Steep incline pump drive highlights expanded Funk programs - Mechanical Powertrain Component Supplement - Funk Manufacturing

The launch of a new hydraulic pump drive for steep incline applications highlights an expanded marketing program for Funk Mfg. Funk, Coffeyville, Kan., manufactures a variety of powertrain components, including transmissions, gearboxes and hydraulic pump drives, and is responsible for the marketing of axles manufactured by the Power Systems Group of Deere & Co., Funk's parent company. Funk also signed a North American sales agreement with England's International Transmissions Ltd. (see August 1998, Diesel Progress).

The new pump drive for steep incline use is part of Funk's 56000 series, and is similar in design to the existing five pump drives in that range. The new drive carries a rating to 950 hp (2000 lb.ft. at 2500 rpm) and can drive up to five hydraulic pumps. Target markets include trenchers, drill rigs and trash compactors.

The new steep incline configuration includes pressure lubrication, as well as a lowered sump case that is designed to eliminate gear contact with the oil in a horizontal position and reduces contact with the oil in side tilt applications up to 30 [degrees].
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Continuous operation in extreme side tilt applications in normal gearbox configurations can immerse one or more gears totally in oil, causing heating and gear damage because of the churning of the oil, Funk said. The new pump drive design includes a lube pump that supplies oil to all gear meshes, splines and bearings at all times, through internal lines drilled into the pump drive casting. Thus there are no external lines to leak or break, Funk said.

A pressure switch is also part of the new configuration, and can be wired to a panel light to warn the operator of low lube oil pressure in the drive. Further, the new hydraulic pump drive also includes high-contact ratio spur gears for quieter operation and ease of service and cylindrical roller bearings are also used, eliminating the need to shim the beatings.

The new pump drive configuration is also the first of what is expected to be an expanded emphasis on pump drives for Funk. According to Jim Huffman, sales manager, part of that program is increased emphasis on distributor pump drive sales and packaging. This is being done, said Huffman, as Funk distributors are doing more and more work with smaller equipment manufacturers.

The Funk distributors, totaling 22 worldwide, keep unsealed pump drives in stock, as well as gear ratio sets, power take-offs, a range of inputs, clutches, pump adapters and plates that allow them to essentially "build" a pump drive for a specific customer application. There are also 27 service dealers worldwide that support Funk's OEM direct programs.

Some distributors are packaging the Funk pump drives with Deere engines as a complete hydraulic power unit, while others are packaging hydraulic pumps with the pump drives, giving the equipment manufacturer a full hydraulic drive package.

As detailed in August, Funk is now the exclusive sales agent of International Transmissions Ltd., for the Americas. This adds a complementary range of transmissions and axles to Funk's axle and transmission range.