Kubota BX1870 Workshop Manual

ENGINE
BX1870,BX2370,BX2670,LA203A,LA243A,RCK48(P),RCK54(P),RCK60B,RCK60D,RCK54D, WSM
1-S68
(7) Relief Valve Spring
Relief Valve
1. Remove the oil filter base.
2. Check the relief valve for dirt, and the seat and ball for damage.
3. If damaged, replace.
4. Check the free length of spring.
5. If less than the allowable limit, replace.
9Y1210855ENS0008US0
Relief valve spring
Factory specification
32 mm
1.26 in.
Allowable limit
28 mm
1.10 in.
Tightening torque Joint
40 to 49 N·m
4.0 to 5.0 kgf·m
29 to 36 lbf·ft
(1) Relief Valve
(2) Joint
(3) Spring
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