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9.7 Furnace Cover，Electrode Rotating Mechanism and Furnace Cover Lifting Mechanism
Ⅰ Dominant Items
9.7.1 The tightening force to connect bolts of rotary portal frame shall comply with the requirement of the design technical document.
Quantity to be checked:100%.
Inspection method:Observe，check with a torque wrench，and check the record of tightening force.
Ⅱ General Items
9.7.2 The allowable deviation for installation of furnace cover，electrode rotating mechanism and furnace cover lifting mechanism shall comply with the requirements in Table 9.7.2.
Quantity to be checked:100%.
Inspection method:See Table 9.7.2.
Table 9.7.2 Allowable deviation for installation of furnace cover，electrode rotating mechanism and furnace cover lifting mechanism
