Kubota U20-3 User Manual

U20-3, U25-3 WSM Machine body (Service section)
II-S-40
[3] Heater setup
1. Make sure the heat hose is not kinked.
2. Tightening torque of adaptor
9.0~9.8N·m over (0.9~1.0kgf·m)
Reference
Cover (Seat support) identification
Adaptor/valve setup angle
Tightening torque of adaptor(R318)
9.0~9.8N•m over
(1)
(2)
(5)
(5)
(9)
(8)
(7)
(6)
(4)
(3)
(4)
(8)
(7)(6)
(6)
(3)(8)(11)(10) (5)(9)(12)
No. Part No. Part name Q’ty Remarks
1 RC418-42582 Pipe joint (R3/8-R1/2) 1 (425)
2 RC601-53541 Valve 1
3RB411-4181Δ Hose (1, WP heater) 1 L=570
4RB411-4182Δ Hose (2, WP heater) 1 L=490
5 09318-88185
Hose clump (spring
type)
4
6RB411-4284Δ Blade 1
7 90407-11211 Grommet 2
8 02131-50100 Nut 2
9
RB419-4772Δ Cover (1, cabin) 1 Red No.1 (433)
RB411-4772Δ in different color
No. Part No. Part name Q’ty Remarks
1RB411-3821Δ
Cover (Support Seat,
heater)
1
Cabin type
(381)
2 3F760-56052
Grille, assembly
(airconditioner)
2
3RB411-4271Δ Bracket (1, heater) 1
4RB411-4272Δ Bracket (2, heater) 1
5RB411-4274Δ Bracket (3, heater) 1
6 01133-61020 Bolt 5 M10×1.25 7T
7 34070-72411 Heater, unit 1 (450)
8 01025-60614 Bolt 4 M6×1 7T
9 RB419-4273Δ Cover (heater, defroster) 1
10 RB411-4285Δ Seal rubber (540) 1 L=540
11 RB411-4286Δ Seal rubber (100) 1 L=100
12
03614-50410 3
Nominal
diameten
Type Part No. Notch Grille installation
Canopy type + fixed
track
RB419-3819Δ None None
Canopy type + variable
track
RB419-3818Δ Exist None
Cabin type + fixed
track variable track
RB411-3821Δ Exist Exist
Engine side Heater side
Marking positions
(3)
(4)
(1)
(2)
Notch

Kubota U20-3 Specifications

General

Brand	Kubota
Model	U20-3
Category	Excavators
Language	English