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Sincerely appreciate your purchasing of Wannan Motor.
Please read the instruction carefully before usage so as to ensure that the motor is correctly used 

and maintained.

Warning! 

Be careful when carry the motor, otherwise strong falling, impact or 

vibration will cause the bearing severe damaged. Fasten onto the lifting hook tightly 
as the motor is moved by the crane.

1. Overview

This motor can be used in the circumstance of high altitude. The plateau code G1, G2, G3, G4, G5 

can be sorted according to the applicable altitude of the motor:

Altitude Range

Plateau Code

Reference Model

1000

1999m

G1

Y2-112M-4-G1

2000

2999m

G2

Y2-112M-4-G2

3000

3999m

G3

Y2-112M-4-G3

4000

4999m

G4

Y2-112M-4-G4

5000

5999m

G5

Y2-112M-4-G5

2. Inspection

2.1 Check the appearance of the motor to see if there is outer damage or not and check nameplate 

data  like model, rated voltage, frequency etc. to see whether all is conform to actual requirement.

2.2 Rotate the motor shaft by hands to see whether the rotation is flexible and smooth (Tip: The 

IP55 motors with frame style rubber oil seal rotate a little harder.)

2.3 Ensure that all parts in the motor are tightly and in good assembling.

2.4 Remove the terminal box cover, and measure the insulation resistance of the motor winding 

with 500V Meg-ohmmeter. The value should be not less than 5MΩ. For the motor which has the 

requirement of preventing dew, the user should keep the power at rated voltage passing through heat 
for 30 minutes before the motor get start to operate, with the aim to ensure that there is no dew inside.

Notice:

Any question during inspection please contact us or consult the technician.

3. Installation

3.1 The motor should be installed by technicians. For the motor with feet, all the feet should be 

fixed to the same plane that is sound and flat. If spacer must be added to the feet, these spacers should 

be guaranteed not to be forced out during the installation and fastening. Coupling, gear, belt pulley can 
be used for transmission.

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