Perkins Phaser Series - Page 329

24A AUXILIARY EQUIPMENT
Data and dimensions
Note: This information is given as a guide for personnel engaged on engine overhauls. The dimensions
which are shown are those which are mainly used in the factory. The information applies to all engines,
unless an engine type code is shown.
Wabco compressor
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wabco 159 or 229
Number of teeth on compressor drive gear:
- Early compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
- Latest compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Inside diameter of drive gear:
- early compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23,750/23,775 mm (0.9350/0.9360 in)
- latest compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23,773/23,790 mm (0.9359/0.9366 in)
Outside diameter of compressor drive shaft . . . . . . . . . . . . . . . . 23,753/23,765 mm (0.9352/0.9356 in)
Transition fit of gear on shaft of early compressors- . . . . . . . . 0,015/+0,022 mm (-0.0006/+0.0009 in)
Clearance fit of gear on shaft of latest compressors . . . . . . . . . . . 0,008/0,037 mm (0.0003/0.0014 in)
Bore for bush . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19,000/19,030 mm (0.7480/0.7492 in)
Inside diameter of bush . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15,875/15,900 mm (0.625/0.626 in)
Outside diameter of bush . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19,050/19,075 mm (0.075/0.7510 in)
Interference fit of bush in compressor casing . . . . . . . . . . . . . . . . 0,020/0,075 mm (0.0008/0.0030 in)
Compressor drive assembly
- early engines
Number of teeth on idler gears . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Inside diameter of idler gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22,23/22,25 mm (0.875/0.876 in)
Outside diameter of shaft for idler gears . . . . . . . . . . . . . . . . . . . . 22,23/22,24 mm (0.8750/0.8756 in)
Transition fit of gears on shaft . . . . . . . . . . . . . . . . . . . . . . . . -0,01/+0,.02 mm (-0.0004/+0.0008 in)
Inside diameter of front bearing . . . . . . . . . . . . . . . . . . . . . . . . . 24,987/25,003 mm (0.9837/0.9844 in)
Outside diameter of shaft for front bearing . . . . . . . . . . . . . . . . . 25,014/25,026 mm (0.9848/0.9853 in)
Interference fit of bearing on shaft . . . . . . . . . . . . . . . . . . . . . . . . 0,011/0,039 mm (0.0004/0.0015 in)
Housing bore for front bearing . . . . . . . . . . . . . . . . . . . . . . . . . . 61,948/61,966 mm (2.4389/2.4396 in)
Outside diameter of front bearing . . . . . . . . . . . . . . . . . . . . . . . . 61,983.62,004 mm (2.4403/2.4411 in)
Interference fit of front bearing . . . . . . . . . . . . . . . . . . . . . . . . . . 0,017/0,056 mm (0.0007/0.0022 in)
Outside diameter of shaft for rear bush . . . . . . . . . . . . . . . . . . . . 15,82/15,85 mm (0.6228/0.6240 in)
Clearance fit of shaft in bush . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0,025/0,08 mm (0.001/0.003 in)
24A.14 Perkins Phaser/1000 Series, April 1995