Sterling BP1620, BP1628, BP1640 Problem, Possible Cause, Solution, Fan wheel is loose on

Problem	Possible Cause	Solution
	Fan wheel is loose on	Tighten set screws as
	shaft.	required.
	Transition or cyclonic air
Granulate builds up in	separator tubing is	Clean as required.
	clogged.
the transition or tubing
		Check for loose fan
	Fan is not evacuating	wheel on shaft, worn fan
	properly.	wheel, or loose drive
		belts.
	Material being placed
	into the machine for
	processing is too large	Reduce the initial size of
	for the hopper, cutting	the feedstock.
	chamber, or rotor
Feedstock hangs up in	diameter.
the hopper or cutting
	Knives are dull.	Sharpen or replace
chamber
		knives and re-install.
		Regulate the infeed of
	Overloading of the	scrap to uniformly feed
	machine.	the machine over an
		extended time period.
	Feedstock may be hung	Shut the machine down
	up inside hopper.	and check.
	Screens are plugged.	Clean the screens.
	Fan is too small.	Replace with larger unit
		or fan wheel.
No granulate
	Fan line may be clogged.	Clean as required.
	Fan wheel is damaged or	Replace or repair as
	worn.	required.
	Fan tubing is not	Connect as required.
	connected properly.
	Knife gap is too large.	Adjust knives to proper
		gap specifications.
	Knives are dull.	Sharpen or replace
Stringy granulate		knives and reinstall.
		Reduce the amount of
	Overloading of feedstock.	feedstock put into the
		machine per unit of time.

BP1620, BP1628 & BP1640 Granulators Page 41 BP1600