Keith WALKING FLOOR KICD, Owner'S/Operator'S Manual

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12
DOC06387 Rev. C
OWNER / OPERATOR MANUAL KICD - Container Drive OWNER / OPERATOR MANUAL KICD - Container Drive
3.2 Oil Flow Diagram
UNLOADING CYCLE
Pressure Return
Blocked Return Oil
Standing Oil
Stage 2 Stage 1
Pressure in the rear of all cylinders.
Control valve actuator sends pressure to close the control valve
and open the restrictor valve in the front manifold. Cylinder #1
is open to return, causing it to move. (Load does not move.)
Blocked by check valves.
Note: Stage 1 requires more pressure than stage 4.
Pressure still in rear of all cylinders.
Cylinder #1 completes its full stroke, opening the check valve,
allowing the oil in cylinder #2 to escape, causing it to move.
(Load does not move.)
Blocked by check valve.
Note: Stage 2 requires more pressure than stage 1.
Stage 3
Pressure still in rear of all cylinders.
Cylinder #2 completes its full stroke, opening the check valve,
allowing the oil in cylinder #3 to escape to return, causing it to
move. (Load does not move.)
Note: Stage 3 requires more pressure than stage 2.
Stage 4
Cylinder #3 completes its stroke, shifting the switching valve, which
reverses pressure and return, transferring the pressure to the front of
all cylinders.
All cylinders are now open to return and move to the rear of the
trailer together, moving the load.
As the cylinders complete their stroke, cylinder #1 shifts the
switching valve, which reverses pressure and return, transferring the
pressure to the rear of all cylinders again and the cycle starts over.
Note: Stage 4 requires less pressure than stages 1, 2, or 3.
Revised 2012-12-10 77480
Front
Rear
Control Valve
Closed
3 2 1
Restrictor
Valve Open
Control Valve
Open
Control
Valve
Return
Pressure
Switching
Valve
Restrictor
Valve Open
Control Valve
Closed
Front
Rear
Restrictor Valve
Open
Switching
Valve
Return
Pressure
Control
Valve
Control Valve
Open
Control Valve
Closed
Front
Rear
Restrictor
Valve Open
Control Valve
Open
Control
Valve
Return
Pressure
Switching
Valve
Restrictor
Valve Open
2 1
3
Control Valve
Closed
Front
Rear
3 2 1
Restrictor
Valve Closed
Control Valve
Open
Control
Valve
Return
Pressure
Switching
Valve
Restrictor
Valve Open
Restrictor
Valve Open
Check Valves
1
3 2
View from Underneath Looking Up
Check Valves
Check Valves Check Valves