
Appendix
67
GLOBAL
INDUSTRIES, INC.
Drag Conveyors
10230011
2016-06-14
reduced rated
capacity
(low capacity)
obstructions at conveyor inlets,
bins, hoppers, or chutes feeding the
conveyor
remove obstruction
clumping of moist material on the
paddles or along trough sides which
are effectively reducing conveyor
capacity
remove clumping
possible damage to chain or paddles
due to foreign object caught in the
conveyor
check conveyor and replace any damaged or
broken paddles, attachments, or chain / remove
any foreign objects and replace any damaged parts
(don’t attempt to reweld attachments onto the
chain) heat treated chain attachments can become
brittle and crack resulting in chain breakage
chain too loose
adjust take-up for proper chain tension
improper chain speed
check shaft rpm / adjust it if needed
plugging
discharges are clogged / check them and unplug
as needed
material size and shape
the material may be restrictive / alter fl ow
accordingly
reducer
overheating
low or overfi lled gear lubricant
not fi lled according to manufacturer’s
recommendations / refi ll
wrong grade or weight of lubricant
see manufacturer’s recommendations / refi ll
reducer overloaded
wrong size reducer / obtain proper size
reducer failing
worn gears or failed bearings
start-up problem
the drive wasn’t furnished by
MFS/YORK/STORMOR and is of a
different capacity or output then
specifi cations require for this
conveyor
obtain the correct drive
the conveyor’s specifi ed capacity in
terms of volume or cubic footage is
being exceeded
adjust input capacity
the conveyor is being used to handle
a different material than it was
originally specifi ed for
make the needed changes to the conveyor so it
can handle the material or use the conveyor for
another material
uneven sprocket
wear
worn chain
replace chain / see chain section
improper alignment
correct conveyor alignment
material carry-over into discharge
sprocket
check for and correct improperly located inlet
uneven uhmw
paddle wear
conveyor not aligned correctly
correct alignment
sprocket slipped
adjust sprocket and tighten set screws