3. Pump

ASSEMBLY/MEASUREMENT





1. Install pump driven gear with chamfered side down. Chamfer is on outer diameter of the gear.
2. Install pump drive gear.





3. Using a depth micrometer, measure pump housing face height to drive gear face and driven gear face height. If equipment is not available, place straight edge across pump face. Check drive gear face to straight edge clearance and check driven gear to straight edge clearance.
Drive gear clearance
Standard: 0.012 - 0.041 mm (0.0004 - 0.0016 inch)
Driven gear clearance
Standard: 0.012 - 0.041 mm (0.0004 - 0.0016 inch)





4. Measure driven gear-to-pump housing clearance.
Clearance
Standard: 0.064 - 0.139 mm (0.0025 - 0.0055 inch)





5. Measure driven gear-to-crescent clearance.
Clearance
Standard: 0.191 - 0.341 mm (0.0075 - 0.0134 inch)





6. Measure drive gear-to-crescent clearance.
Clearance
Standard: 0.128 - 0.278 mm (0.0050 - 0.0109 inch)





7. Clean and install lube relief valve, spring, and retainer.
8. Install pump wear plate. Make sure surface is clean.