32
9.2.2 GEAR END ASSEMBLY
3. Stand rotors [1] on arbor press table with gear end
shafts up. See Figure 13. Two keyways should
point in the same direction, to the right.
4. Carefully install gear end plate over rotor shafts.
NOTE
The drive rotor should always be on the left side. Make sure the end plate
feet are facing in the proper direction so the assembled unit will have the
same drive shaft location as before.
5.
90/91 Series
- Check lapped surface of seal mating ring to be sure it is perfectly clean.
Use soft tissue and cleaning agent if necessary. Place a few drops of lubricating oil on its
surface and install on shaft with lapped surface coming to rest on top of carbon. Gently press
with fingers to insure compression is taking place and ring is not hung up for any reason.
92/93 Series
- Slide seal slinger [238] over shaft. Also install spacer [129] if two-piece.
6. Lubricate shafts and press the double row ball bearings [9] onto rotor shafts and into end plate bores.
NOTE
These bearings have been flush ground at the factory. The inner race will
have a black dot etched on the surface. This dot must be up and visible
when bearings are installed. Secure with bearing retainers [14] or [14 & 15]
on model 4000, locks, and cap screws [61 & 62].
7. Check clearance between the face of the end plate and rotor lobes. See
Assembly Clearances
table for
correct gear end clearances. If clearances are not within specifications, recheck parts to find the cause
of improper clearances before proceeding.
9.2.3 INSTALLATION OF TIMING GEARS
8. Insert gear keys [24] in their proper location. Use the two keyways facing to the right. A tight fit is
required. Coat shafts and keys with lubricant.
9. Install drive gear (right hand helix) on drive rotor (left side). To install driven gear, align reference
marks as shown in Figure 12. Install driven gear carefully to avoid damaging any teeth when engaging
opposite gear. Secure with gear lockwasher [36] and lock nut [35].
NOTE
All timing gears must be used in sets, as they are matched and serially
numbered.
10. Remove assembly from press and stand on work table with gears down. Place blocks under end plate
to prevent assembly from falling over. Drive gear should remain on left side.
Figure 13 - Keyways position
DRIVE
Keyways
Facing
Same
Direction
Содержание M-D Pneumatics 7010
Страница 43: ...43 NOTES ...
Страница 50: ...50 3200C CUTAWAY DRAWING 3200 90C 91C 92C 93C 1 OF 2 A ...
Страница 51: ...51 3200C CONFIGURATIONS DRAWINGS 3200 90C 91C 92C 93C 2 of 2 A ...
Страница 54: ...54 5500C CUTAWAY DRAWING 5500 90C 91C 92C 93C 1 OF 2 E OIL LEVEL SIGHT GAUGE DETAIL ...
Страница 55: ...55 5500C CONFIGURATIONS DRAWINGS 5500 90C 91C 92C 93C 2 of 2 E ...
Страница 56: ...56 7000C CUTAWAY DRAWING 7000 90C 91C 1 OF 3 ...
Страница 57: ...57 7000C CONFIGURATIONS DRAWING 7000 90C 2 OF 3 ...
Страница 58: ...58 7000C CONFIGURATIONS DRAWING 7000 91C 3 OF 3 7000 91C 7013 SHOWN ...
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