GOVERNOR GP-UNIT INJECTOR 1094588 - Caterpillar

Shaft, IGR Inner, And Rotary Valve Assembly
If the shaft assembly has been disassembled intact proceed to the next section, Assembly of Complete Motor. Place the rotary valve on the shaft spline with the "T" shaped slots on first. Next put the IGR inner element on the shaft spline with the semi-circular roll pockets between the rotary valve ports. Now install the snap ring which holds the inner element and rotary valve on the shaft. Be sure not to over extend the snap ring during assembly. The snap ring should be snug in the groove when finally assembled.Assembly Of Complete Motor
Prior to assembly, all parts must be cleaned with a suitable solvent and free of nicks and burrs.Mount the body with the pilot and bearing down in a vise or other holding mechanism. Check the output shaft end for burrs and scratches, especially on a used keyed shaft. De-burr if necessary. The shaft end must be free of burrs because it slides through the quad ring seal and can cut it. Install the shaft assembly into the body. Place the contour member of the IGR over the inner element and insert the seven rollers into the inner pockets (large diameter rolls). Lightly oil the square ring seal and place in the body groove. Place the check balls over the two 3.2 mm (0.125 in.) diameter holes in the locating ring. Be sure the check balls do not fall into the tapped holes. Place the locating ring section of the IGR onto the body with the check balls facing downward over the check ball holes. Align the eight bolt holes in the locating ring with the eight holes in the body. The holes align in only one position.
Be sure not to dislodge the body square ring seal while moving the locating ring.
Install the eight locating ring rollers (small diameter rolls) into their pockets. Place the other lightly oiled square ring seal into the groove in the cover and place the cover over the shaft end and align the bolt holes. Install the eight bolts with washer seals into the bolt holes and tighten to 41 N-m (30 ft.-lb.). The motor is now ready for installation.