Dear Sir,the procedure is as follow

Dear Sir,
the procedure is as follows:
Setup the valves EYL 21.8 and EYL 21.9 to the emergency mode(according to the operation manual).
Same with the steering valve EYL20/22.
Open valve assembly no 131.
Open valve no 19.
Close valve no 21.
Now, you can move the pin, by press on the caps at valve EYL20/22.

ผลลัพธ์ (อังกฤษ) 3:

Dear Sir,
the procedure is as follows:
the valves EYL Setup EYL 21.8 and 21.9 to the emergency mode (according to the operation manual) .
Same with the steering valve EYL 20/22.
Open valve assembly no 131.
Open valve no 19.
Close valve no 21.
Now, you can move the PIN, press on the caps by EYL valve at 20/22.