Rayco Lubrication & Fluid Specifications; Engine Fuel; Hydraulic Oil (Petroleum-Mineral Base); Biodegradable Hydraulic Oil - Rayco Super Jr RG27 Operator, Service, Maintenance Manual

RG27/35/37 Operation • Service • Maintenance
Specifications
RAYCO LUBRICATION & FLUID SPECIFICATIONS
Engine Oil
During the initial break-in period, the engine will consume more oil than usual.
Check the engine oil level daily.
See the Engine Operator Manual for engine oil specifications.

Engine Fuel

See the Engine Operator Manual for engine fuel specifications.
USE ULTRA LOW SULFUR PREMIUM DIESEL FUEL ONLY.

Hydraulic Oil (Petroleum-Mineral Base)

Your Rayco machine is filled at the factory with Conoco Powerflow AW HVI 46 Hydraulic Fluid. This oil is formulated to
provide the proper operating characteristics in a wide range of climates. When refilling, always use Conoco Powerflow AW
HVI 46 or one of the recommended brands below. Failure to use the proper hydraulic oil can lower performance and shorten
the life of critical components. Do NOT mix different types of hydraulic fluids!
Rayco's oil specifications address the following concerns:
• High-temperature viscosity
• Low-temperature flow properties
• Viscosity lifespan
• High-pressure wear characteristics
• Filterability
• Multi-metal compatibility in the presence of water
Rayco recommends the following hydraulic oils for your Rayco machine:
Conoco-Phillips MegaFlow AW HVI 46............ Viscosity 6.8 cSt @ 100°C / 46 cSt @ 40°C / Pour -37°C (-35°F)
Shell Tellus T 46..........................................Viscosity 6.7 cSt @ 100°C / 46 cSt @ 40°C / Pour -30°C (-22°F)
Mobil DTE 15M.......................................... Viscosity 7.8 cSt @ 100°C / 46 cSt @ 40°C / Pour -36°C (-33°F)
If choosing an oil other than those recommended above, the following specifications should be used:
• Kinematic Viscosity: 6-7 cSt @ 100°C / 46 cSt @ 40°C
• Pour point: -30°C (-22°F) or colder
• Viscosity stabilizers, excellent resistance to viscosity breakdown (shear).
• Anti-wear, Anti-foam formulation, for use in all pump types at all pressures.
• Low-zinc additives; zinc levels should not exceed .08% of total weight
Clean hydraulic oil is critical to achieve high performance and get long life from your hydraulic system. The oil and filter
should be changed in accordance with the instructions contained in the "Maintenance Intervals" section of your manual.
The hydraulic oil should be changed immediately if it appears dirty or smells burnt.

Biodegradable Hydraulic Oil

Panolin HLP Synthetic Ester Base VG46 is the only approved Bio-Degradable Hydraulic oil for Rayco machines. All mineral
base oils must be completely drained out of system and components before refilling with Panolin HLP Synthetic VG46
Bio-degradable oil.
Gearbox Fluid
The RG27/35 uses a 90 degree gearbox to transfer power from the motor to the cutting wheel. The gearbox requires
synthetic 80W 90 gear oil and should be changed in accordance with the "Maintenance Intervals" section of this manual.
Chain Lubrication
The chain can be lubricated using premium lithium EP semi-fluid grease NLGI-00-000 Rayco #30088 filled ~3/4" above
chain or ~2 qts.
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