Venturo ET10KX, Installation & Owner'S Manual

Page: 36 / 64

CINCINNATI, OHIO
MFG., INC.
19477c
C300
4-21-98
4-24-00A
INSTALLATION DWG
ET10KX
OPERATING A LOADED CRANE USING THIS PROCEDURE WILL VOID THE WARRANTY.
LOSS OF BOOM DOWN (BD) ONLY:
CHECK FOR WINCH UP AND BOOM OUT. IF THESE TWO FUNCTIONS ARE WORKING
PROCEED TO NEXT STEP. IF THESE TWO FUNCTIONS ARE ALSO INOPERATIVE SEE THE
PREVIOUS SECTION ("LOSS OF WINCH UP, BOOM DOWN, AND BOOM OUT").
WARNING: THE FOLLOWING PROCEDURE IS INTENDED FOR UNLOADED CRANE STOWAGE
ONLY - A LOADED CRANE SHOULD NEVER BE OPERATED IN THIS MANNER. TO STOW
AN UNLOADED CRANE WHICH HAS LOST THE BOOM DOWN FUNCTION PERFORM THE
FOLLOWING:
CAUTION: KEEP HANDS AWAY FROM ALL PINCH POINTS BY APPROACHING THE
“BOOM TOP POSITION SWITCH” FROM THE TOP OF THE MECHANISM - IN FRONT OF
THE WINCH AND JUST BEHIND THE BOOM
. LOCATE THE BOOM TOP POSITION
SWITCH (SILVER BUTTON) AND DEPRESS USING A LONG SCREWDRIVER. AT THE
SAME TIME, ACTIVATE THE BOOM DOWN SWITCH ON THE PENDANT CONTROL.
IF BOOM DOWN IS NOW FUNCTIONAL THIS WOULD INDICATE THAT THE OVERLOAD
PRESSURE SWITCH IS NOT PROPERLY GROUNDED OR IS ITSELF MALFUNCTIONING
(NOT PROVIDING THE PRIMARY GROUND TO THE BOOM DOWN RELEASE COIL).
LOSS OF HYDRAULIC FUNCTIONS
IF (ANY ONE OF THESE THREE FUNCTIONS) BOOM UP, BOOM OUT, OR BOOM IN IS
FUNCTIONING PROPERLY, THE HYDRAULIC POWER UNIT AND ITS ASSOCIATED CONTACTOR
ARE WORKING PROPERLY AND THIS SECTION DOES NOT APPLY.
IF THE HYDRAULIC POWER UNIT DOES NOT WORK LISTEN FOR THE CLICK OF THE
HYDRAULIC POWER UNIT CONTACTOR (LOCATED IN THE SIDE ELECTRICAL BOX).
IF NO CLICK (OF THE CONTACTOR) IS HEARD WHEN ACTUATING ANY ONE OF THE THREE
FUNCTIONS THE PROBLEM IS ELECTRICAL, NOT HYDRAULIC, AND THE "INITIAL
TROUBLESHOOTING" SECTION SHOULD BE CONSULTED.
IF THE HYDRAULIC POWER UNIT OPERATES (YOU CAN HEAR THE MOTOR RUNNING), BUT THE
HYDRAULIC FUNCTION(S) (BOOM UP, BOOM OUT, BOOM IN) DO NOT, PERFORM THE
FOLLOWING STEPS:
ACTUATE A HYDRAULIC FUNCTION WHILE TESTING THE MAGNETIC FIELD OF THE “SURGE
BYPASS” COIL (REFER TO THE WIRING DIAGRAM) WITH A SMALL SCREW DRIVER - THE
COIL SHOULD MAGNETICALLY ATTRACT THE SCREW DRIVER BLADE WHEN ANY OF THE
HYDRAULIC FUNCTIONS ARE OPERATED.
IF NO MAGNETIC ATTRACTION IS EVIDENT, THE COIL IS NOT RECEIVING POWER, NOT
RECEIVING A GROUND, OR THE COIL ITSELF HAS FAILED.
IF THE COIL IS PRODUCING A MAGNETIC FIELD REMOVE THE COIL AND BACK OFF THE
VALVE STEM FROM THE VALVE BLOCK - IT IS NOT NECESSARY TO COMPLETELY RE-
MOVE THIS VALVE. CAREFULLY TURN THE VALVE “IN”
UNTIL IT IS SEATED - NO TORQUE
IS REQUIRED ("FINGER-TIGHT" IS SUFFICIENT) . OVER-TORQUING THE VALVE MAY RESULT
IN DAMAGE OR MALFUNCTION.