ALTERNATOR GP -B 20R4033 - Caterpillar

(1) Torque for the bolts that hold the impeller to the turning housing ... 20 1 lb. ft.(25 1 N m)(2) Clearance between turbine and stator: Across the diameter (new) ... .012 to .018 in.(0.31 to 0.46 mm)Maximum permissible across the diameter (worn) ... .030 in.(0.76 mm)(3) Clearance between turbine and turning housing: Across the diameter (new) ... .040 to .060 in.(1.02 to 1.52 mm)Maximum permissible across the diameter (worn) ... .090 in.(2.29 mm)(4) Clearance between impeller and stator: Across the diameter (new) ... .009 to .015 in.(0.23 to 0.38 mm)Maximum permissible across the diameter (worn) ... .024 in.(0.61 mm)(5) Torque for bolts that hold gear to impeller ... 36 2 lb. ft.(46 3 N m)(6) Torque for the bolt that holds retainer to shaft ... 40 4 lb. ft.(55 5 N m)(7) Torque for bolts that hold retainer to turning housing ... 36 2 lb. ft.(46 3 N m)(8) 1K7041 Springs: Length under test force ... 1.03 in.(26.2 mm)Test force ... 11.5 1 lb.(51 5 N)Free length after test ... 1.25 .06 in.(31.8 1.5 mm)Outside diameter ... .500 in.(12.70 mm)(9) Torque for bolts that hold stator to carrier ... 20 1 lb. ft.(25 1 N m)