Woodstock W1678 instruction manual Long grooves

OPERATION

Troubleshooting

(Continued)

SYMPTOM	POSSIBLE REASON	HOW TO REMEDY
The feed	The conveyor belt tension is incorrect.	Adjust the conveyor belt tension.
conveyor	The conveyor belt tracking is incorrect.	Adjust the conveyor belt tracking.
belt stops
or chatters.
The sanded	The sandpaper is worn out.	Replace the sandpaper.
surface is	The drums are only applying light pressure	Increase the sanding pressure on the workpiece
glazed and
shiny.	against the sanded surface.	surface.
Long grooves	The sandpaper is damaged or uneven-bald wear	Replace the sandpaper.
or high spots	in certain areas.
on sanded	The sandpaper is unevenly crushed into the	Remove and rewrap the sandpaper on the drums.
surface.	hook-and-loop wrapping on the drums.
The wood	The feed conveyor belt is slippery with sawdust	Clean or replace the feed conveyor belt.
slips on the	or the surface is worn.
feed	Too much material is being removed in one	Reduce the sanding load, and adjust the drums
conveyor
belt.	pass.	and pressure rollers.
The left and	The drums are applying too much sanding force	Reduce the force the drums are applying on
right edges	on the workpiece and the free edges of the	the workpiece surface.
on wood are	sandpaper are rolling over the edges.
rounded.
The wood	The drums are not square to the table.	Adjust the drums and pressure rollers.
thickness is
uneven	The sandpaper is worn or clogged unevenly	Clean or replace the sandpaper.
from	from side-to-side.
side-to-
side.
Snipe is	Lack of outfeed or infeed support is causing the	Use roller tables and support the infeed and
evident on	snipe.	outfeed of the workpiece.
the ends of	The drum height and the pressure roller	Adjust the drums and pressure rollers.
the wood.
	spring tension are incorrect.
The	The sandpaper grit is too fine or is worn out.	Replace the sandpaper.
sandpaper
clogs too	Too much wood is being removed at once.	Reduce the load on the sanding drums.
quickly.
	The wood is wet, oily, or dirty.	Sand only dry and clean wood.
	The dust collection system is insufficient.	Service the dust collection system or increase
		the duct collector system efficiently.
The	The drums are not sanding parallel to direction	Adjust the drums and pressure rollers.
sandpaper	of conveyor belt feed.
tears.	Drums are not square with the table.	Adjust the drums and pressure rollers.
	Sandpaper edges have overlapped or tape	Wrap sandpaper on drums correctly and use a
	has slipped.	heavy-duty tape.
	Too much wood is being removed at once.	Reduce the load on the sanding drums.

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