4. Remove the rubber grommet and spring from the center post in the niter base.
B. Cleaning 1. Wipe out the inside of the filter base with a dean rag and flush with dean diesel fuel allowing the fuel to drain through the drain cock. 2. Clean the cover and holt assembly plus the base spring, in diesel fuel.
C. Filter Element Installation 1. Close the drain cock at the hottom of the filter base. 2. Assemble the spring and a new rubber grommet on the center post of the filter base. 3. Use a new gasket at the top and bottom of the new filter element and position the element over the rubber grommet on the center post of the filter base. 4. Place the cover and holt assembly through the center core of the element and depress the element slightly to start the holt threads. Tighten the cover and holt assembly. Open the fuel tank shut-off valve. Prior to starting the tractor engine, the fuel system must be bled as outlined in Section 3.
Figure 4-Servititlg the Fuel Filter Element
FUEL INJECTORS Injector removal and installation cannot be accomplished without repositioning the push rods. When servicing the injectors, always cap off the injector inlets as well as the pump pressure lines tn avoid the possibility of dirt entry, which would quickly destroy the injectors during operation.
4. Back off the valve rocker adjusting screws two turns each to relieve valve spring tension and free the push rods from the rocker arms on both sides of the injectors as follows: a. Start at either the left or right side of an injector, position a 112" box wrench over the head of the valve rocker adjusting screw and lift the rocker arm sufficiently to free the push rod.
A. Injector Removal 1. Remove the valve rocker cover and gasket. Disconnect the excess fuel return line at the top of each injector. Back off the hex nut fitting at the "tee" connection in the line to the cylinder head to remove the line, Figure 5.
b. Move the push rod sideways or away from the injector to be removed and release the rocker arm. c. Repeat the same procedure at the opposite side of the injector and move the push rod away from the injector before releasing the valve rocker arm. Repeat this operation for each injector to be removed.
2. Close the fuel tank shut-off valve located at the bottom center of the tank. 3. Wipe all dirt from the pressure line connections at the injectors and pump,. Disconnect the lines from the injectors and loosen the attaching bolts at the pump, Cap off the injector inlets and the lines as well.
S. Remove the injector mounting bolts and pull the injectors using Injector Lifting Bar, EIADDN 17098, shown in Figure 6. Screw the knurled knob assembly of the bar into the top of the
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