Kubota B1620 Workshop Manual

HYDRAULIC SYSTEM
B1220, B1620, B1820, WSM
8-S14
(EU)
Lowering Speed Adjusting Valve
1. Remove the lowering speed adjusting valve body (2) with the
lowering speed adjusting shaft (1).
2. Draw out the poppet (3) and the spring (4).
(When reassembling)
• Take care not to damage the O-rings.
9Y1210272HYS0021US0
(4) Hydraulic Control Valve
Spool
1. Remove the spool (1).
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Relief Valve
1. Remove the adjusting plug (1), spring (2) and poppet (3).
(When reassembling)
• Recutting the threads of adjusting plug and control valve inner
thread.
• After adjusting the pressure, be sure to stake the adjusting plug
and control valve body.
9Y1210272HYS0023US0
(1) Lowering Speed Adjusting Shaft
(2) Lowering Speed Adjusting Valve
Body
(3) Poppet
(4) Spring
(1) Spool (2) Valve Body
(1) Adjusting Plug
(2) Spring
(3) Poppet
(4) Valve Body
KiSC issued 07, 2011 A

Kubota B1620 Specifications

General

Engine Type	Diesel
Cylinders	3
Fuel Type	Diesel
Hydraulic System Type	Open center
Drive	4WD
3-Point Hitch Category	Category I