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SectionE 46

The document describes the hydraulic circuit for the bucket close operation, detailing the flow of pressurized oil from two pumps into a control valve. It explains how pilot pressure oil directs the operation of the bucket spool and the convergence of oil from both pumps to facilitate the bucket closing function. The operation utilizes one and a half pump flow for effective performance.

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22 views1 page

SectionE 46

The document describes the hydraulic circuit for the bucket close operation, detailing the flow of pressurized oil from two pumps into a control valve. It explains how pilot pressure oil directs the operation of the bucket spool and the convergence of oil from both pumps to facilitate the bucket closing function. The operation utilizes one and a half pump flow for effective performance.

Uploaded by

Nik
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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Section E - Hydraulics

Circuit Descriptions
Bucket Close

Bucket Close

For schematic, K Fig 13. ( T E-41).

Pressurised oil from pump 1 enters port P1 of control valve


A. Pressurised oil from pump 2 enters port P2 of the
control valve.

Operation of the bucket close control directs pilot pressure


oil into control valve port PRb4 and switches bucket spool
BKT. At the same time, pilot pressure oil, divided at port
C10 of shuttle block, enters control valve port Pi3 to switch
the P1 side spool. Pressurised oil flows from control valve
port P5 and, via the external hose, enters port P4. Because
the P1 spool side is bleeding off, the pressurised oil from
P1 and P2 converge before bucket spools perform the
bucket closing function at one and a half pump flow.

E-40 9803/6540-4 E-40

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