112
Maintenance and Operation Steps for Situation 1:
Materials:
• Rag
• Water
• Alcohol or other non-corrosive detergent
Figure Step
1. Clean the smudginess on
the surface using a rag (or oth-
er cleaning tool) with water
2. If the smudginess cannot be
cleaned by water, use 97% al-
cohol until the surface is clean
enough. (Or try other local fre-
quently-used non-corrosive
detergent)
Maintenance and Operation Steps for Situation 2:
Materials:
• Abrasive paper
• Rag
• Water
• Alcohol
• Hairbrush
• Paint
12 Routine Maintenance System Manual