Key Master Plus Manual 2019 V1.0
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2. If the golden key is not upright after returning to the position, please correct it according to the
following method, loosen the three fixing screws of the fixed key, adjust the key to the vertical
direction and then re-fix it;
3. The looseness of the screw of the push rod assembly or the deterioration of the key angle will
have a certain impact on the accuracy of the operation. Please check and maintain the push rod
assembly regularly (such as weekly) to tighten the loose parts.
4. Check and maintain the gears, bearings or slides of each moving part regularly (such as weekly),
and add a little lubricant;
5. Check if each sticker is correctly pasted, or if it is ambiguous;
6. Check if the casters are properly braked and the top rod is properly tightened;
7. Check if the speaker screw is loose, check if the light box is tight;
8. Check if the screws that fix the parts are loose, check if the connectors are loose, and if the
terminals are off;
9.3 Maintenance Precautions
1. When performing maintenance, be sure to turn off the power to prevent injury or electric shock
from the operator or others;
2. When carrying out the work not mentioned in this manual, please be sure to consult our
after-sales service center and follow the instructions to reply to the operation;
3. Please use the company's designated products for consumables and repair parts;
4. Even if the main power supply is cut off, the power board and the inside of the display are still in
a high temperature and high pressure state. If it is hit, there is a danger of burns and electric shock.
Risk, please be careful not to touch the electronic components;
5.When replacing parts and plug connectors, be sure to cut off the main power supply;
