Kubota U25-3 Repair Manual

U20-3, U25-3 WSM Hydraulic system (Service section)
IV-S-141
2) Installing the selector valve
[2] Pilot filter
(1) Tightening torque for installation of valve
48.1~55.9 N⋅m (4.9~5.7 kgf⋅m)
(2) Tightening torque of adaptor
G3/8: 49.0~53.9 N⋅m (5.0~5.5 kgf⋅m)
G1/4: 24.5~29.4 N⋅m (2.5~3.0 kgf⋅m)
(1) Tightening torque for installation of filter:
9.8~11.3 N⋅m (1.0~1.15 kgf⋅m)
(2) Tightening torque of adaptor:
G1/2: 58.8~63.7 N⋅m (6.0~6.5 kgf⋅m)
(3) Tightening torque of hydraulic hose:
G3/8: 49.0~53.9 N⋅m (5.0~5.5 kgf⋅m)
Return pipe
P/V right P
P/V left P
Should not touch
Travel lock
cylinder
R/J travel two-speed
Tape color: White
C/V communicating
valve
Travel M brake
release
Line filter
Accumulator
( )
Accumulator
C/V communicating
valve
Pump P4
No. Part No. Part name Q'ty Remarks
1RB411-6191Δ
Valve assembly (selector)
1 (633)
2 RP201-61812 Pipe joint (L, G3/8- G3/8) 1 P
3 RP201-61892 Pipe joint (L, G1/4- G1/4) 1 B
4 68591-63231 Washer based elbow 2 A⋅B
5 RP802-61931 Pipe joint (cross, G1/4) 1 B
6RB411-6391Δ
Elbow pipe joint (G3/8-13)
1T
7 01125-61020 Bolt 2
M10 × 1.5 7T
04810-00110 O-ring
A ⋅ B for 1/4
04810-00140 O-ring
P ⋅ T for 3/8
No. Part No. Part name Q'ty Remarks
1 RD401-6126Δ
Filter assembly (pilot)
1 (624)
2 RC401-6383Δ Elbow pipe joint (F4-F3) 1 IN
3 RG908-86443 Adapter 1 R1/8
4 RB419-6381Δ Pipe joint (L G4-G3-G1) 1 OUT
5 RP201-6962Δ Pipe joint (L G1/8-G1/4) 1
6 01025-60655
Bolt
2M6×1 7T

Kubota U25-3 Specifications

General

Brand	Kubota
Model	U25-3
Category	Excavators
Language	English