FRONT LOADER
LA525, LA765, WSM
1-M11
(Continued)
1. When the hydraulic control lever is set to the
"DUMP"
position, the spool (4) of the bucket control section (2)
moves to the right. This makes oil passages among passage 2 (8),
A2
port and
B2
port.
2. The pressure-fed oil from the
P
port flows through the boom control valve (1), opens the load check valve (7), and
flows through the notched section of the spool and
A2
port to the bucket cylinder to extend the cylinder.
3. Return oil from the bucket cylinder (9) flows from the
B2
port to the passage 2 (8), and flows to the
A2
port
together with the pressure-fed oil from the
P
port.
As a result, the dump speed is increased.
(Reference)
• The oil pressure of the
A2
port and
B2
port is identical, but the bucket cylinder extends by the difference of
received pressure area (cylinder rod part).
9Y1211014FLM0010US0
KiSC issued 06, 2017 A
Summary of Contents for LA525
Page 1: ...LA525 LA765 WORKSHOP MANUAL FRONT LOADER KiSC issued 06 2017 A ...
Page 4: ...I INFORMATION KiSC issued 06 2017 A ...
Page 10: ...INFORMATION LA525 LA765 WSM I 5 9Y1211014INI0001US0 KiSC issued 06 2017 A ...
Page 11: ...INFORMATION LA525 LA765 WSM I 6 9Y1211014INI0002US0 KiSC issued 06 2017 A ...
Page 20: ...G GENERAL KiSC issued 06 2017 A ...
