Tri Tool 765RVC Hyrdaulic Power Supply - Manual (Page 18)

18
TRI TOOL INC.
92-0306 : Rev. 140715
WARNING:
PENDANT CHECK PROCEDURE
Test the Model 765 RVC remote control pendant functions using an ohm meter by
doing the following:
Field tests can also be made for all functions except for the volume control
using a continuity test meter.
All tests are to be done with the Pendant disconnected from the power supply
and through the pins of the connector.
Do Not Disconnect or Connect the Pendant from the power supply with the
primary power connected. A fuse may blow.
To Verify the Motor ‘Start/Stop’ Functions
Either a Continuity or Ohm meter may be used for this series of checks.
Connect the meter to pins A and B.
Set the volume control to ‘Zero’ and the ‘Start/Stop’ switch to the ‘Start’ position. The
meter will show an ‘Open’ circuit (infinite resistance).
Depress and hold the ‘Start’ switch (momentary contact switch) and the meter will
change from an ‘Open’ circuit to a ‘Closed’ circuit (resistance less than 1 ohm).
While holding the ’Start’ switch down rotate the volume control clockwise (off the
‘Zero’ setting).
The meter will indicate a change from a ‘closed’ circuit to and ‘open’ circuit.
Return the Volume Control to the ‘Zero’ position and while still holding the ‘Start’
switch down, depress the ‘Start/Stop’ switch.
The meter will change from a ‘Closed’ circuit to an ‘Open’ circuit with the Start’
switch depressed.
Connect the meter to pins ‘B’ and ‘C’.
Set the ‘Start/Stop’ switch in the ‘Start’ position.
The meter should show a ‘Closed’ circuit.