Pinguely-Haulotte HA20PX, Repair Manual

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Repair manual
83
14 -
OPERATING INCIDENTS
14.1 - INCIDENT TABLE
Before diagnosing a failure, check that:
• the fuel tank is not empty,
• the batteries are properly charged,
• the turntable and platform "palm button" emergency stop buttons are
unlocked,
• the relays (platform control panel - turntable box) are correctly pushed
into their compartments, (see corresponding paragraph).
• the main tank oil level is OK,
• the state of the fuses, (see corresponding paragraph).
• the electrovalves are working properly by checking the state of the
LEDs in the turntable box.
Check the state of the LEDs (see corresponding paragraph):
The LEDs inside the turntable box indicate the state of the electrovalves:
• LED off: electrovalve present and not controlled,
• LED on: electrovalve present and controlled.
NB: If an electrovalve is not connected, the corresponding LED is
permanently on.
Instructions:
• Identify the defective function.
• Machine power on but not started: check the presence of the electro-
valves (LED off).
• No electrovalve should be controlled (LED on).
• Check that the outputs corresponding to the function are active using
the LEDs and directly on the electrovalve heads.
• If they are not active, check which inputs create the function.
• Test the inputs with a voltmeter.