Kubota BX1880, BX2380, BX2680 Tractor Loader Workshop Manual

Kubota Tractor Model BX1880, BX2380, BX2680
Publication: 9Y111-16342
Format: PDF
Language: English
Kubota BX1880, BX2380, BX2680 Tractor Workshop Manual – 436 Pages
Kubota BX1880, BX2380, BX2680 Tractor Operators Manual – 106 Pages

Table of Content of the Workshop Service Manual

This Workshop Manual tells the servicing personnel about the mechanism, servicing and maintenance of BX1880, BX2380, BX2680, RCK60B-23BX, RCK54-23BX, RCK48-18BX, RCK60D-26BX and RCK54D-26BX. It contains 4 parts: “Information”, “General”, “Mechanism”, and “Servicing”.
Information
This section primarily contains information below.
• Safety first
• Safety decal
• Specifications
• Dimensions
General
This section primarily contains information below.
• Engine identification
• Model identification
• General precautions
• Maintenance check list
• Check and maintenance
• Special tools
Mechanism
This section contains information on the structure and the function of the BX1880, BX2380, BX2680 Tractors. Before you continue with the subsequent sections, make sure that you read this section.
Servicing
This section primarily contains information below.
• Troubleshooting
• Servicing specifications (Service specifications) Tightening torques
• Checking, disassembling and servicing

This is only an extract of the TOC and not the whole TOC

7. HYDRAULIC SYSTEM
MECHANISM …………………………………………………………………………………………………………………………………..7-1
1. Structure of hydraulic system …………………………………………………………………………………………………….7-1
2. Hydraulic circuit ……………………………………………………………………………………………………………………….7-2
3. Hydraulic pump………………………………………………………………………………………………………………………..7-4
3.1 Outline of hydraulic pump …………………………………………………………………………………………………..7-4
3.2 Structure of hydraulic pump ………………………………………………………………………………………………..7-4
3.3 Specification of hydraulic pump …………………………………………………………………………………………..7-4
4. Control valve……………………………………………………………………………………………………………………………7-4
4.1 Outline of control valve……………………………………………………………………………………………………….7-4
4.2 Function of control valve …………………………………………………………………………………………………….7-5
4.2.1 Control valve in neutral position……………………………………………………………………………………7-5
4.2.2 Control valve in lift position ………………………………………………………………………………………….7-6
4.2.3 Control valve in down position ……………………………………………………………………………………..7-7
5. Flow priority valve…………………………………………………………………………………………………………………….7-8
5.1 Outline of flow priority valve ………………………………………………………………………………………………..7-8
5.2 Structure of flow priority valve ……………………………………………………………………………………………..7-9
5.3 Specification of flow priority valve ………………………………………………………………………………………7-10
6. Relief valve ……………………………………………………………………………………………………………………………7-10
6.1 Outline of relief valve………………………………………………………………………………………………………..7-10
6.2 Structure of relief valve ……………………………………………………………………………………………………. 7-11
6.3 Function of relief valve ……………………………………………………………………………………………………..7-12
6.4 Specification of relief valve………………………………………………………………………………………………..7-13
7. Hydraulic cylinder …………………………………………………………………………………………………………………..7-14
7.1 Structure of hydraulic cylinder……………………………………………………………………………………………7-14
8. Hydraulic block type outlet……………………………………………………………………………………………………….7-15
8.1 Structure of hydraulic block type outlet ……………………………………………………………………………….7-15
9. Mower linkage ……………………………………………………………………………………………………………………….7-16
9.1 Structure of mower linkage ……………………………………………………………………………………………….7-16
10. Front loader valve…………………………………………………………………………………………………………………7-17
10.1 Structure……………………………………………………………………………………………………………………….7-17
10.1.1 Structure of front loader valve and pipe……………………………………………………………………..7-17
10.1.2 Structure of front loader control valve………………………………………………………………………..7-18
10.2 Front loader hydraulic circuit ……………………………………………………………………………………………7-19
10.3 Function of loader control valve ……………………………………………………………………………………….7-20
10.3.1 Loader control lever in neutral position………………………………………………………………………7-20
10.3.2 Loader control lever in up position…………………………………………………………………………….7-21