Sealed Bearings - Toro 03170 Operator's Manual

Note: If desired, install an additional grease fitting
in the other end of the steering cylinder. Remove the
tire, install the fitting, grease the fitting, remove the
fitting, and install the plug (Figure 58).

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 will 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 periodic inspections of bearing condition and seal
integrity should be conducted to avoid downtime. These
bearings should be inspected seasonally and replaced if
damaged or worn. Bearings should operate smoothly
with no detrimental characteristics such as high heat,
noise, looseness, or indications of corrosion (rust).
Figure 57
Figure 58
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 unit when it is still hot and avoid directing
high-pressure or high volume spray at the bearings.
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