WAI Technical Update #48 Wil Page | of 1 Open Orders Home ** Company Info Ship Tracker WAI Part Lookup Cross Reference Vehicle Lookup Electrical System Bill Of Materials Shorter LRC Value Longer LRC Value Delco CS130, CS144 Series 35-127, P-L-I-S,2.5sec.LRC | 35-136, P-L-I-S, 10 sec. LRC 5-117, P-L-F-S, 2.5 sec. LRC Delco CS130D Series 35-132, P-L-I-S, 2.5 sec. LRC 35-122, P-L-F-S, 10 sec. LRC 35-133, P-L-I-S, 10 sec. LRC Ford 3G Series 35-204, D-Shape Plug, wo/ LRC 35-207, D-Shape Plug, 6 sec. LRC 35-206, Square Plug, wo/ LRC Ford 4G Series 35-208, 6 sec. LRC 35-209, Square Plug, 5 sec. LRC + Employment¥ Products * TechInfo ~™ Publications * o am. Login Technical Update #48, July 2002 Interchangeability of Regulators with Load Response Control (LRC) The question about replacing regulators with different Load Response Control (LRC) values has come up several times on Delco and Ford applications. The regulator load-response control (LRC) feature gradually applies the electrical load and eliminates the rough engine idling and vibration caused by a sudden electrical load drawing on the engine torque at low RPM’s. Interchanging regulators with different LRC values is normally not recommended but you can replace a shorter LRC value regulator with a longer LRC value regulator. For example, a 2.5 sec. LRC regulator could be replaced with a 10 sec. LRC regulator. However, it is not recommended that you replace a 10 sec. LRC regulator with a 2.5 sec. LRC regulator. Using the shorter LRC value regulator in place of the longer LRC value could invite customer complaints in the form of engine stumble and vibration due to a charging system load coming on too quickly. For some applications, such as snow plows that are subjected to heavy loads, substituting a regulator with a longer LRC value is an enhancement, resulting in longer belt life. Information or questions: copyright © 2002 Wetherill Associates, Inc. All rights reserved. http://www.wai-wetherill.com/techups/techup_48.cfm 3/23/2007