Sterling BP1640, BP1628, BP1620 installation manual 40 BP1600

Machine stalls/(optional) fan stalls

Excessive power required-blown fuses

Bearings sound noisy or are excessively hot

Belts slip or squeal

Granulate builds up in the transition or tubing

	Inspect, and if
Machine has loose or	acceptable for use,
thrown belts.	reinstall and tighten per
	instructions.
(Optional) Fan wheel is	Tighten screws as
loose on shaft.	required.
Overloading of the	Reduce the amount of
	feedstock put into the
machine
	machine per unit of time.
Knives are dull	Sharpen or replace
	knives and reinstall.
Knife gap is too large	Adjust knives to proper
	gap specification.
Clearance between the	Check that the screen is
rotor knives and screen	properly seated in the
is too small.	screen chamber.
	Lubricate per (or replace
Lack of lubrication	bearing) maintenance
	instructions (refer to
	Section 9-1)
Overloading of the	Reduce the amount of
	feedstock put into the
machine
	machine per unit of time.
Bearings have exceeded	Consult the Cumberland
	Service Department for
their rated life.
	replacement instructions.
Belts are too loose	Tighten per maintenance
	instructions.
Overloading of the	Reduce the amount of
	feedstock put into the
machine.
	machine per unit of time.
Pulleys are not properly	Loosen and align as
aligned.	required.
	Inspect, and if
Machine has thrown	acceptable for use,
belts.	reinstall and tighten per
	maintenance instructions.
Fan is too small	Replace with larger unit
	or fan wheel.
Transition or tubing is	Reduce the amount of
clogged due to	feedstock put into the
overloading of machine.	machine per unit of time.
Return air vents are	Ensure the vents are
covered or too small.	open.

BP1620, BP1628 & BP1640 Granulators Page 40 BP1600