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These engines are rated 240 bmep at 900 and 1,000 rpm. One of these engines has reached the 9,000 hour mark in this operation. Al- though it is too early to give an ac- curate analysis of increased main- tenance necessitated by using the blend, preliminary indications are, for example, that valves will need replacing at 5,000 hours and rings at 10,000 hours. Alco has recently released a publication (2F-1500-1/ 83) outlining the operation of its 251 engines on intermediate fuel and the fuel-handling system. The publication outlines some of the items that are to be considered in the handling and treatment of the fuel to avoid excessive engine wear. In May of this year, Alco began testing the spark-ignited natural gas version of its new 270 series engine. The 12-cylinder engine is rated 2,650 bhp at 1,000 rpm. The ability to test these and newer models up to 8,000 hp was re- cently accomplished with the com- pletion of a new $2.8-million pro- duction test facility in Auburn, N.Y. This facility will also be able to test diesel engines. Engines will be loaded by a micro-processor controlled fluid friction dynamometer connected to the engine by a universal shaft. Three cooling towers cool the dy- namometers and engine fluid heat exchangers. The new facility incorporates state-of-the-art instrumentation for testing both the 251 and 270 die- sels and the 270 spark-ignited gas engine. Most engine parameters can be measured remotely in the control room. This expansion pro- vides greater on-site testing effi- ciency for Alco. Write the number above on the Reader Service Card for additional information on the Alco engines and a copy of the 2F- 1500-1/83 report. AMERICAN LOHMANN Write 43 on Reader Service Card Next year, Lohmann & Stolter- foht, the power transmission spe- cialist headquartered in West Ger- many, will celebrate its 100th birthday. American Lohmann, its U.S. Subsidiary, is located in Hill- side, N.J. In the beginning, the develop- ment and production of in-motion engaging and disengaging clutch- couplings constituted the firm's main activity. Later, L&S began the production of complete trans- mission lines with gearboxes, couplings, clutches, and shaft bearings particularly for the ship- building industry. Included in the extensive ma- rine power transmission line from L&S are the following products. Navilus Marine Gearboxes GUU reverse reduction gear units, with a power range from 110 hp to 910 hp, are designed for small fishing and workboats as well as yachts and patrol craft. Lightweight and compact design make the units particularly suited for high-speed craft. GUS type gear units have the same basic de- sign features with a power range from 500 hp to 1960 hp. GW gear units are designed for high power transmission espe- cially under heavy service condi- tions and are available in a vari- ety of configurations, i.e. reverse reduction and plain reduction, coaxial, vertical offset and hori- zontal offset. The GCS/H, GUC/H and GUO types are reduction gearboxes and cover the complete application range of medium-speed direct-reversible diesel engines with a power range from 1,500 hp to 65,000 hp. Combining two or more engines to drive a single propeller shaft may be accomplished with L&S compound gear GVA or GVG units with a power range of 1,800 hp to 60,000 hp and more per in- put line. A wide selection of specially de- signed gearboxes such as alterna- tor gear units, dredger transmis- sions, i.e. cutter head drives, gear units for sand pumps, electric gen- erators, and winch drives are also available. Couplings, Clutches and Bearings The exitations of diesel power (continued on page 14) Save money on aerial lifts with Hertz' new summer rate schedule. HERTZ ANNOUNCES REDUCED RENTAL f RATES ON AERIAL LIFTS. Call Hertz at 1-800-223-0983 and find out how you can save. Hertz just dropped the rates on $30 million worth of aerial lift equipment for the sum- mer. So now you can get a full range of mobile platforms and telescopic booms for a lot less. And you can get these low rates at all 52 Hertz locations across the country. So no mat- ter where you_ are, you're never far from Hertz. And low rates aren't the only thing you'll get at Hertz. You'll also get late model, well- maintained equipment. That's be- cause we have a ® REG US PAT Of f <0 HERTZ SYSTEM INC 1983 highly-trained service staff to keep our lifts running at their peak. In fact, it's the largest service staff in the industry. And because it's so large, should you have any problems with our equipment, you can get it repaired fast. Hertz also offers you other services, such as a central reservation system, pre- ferred account program and emergency service hotline. We can also lease or sell you aerial **' lifts at reduced prices. Of course, if you need other kinds of heavy equipment besides aerial lifts, we can I help you ' there too. Every Hertz location has over 500 pieces of inventory to offer you. From air compressors to cranes. Backhoes to fork lifts. To learn how you can save money on aerial lifts, call Hertz at 1-800-223- 0983. In New Jersey, call 201-428-6833. Or use the coupon. Either way, you'll find that the cost of going up in an aerial lift is now going down. r" Please send information on how Hertz can help me save money on: • Aerial Lift Equipment • All Hertz Equipment Name Company Title Address Hertz t Equipment Rental 1 Corporation I - Phone #_ Send to: Ron Massini, VE Sales, Hertz Equipment Rental Corp., 7 Entin Road, Bldg. #2, Parsippany, New Jersey 07054. MRE , July 15, 1983 Write 831 on Reader Service Card 13
