INSTALL VACUUM PUMP BEARING
Using a press, install a new bearing to the rotor shaft.
INSTALL VACUUM PUMP SHAFT
Using SST and a press, install the rotor shaft to the casing.
Using snap ring pliers, install the snap ring.
Temporarily install the woodruff key, gear and lock nut to the pump.
Using soft jaws on the vise, clamp the gear in the vise.
Tighten the gear lock nut.
INSTALL VACUUM PUMP BLADE A
Apply the engine oil to the rotor, and install the rotor in the casing.
Install the 5 blades with the round end facing outward.
Tech Tips
Apply engine oil to the blades.
Be sure that the blades and rotor surfaces are even.
Place the vacuum pump on the vise, as shown in the illustration.
Note
Do not tighten the vise.
Install 2 new O-rings.
Install the end cover and temporarily install the 3 bolts.
Using a pin punch and hammer, drive in the 2 straight pins.
Using soft jaws on the vise, place the vacuum pump in the vise.
Note
Do not tighten the vise too tightly.
Tighten the 3 bolts.
INSTALL CHECK VALVE SUB-ASSEMBLY
Install a new gasket and the check valve.
INSTALL VACUUM PUMP UNION
Install the vacuum pump union and 2 new gaskets with the union bolt.
Tech Tips
Align and insert the union pin into the matching hole of the casing.