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Group 4 Hydraulic System

The document describes the hydraulic system of Group 4 machinery. It includes: 1. A diagram labeling the main hydraulic components including the hydraulic tank, main pump, solenoid valve, and cylinders. 2. Details about the mounting of additional hydraulic components like the boom, arm, and bucket cylinders. Safety lock systems are also noted. 3. Tables providing the recommended tightening torque specifications in kgf-m and lbf-ft for each hydraulic component. Torque ranges are given to ensure proper securement during assembly.

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Willian Ticlia Ruiz
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62 views2 pages

Group 4 Hydraulic System

The document describes the hydraulic system of Group 4 machinery. It includes: 1. A diagram labeling the main hydraulic components including the hydraulic tank, main pump, solenoid valve, and cylinders. 2. Details about the mounting of additional hydraulic components like the boom, arm, and bucket cylinders. Safety lock systems are also noted. 3. Tables providing the recommended tightening torque specifications in kgf-m and lbf-ft for each hydraulic component. Torque ranges are given to ensure proper securement during assembly.

Uploaded by

Willian Ticlia Ruiz
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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GROUP 4 HYDRAULIC SYSTEM

1. HYDRAULIC COMPONENTS MOUNTING 1

4
Solenoid
A valve
Air breather
2
4 4

Main pump
3
4
Hydraulic tank
5
Level gauge 6
Spin filter
4

Main control valve

4 Turning joint

5
10
5
9

Swing motor 5

RCV-LH VIEW A
4 7 Main pump
1 housing

RCV-RH Terminal 7

1 8
Coupling

2 4
RCV-pedal
4
Cross

4
4

16079CM05

・Tightening torque

Item Size kgf・m lbf・ft Item Size kgf・m lbf・ft


1 M 6×1.0 1.05±0.2 7.6±1.45 6 M14×2.0 19.6±2.9 142±21
2 M 6×1.0 1.44±0.3 10.4±2.2 7 M16×2.0 22.0±1.0 159±7.2
3 M 8×1.25 2.5±0.5 18.1±3.6 8 M16×2.0 22.1±2.4 160±17.4
4 M10×1.5 6.9±1.4 49.9±10.1 9 M20×2.5 57.9±8.7 419±62.9
5 M12×1.75 12.2±1.3 88.2±9.4 10 M20×2.5 45±5.1 325±36.9

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2. HYDRAULIC COMPONENTS MOUNTING 2

1
2

1
1
2
2
1

5 BOOM CYLINDER ARM CYLINDER

Boom safety lock system Arm safety lock system


Boom safety
lock valve
2
2

2 Arm safety
lock valve
2

Boom cylinder 2
2
Arm cylinder
3

4
3 4

BUCKET CYLINDER 16079CM07

・Tightening torque

Item Size kgf・m lbf・ft Item Size kgf・m lbf・ft


1 M10×1.5 3.2±0.3 23.1±2.2 4 M16×2.0 23±2.0 166±14.5
2 M10×1.5 5.4±0.5 39.1±3.6 5 M18×2.5 32±3.0 232±21.7
3 M12×1.75 5.5±0.6 39.8±4.3 - - - -

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