GE IC3645SR4T405CT1 Installation And Operation Manual

GE IC3645SR4T405CT1 Installation And Operation Manual Manual pdf 16 page image

DIAGNOSTIC STATUS CODESIT TRANSISTOR CONTROL Page 16January 2008Do not loop level L signal wires around level H, levelMP, or HP wires.4.2.5 RF InterferenceTo prevent radio frequency (RF) interference, careshould be taken in routing power cables in the vicinityof radio-controlled devices.Section 4.2.6 SuppressionUnless specifically noted otherwise, suppression (forexample, a snubber) is required on all inductivedevices controlled by an output. This suppressionminimizes noise and prevents damage caused byelectrical surges.Section 4.3 Recommended Lubrication of Pinsand Sockets Prior to InstallationBeginning in January of 1999, GE will implement theaddition of a lubricant to all connections using pinsand sockets on EV100/EV200 and Gen II products.Any connection made by GE to the A, B, X, Y, or Zplugs will have the lubricant NYE 760G added toprevent fretting of these connections during vehicleoperation.Fretting occurs during microscopic movement at thecontact points of the connection. This movementexposes the base metal of the connector pin which,when oxygen is present, allows oxidation to occur.Sufficient build up of the oxidation can causeintermittent contact and intermittent vehicleoperation. This can occur at any similar type ofconnection, whether at the control or in anyassociated vehicle wiring, and the resultantintermittent contact can provide the same faultindication as actual component failure.The addition of the NYE 760G lubricant will preventthe oxidation process by eliminating the access ofoxygen to the contact point. GE recommends theaddition of this lubricant to the 12 pin and 23 pinplugs of all new Gen II controls at the time of theirinstallation into a vehicleWhen servicing existing vehicles exhibitingsymptoms of intermittent mis-operation or shutdownby the GE control, GE recommends the addition ofthis lubricant to all 12 and 23 pin plugs, after propercleaning of the connectors, as a preventativemeasure to insure fretting is not an issue before GEcontrol replacement. Also, for long term reliablecontrol operation, the plug terminals must bemaintained per these instructions with therecommended contact cleaner and lubricant whichprovides a high degree of environmental and frettingprotection.New and re-manufactured control plugs are cleanedand lubricated prior to shipment from the factory.However, in applications where severe vibration orhigh temperature cycling and excessive humidity (such as freezers ) are present, it is recommendedthat the plug terminals be cleaned and lubricatedevery year, per this instructions. In normalapplications, plug maintenance should be performedevery two years, unless intermittent problems arisewith the plugs, requiring more immediate attention.Warning: Do not use any other cleaners orlubricants other than the ones specified.WARNING: Before conducting maintenance onthe vehicle, jack up the drive wheels, disconnectthe battery and discharge the capacitors.Consult the Operation and Service Manual foryour particular vehicle for details on dischargingthe capacitors; this procedure differs betweenSCR and Transistor controls.1. Disconnect plug from controller or mating plug.2. Locate the plug that contains the socket (female)terminals. Maintenance needs only to beperformed on the plug containing the socket(female) type terminals. Reconnecting the plugswill lubricate the pin (male) terminals.3. Clean each terminal using Chemtronics® contactcleaner “Pow-R-WasH CZ “ as shown in Figure1.Figure 14. Lubricate each terminal using Nye® 760Glubricant as shown in figure 2. Apply enoughlubricant to each terminal opening to completelyfill each opening to a depth of .125” maximum.ChemtronicsPow-R-WasHCZcontact cleanercirozane