Sterling 882.00379.00 manual Problem Possible Cause Possible Remedy

Problem	Possible Cause	Possible Remedy
	Dump Delay time set to zero,	Set dump delay time to the
		time it takes the largest
	or insufficient dump delay
		vacuum hopper in the system
	time.
		to dump.
Filter chamber filter cartridge	Dusty material. Optional
	cyclone separator or low-
is becoming obstructed too		Consult sales representative.
	head separator may be
frequently by fines and dust.
	needed – Consult sales rep.
	Dusty material — Optional
	compressed air filter	Consult sales representative.
	cleaning may be needed on
	filter chamber.
Pumps and receivers are on-	No material demand at	Normal operation. Pump
		packages shut off thirty (30)
line, but the pumps are not	receivers if none of the
		seconds after no demand is
conveying material.	amber lights on the optional
		detected for the time
	light board are lit.
(Refer to enclosed Control		programmed.
	The on-line receivers are not	Reconfigure the control
Panel Manual for specific
	assigned to the pumps that	panel, assigning the pumps
instructions.)
	are on-line.	to the desired hopper.
		In cases where numerous
		alarm conditions occur,
		alarm messages build up in
		the display buffer. Each time
		one is released from the
		buffer, the alarm sounds.
		The operator may:
Optional audible/visual alarm		∙ Press the silence button
continues to signal after the
Press-To-Silence button is	The alarm is triggered every	after each message
pressed.		∙ Disable the alarm using
	time an alarm message
		the control panel keypad
(Refer to enclosed Control	displays.
		∙ Cancel No-Convey
Panel Manual for specific		alarm(s) •.
instructions.)
		Correct the problem causing
		the alarm. Alarm will not
		trigger again until another
		high vacuum condition
		occurs. If multiple alarm
		messages are in the buffer,
		the button may need to be
		pressed a few times.

•To cancel No Convey alarm(s):

∙Take the problem receiver(s) off line with field-installed station bypass switches.

∙Take the problem receiver(s) off line with the control panel.

∙Remove the material demand by filling the bin below the vacuum receiver.

Conveying System Mechanical Components Chapter 6: Troubleshooting 97 of 138