October 2008 "3072ES / 3772ES / 3772ES HD" Service & Parts Manual
Page IV
Hydraulic System
HYDRAULIC FLUID UNDER PRESSURE CAN PENETRATE AND BURN SKIN,
DAMAGE EYES, AND JUNE CAUSE SERIOUS INJURY, BLINDNESS, AND EVEN
DEATH. CORRECT LEAKS IMMEDIATELY.
Hydraulic fluid leaks under pressure may not always be visible. Check for pin
hole leaks with a piece of cardboard, not your hand.
Electrical System
Prevent damage to battery and/or electrical system;
• Always disconnect the negative battery cable first.
• Always connect the positive battery cable first.
If contact is made between the positive side of the battery and a metal surface on the machine when
the negative cable is installed a spark will occur. This can cause damage to the electrical system,
battery explosion, and personal injury.
Total System
Failure to perform preventive maintenance at recommended intervals may result
in the unit being operated with a defect that could result in injury or death of the
operator.
Immediately report to your supervisor any Defect or malfunction. Any defect
shall be repaired prior to continued use of the aerial work platform.
Inspection and maintenance should be performed by qualified personnel
familiar with the equipment.
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