SEAL-LIP TYPE 7B8320 - Caterpillar

Illustration 1 g01621126
(3) Check valve (4) CapWhen the fuel transfer pump group is viewed from the drive end, the drive gear rotates in the clockwise direction.Minimum output ... 21 L/min (5.5 US gpm)Minimum output is attained under the following conditions:Pump pressure ... 415 kPa (60 psi)Pump speed ... 2400 rpmMinimum cracking pressure of bypass valve ... 620 kPa (90 psi)Maximum pressure of fully open bypass valve ... 965 kPa (140 psi) (1) Dimensions for terminal bushing Inside diameter of the terminal bushing for gear shaft ... 12.783 mm (0.5033 inch) Installation depth of terminal bushing ... 1.5 0.5 mm (0.06 0.02 inch) (2) Dimensions for drive shaft assembly Diameter of the shaft ... 12.700 to 12.675 mm (0.5000 to 0.4990 inch) Diameter of the gear ... 29.801 0.006 mm (1.1733 0.0002 inch) Length of the gear ... 25.347 0.008 mm (0.9979 0.0003 inch) (5) Dimensions for idler gear assembly Diameter of the gear ... 29.801 0.006 mm (1.1733 0.0002 inch) Length of the gear ... 25.347 0.008 mm (0.9979 0.0003 inch) (6) 1W-4655 Relief Valve Spring Free length ... 28.4 mm (1.12 inch) Outside diameter ... 10.7 mm (0.42 inch)