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Important:
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 rust weeping.
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 other than defects in
materials or workmanship are typically not covered
under warranty.
Note:
Bearing life can be negatively affected by
improper washing procedures. Do not wash the unit
when it is still hot and avoid directing high-pressure or
high-volume spray at the bearings.
It is common for new bearings to purge some grease
out of the seals on a new machine. This purged
grease will turn black in color due to collection of
debris and not due to excessive heat. It is good
practice to 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 generally
not detrimental to bearing life, but keeps the seal lip
lubricated.
Coring head bearing replacement is suggested at
intervals of 500 hours. A bearing service kit which
covers the complete coring head is available from
your distributor.
Checking the Gearbox
Lubrication
Service Interval: Every 100 hours
The gearbox is filled with 80W-90 gear oil or
equivalent. Allow the gearbox to cool before checking
the lubrication.
1.
Clean debris from the fill plug and check the plug
to avoid contamination.
2.
Remove the check plug from the gearbox
(Figure
31).
1. Fill plug
2. Check plug (rear of
gearbox)
3.
Make sure that the oil level is up to the bottom of
the check plug hole in gearbox
4.
If the oil level is low, remove the fill plug from the
gearbox and add oil as required.
5.
Install the plugs.
Changing the Gearbox
Lubrication
Service Interval: After the first 8 hours
Every 250 hours
The gearbox is filled with 80W-90 gear oil or
equivalent.
1.
Clean debris from the fill plug and the drain cap
to avoid contamination
2.
Remove the fill plug to relieve air draw.
3.
Position a drain pan under the drain tube and
remove the drain cap.
Note:
The high viscosity of cool oil extends the
drain time (approximately 30 minutes).
4.
After oil is completely drained, install the drain
cap.
5.
Fill the gearbox with 1650 ml (56 fl oz) of high
quality 80W-90 gear lube.
6.
Install the fill plug.
7.
Check the oil level.
28
Figure 31
3. Drain plug
(Figure
(Figure
31).
g007312
31).
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