31
Manual 2008 Rev A p/n 2008
DISASSEMBLY OF BLOWER
1. Drain lubrication, and disconnect or remove the
external oil lines, filter, and cooler if applicable.
Port fitting may also be removed. Match-mark
all parts so they can be properly reinstalled
to their original position when blower is
reassembled.
Free End Disassembly
2. Remove cap screws and the oil pump
mounting plate. It is not necessary to remove
the oil pump from the plate unless the pump is
to be replaced.
3. Support the free end cover with the lifting sling
and remove cap screws. The cover flange has
two tapped holes for jacking screws to assist in
removal.
4. Remove cap screws, oil pump drive shaft, and
oil slinger or slinger and spacer.
5. Remove retainer rings from both rotor shafts.
Gear End Disassembly
(Series 17/19/46/55/57/81/82/86)
6. Remove flat-head socket screws. Use two jack
screws and remove seal adapter. Tap out lip
seal and discard O-ring.
Gear End Disassembly
(Series 64/66/67/69)
7. Remove cap screws and water cooling hosing.
Discard O-ring. Remove cap screws. Use two
as jacket screws and remove seal housing.
Tap out seal and discard O-ring. Remove
mating ring portion of seal.
8. The gear end cover also has jacking screw
holes but it must slide off a spherical bearing
and two dowel pins. Use appropriate length
screws and a support sling.
See Figure 13-2
on page 43
for a bearing installation tool,
which can be helpful in cover removal.
9. Remove retainer ring and pull bearing from
drive shaft.
10. Remove cap screws and the drive shaft. Jack
screw holes are available for easy removal.
11. Remove cap screws and rotor shaft washer.
On the top drive unit only, a slinger sandwiched
between two washers is used on the lower
rotor. Note the position before removing.
12. Remove the timing gears. Either gear may be
used as the drive gear. Normally the solid gear
(right-hand helix) will be the drive gear. The
two-piece gear (gear shell and hub) will be the
driven gear. Align the match marks and remove
the cap screws in the two-piece gear. Using a
suitable puller, remove the gear shell from the
hub. Never use excessive force to remove.
A slight rocking motion while pulling the gear
will ensure that jamming has not occurred. If
jamming does occur, tap gear back on until
free moving and recheck location of the timing
DISASSEMBLY AND REASSEMBLY
08
Содержание PD Plus 9000 Series
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