Wilton FK350-2SX, FK350-4 manual Troubleshooting Blade and Cutting Problems

Troubleshooting

Troubleshooting – Blade and Cutting Problems

Problem	Probable Cause	Solution
	Incorrect lubricant/coolant fluid	Ensure proper coolant flow.
	Material too hard	Check the cutting speed, feed speed and air pressure
		parameters and the type of blade you are using.
		With a new blade it is necessary to start cutting at half
		feeding speed. After the wearing--in period (a cutting
	Disc not worn--in correctly	surface of about 300 cm2 for hard materials and about
		1000 cm2 for soft materials) the cutting and feed
		speeds can be brought up to normal values
Teeth breaking	Disc with excessively fine	The swarf wedges into the bottom of the teeth causing
	tooth pitch	excessive pressure on the teeth themselves
		The surface of the cut may have undergone work
	New blade inserted in a	hardening. When starting work again, use a lower
		cutting speed and head feed speed. A tooth from the
	partially completed cut
		old blade may be left in the cut: check and remove
		before starting work again.
	Work piece not clamped firmly	Any movement of the work piece during cutting can
		cause broken teeth: check the vise, jaws and clamping
	in place
		pressure.
	Feed speed too slow	The blade runs over the material without removing it:
		increase feed speed.
	Cutting pressure too high	Reduce cutting pressure.
	Blade speed too high	The teeth slide over the material without cutting it:
		reduce the blade speed.
Rapid tooth wear	Insufficient coolant	Check the coolant level and clean coolant lines and
		nozzles.
	Incorrect fluid concentration	Check and use the correct concentration.
		The materials may present altered zones either on the
		surface, such as oxides or sand, or in section, such as
	Material defective	under-cooled inclusions. These zones, which are
		much harder than the blade, cause the teeth to break:
		discard or clean these materials.
	Feed speed too high	Reduce blade speed.
	Teeth in contact with material	Always check the position of the blade before starting
Broken blade	before starting the cut	a new job.
	Insufficient coolant	Check the coolant level and clean coolant lines and
		nozzles.

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