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1.1 the assembly must be carried out in accordance with the design, process requirements, this regulation and relevant standards.

1.2 the assembly environment must be clean. The assembly environment temperature, humidity, dust prevention, lighting and shockproof of high-precision products must comply with relevant regulations.

1.3 all parts (including purchased and outsourced parts) must have inspection certificates before assembly.

1.4 parts must be cleaned and cleaned before assembly, without burr, flash, scale, rust, chips, sand, dust and oil, and shall meet the corresponding cleanliness requirements.

1.5 parts shall not be bumped, scratched or rusted during assembly.

1.6 parts with wet paint shall not be assembled.

1.7 for relatively moving parts, lubricating oil (grease) shall be added between the contact surfaces during assembly.

1.8 the relative position of all parts and components shall be accurate after assembly.

1.9 in principle, stepping on the machine is not allowed during assembly. Special measures shall be taken when special parts must be operated on the machine