Applied Air IOMDFCDFM-1, Руководство по эксплуатации

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Browning Bearing Set Screw Torque Values
Model# Shaft Size Torque (in-lbs)
Set Screw
VPS-212 3/4 66 - 85
VPS-214 7/8 66 - 85
VPS-116 1 66 - 85
VF2S-116 1 66 - 85
VPS-219 1 3/16 66 - 85
VF4S-219 1 3/16 66 - 85
VPS-220 1 1/4 126 - 164
VPS-223 1 7/16 126 - 164
VPS-323 1 7/16 126 - 164
VF4S-227 1 11/16 126 - 164
VPS-327 1 11/16 228 - 296
VPS-231 1 15/16 228 - 296
VF4S-231 1 15/16 228 - 296
VPS-331 1 15/16 228 - 296
VPS-235 2 3/16 228 - 296
VF4S-235 2 3/16 228 - 296
VPS-236 2 1/4 228 - 296
VPS-239 2 7/16 228 - 296
VF4S-243 2 11/16 348 - 452
VPS-343 2 11/16 348 - 452
VPS-347 2 15/16 348 - 452
BOA Concentric
VPB-231 1 15/16 220 - 240
VPB-331 1 15/16 220 - 240
Spherical Roller
USFB5000 1 3/16 165
USFB5000 1 7/16 165
USFB5000 1 11/16 165
USFB5000 1 15/16 295
USFB5000 2 3/16 295
USFB5000 2 7/16 295
USFB5000 2 11/16 655
USFB5000 2 15/16 655
Sealmaster Sleevloc
USRB5000A 115C 1 15/16 30
When replacing bearings refer to the manufacturer’s
installation instructions included with the bearing.
Typical Procedure For Changing The Shaft And
Bearings
1. Remove protective shaft coating.
2. Remove the drive side sheave.
3. Disconnect the grease lines from the existing
bearings.
4. Remove mounting bolts for bearings and remove
any shims.
5. Identify the total shim thickness at each bearing
and mark the bearing mount for future reference.
6. Loosen bearing and blower wheel shaft setscrews.
7. Remove the shaft from the unit by sliding the
bearings and blower wheel(s) along the shaft as
the shaft is extracted. Unless a blower wheel is
damaged, it should be unnecessary to remove the
blower wheel from the blower housing.
8. Slide the new shaft through the fi rst blower wheel
hub.
9. Once the shaft is completely through the fi rst
blower wheel, slide a bearing onto this end of the
shaft by pushing on the inner ring. Do not use a
hammer.
10. Slide the shaft through the next blower wheel hub
and add another bearing. Continue this procedure
until the shaft is through all of the blower wheels.
11. Place a bearing on each end of the shaft.
12. Replace the shims as required.
13. Install bearing mounting bolts (do not tighten) and
check alignment.
14. Tighten the bearing bolts to recommended torque
shown below and reattach grease lines. (When
installing USRB5000A 115C bearing, see note of
following page).
15.
ASTM A307 Recommended
Tightening Torque
Bolt Size TPI ft lbs
1/4 20 4
5/16 18 7
3/8 16 13
7/16 14 21
1/2 13 32
9/16 12 46
5/8 11 64
16. Adjust the shaft so the blower hub keyways are in
the middle of the shaft keyways.
17. Adjust the shaft so it protrudes past the non-drive
end bearing, the blower sheave keyway mates with
the shaft keyway and the drive side sheave can be
aligned with the motor sheave. Ideally, the blower
sheave should be as close to the drive side bearing
as possible, the motor sheave should be as close
to the motor housing as possible, and the belts
should be straight.
18. Be sure the shaft does not rub on or interfere with
the closing of the access door.
19. Align all bearing setscrews, so that the same
setscrew on each bearing is pointed in the same
direction as the other bearings’ setscrews.
20. Check shaft for freedom of rotation by rotating shaft
by hand in both directions.
21. Place a drop of “BLUE” Loctite on the bearing
setscrews and tighten all of the setscrews. Follow
the mounting instructions procedure on the inside
of the bearing box or accompanying instructions for
proper tightening and torque values.
22. Align the blower hubs’ keyway with those in the
shaft. Be sure the clearance between the blower
wheel and blower housing is the same on each
side.
23. Rotate the shaft by hand to insure free operation.
Correct any rubbing of the blowers on the housings.