33
08
Disassembly and Reassembly
Manual 2006 Rev B p/n 2006
Preparation of End Plates for Assembly
Make sure all parts are clean and free of any
nicks or burrs caused by disassembly. Lip-
seal blowers will require all sleeves or seal
journals to be polished to remove any nicks or
scratches. Failure to polish seal journals will
result in seal leakage or damage.
See Special
Tool Drawings on page 43
for information
and dimensions on seal pressing tools as well
as other assembly tools required.
1. In blowers that have labyrinth seals, position
the labyrinth seals with the slots pointing up
and press one seal into each end plate bore.
2. In blowers that use lip seals as a means of
sealing, apply a smooth coating of Permatex
#2 or silicone sealer to the outer diameter (OD)
edge of the seal shell. Press a lip seal into
each end plate bore, making sure the seal “lip”
is facing up, or toward the oil. Apply grease to
lip seals only.
3. In blowers that require mechanical seals, apply
a smooth coating of silicone to the OD of the
seal shell as in step 2. Position the mechanical
seal with the carbon face up and press the
seal into each end plate bore. Wipe the carbon
with soft tissue and acetone or similar cleaner.
Make sure the seal is fully seated and the shell
is not deformed. Make sure the carbon is not
scarred or cracked. Mating rings will be seated
later in the assembly procedure.
Gear End Assembly
4. Stand the rotors on the free end in the arbor
press. Make sure both keyways are in line and
point to the right. Two-lobe rotors include two
keyways on each shaft. When positioning the
rotors, two keyways (one on each rotor) should
point in the same direction, to the right.
Figure 8-2 – Keyways in line and timing marks matched
Figure 8-3 – Timing marks advanced 3 teeth (reference
marks aligned)
5. Place the gear end plate with the seals
installed on the rotor shafts. Make sure the
threads on the rotor shafts do not damage the
seals.
6. Blowers with mechanical face seals must have
mating rings installed. Make sure the surface
is clean, and gently place a few drops of
clean oil on the seal face for lubrication. Install
the mating ring (lapped surface) against the
carbon face.
7. Lightly coat the rotor shaft with anti-seize
compound or equivalent.
Содержание M-D Pneumatics PD Plus
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Страница 60: ...54 Assembly Drawings Manual 2006 Rev B p n 2006 ASSEMBLY DRAWINGS Model 3200 Standard Seals Cutaway View ...
Страница 61: ...55 Assembly Drawings Manual 2006 Rev B p n 2006 Model 3200 Standard Seals Side and End Views ...
Страница 64: ...58 Assembly Drawings Manual 2006 Rev B p n 2006 Model 4000 Lip Labyrinth Side and End Views ...
Страница 78: ...72 Assembly Drawings Manual 2006 Rev B p n 2006 ...