<h2 style="text-align:justify">W&amp;H Synea Fusion WG-67 LT Repair: When Reciprocating Performance Starts to Change 
&nbsp;</h2>

A W&amp;H Synea Fusion WG-67 LT does not have to stop moving before it needs repair. With a reciprocating handpiece, a developing problem can first appear as a change in the way the tip moves, an unusual sound, reduced polishing efficiency, vibration, heat, or a tip that no longer feels secure. The WG-67 LT is a 2:1 Profin&reg; reciprocating contra-angle with a 1.1 mm stroke, single spray and compact glass-rod illumination. It is designed for Dentatus tips and applications including excess-material removal, pre-polishing, fine polishing, and interdental or subgingival work. That makes its repair needs somewhat different from a conventional rotary contra-angle. 
&nbsp;

If the movement no longer feels like it normally does, <a href="https://repair.dental/services/handpiece-repair/w-and-h-dental-handpiece-repair">W&amp;H handpiece repair service</a> is the right place to start rather than repeatedly testing the instrument chairside. 
&nbsp;

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<h2 style="text-align:justify"> 
The First Warning Is Often a Change in Feel 
&nbsp;</h2>

A clinician who uses the WG-67 LT regularly develops a sense of what normal operation feels like. 
&nbsp;

That makes these changes worth noticing: 
&nbsp;

<table align="center">
	<thead>
		<tr>
			<th style="text-align:justify">
			What changed?
			</th>
			<th style="text-align:justify">
			Why it matters
			</th>
		</tr>
	</thead>
	<tbody>
		<tr>
			<td style="text-align:justify">
			Reciprocating movement feels rough
			</td>
			<td style="text-align:justify">
			Possible mechanical wear
			</td>
		</tr>
		<tr>
			<td style="text-align:justify">
			New vibration
			</td>
			<td style="text-align:justify">
			Tip, chuck, drive or internal component issue
			</td>
		</tr>
		<tr>
			<td style="text-align:justify">
			More noise than usual
			</td>
			<td style="text-align:justify">
			Possible wear in the drive mechanism
			</td>
		</tr>
		<tr>
			<td style="text-align:justify">
			Tip feels less secure
			</td>
			<td style="text-align:justify">
			Retention/chuck problem
			</td>
		</tr>
		<tr>
			<td style="text-align:justify">
			Polishing takes longer
			</td>
			<td style="text-align:justify">
			Tip, movement or drive performance may have changed
			</td>
		</tr>
		<tr>
			<td style="text-align:justify">
			Handpiece becomes unusually warm
			</td>
			<td style="text-align:justify">
			Friction, lubrication or mechanical issue
			</td>
		</tr>
		<tr>
			<td style="text-align:justify">
			Light becomes weak
			</td>
			<td style="text-align:justify">
			Connection or optical issue
			</td>
		</tr>
	</tbody>
</table>

 
One symptom alone does not identify the failed component. The useful information is what changed and whether several symptoms appeared together. 
&nbsp;

If you are already noticing a combination of vibration, noise and reduced performance, <a href="https://repair.dental/repairguru/handpieces">RepairGuru handpiece services</a> can help move the problem from chairside observation to professional evaluation. 
&nbsp;

<h2 style="text-align:justify">Don&#39;t Blame the Tip Too Quickly 
&nbsp;</h2>

Because the WG-67 LT works with specific Dentatus tips, the first repair question should be: 
&nbsp;

Does the problem follow the tip, or does it stay with the handpiece? 
&nbsp;

Try the appropriate known-good tip according to the manufacturer&#39;s instructions. If the new tip performs normally, the original tip may have been contributing to the problem. If several appropriate tips produce the same unusual movement or vibration, the handpiece deserves closer attention. A secure tip is particularly important during precision polishing. Do not compensate for poor retention by applying additional force. 
&nbsp;

<h2 style="text-align:justify">A Reciprocating Handpiece Should Not Be Treated Like a Rotary One 
&nbsp;</h2>

The WG-67 LT&#39;s movement is intentionally reciprocating rather than continuous rotary motion. 
&nbsp;

That means a new change in movement quality can be a useful diagnostic clue. 
&nbsp;

Watch for: 
&nbsp;

<ul>
	<li>
	Rough or irregular movement
	</li>
	<li>
	Increased vibration
	</li>
	<li>
	Unexpected resistance
	</li>
	<li>
	Unusual mechanical noise
	</li>
	<li>
	Reduced efficiency despite a suitable tip
	</li>
	<li>
	Heat that was not previously present 
	&nbsp;
	</li>
</ul>

If the problem persists after the obvious tip and connection checks, professional inspection is more useful than repeated chairside testing. 
&nbsp;

