wsm Kubota L4100, Workshop Manual

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CLUTCH L4100, WSM
2-M3
(EU)
Operation
The oil from the regulator valve flows into the clutch
valve and opens the check valve (1). When the shift lever
is set at the
"ENGAGED" position, the spool (2) is turned
to "A" position, then the oil flows through the spool (2)
into the accumulator and the clutch pack. Oil entering the
clutch pack pushes the piston (4) to engage the clutch
pack. The accumulator absorbs the engaging shock of
the clutch pack.
When the shift lever is set at the "DISENGAGED"
position, the spool (2) is turned to "B" position, then the
oil from the regulator valve is stopped by the spool (2)
and the oil in the PTO clutch pack and accumulator is
drained into the transmission case. Thus the piston (4) is
pushed back, the brake plate (7) is also moved to contact
the brake disc (6) so as to stop the rotation and the drag
of the PTO shaft.
9Y1210278CLM0007US0
(1) Check Valve
(2) Spool
(3) Plate
(4) Piston
(5) Brake Spring
(6) Brake Disc
(7) Brake Plate
(8) Return Spring
(9) Clutch Disc
(10) Back Plate
(11) Clutch Hub
(12) Accumulator Piston
(13) Mid-PTO Bearing Case (a) ENGAGED Position
(b) DISENGAGED Position
(c) From Regulation Valve
(d) Drain (To the Transmission
Case)
A: PTO Clutch Valve
B: Accumulator
C: PTO Clutch Pack
KiSC issued 08, 2012 A