priority
and excessive flow to the EF port.
9Y1210855HYM0007US0
(1) Hydraulic Pump Gear
(2) Hydraulic Pump Case
(3) Plug
(4) Flow Priority Valve
(5) Relief Valve
EF: EF Port (To 3 Point Hitch
Control Circuit)
PF: PF Port
(To Power Steering, PTO
Clutch and HST Circuit)
P: Pump Port (Suction)
T: Tank Port
KiSC issued 02, 2017 A

Kubota BX1870 Specifications

General

Engine Type	Diesel
Engine Power	18 hp
Transmission	Hydrostatic
Fuel Capacity	6.6 gallons
Wheelbase	55.1 inches
Type	Sub-Compact Utility Tractor
Engine	Kubota D722
PTO Power	13.5 hp
Number of Cylinders	3
Cooling	Liquid
Drive	4WD
Drive Type	4WD
Width	44.5 inches
Hydraulic System Type	Open center
PTO Speed	540 RPM
Displacement	0.719 L
Fuel Tank Capacity	6.6 gallons
Gears	Infinite (2-range) forward and reverse
Front Tire Size	18x8.5-10
Rear Tire Size	26x12-12