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SECTION 8
8-12
TROUBLESHOOTING-TELESCOPIC SYSTEM
CARRIER & PACKER PANELS MOVE
DOWN TO “INTERRUPTED CYCLE”
POSITION
OPERATOR ACTION
None-MCV(Main Control Valve) shifts automatically.
HYDRAULIC SEQUENCE
At the end of the packer cylinder stroke pressure builds
to 1950 PSI (134 BAR) causing the MCV (Main Control
Valve) to shift, diverting flow to the rod end of the car-
rier cylinders. The cylinders retract, moving the carrier
and packer panels down to the “interrupted cycle” posi-
tion (Trapped fluid keeps the packer panel cylinders
retracted). At the end of the carrier cylinder retraction
stroke, pressure builds to 2150 PSI (148 BAR) causing
the MCV (Main Control Valve) to shift to neutral.
PRESSURE
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RETURN
MAIN CONTROL
VALVE
HYDRAULIC
FLUID TANK
PUMP
FRONT
CONTROL VALVE
TELESCOPIC
CYLINDER
TAILGATE LIFT
CYLINDER
CARRIER
CYLINDER
PACKER
CYLINDER
CARRIER
CYLINDER
TAILGATE LIFT
CYLINDER
P.O. CHECK
VALVE
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Summary of Contents for LEACH 2R-III
Page 2: ......
Page 8: ......
Page 26: ...SECTION 2 2 8 ...
Page 28: ...OPERATION SECTION 3 LOCATION OF OPERATING CONTROLS 3 2 4 6 5 7 8 1 2 3 8 9 10 11 12 7 ...
Page 46: ...SECTION 3 3 20 ...
Page 54: ...SECTION 4 4 8 ...
Page 60: ...SECTION 6 6 4 PREVENTIVE MAINTENANCE 1 2 3 4 5 6 7 8 ...
Page 62: ...SECTION 6 6 6 ...
Page 76: ...SECTION 7 7 10 ...