SPACER 0530809 - Caterpillar

Wheel Loader:
980K (S/N: W7K1-UP; NEP1-UP; GTZ1-UP)
Description of Change: Certain 980K Wheel Loaders that are equipped with the lock up clutch and the speed limiter can experience an interaction where the speed limiter causes the lock-up clutch to engage and disengage (hunt). This process occurs only when operating around the 20 km/h (12.43 mph) speed limit. Lock up clutch engagement point in fourth gear is close to 20 km/h (12.43 mph). Therefore, the possibility exists for the lock up clutch to engage in fourth gear under certain driving conditions. As the speed limiter control limits the engine to maintain 20 km/h (12.43 mph), there may not be enough power to keep the lock up clutch engaged and hunting of the lock up clutch occurs.These machines are now being configured from the factory with the Transmission Maximum Forward Gear and the Transmission Maximum Reverse Gear set to 3. At speeds of 20 km/h (12.43 mph) or below, operating in third gear is more efficient than operating in fourth gear converter drive. This change will allow the machine to operate more efficiently without experiencing hunting of the lockup clutch.Adaptable To: Machines listed below, that are equipped with both the 351-3576 Transmission Ar or 351-3577 Transmission Ar and the 213-7276 Power Train Electronic Control Module attachment can be reconfigured using Caterpillar Electronic Technician (Cat ET). Access the transmission ECM configuration screens and set the Transmission Forward Gear and Transmission Reverse Gear to 3.The recommended transmission configuration setting change is adaptable to the following machines.
980K (S/N: GTZ1-522)
980K (S/N: W7K1-1588)
980K (S/N: NEP1-112)The recommended transmission configuration setting change is effective with the following machines.
980K (S/N: GTZ523-UP)
980K (S/N: W7K1589-UP)
980K (S/N: NEP113-UP)