HYDRAULIC SYSTEM
L3560, L4060, L4760, L5060, L5460, L6060, WSM
8-M13
5. FRONT LOADER CONTROL VALVE ASSEMBLY
[1] STRUCTURE
The control valve assembly consists of one casting block and four major section as shown above.
(1) Inlet and Outlet Section
This section has P and T ports.
The P port is connected to the OUTLET port of hydraulic pump by the hydraulic pipe.
The T port is connected to the TANK port of transmission case by the hydraulic pipe.
(2) Boom Control Section
The boom control valve is of 4-position, 6-connection, detent, spring center type, consisting of a mono block valve
housing, spool, load check valve, etc. This valve has A1 and B1 ports and controls oil flow to the boom cylinder.
(3) Bucket Control Section
The bucket control valve is of 4-position, 6-connection, no detent, spring center type, consisting of a mono block
valve housing, spool, load check valve, etc. This valve has A2 and B2 ports and controls oil flow to the bucket cylinder.
(4) Power Beyond
This section has PB port which is connected to the INLET port of hydraulic block by the hydraulic hose, and feeds
oil to the three point hydraulic control valve.
9Y1210824HYM0016US0
(1) Inlet and Outlet Section
(2) Boom Control Valve
(3) Bucket Control Valve
(4) Power Beyond
(5) Relief Valve
P: Pump Port
T: Tank Port
A1: A1 Port
A2: A2 Port
B1: B1 Port
B2: B2 Port
PB: Power Beyond Port
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