(1) Input
from engine crankshaft via
Duplex chain & sprockets
(2) Piston
Brake
(3) Lubrication
& return oil pumps
(4) Output
shaft 1000 rpm (Clockwise from seat)
(5) Oil
return to transmission sump
(6) Oil
supply (from tractor Low Pressure circuit)
(7) Control
Solenoid
NH RM 31 - 3
CIH RM 6011
PTO Engaged
(1) Solenoid
Valve (Diverter type NOT On / Off)
(Energised - oil to clutch)
(2) Lubrication pump
(3) Engagement orifice (restricts and controls engagement oil)
(4) Brake (released)
(5) Clutch piston
(applied)
(6) Clutch plates
(clamped)
(7) Lubrication relief valve
(8) Input shaft
(9) Oil Reservoir / Sump
(10) Lubrication pump suction pipe
(11) Scavenging pump suction pipe
(12) Output shaft
(13) Check valve (held shut by clutch applying pressure)
(14) Scavenging pump (returning excess reservoir oil)
PTO Disengaged
(1) Solenoid
Valve (Diverter type NOT
cut off)
(Power off - oil to brake)
(2) Lubrication pump
(3) Engagement orifice
(4) Brake (applied)
(orifice allows oil leakage to lubricate brake and replenish sump oil)
(5) Clutch piston
(released)
(6) Clutch plates
(free)
(7) Lubrication relief valve
(8) Input shaft
(9) Oil Reservoir / Sump
(10) Lubrication pump suction pipe
(11) Scavenging pump suction pipe
(12) Output shaft
(13) Check valve (open allowing faster dis-engagement)
(14) Scavenging pump (returning excess reservoir oil)
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