Kubota BX1870 Workshop Manual

HYDRAULIC SYSTEM
BX1870,BX2370,BX2670,LA203A,LA243A,RCK48(P),RCK54(P),RCK60B,RCK60D,RCK54D, WSM
5-S19
(2) Hydraulic Cylinder
Hydraulic Cylinder Bore
1. Check the cylinder internal surface for scoring or damage.
2. Measure the cylinder I.D. with a cylinder gauge.
3. If the measurement exceeds the allowable limit, replace the
hydraulic cylinder block.
9Y1210855HYS0024US0
Hydraulic Arm Shaft Bushing
1. Visually inspect the DX bushings for signs of wear or damage.
(The DX bushing tends to show concentrated wear.)
2. If the DX bushing is worn beyond the alloy thickness "A",
replace it.
(Reference)
9Y1210855HYS0025US0
Cylinder I.D.
Factory specification
80.05 to 80.15 mm
3.152 to 3.155 in.
Allowable limit
80.20 mm
3.157 in.
Hydraulic arm shaft
bushing
Alloy thickness "A"
0.57 mm
0.022 in.
Hydraulic arm shaft O.D.
Factory
specifica-
tion
LH
31.925 to 31.950 mm
1.2569 to 1.2578 in.
RH
29.925 to 29.950 mm
1.1782 to 1.1791 in.
A: Alloy Thickness L: Outside Diameter
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