aRMer9 Posted July 23, 2010 Share Posted July 23, 2010 **The message below was sent to me from one of our departments, any help will b e appreciated...** 3842360-1 In the end of the assembly our Engineering detected that to install this material we need a Torsion Shaft (we don't know the PN). The assembly was made in accordance with the attached document: "Wheel and Shaft Assembly (Shaft Repair) due to damage or abnormal wear to internal spline area of shaft": "Install plug to depth shown. Identify wheel and shaft assembly by adding (-789) below the part number etched on the shaft. NOTE: It will be necessary to use a shortened torsion shaft in place of existing shaft at final assembly on the engine if the preceding repair has been performed Quote Link to comment Share on other sites More sharing options...
aRMer9 Posted July 28, 2010 Author Share Posted July 28, 2010 Any help? anyone?... Quote Link to comment Share on other sites More sharing options...
turbinetom Posted August 1, 2010 Share Posted August 1, 2010 Hi, Unfortunately, Honeywell does not produce a "short shaft" to allow use of the -789 repair in APU types with a planetary style gearbox. This repair is used widely in commercial units that incorporate a flat gearbox, not the crossways style on the 180L/185L APU. Your options at this point are: Relpace the turbine wheel with a unit that does not have a plugged shaft (-789) Re-shaft the wheel to restore the spline wear. Remove the plug from the wheel and re-evaluate the wear in the splines. Sorry there is not better news, most of us learned this lesson the hard way..had the compressor / turbine built only to find out the gearbox would not seat onto the assembly. Lastly, I have 3842360's in stock without the plugged repair. Regards, Tom Timmermann Avon Aero Supply Inc [email protected] Quote Link to comment Share on other sites More sharing options...
aRMer9 Posted August 3, 2010 Author Share Posted August 3, 2010 Tom, thanks for your help... will run it by and see... Quote Link to comment Share on other sites More sharing options...
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