Repair.Dental&#39;s <a href="https://repair.dental/services/handpiece-repair/w-and-h-dental-handpiece-repair">W&amp;H dental handpiece repair service</a> covers common mechanical problems such as vibration, bearing wear, chuck problems, overheating and other handpiece failures. 
&nbsp;

<h2 style="text-align:justify">What About the Light? 
&nbsp;</h2>

The LT designation matters because this model includes a compact glass rod for illumination. A mechanical problem and an illumination problem can occur independently. If the handpiece still reciprocates normally but the treatment field suddenly appears darker, check the connection and optical area according to W&amp;H&#39;s instructions. If the light remains abnormal after basic checks, include that information in the repair request. 
&nbsp;

The technician should know whether the complaint is: 
&nbsp;

mechanical + optical 
&nbsp;

or 
&nbsp;

optical only. 
&nbsp;

That distinction can make the initial assessment more useful. 
&nbsp;

<h2 style="text-align:justify">Repair or Keep Using It? 
&nbsp;</h2>

A developing problem deserves attention when it becomes repeatable. 
&nbsp;

<h3 style="text-align:justify">Arrange professional assessment when: 
&nbsp;</h3>

<ul>
	<li>
	Vibration continues with suitable tips
	</li>
	<li>
	The handpiece produces new grinding or rattling sounds
	</li>
	<li>
	Tip retention becomes unreliable
	</li>
	<li>
	Performance drops without an obvious tip-related cause
	</li>
	<li>
	Heat increases noticeably
	</li>
	<li>
	The reciprocating action feels different
	</li>
	<li>
	Illumination remains abnormal after basic checks 
	&nbsp;
	</li>
</ul>

Don&#39;t wait for complete failure simply because the handpiece still operates. 
&nbsp;

If your WG-67 LT is showing persistent symptoms, <a href="https://repair.dental/services/handpiece-repair/w-and-h-dental-handpiece-repair">request W&amp;H handpiece service</a> and describe exactly what changed. You can also contact Repair.Dental through the available <a href="https://repair.dental/contact">contact options</a> to discuss the problem before sending the instrument. 
&nbsp;

<h2 style="text-align:justify">Give the Repair Team Better Information 
&nbsp;</h2>

Instead of writing: 
&nbsp;

&ldquo;WG-67 LT not working.&rdquo; 
&nbsp;

Give the technician something actionable: 
&nbsp;

&ldquo;The handpiece still reciprocates, but vibration has increased and polishing performance has dropped when using more than one tip.&rdquo; 
&nbsp;

Also include: 
&nbsp;

<ul>
	<li>
	Model: WG-67 LT
	</li>
	<li>
	Tip being used
	</li>
	<li>
	Whether another tip was tested
	</li>
	<li>
	Whether vibration is present
	</li>
	<li>
	Whether the handpiece becomes warm
	</li>
	<li>
	Whether the sound has changed
	</li>
	<li>
	Whether illumination is affected
	</li>
	<li>
	When the problem first appeared 
	&nbsp;
	</li>
</ul>

That turns a vague repair request into a useful diagnostic starting point. 
&nbsp;

For general guidance before sending a handpiece, <a href="https://repair.dental/repairguru/handpieces/simple-dos-and-donts-for-handpiece-care">RepairGuru&#39;s handpiece care resources</a> can also help identify whether the problem may be related to routine handling. 
&nbsp;

<h2 style="text-align:justify">Don&#39;t Wait for the Movement to Stop 
&nbsp;</h2>

A reciprocating handpiece can continue operating while a mechanical problem is developing. 
&nbsp;

The important question is not: 
&nbsp;

&ldquo;Does it still move?&rdquo; 
&nbsp;

It is: 
&nbsp;

&ldquo;Does it still move the way it should?&rdquo; 
&nbsp;

If the answer has changed, stop compensating with more pressure or repeated testing. Use the <a href="https://repair.dental/services/handpiece-repair/w-and-h-dental-handpiece-repair">W&amp;H repair service</a> or contact Repair.Dental through chat/WhatsApp to discuss the next step. 
&nbsp;

Early professional assessment can help determine whether the WG-67 LT needs routine servicing, component repair, or a more detailed mechanical inspection.

&nbsp;

<hr />
For more insights on professional dental equipment repair, please visit&nbsp;<a href="https://repair.dental/">Repair.Dental</a> or follow us on&nbsp;<a href="https://www.facebook.com/repair.dental">Facebook</a> &amp;&nbsp;<a href="https://www.instagram.com/repair.dental/">Instagram</a>.

Learn how to identify WG-67 LT repair problems, including vibration, unusual noise, heat, reduced performance, and illumination issues.