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6520 Kraft General Foods Corp

Lubrication Engineers of Canada Limited
2200 Bristol Circle, Oakville, Ontario, L6H 5R3
1-800-GO-LUBES (465-8237)
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6520 MONOLEC® HYDRAULIC OIL KRAFT GENERAL FOODS CORP., Avon, NY Forklifts CUSTOMER PROFILE This particular Kraft General Foods Plant makes Cool Whip. All of their equipment is lubricated with LEproducts and they have been an LE customer since 1975. APPLICATION A critical area of lubrication is the forklifts, which operate in and out of the cold storage warehouse. AREA OF INTEREST When the forklifts are in the cold area, the temperature is -14ºF. (-26ºC.). As they move out to pick upanother pallet of fresh product, the temperature can range anywhere from 65ºF. to 90ºF. (18ºC. to 32ºC.).At certain times a forklift might operate for an extended period within the cold area, and at another time itmight operate for an extended period of time in the warm area. LE SOLUTION Because of the extremes in operating temperatures the choice for the forklifts was LE's 6520 MONOLECHydraulic Oil (5W-20). Two units were chosen for a test of LE's 6520. Both were Clark forklifts, one amodel E50 BC (unit F42) and one a model E50 B (unit F43). Oil samples of the ISO 32 oil were pulledfrom both units before they were converted to LE's 6520. These samples of the commercial grade ISO 32oil were sent to a laboratory for spectroanalysis. The commercial grade oil had been in unit F42 for 1,570hours (see column 1 of test analysis) before testing and unit F43 had only 400 hours (column 3) beforetesting. The high copper count was from pump repair work recently done on the unit. The ISO 32 oil wasdrained and the units filled with LE's 6520. LE's 6520 was tested five times over the next year in bothunits. This amounted to 3,500 hours of use in each unit. When LE's 6520 MONOLEC Hydraulic Oil was being considered for use in these forklifts, there were twocritical questions raised by Kraft General Foods mechanics. First, was this oil going to flow freely enoughto satisfy the pumps when the truck was operated for an extended period in the cold area? If it didn't, theywould lose the pumps. Secondly, would the hydraulic operation be sluggish when the truckwas operatedfor an extended period in the cold area? After a full year of use, operating three shifts per day on manydays, it was determined that both of these questions had favorable answers. There has not been oneoperator complaint of sluggish operation and they have not lost a pump since converting to LE's 6520. CUSTOMER COST SAVINGS Values for LE's 6520 MONOLEC® Hydraulic Oil after 3,500 hrs. of use were substantially lower than that experienced with the previous commercial oil when it had less than half as many hours of use. The reduced rate of wear metals means longer life of the moving parts of the hydraulic system. The lower oxidation rate of LE's 6520 also means less lubricant degradation and longer life for the oil. The greatest difference noticed by the mechanics using LE's 6520 MONOLEC Hydraulic Oil was reduced leakage. Normal makeup oil with the commercial grade lubricant was 1.5 gallons per week, per forklift. This dropped to about one quart per month with LE's 6520. The LE Representative was told that on an average, each forklift required one 55 gallon drum of hydraulic oil per year while operating under normal circumstances. Using LE's 6520, they had operated two forklifts for a full year on one drum, and this included the initial fill for each one. This represents better than a 50% reduction in total usage and probably about 75% reduction in leakage. This reduction is due in part to the higher viscosity index of LE's 6520 and partly to the "kindness" of a 100% pure paraffinic oil as it affects seals, hoses and O-rings. All forklifts have been converted to LE's 6520 MONOLEC Hydraulic Oil and they are now buying in LE's 550 gallon returnable Bulk Tank. Their oil leakage problems continued to dwindle as old hoses and seals which were subjected to the commercial grade lubricant were replaced. The hose reel seal gave continual problems. The master mechanic said, "I used to have to replace at least one of these seals per week, but since using LE's 6520, I almost never have to replace one. It's been so long, the last time I replaced one I had to look at the instruction manual to refresh my memory on how to do it." He further states, "If anyone had told me that there could be so much difference in the benefits of a high quality oil, I would have laughed at them.








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