Open Gear Lubricants

Bucyrus International, Inc. SPECIFICATION FOR

OGL – OPEN GEAR LUBRICANT

SD4713 (August 18, 2005) SCOPE: 1. This specification covers “Open Gear Lubricant”. 2. Materials furnished under this specification are primarily intended to lubricate open gears, but may also be used to lubricate racks, bushings, rails, rollers, dipper handles and propel mechanism components. 3. The material furnished under this specification must be dispensable through the distribution lines of a centralized lubrication system to the most remote application point, at the lowest anticipated operating temperature. It must not plate or plug components of the centralized lubrication system such as injectors, metering blocks, or spray nozzles. 4. This specification covers open gear lubricants that may be applied in service at temperatures ranging from -50°C (-58°F) to the highest ambient temperature conditions. The particular grade or consistency selected must perform within the specific temperature range in which it is utilized.

PHYSICAL CHARACTERISTICS: 1. Materials furnished under this specification may be asphaltic (bitumen) compounds, or blends of a thickener and mineral oils and/or synthetic fluids. They may be in the form of viscous fluids, semi-fluid greases or pastes. 2. Materials furnished under this specification are produced with highly fortified blends of viscous fluids combined with additives to form stable, long lasting, high load carrying, wear resistant films that lubricate under mixed film and boundary conditions. 3. Open gear lubricants supplied under this specification must have excellent adhesive and cohesive qualities, must not chip or throw off, and must provide sufficient film thickness and scuffing resistance to prevent metal to metal contact between applications under all operating conditions. 4. Various grades or consistencies of open gear lubricants may be required to provide proper lubrication and application properties over a wide range of ambient temperatures. The consistency of the lubricant as applied must be appropriate for the method of application, and the in-service consistency shall be appropriate for the lubricant to meet or exceed the minimum performance requirements listed in the "MINIMUM PERFORMANCE REQUIREMENTS" section.

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Bucyrus International, Inc. SPECIFICATION FOR

OGL – OPEN GEAR LUBRICANT

SD4713 (August 18, 2005) 5. Viscosity, a fluid's resistance to flow, is the principal physical characteristic of a fluid in terms of its ability to produce a lubricating film between two interfacing surfaces. All lubricating fluids possess a natural viscosity that may be altered (enhanced) by additives such as resins or polymers. Some "viscosity enhancers" are shear sensitive, which could result in insufficient protection of the lubricated components under high load, elevated temperatures and/or high shear conditions. The viscosity of the fluids utilized in the open gear lubricants shall be sufficient under operating conditions for the product to meet or exceed the performance requirements listed in the "MINIMUM PERFORMANCE REQUIREMENTS" section. 6. Open gear lubricants supplied under this specification must be specifically formulated to protect surfaces, reduce wear, and provide satisfactory service life under all anticipated operating conditions. 7. Open gear lubricants supplied under this specification must have excellent water tolerance and rust preventive qualities, as well as minimal dripping qualities for operation over wide temperature ranges. 8. Should the material furnished under this specification contain a diluent to improve dispensability, special care must be exercised to ensure its compatibility with all centralized lubrication system components, i.e., gaskets, o-rings, vent valves, etc., and oil seal lip materials (Nitriles, Viton). Reference ASTM D 4289-03. 9. For extended use in low temperature areas, open gear lubricants supplied under this specification should be capable of slumping in containers and should be pumpable through lube lines without the aid of heat tracing. In order to minimize compatibility problems, it is desirable that the thickener and additive system be compatible with the additional grades that are suitable for the other ambient temperatures.

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Bucyrus International, Inc. SPECIFICATION FOR

OGL – OPEN GEAR LUBRICANT

SD4713 (August 18, 2005) MINIMUM PERFORMANCE REQUIREMENTS: PROPERTY REFERENCE REQUIREMENT Flash point of product as applied, minimum (base product with diluent) ASTM D92 / ISO 2592 Ambient Temperature (See Note #1) -50°C(-58°F) to +10°C(50°F) 61°C (142°F) Above +10°C(50°F) 80°C (176°F) Flash point of base fluid(s), minimum ASTM D92 / ISO 2592 140°C (284°F) Rust protection ASTM D 1743 Pass Copper strip corrosion maximum rating ASTM D 4048 2e 24hr. @ 100°C (212°F) Four ball EP test weld point, minimum kgf ASTM D 2596 800 (base product without diluent) Load wear index (LWI), minimum ASTM D 2596 120 (base product without diluent) Four ball wear test 60 minutes @ 40 kgf. ASTM D 2266 0.7 Maximum scar, mm (base product without diluent) Adhesive properties Must adhere to surfaces at the lowest anticipated ambient temperature. Pumpability, Lincoln Ventmeter To vent from 1800 psi (127 kgf/cm^2) to less than or equal to 600 psi (42 kgf/cm^2) within 30 seconds at the lowest anticipated ambient temperature (Testing temperature not less than -25°C/-13°F). Minimum Base Fluid Viscosity Ambient Temperature ASTM D 445 (See Note #1) °C (°F) -50 to +10 (-58 to +50) 680 cSt at 40°C -20 to +40 (-4 to +104) 1860 cSt at 40°C +10 to +50 (+50 to +122) 3600 cSt at 40°C Lubricating Solids (Molybdenum Disulfide, Graphite, Etc.) 15 Microns Particle Size, (Microns, max.) NOTE: 1. Ambient Temperature - The ambient temperature shall be the temperature at the point of lubricant application.

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Bucyrus International, Inc. SPECIFICATION FOR

OGL – OPEN GEAR LUBRICANT

SD4713 (August 18, 2005) CERTIFIED LUBRICANTS: Lubricants certified by their manufacturers as complying with this specification will be listed on the “Certified Lubricants Listing for Open Gear Lubricant” (see the Bucyrus International, Inc. web site www.bucyrus.com for the latest listing). The use of non-certified lubricants may invalidate the Bucyrus International, Inc. product warranty obligation. Specific product selection is the responsibility of the equipment operator/owner and is dependent on climate, application, performance and regional/local regulatory requirements. Lubricant manufacturers seeking to certify their products should contact the following for direction: Bucyrus International, Inc. Engineering Services & Technical Support 1100 Milwaukee Avenue South Milwaukee, Wisconsin 53172 Phone (414) 768-4000 SPECIFICATION REVISIONS: This specification is subject to change without notice. Please contact the following for the latest specification: Bucyrus International, Inc. Engineering Services & Technical Support 1100 Milwaukee Avenue South Milwaukee, Wisconsin 53172 Phone (414) 768-4000

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