Tennant/Nobles - 4018131 - Spring, Cmpr, 0.90Od .04Wir 02.0L (Replaces Tennant 387500)

Tennant 4018131 is a compression spring, 0.90 in (22.9 mm) in outside diameter, 0.04 in (1.0 mm) wire and 2.0 in (51 mm) long, also listed as 387500.

Two go in the rear squeegee group of the Tennant M20, M30 and T20, next to mounting ring 4018105. The 7300 and 8300 use it in the Max Pro 1000 rear squeegee kit, which is 4022270 on earlier serials and 4011791 on later ones; the spring is the same in both. Tennant's M20 manual lists a check of rear squeegee leveling every 100 hours and of blade deflection daily or when you change floor types. Genuine Tennant, sold each.