Checking The Sealed Bearings; Engine Maintenance; Engine Oil Specifications - Toro Reelmaster 3100-D Operator's Manual

Greasing the Bearings and Bushings (continued)

Checking the Sealed Bearings

Bearings rarely fail from defects in materials or workmanship. The most common reason for
failure is moisture and contamination working its way past the protective seals. Bearings that
are greased rely upon regular maintenance to purge harmful debris from the bearing area.
Sealed bearings rely on an initial fill of special grease and a robust integral seal to keep
contaminants and moisture out of the rolling elements.
The sealed bearings require no lubrication or short-term maintenance. This minimizes
routine service required and reduces the potential of turf damage due to grease
contamination. These sealed bearing packages will provide good performance and life
under normal use, but you should periodically inspect the bearing condition and seal
integrity to avoid downtime. Inspect the bearings seasonally and replace the them if they are
damaged or worn. Bearings should operate smoothly with no detrimental characteristics
such as high heat, noise, looseness, or indications of corrosion (rust).
Due to the operating conditions these bearing/seal packages are subject to (i.e., sand, turf
chemicals, water, impacts, etc.) they are considered normal wear items. Bearings that fail
due to causes other than defects in materials or workmanship are typically not covered
under the warranty.
Note:
Bearing life can be negatively affected by improper wash-down procedures. Do not
wash down the machine when it is still hot and avoid directing high-pressure or high-volume
spray at the bearings.

Engine Maintenance

Engine Oil Specifications

Oil Type
Use high-quality, low-ash engine oil that meets or exceeds API service category CH-4 or
higher.
Use the following engine oil viscosity grade:
• Preferred oil: SAE 15W-40 [-17°C (above 0°F)]
• Alternate oil: SAE 10W-30 or 5W-30 (all temperatures)
Toro Premium Engine Oil is available from your authorized Toro distributor in either 15W-40
or 10W-30 viscosity grades.
Crankcase Capacity
Approximately 3.8 L (4.0 US qt) with the filter
Maintenance: Lubrication Page 6–12 3466-297 A