Mindray DC-68, Руководство по обслуживанию

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Care and Maintenance 12-5
2. Monitor cleaning (touch screen)

Tool: dry soft cloth, clean water and soap-suds.

Method:
Use dry clean soft cloth to clean monitor and touch screen. If there are any stains, use dry soft cloth
or mild soap-suds to clean to clean off. Then, air dry it.
3. Trackball cleaning

Tool: tissue, dry soft cloth, mild soap-suds

Disassembling the trackball:
Press the bulges on the clamping ring by both hands and turn the ring about 35°
counterclockwise until it lifts. Take out the ring and the rotary ball. Be careful not to drop the ball.
As shown below
：

Cleaning:
Clean the two long shafts, the bearing, plastic cover and the internal area of clamping ring (see
the illustration below) with clean soft dry cloth or tissue.

Restoration installation:
Put the rotary ball back in the trackball mechanism and put the clamping ring back in, turn the
ring clockwise until the bulges are flush with the top cover, and the ring clicks and locks, which
means the ring is secured. See the illustrations below.
Bearing
Long shaft
Long shaft
Clamping ring
Top cover
Rotary ball