Figure 38.
Conveyor Harness Test Points.
o Shut down the hydraulic system and disconnect the hydraulic oil
lines from the conveyor motor.
Install a tee connector and
pressure gage between the oil lines (Fig. 40F).
Start the
primary or backup hydraulic system and operate the conveyor
system in both directions.
The pressure gage must indicate
pressure in both directions. If line pressure was indicated in
one direction only, you must repair or replace the hydraulic oil
lines from the motor to the hydraulic control panel. If pressure
is indicated in both directions, the conveyor hydraulic motor
must be replaced.
You located the hydraulic problem in the conveyor system that caused the
conveyor chain not to move. Backup one step to where you assumed the
problem was hydraulic not electrical. Assume the problem is electrical
and troubleshoot the electrical system.
o Set the MASTER switch to the OFF position and disconnect the
hydraulic control panel connector. Turn the MASTER switch to the
ON position. Using a multimeter, check for voltage by placing
the red probe in socket B and
45
OD1703
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