<h2 style="text-align:justify">Maxso X99L Contra-Angle Maintenance Guide</h2>

&nbsp;

Beyes&#39;s own instruction manual devotes more pages to hygienic maintenance than almost any other section; cleaning, disinfection, lubrication, and sterilization are treated as one continuous process, not separate afterthoughts. Here&#39;s that process broken down by frequency.

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After Every Patient

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<ol>
	<li>
	Remove the rotary instrument and detach the handpiece from the motor.
	</li>
	<li>
	Clean and disinfect immediately to flush out blood, saliva, or other liquids before they settle on internal parts.
	</li>
	<li>
	If heavily soiled, pre-clean with disinfectant and a soft cloth first.
	</li>
	<li>
	Manually rinse internal and external surfaces under demineralized water below 38&deg;C, using a brush where appropriate.
	</li>
	<li>
	Remove liquid residue with an absorbent cloth or by blow-drying with compressed air.
	</li>
</ol>

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<h2 style="text-align:justify">Daily Lubrication&nbsp; Non-Negotiable</h2>

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Per Beyes&#39;s own recommended lubrication cycle, the X99L needs oiling:

&nbsp;

<ul>
	<li>
	After every internal cleaning
	</li>
	<li>
	Before each sterilization
	</li>
	<li>
	Or after 30 minutes of use, at least once daily
	</li>
</ul>

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<h2 style="text-align:justify">Weekly Oil Service for the Chuck</h2>

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<ol>
	<li>
	Fit the spray nozzle onto the Beyes Lube spray can.
	</li>
	<li>
	Hold the contra-angle handpiece firmly.
	</li>
	<li>
	Press the nozzle tip firmly into the chuck system.
	</li>
	<li>
	Spray for approximately 1 second.
	</li>
</ol>

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<h2 style="text-align:justify">Test Run After Every Oil Service</h2>

&nbsp;

<ol>
	<li>
	Point the instrument tip/head downward.
	</li>
	<li>
	Run the handpiece for 30 seconds to clear excess oil, starting at minimum speed and increasing to maximum over 5&ndash;10 seconds.
	</li>
	<li>
	Wipe the handpiece with gauze or a soft cloth.
	</li>
	<li>
	If dirt emerges during this process, repeat the full hygienic maintenance cycle.&nbsp;
	</li>
</ol>

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<a href="https://repair.dental/track-repair">Track Your Repair</a>

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			Never Do This

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			<ul>
				<li style="text-align:justify">Beyes&#39;s manual is explicit: never place the handpiece in liquid disinfectant or an ultrasonic bath.</li>
			</ul>

			&nbsp;

			<ul>
				<li style="text-align:justify">Never use a cleaning agent with an ammonium, chlorine, or acid base on the optic outlet; this damages the light-transmitting surface.</li>
			</ul>

			​​​​​​​

			<ul>
				<li style="text-align:justify">For disinfectants generally, avoid anything containing chlorine; in the USA, use EPA-registered surface disinfectants specifically.</li>
			</ul>
			</th>
		</tr>
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</table>

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<h2 style="text-align:justify">Cleaning the Optic Outlet</h2>

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<ul>
	<li>
	Clean using isopropyl alcohol or another approved disinfection agent.
	</li>
	<li>
	Blow dry with an air syringe or dry carefully with a soft cloth.
	</li>
	<li>
	Visually inspect after every cleaning to check for scratches.
	</li>
</ul>

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<h2 style="text-align:justify">Sterilization</h2>

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Beyes recommends sterilization per EN 13060, Class B. The minimum holding time is 3 minutes at 134&deg;C (273.2&deg;F), whether using a pre/post vacuum Class B sterilizer or a Class S sterilizer explicitly approved by its manufacturer for handpiece/contra-angle sterilization. Wrap the handpiece and accessories per EN 868-5 before sterilizing, and only remove and store dry, dust-free sterile goods.

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<h2 style="text-align:justify">Mistakes to Avoid</h2>

&nbsp;

<ul>
	<li>
	Skipping daily lubrication because the schedule is tight; this is the step most tied to premature chuck and bearing wear.
	</li>
	<li>
	Using an ultrasonic bath or liquid immersion instead of the specified manual cleaning method.
	</li>
	<li>
	Cleaning the optic outlet with a chlorine, ammonium, or acid-based product.
	</li>
	<li>
	Skipping the post-lubrication test run, which is what actually clears excess oil before the handpiece goes back into use.&nbsp;&nbsp;
	</li>
</ul>

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<h2 style="text-align:justify">What Practices Are Saying</h2>

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			★★★★★&nbsp; Following the weekly chuck oil service step exactly as written cut our bur-retention complaints down to almost nothing.

			&nbsp;

			&mdash; Sterilization Coordinator, Group Dental Practice
			</td>
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			★★★★★&nbsp; We didn&#39;t realize how specific the cleaning agent restrictions were until we damaged an optic outlet with the wrong disinfectant. Wish we&#39;d read the manual first.

			&nbsp;

			&mdash; Dental Hygienist, Family Dental Clinic
			</td>
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<h2 style="text-align:justify">FAQs</h2>

&nbsp;

Can I put the Maxso X99L in an ultrasonic cleaner?

No, Beyes&#39;s manual explicitly states never to place the handpiece in liquid disinfectant or an ultrasonic bath.

&nbsp;

How often does the chuck specifically need oiling, separate from general lubrication?

Weekly, using the dedicated chuck oil service procedure with the spray nozzle attachment; this is in addition to the daily lubrication cycle.

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Official daily lubrication, cleaning, and sterilization steps for the Beyes Maxso X99L electric contra-angle.

Maxso X99L Contra-Angle Maintenance Guide | Repair.Dental