Direction for Use

(1)The manual consists of three parts:exterior check,power-on check and special check.In exterior check,the helicopter is divided into 11 stations.The contents of power-on check are summarized based on the requirements for power-on check on each instrument and device and the practice of units.

(2)The check on each station is illustrated with a picture or pictures in which the names of relative devices are marked.The check on each device shall proceed according to the number marked in front each device.

(3)All devices marked in each picture shall be checked in the current station,unless they are marked by white letters or frames.

(4)Please refer to the explanations after each picture to see the basic working principles,parameters and requirements for the check on each device.The contents above will be explained one by one based on the number marked in front of each device.To facilitate trouble-shooting and wire/linehunting,each device is noted with the type and electric symbol(there are no independent electric symbols for devices on engines as they are treated as a whole).

(5)Due to limited space,only the key points to check will be listed for each device.Please refer to overall requirements and standards for helicopter maintenance to see specific requirements.