forklift still need cange hours

[diga1]

hello
here i have forklift still r70-70 y2012
and need to cange hurs current walue is 16440h and need 9440h
inside i found 27c512 plc32 and read it can someone calculate hours for me pls
file in attachment

[tech_cz]

Think.
How could be mh in EPROM 27C512?
It is not eeprom nor flash.

WBR, Marek

[mikroel]

check if you have 24c256 or 24c512 on PCB