Quadivator ST50 Assembly/Operators/Parts Manual page 28

8.5 Replacement of the Scraper Blade
The scraper blade is located on the front of the ST50 Snow thrower housing.
The scraper blade, Part # 89246 can be reversed for longer life!
8.6 Replacement of the Skid Shoes
The skid shoes are located on either end of the ST50 Impeller Housing
Bolts along the scraper blade are
removed – they are Carriage Bolts –
¼ x 5/8 Gr5 ZP.
Skid Shoe – located on either
side of the ST50 Impeller
Housing!