C27 and C32 Industrial and Petroleum Engines Caterpillar

Illustration 1	g01381226
Typical example (1) Fuel filter base assembly (3) Fuel filter (4) Bowl

Note: Apply 154-9731 Thread Lock Compound to the threads on the taperlock end of the hollow stud.

(2) Tighten the hollow stud to the following torque. ... 70 ± 15 N·m (50 ± 11 lb ft)

(A) Distance from the sealing surface of the fuel filter base assembly to the end of the hollow stud ... 27.3 mm (1.07 inch)

Use the following procedure in order to assemble the water separator and fuel filter:

1. Remove bowl (4) from the bottom of fuel filter (3).

2. Remove the ring seal from the bowl. Discard the ring seal.

   Note: Replacement filters include a new ring seal. Reuse bowl (4) and use a new ring seal whenever a new fuel filter is installed.

3. Lubricate the newring seal with clean engine oil. Install the new ring seal in the groove of bowl (4).

4. Thread bowl (4) onto the bottom of fuel filter (3).

   Tighten bowl (4) to the following torque. ... 15 N·m (11 lb ft)

Electric Fuel Priming Pump (If Equipped)

Illustration 2	g01381229

(5) Tighten the plugs to the following torque. ... 95 ± 10 N·m (70 ± 7 lb ft)

(6) Tighten the tapping screws to the following torque. ... 6.0 ± 0.6 N·m (55 ± 5 lb in)

(7) Tighten the O-ring plug to the following torque. ... 11 ± 5 N·m (95 ± 45 lb in)

(8) Pump assembly

Performance at 24.0 ± 0.2 VDC

Maximum current at 850 kPa (125 psi) ... 7.5 Amperes

Minimum flow at 850 kPa (125 psi) ... 2.5 L/min (0.7 US gpm)

(9) Hollow stud

Apply 154-9731 Thread Lock Compound to the following distance from the top of the hollow stud. ... 24 mm (0.9 inch)

Tighten the hollow stud to the following torque. ... 50 ± 5 N·m (37 ± 4 lb ft)

(B) Distance from the sealing surface of the fuel filter base to the end of the hollow stud ... 21.4 mm (0.84 inch)