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Kubota BX1870 Workshop Manual

Kubota BX1870
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STEERING
BX1870,BX2370,BX2670,LA203A,LA243A,RCK48(P),RCK54(P),RCK60B,RCK60D,RCK54D, WSM
4-S8
[3] DISASSEMBLING AND ASSEMBLING
(1) Power Steering Cylinder
Adaptor and Tie-rod
1. Remove the cylinder hose adaptors (4), (6).
2. Remove the tie-rods (2), (8) from piston rod (7).
3. Remove the cylinder holder (1) and internal snap ring (3).
(When reassembling)
• Be sure to install the hose adaptors (4), (6) as shown figure left.
• After reassembling the tie-rod, be sure to adjust the toe-in. (See
page to 3-S4.)
9Y1210855STS0009US0
Steering Cylinder
1. Carefully clamp the cylinder in a vise.
2. Push one of the guide assembly (3) to inside of cylinder tube (2).
3. Drill a hole (2.5 mm dia., 0.098 in. dia.) on the cylinder tube (2)
just over the snap ring (4) as shown figure left.
4. Take a little screwdriver and lift off the snap ring (4) from its
groove. Simultaneousness support this action by pushing from
the outside of the cylinder tube with another little screwdriver or
another tool.
5. Push out the piston rod assembly (9) and take off the guide
assembly (3).
(When reassembling)
NOTE
• Seals must be exchanged after disassembling.
• Apply transmission fluid to the exchanged seals.
• Enter the piston rod and block the guide assemblies with
the snap rings.
9Y1210855STS0010US0
Tightening torque Tie-rod screw
74 to 84 N·m
7.5 to 8.6 kgf·m
55 to 62 lbf·ft
(1) Cylinder Holder
(2) Tie-rod RH
(3) Internal Snap Ring
(4) Hose Adaptor RH
(5) Cylinder
(6) Hose Adaptor LH
(7) Piston Rod
(8) Tie-rod LH
A: 0.26 rad (15 °)
B: Front
(1) Piston Rod
(2) Cylinder Tube
(3) Guide Assembly
(4) Snap Ring
(5) Guide
(6) Seal Ring
(7) Wiper Ring
(8) O-ring
(9) Piston Rod Assembly
(10) Center Piston
A: Drill a Hole
B: 5.25 mm (0.207 in.)
KiSC issued 02, 2017 A

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Kubota BX1870 Specifications

General IconGeneral
Engine TypeDiesel
Engine Power18 hp
TransmissionHydrostatic
Fuel Capacity6.6 gallons
Wheelbase55.1 inches
TypeSub-Compact Utility Tractor
EngineKubota D722
PTO Power13.5 hp
Number of Cylinders3
CoolingLiquid
Drive4WD
Drive Type4WD
Width44.5 inches
Hydraulic System TypeOpen center
PTO Speed540 RPM
Displacement0.719 L
Fuel Tank Capacity6.6 gallons
GearsInfinite (2-range) forward and reverse
Front Tire Size18x8.5-10
Rear Tire Size26x12-12

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