FUEL SYSTEM (CONT’D) Figure 10-80-14 Pre-Filter Installation (S/N 522311001 & Above) (Cont’d) Figure 10-80-12 1 1 2 1 P-32862 Remove the bolt (Item 1) and loosen the vent screw (Item 2) [Figure 10-80-14] . P-32858 Fill the filter through the bolt hole with clean fuel until fuel flows from the vent with no air bubbles. Install the filter housing (Item 1) and bolt (Item 2) [Figure 10-80-12] . Install the bolt (Item 1) [Figure 10-80-14] . Tighten the bolt to 15-18 ft.-lbs. (20-25 Nm) torque. Tighten the vent screw (Item 2) [Figure 10-80-14] . Figure 10-80-13 P-32699 1 Close the drain (Item 1) [Figure 10-80-13] on the bottom of the filter housing. 442 Excavator 10-80-5 Service Manual