RG13II Operation • Maintenance • Parts
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Grease and Oil Buildup - Remove
For cleaning with a hot water cleaning device, use a spray
steam with a pressure not exceeding 426 psi (2937 kPa)
to prevent damage to painted areas of the components.
Lubricate the Fittings
Lubricate the two fittings as shown(1) (One on each cutting
wheel bearing). Slowly add grease until you see new grease
purging out of side bearing. Performing this procedure every
10 hours will prevent debris and moisture from entering and
damaging the bearing.
Lubricating Grease
All Rayco stump cutters are completely serviced at the factory
before shipping. The operator should check all grease fittings
to familiarize himself with their location and acquaint himself
with the correct service schedule.
Use the normal shutdown procedure (See “Operating
Instructions”), before lubricating the machine.
Cutting Wheel - Check
One of the most critical elements of the stump cutter are
the cutting teeth. They are also the most subject to damage
and wear. In the course of cutting stumps they not only make
contact with wood, but also encounter a numerous assortment
of abrasives and objects in the stump’s environment, such as
dirt, stones, and occasionally a large rock or buried scrap.
The loss of and wear of teeth can significantly impair the
efficiency of a stump cutter and also result in overexposure
of other teeth, resulting in premature failure or wear. Therefore
it is important to make frequent observation of the condition
of all of the cutting teeth, and replace or have sharpened any
missing and significantly worn teeth, as soon as feasible.
Read all of the instructions on the following pages before
beginning to change cutting teeth.
Using Rayco Teeth
Rayco Manufacturing Inc. recommends only genuine Rayco
Cutting Tools for use on Rayco Stump Cutters and Forestry
Mowers. The use of non-Rayco cutting tools or cutting
wheels will void the machine warranty. Rayco’s cutting tools,
cutting wheels, and mower rotors are specifically designed
to provide optimum performance in many ways. The use of
non-Rayco parts will compromise this optimum performance.
• Safety: Rayco’s cutting tools are always attached with at
least two fasteners. This redundant fastening system is
far safer than those systems employing only one fastener.
Rayco’s cutting tools are also more visible than some of
the other cutting tools that are available. Some of the
cutting wheels available today are “transparent” which
can lead to an operator or bystander becoming confused
as to the actual limits of the cutter tool.
• Proper Balance: Rayco’s cutting wheels and mower
rotors are designed to achieve a dynamic balance that
avoids vibration. Using other cutting tools can set
up vibrations that will harm the machine’s structure &
reduce bearing life.
• Number of Teeth for Depth of Cut: Rayco’s cutter wheels
are designed to provide an economical cutting wheel
assembly solution. The teeth are spaced to provide a
maximum depth of cut for the number of teeth on the
wheel. Some of the wheels available today use a large
quantity of teeth to get the same depth of cut that a
Rayco wheel will achieve with half the teeth. While the
individual tooth cost may be less, the overall costs are
more. Additionally, having too many teeth in the stump
at any one time can lead to aggressive “grabbing” of the
stump, causing the stump cutter to violently hop. This
can cause injury to both man & machine.
• Tooth Projection: Rayco’s stump cutter teeth are
specifically designed to ensure that the carbide tip can
Maintenance
ACCUMULATED GREASE AND OIL ON A MACHINE
IS A FIRE HAZARD. REMOVE SUCH DEBRIS WITH
STEAM CLEANING OR HIGH PRESSURE WATER.
NOTICE
When cleaning the machine the use of mild soap
and water must be used for the first 90 days. Harsh
cleansers or solvents will strip paint off machine.
After 90 days stronger cleaners may be used.
NOTICE
Pump grease in slowly, and carefully to prevent
damage to the bearing seals. Use extreme caution
when using a high pressure or high volume grease
gun.
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