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 3500 ENGINE
SPECIFICATIONS
GOVERNOR FASTENER GROUP
(UG8L & 3161 Governors)
(1)
Torque for:
Bolts (3161) ................ 45 + 7 N-m (32 + 5 lb. ft.)
Studs (UG8) ............... 30 + 5 N-m (22 + 4 lb. ft.)
(2)
Torque for plugs ..... 70 + 15 N-m (50 + 11 lb. ft.)
GOVERNOR DRIVE
7N1889 & 8N9662 Drive Groups Used With UG8-L Woodward
Governors
1W2135 Drive Group Used With Caterpillar 3161 Governors
(1)
Diameter of bore in adapter
.............. 34.072 + 0.025 mm (1.3414 + .0010 in.)
Diameter of shaft on governor drive pinion (3)
.............. 34.000 + 0.013 mm (1.3386 + .0005 in.)
(2)
Adapter.
(3)
Governor drive pinion.
(4)
Bevel gear.
(5)
Diameter of shaft on bevel gear
.............. 34.000 + 0.013 mm (1.3386 + .0005 in.)
Diameter of bore in bearing after assembly in
drive housing
.............. 34.072 + 0.039 mm (1.3414 .0015 in.)
(6)
Shims. Use as required to get a gear clearance
(backlash) between pinion (3) and gear (4) of .....
0.00 + 0.050 or -0.025 mm (.0039 +.0020 or -.0010 in.)
(7)
Diameter of bore in drive
housing
.............. 40.432 + 0.025 mm (1.5918 + .0010 in.)
Diameter of bearing
.............. 40.545 + 0.013 mm (1.5963 + .0005 in.)
NOTE: FOR TORQUE VALUES NOT GIVEN, SEE THE FIRST
PAGE OF SPECIFICATIONS FOR GENERAL TIGHTENING TORQUES
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