h16tp(x - AJ Maskin AS

Sheet C121CORRECTIVE MAINTENANCE SHEETCHANGING AN END OF STROKE CONTACTORFolio 2/4Photo 153 2 SQ39 - Checking break actions• When the boom is above the horizontal, travel should switch to micro-speed,and if the machine is tilted, all movements are disabled except: telescope in,boom lifting, rotation, basket rotation and compensation.• For the USA: if the machine is tilted, the tilt buzzer sounads and the fault lighton the platform control panel comes on.10 - Removing an SQ5 or SQ6 end of stroke contactor (Weighing - EC only)• Remove the protective plate (ref. 1 Photo 17).• Unscrew the fixing screws (ref. 2 Photo 17).• Remove the end of stroke contactor.• Open the end of stroke contactor, mark and disconnect the electric connections.11 - Installing an SQ5 or SQ6 end of stroke contactor (Weighing - EC only)Photo 164 3 2 SQ5SQ5:SQ6:1st threshold detection (platform control panel buzzer)2nd threshold detection (movements disabled + turntable buzzer + redlight indicator lit on platform control panel)SQ6• Screw the two adjustment wheels as far as possible (ref. 2 and 3Photo 16).• Open the new end of stroke contactor, reconnect the electric connectionsand close the end of stroke contactor.• Put the end of stroke contactor back into place, in the position markedduring dismantling.• Fix the contactor.• Adjust the levers (ref. 4 Photo 16) of the contactors so that when idle, therollers are aligned with the wheels.Photo 171IF THIS PROCEDURE IS NOT RESPECTED AND THE MACHINEJOLTS, THERE IS A RISK THAT THE ROLLER MAY MOVEOUTSIDE THE ADJUSTMENT WHEEL.12 - Adjustment and testing of the SQ5• Put the machine back in the operational configuration.• Put a load of 230 kg (507 lb) in the basket.• Unscrew the adjustment wheel (ref. 3 Photo 16) until the basket controlpanel buzzer sounds.• Tighten the counter-nut.13 - Adjustment and testing of the SQ6• Put the machine back in the operational configuration.• Put a load of 250 kg (551 lb) in the basket.• Unscrew the adjustment wheel (ref. 2 Photo 16) until movements are disabled,the turntable buzzer sounds and the red alert light indicator is lit onthe platform control panel.• Tighten the counter-nut.• If necessary, adjust the basket stops (ref. 5 Photo 18).