PH/PHX-2 Manual
35
Hydraulic Drive System
Follow the recommended procedure in the indicated order to solve the problem and
avoid unnecessary repairs. Make sure all Switches are in the correct position and
Indicator Lights ON before determining the existence of a fault.
WARNING! Before correcting any kind of defect, make sure the Main Power
Switch is OFF and incoming power is locked OFF. NEVER access the inside of
the Control Panel with the Proportioner power supply ON. The Hydraulic Unit is
a component that works under pressure. Do not open any connection or carry
out maintenance on components subject to pressure until all pressure has been
bled to zero.
CAUTION! Do not attempt to reset the Motor Contactor more than twice.
Failure of the Motor Contactor safety mechanism will occur and the Contactor
will become inoperable and/or the Motor will be damaged. The cause of the
problem must be determined and corrected.
PROBLEM_________________________________________________________________
Hydraulic Pump does not develop pressure and the electric
motor is not running.
SOLUTIONS
1. Motor Contactor Safety or Motor Breaker
The Electric Motor is protected from excessive current
by an Overload Safety Switch. After allowing the
Motor to cool, open the Control Panel and reset Motor
Contactor Safety.
To Next Page
Loading...
