C-9 Engines for Caterpillar Built Machines Caterpillar

Illustration 1	g00939387
Typical example

(1) Tighten the fitting for the oil inlet port to the following torque. ... 40 + 4 N·m (30 + 3 lb ft)

Fuel Transfer Pump

Illustration 2	g00937083
Rear view of the fuel transfer pump (view A-A)

(2) Tighten the fitting for the oil outlet port to the following torque. ... 48 + 5 N·m (35 + 4 lb ft)

(3) Tighten the three mounting bolts for the fuel transfer pump to a snug fit. Final tightening torque for the bolts ... 8.0 ± 0.4 N·m (70 ± 4 lb in)

(4) Tighten the fitting for the fuel inlet port to the following torque. ... 15 ± 2 N·m (11 ± 1 lb ft)

(5) Tighten the four tie bolts for the pump housing to a snug fit. Use a crisscross pattern as a torque sequence. Begin with the bolt in the lower left corner of the pump housing and tighten the four tie bolts to 28 ± 2 N·m (20 ± 1 lb ft). Torque the bolts again in order to ensure that the gasket compresses completely. Use the same torque sequence that was used previously. Final tightening torque for the bolts ... 28 ± 2 N·m (20 ± 1 lb ft)

(6) Tighten the fitting for the fuel outlet port to the following torque. ... 15 ± 2 N·m (11 ± 1 lb ft)

Low speed pump performance.

Engine RPM ... 800

Minimum fuel flow ... 0.45 L/min (0.119 US gpm)

Fuel pressure ... 425 kPa (62 psi)

High speed pump performance.

Engine RPM ... 2750

Minimum fuel flow ... 2.27 L/min (0.600 US gpm)

Fuel pressure ... 425 kPa (62 psi)