LAMP GROUP 2G7639 - Caterpillar

Illustration 1 g03152736
Table 1
Specification for 1W-0899 Prelubrication Oil Pump Gp and 1W-4776 Prelubrication Oil Pump Gp
Item Qty Part Specification Description
A - - Depth of the idler pocket is between 31.72 to 31.76 mm (1.249 to 1.250 inch).
B - - Bore of bearing after installation is 19.13 mm (0.753 inch).
C 1 3N-1285 Rotor Outside diameter is 85.53 0.02 mm (3.367 0.001 inch).
D 1 3N-1284 Idler As Thickness is 31.790 0.010 mm (1.2516 0.0004 inch).
- - - The clearance between the back of the rotor and the machined surface in the bottom housing is 0.013 0.076 mm (0.0005 0.0030 inch).