Polar 66 knife is not up dead centre

Good morning guys,
Can you please help me for my polar 66, machine are not running because we encountered an error for machine knife is not up dead centre, How can I fix it,

thank you!!!

 

Hi sir:

1) Lo0k first in the electronic board SK66 Leds Red: V83 SB +V84 y27+ K1M For cutting + clamping =OFF +V71 Led YELLOW ,K1M IN RESTING POSITION =ON +24Vdc

2) However you must sure that Knife is the Higher position UP, turn manually untill is there UP max.

3) look MHS66 knife uptroke control monitoring .

4) look in the electronic board SKU, if the LEDs are ON: PR + MS , when you press the CUT buttons