Please capitalize where necessary: a small grub screw locks the gearbox axle into place, spinning it. it readily works itself loose and must be tightened with a hex wrench, included in the gearbox kit.
A: A small grub screw locks the gearbox axle into place, spinning it. It readily works itself loose and must be tightened with a hex wrench, included in the gearbox kit.

Please capitalize where necessary: swivel caster with brake, Ø 100mm, vulcanized elastic rubber tires, 150kg
A: Swivel caster with brake, Ø 100mm, Vulcanized elastic rubber tires, 150KG

Please capitalize where necessary: superenalotto numbers - saturday 14 may 2016 - lotteries
A: SuperEnalotto numbers - Saturday 14 May 2016 - Lotteries

Please capitalize where necessary: if the price is still too high for you, you should probably go camping in the woods.
A:
If the price is still too high for you, you should probably go camping in the woods.