Quincy Compressor QSB Series, Instruction Manual

Page: 31 / 87

Section VI - Servicing
Quincy Compressor ® - QSB/T ™
27
Preparation for New Seal Installation
• Inspect the compressor shaft for burrs or deep
scratches at the wear sleeve area. Using a 100 grit
emery cloth, lightly sand horizontally any rust or
Loctite
™ on the shaft. Using a fine file or emery
cloth, deburr the key area of the rotor shaft. Cover
the keyway with masking tape to prevent damage to
the new seal during installation.
• Clean the seal adapter with fast drying solvent.
Assure that the scavenge drain in the seal adapter is
clean and open. Place the outer face of the seal
adapter on a flat, hard surface.
• Remove the new triple lip seal from the package and
inspect for damage or imperfections on the seal lips.
• Apply a thin coat of Loctite
™
290 to the outer steel
case of the seal and position the seal in the seal
adapter bore.
• Insert the proper seal driver over the seal. Insert the
proper wear sleeve driver in the seal driver and tap
the new seal into the bore with a medium sized
hammer.
• Preheat the wear sleeve (in a small oven) to 350°F.
Do not preheat in warm oil.
• Apply a thin film of Loctite ™ to the inner diameter of
the wear sleeve and immediately install on the
compressor shaft using the proper wear sleeve driver.
Drive the wear sleeve on the shaft until the driver
bottoms on the shaft shoulder.
Seal Installation
•
Apply a thin coat of compressor fluid to the outer
face of the wear sleeve and seal lip.
•
Slide the proper seal installation sleeve against the
wear sleeve with the taper toward the end of the rotor
shaft.
•
Install a new o-ring on the seal adapter and lubricate
with compressor fluid.
•
Install a new o-ring around the scavenge port (use
petroleum jelly to hold the o-ring on the seal adapter
face during installation).
•
Carefully slide the seal adapter with the new seal
installed over the end of the rotor shaft and up against
the adapter bore.
•
Using care not to damage the o-ring, evenly draw the
adapter into the bore, install the four retaining bolts
and tighten to the specified torque.
•
Remove the installation sleeve.
•
Apply a thin film of compressor fluid to the o-ring
and seal lip of the outer fluid slinger.
•
Install the outer slinger over the end of the rotor shaft
and push into the scavenge bore using both thumbs.