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3-10. KIDNEY LIFT DIAGNOSIS CHART
Problem
Kidney Lift moves improperly
Kidney Lift chatters or loses position
Reason
Incorrect Speed Adjustment
Spool Valve Not Centered
Defective Check Valve
Low on Oil
Pinched Hose
Defective Mini-Valve
Pressure Relief Valve Not Set Properly
Defective Solenoid
Defective Relay Box or Pendant Control
Bypass Valve out of Adjustment
Defective or Dirty Check Valve
OiI Leakage in Circuit
Air Inside Cylinder
Pinched Hose
Low on Oil
Lift Rods Binding
Figure 3-8. Kidney Lift Circuit
82206-308
SPEED
CONTROL
CHECK
VALVE
MINI-VALVE
INTERNAL OIL RETURN TO RESERVOIR
INTERNAL
OIL FROM PUMP
PLUMBING
TERMINAL
FLEXIBLE
HOSE
COPPER
LINE
KIDNEY LIFT
CYLINDER
KIDNEY LIFT
CYLINDER
BYPASS
VALVE
DOWN CIRCUIT
UP CIRCUIT
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