[Machine] There is no obligation on you to wash your deceased with a specific washing. Indeed, your deceased is a believer who is pure and not impure. It is sufficient for you to wash your hands. This has been narrated as a raised Hadith and its elevation is not valid.
لَيْسَ عَلَيْكُمْ فِي غُسْلِ مَيِّتِكُمْ غُسْلٌ إِذَا غَسَّلْتُمُوهُ إِنَّ مَيِّتَكُمْ لَمُؤْمِنٌ طَاهِرٌ وَلَيْسَ بِنَجَسٍ فَحَسْبُكُمْ أَنْ تَغْسِلُوا أَيْدِيكُمْ وَرُوِيَ هَذَا مَرْفُوعًا وَلَا يَصِحُّ رَفْعُهُ