SENSOR-SPEED 2143438 - Caterpillar

Illustration 1 g01347064
(2) Check valves (3) Fuel outlet port (5) Fuel inlet port (1) Lightly lubricate the O-ring seals with the lubricant that is being sealed.Note: The guide and the tappet are a matched set. If one part is worn, a new guide and tappet assembly must be installed. (A) Clearance between the guide and the tappet assembly ... 0.0025 to 0.0101 mm (0.00010 to 0.00040 inch) (B) Bore in the sleeve for the piston ... 34.000 0.015 mm (1.3386 0.0006 inch) (C) Diameter of the piston ... 33.972 0.008 mm (1.3375 0.0003 inch) (4) 7W-0134 Spring Length under test force ... 33.67 mm (1.326 inch) Test force ... 221 11 N (50 2.5 lb) Free length after test ... 56.1 mm (2.21 inch) Outside diameter ... 27.36 mm (1.077 inch)Note: When the fuel transfer pump is using diesel fuel and the fuel transfer pump is operated at 1110 strokes per minute with the stroke distance of 8 mm (0.3 inch), the pump output should be a minimum of 2.5 L/min (0.7 US gpm) with a pump outlet pressure of 172 kPa (25 psi).