Step 4
1. Use 3 pcs 1/4"*14 Philips thumb head screw with anti-slip design (Part
#71) to install Back panel A welding assembly (Part # 63) to bottom base
welding assembly (Part # 49);
2. Use 3 pcs 1/4"*14 Philips thumb head screw with anti-slip design (Part
#71) to connect Back panel A welding assembly (Part # 63) with Part # 46
and # 61