There is 1 specially designed wide (420mm) manhole cover in each eye of the machine for loading and unloading the fabric. Our wide, specially designed manhole covers are also used as operator entrance covers. There are 2 safety locks, mechanical and electronic, on the manhole cover. There is a special tempered sight glass resistant to heat and impacts and a stainless steel protection apparatus that protects this glass. Lid sealing gaskets are le as de and wear resistant.