Kubota U25-3 Repair Manual

U20-3, U25-3 WSM Machine body (Service section)
II-S-63
[9] Swivel joint
1)
Precautions in disassembling/reassembling
(1) Tightening torque of hydraulic adaptor
G1/4:24.5~29.4N·m(2.5~3.0kgf·m)
G3/8:49.0~53.9N·m(5.0~5.5kgf·m)
(2) Installing on the track frame
Tightening torque:
166.7~196.1N·m(17.0~20.0kgf·m)
Apply screw LOCTITE.(Loctite 271)
(3) Before setting up, check the packings for
scratches, deformation and other troubles.
Apply grease over the seals inner and outer
surfaces. Mount the seal with its lip outward.
(4) Before joining the body and shaft together,
apply grease over the seals inner and outer
surfaces. Join them together gently.
(5) Installing the swivel joint assembly and stay
Tightening torque:77.5~90.2N·m(7.9~9.2kgf)
Apply screw LOCTITE. (Loctite 271)
(6) Place the plugs (PT1/8, PT1/4) so that they do
not stretch out of the shaft end.
Front
(Front side)
Front
(Blade side)
Rear RightLeft
Front
(Blade side)
Attention to the direction
of the belleville spring
(1)
(2)
(3)
(4)
(5)
(6)
(9) (10)
(11)
(12)
(7)
(8)
a.Blade side
(a)
No. Part No. Part name Q’ty Remarks
1 RB411-6240Δ Swivel joint, assembly 1 (623)
2 01176-61440 Bolt 4 M14×1.5 9T
3 35358-27371 Plain spring 4
4 RB411-6376Δ Pipe joint (L, G 1/4 - G 1/4) 4 A·B·J·K
5 69254-78491 Pipe joint (L, G 1/4 - G 1/4) 1 C
6 RP201-61812 Pipe joint (L, G 3/8 - G 3/8) 3 D·F·G
7 68311-64321 Straight pipe joint 1 E
8 RC411-63881 Pipe joint (bushing G 3/4) 1 H
9 RD401-63951 Elbow pipe joint (G 4-13) 1 H
04810-00110 O-ring 7 For 1/4 A·B·C·H·J·K
04810-00140 O-ring 4 For 3/8 D·E·F·G
10 68728-76151 Adaptor 8 A·B·C·H·J·K
11 68311-64321 Straight pipe joint 4 D·E·F·G
04810-00110 O-ring 8 For 1/4 A·B·C·H·J·K
04810-00140 O-ring 4 For 3/8 D·E·F·G
No. Part No. Part name Q’ty Remarks
1 RB411-6242Δ Shaft (swivel joint) 1
2 RC411-9234Δ Collar (swivel joint) 1
3 RC411-6241Δ Gasket 1
4 RC411-6238Δ Gasket (swivel joint) 11
5 RB411-6241Δ Body (swivel joint) 1
6 RC411-6237Δ Collar (swivel joint) 1
7 04612-00500 Shaft circlip 1
8 31353-4385Δ Plug 1
9 68311-1338Δ Plug (PT 1/8) 4
10 68311-1335Δ Plug (PT 1/4) 4
11 RB411-6246Δ Collar (swivel joint) 2
12 01133-61230 Bolt 4 M12×1.25 7T
Month and serial No.
Two lower digits of
calendar year
Serial No.(3 digits)
Month
Jan Feb Sep Oct Nov Dec
Marking

Kubota U25-3 Specifications

General

Brand	Kubota
Model	U25-3
Category	Excavators
Language	English