11. DRIVE SHAFT
12. IDLER SHAFT
4. FUEL INLET CONNECTION
5. PREFORMED PACKING
14. PRESSURE VALVE
6. PIPE PLUG
16. COVER DOWEL
17. DOWEL RING
18. GEAR PUMP ASSEMBLY
Figure 6-8. Gear Pump, Exploded View
Inspect. See Figure 6-8.
Compressed air used for cleaning or drying can create airborne particles that may enter the
eyes. Pressure shall not exceed 30 psi (207 kPa). Wearing of goggles Is required to avoid
Injury to personnel.
Clean all parts in dean diesel fuel, regular grade DF2 W-F-800, and blow dry with compressed air.
Inspect all threaded parts for damaged and stripped threads. Repair minor thread damage by
chasing. Repair stripped holes in accordance with paragraph 2-12. Replace stripped capscrews and
Inspect the cover (15, Figure 6-8) for wear and scoring in gear rotation area. Replace the cover if
scoring or a wear edge can be felt with the fingernail.
Check the bushings (9) in the cover (15). Replace a bushing if the bushing maximum inside
diameter is greater than 0.5016 inch (12.741 mm).
Replace the cover dowels (16), or dowel ring (17), if necessary, using an arbor press. Install the
dowel ring (17) so that it bottoms in the recess in the cover (15). Install the cover dowels (16) so that
they will protrude slightly below the surface of the cover, and will extend through the gasket (8) into
the housing (7).