669、There is sufficient oil in the tank.

819.Once designed and approved, the establishment of thorough maintenance procedures is a must. 一旦设计和批准，建立彻底的维护程序是必须的。

818.once designed and approved, the establishment of thorough maintenanceprocedures is a must.

817.If you find a crack, do the applicable repair procedure.

816、如果你发现了裂纹，进行相应的修复程序。

815.Documents must be readily revisable

814、文件必须易于修改。I

813."Maintenance Practices “which are a combination of removal/installation, adjustment/test, inspection/check, cleaning/painting, and approved repairs should follow the Troubleshooting Section.

812、Remove the four screws that attach the flange to the cover.

811、Find the cause of the incorrect indication.

810、 每一节应从右侧页面开始。