Toro OFZ Mower 100-5842 Installation Instructions
![Toro OFZ Mower 100-5842 Gearbox manual cover](/images/ETWavIoVAbfYWhTvxTkdmKoK/thumbs/thumb175x175.webp)
Use SAE 90 gear oil for optimal performance in the Toro OFZ Mower 100-5842 gearbox.
Change the gearbox oil every 100 hours of operation or at least once per season, whichever comes first.
Signs of gearbox failure include unusual noises, difficulty in shifting gears, and oil leaks.
To check the oil level, remove the oil fill plug on the gearbox and ensure the oil is at the bottom edge of the plug hole.
Inspect the gearbox for cracks and check seals and gaskets for damage. Replace any faulty components and refill the oil.
Regular maintenance, including timely oil changes and checking for leaks, will improve the gearbox's lifespan. Avoid overloading the mower.
Minor issues like seal and gasket failure can often be repaired. For significant damage, consider replacing the gearbox.
You'll need a wrench to remove the drain and fill plugs, an oil catch pan, and a funnel for adding new oil.
Remove any protective covers or panels around the gearbox. Consult the owner's manual for specific instructions.
Grinding noises may be due to low oil levels, worn gears, or damaged bearings. Inspect and service the gearbox as necessary.