Usage:
(1) Bore in spring retainer bearing ... .747 ± .001 in.(18.97 ± 0.03 mm)
Diameter of bearing surface ... .741 ± .001 in.(18.82 ± 0.03 mm)
(2) 9F7651 Spring for governor:
Put force on spring of ... 25 lb.(110 N)
Then add more force to make spring shorter by ... .625 in.(15.88 mm)
Total test force ... 115.6 ± 2.5 lb.(514.5 ± 11.0 N)
Free length after test ... 2.625 in.(66.68 mm)
Outside diameter ... 2.121 in.(53.87 mm)
(2) 1H5646 Spring for governor (3% Regulation at 1000 rpm):
Put force on spring of ... 25 lb.(110 N)
Then add more force to make spring shorter by ... .625 in.(15.88 mm)
Total test force ... 76.9 to 79.4 lb.(341.5 to 353.0 N)
Free length after test ... 2.75 in.(69.9 mm)
Outside diameter ... 2.086 in.(52.98 mm)
(2) 4H7390 Spring for governor (3% Regulation at 1200 rpm):
Put force on spring of ... 25 lb.(110 N)
Then add more force to make spring shorter by ... .625 in.(15.88 mm)
Total test force ... 95.2 ± 1.70 lb.(423.0 ± 7.55 N)
Free length after test ... 2.689 in.(68.30 mm)
Outside diameter ... 2.099 in.(53.31 mm)
(2) 9F7653 Spring for governor (10% Regulation at 1200 to 1250 rpm)
Put force on spring of ... 25 lb.(110 N)
Then add more force to make spring shorter by ... .625 in.(15.88 mm)
Total test force ... 101.2 to 105 lb.(450.3 to 467 N)
Free length after test ... 2.75 ± .03 in.(69.9 ± 0.8 mm)
Outside diameter ... 2.106 in.(53.49 mm)
(2) 9F7650 Spring for governor:
Put force on spring of ... 25 lb.(110 N)
Then add more force to make spring shorter by ... .625 in.(15.88 mm)
Total test force ... 128.7 to 133.7 lb.(572.5 to 595.5 N)
Free length after test ... 2.72 in.(69.1 mm)
Outside diameter ... 2.160 in.(54.86 mm)
(3) Diameter of shaft for rack lever ... .5003 ± .0002 in.(12.708 ± 0.005 mm)
Bore in bearing for shaft for rack lever ... .5040 ± .0005 in.(12.802 ± 0.013 mm)
Bore in bearing for shaft in opposite side of rack lever ... .5027 ± .0003 in.(12.769 ± 0.008 mm)
(4) Diameter of upper bearing surface of spindle ... .4918 ± .0002 in.(12.492 ± 0.005 mm)
(5) Diameter of the pins for the weights and rollers ... .3126 to .3129 in.(7.940 to 7.948 mm)
Diameter of rollers for the weights ... .748 to .750 in.(19.00 to 19.05 mm)
(6) Diameter of spindle bearing surface for the lower bearing ... .7493 ± .0003 in.(19.032 ± 0.008 mm)
Bore in lower bearing ... .7507 ± .0003 in.(19.068 ± 0.008 mm)
(7) Free play between drive gear and pinion ... .002 to .005 in.(0.05 to 0.13 mm)
(8) Diameter of bearing surface for pinion bearing ... .9358 ± .0002 in.(23.769 ± 0.005 mm)
Bore in bearing for pinion ... .938 ± .001 in.(23.83 ± 0.03 mm)
Maximum permissible clearance between pinion bearing surface and bearing ... .008 in.(0.20 mm)
End play of pinion ... .002 to .006 in.(0.05 to 0.15 mm)
(9) Torque for bolts ... 35 lb. ft.(45 N·m)