Greasing The Bearings - Toro ProCore SR54 Operator's Manual

Figure 44
1. Coring head eyelet

Greasing the Bearings

Service Interval: Every 50 hours
The main working bearings of the aerator are sealed
and require no maintenance or lubrication. This
reduces the maintenance required and eliminates the
risk of grease or oil being dropped onto the turf.
There are grease fittings that must be lubricated with
an SAE multipurpose, high-temperature grease with
high-pressure (EP) performance or SAE multipurpose
lithium grease.
The lubrication points are as follows:
PTO shaft (3) (Figure 45)
Figure 45
Roller bearings (2 or 4, depending on model)
46)
O-ring chain — Do not lubricate the chain.
Important:
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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 periodic inspections of bearing
condition and seal integrity should be conducted to
avoid downtime. Inspect these bearings seasonally
and replace them if they are damaged or worn.
Bearings should operate smoothly with no detrimental
characteristics such as high heat, noise, looseness
or rust weeping.
Due to the operating conditions that 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 other than defects in
materials or workmanship are typically not covered
under warranty.
Note:
Bearing life can be negatively affected
by improper wash down procedures. Do not use
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high-pressure or high volume spray directly at the
bearings.
It is common for new bearings to purge some grease
out the seals on a new unit. This purged grease turns
(Figure
black in color due to collection of debris and not due
to excessive heat. Wipe this excess grease from
the seals after the initial 8 hours. There may always
appear to be a wet area around the seal lip. This is
not detrimental to bearing life, but keeps the seal lip
lubricated.
30
Figure 46
Bearings rarely fail from defects in
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