Lubricating Grease; Cold Weather Lubricants - Rayco Super Jr RG27 Operator, Service, Maintenance Manual

Lubricating Grease

All Rayco products are completely serviced at the factory before shipping. The operator should check all grease fittings to
familiarize with the location and correct service schedule plan.
Use the normal shutdown procedure (See "Operating Instructions"), before lubricating the machine.
Apply grease using a standard low pressure/low volume grease gun. Do not use a pneumatic grease gun.
Lubricate with a high quality NLGI No.2 multipurpose bearing grease having rust inhibitors, good water resistance, antioxidant
additives, and a minimum viscosity of 150 cSt at 40°C and suitable to operate continuously at 212°F / 100°C or higher.
Rayco recommends the following bearing grease that meets this spec:
Chevron Delo EP2................189 cSt @ 40°C / 17.5 cSt @ 100°C / Temp range -40°C to 177°C (-40°F to 350°F)
Texaco Multifak EP2.............173 cSt @ 40°C / 15.6 cSt @ 100°C / Temp range -34°C to 121°C (-30°F to 250°F)
Citgo Premium Lithium EP2....173 cSt @ 40°C / 14.9 cSt @ 100°C / Temp range -15°C to 121°C ( 5°F to 250°F)
Shell Alvania EP2.................189 cSt @ 40°C / 15.6 cSt @ 100°C / Temp range -20°C to 100°C ( -4°F to 212°F)
Note: for extreme cold temperature areas a No. 0 grade grease may be used.
Before lubricating make sure all grease fittings and the nozzle of the grease gun is clean.

Cold Weather Lubricants

Before attempting to start the engine, make sure that the oil in the engine, the transmission and the hydraulic system are
fluid enough to flow. Check the oil by removing the dipsticks. If the oil will drip from the dipstick, then the oil is fluid enough
to start the engine. Do not use oil that has been diluted with kerosene. Kerosene will evaporate in the engine.
If the viscosity of the oil is changed for colder weather, also change the filter element. If the filter is not changed, the filter
element and the filter housing can become a solid mass. Drain all hydraulic cylinders and lines. After you change the oil,
operate the equipment in order to circulate the thinner oil.
If continuous ambient operating temperatures are below -10°C (+14°F), oil change intervals should be increased. Consult
the Engine Operator Manual for details.
When you start an engine or when you operate an engine in ambient temperatures that are below -20°C (-4°F), use base
oils that can flow in low temperatures. These oils have lubricant viscosity grade of SAE 0W or SAE 5W.
When you start an engine or when you operate an engine in ambient temperatures that are below
-30°C (-22°F), use a Synthetic base stock multigrade oil. The oil should have lubricant viscosity grade of 0W or 5W. Use
an oil with a pour point that is 5-10 degrees lower than the coldest ambient temperature.
Hydraulic and track drive oil should meet all previous specifications and have a pour point at least 7.8°C (14°F) lower than
the coldest expected ambient temperature.
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RG27/35/37 Operation • Service • Maintenance
Specifications
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