TM 5-3895-374-24-2
8.
Place output hub seal carrier in position without
shims and install two carrier screws diametrically
opposed. Torque each screw to 25 lb.-ins. Rotate
the output hub to roll in the bearings and then torque
each screw once to 50 Ib.-ins. Do not retorque
screws. Again turn output hub to roll in the
bearings. With a feeler or taper gage, measure the
gap between the housing and the carrier, clockwise
from and next to each screw. To determine the
required shim thickness, add the average of the two
feeler gage readings to the constant given in Table
4. Remove carrier and install the required shims.
Note: Total shim thickness per carrier should not
include more than .009" plastic shims and each
plastic shim should be inserted between two metal
shims. Place a 1/8" diameter bead of Dow Corning
RTV732 sealant on the face around the I.D. of the
end shim (sealant is to be between reducer housing
and shim) and install carrier on reducer housing.
Torque carrier bolts to value shown in Table 4.
Output hub should have an axial end play of .001" to
.003".
9.
Adjust the countershaft bearings using the same
method as in step 8 above. The axial end play
should be .001" to .003.
Table 4-Bolt Tightening Torque Values.
Screw
Shaft
Seal
Conveyor
Housing
Adapter
Retainer
Carrier
Drive
Bolts
Bolts
Bolt
Bolts
Size
(in.-lbs.)
(in.-lbs.)
(in.-lbs.)
(in.-lbs.)
SCXT309A
SCXT315A
600
900
3120
204
SCXT325A
SCXT409A
SCXT415A
600
1800
3120
360
SCXT425A
SCXT509B
SCXT515B
900
1800
3120
360
SCXT525B
Table 5-Manufacturers Part Numbers
For Replacement Output Hub Bearings.
TORQUE ARM
Output Hub Bearing
Reducer
Drive
DODGE
Timken
Size
Part Number
Part Number
SCXT309A
SCXT315A
402272
LM814849
SCXT325A
403127
LM814810
SCXT409A
SCXT415A
402268
498
SCXT425A
403163
492A
SCXT509B
SCXT515B
402193
42381
SCXT525B
403016
42584
10. Again using the same procedure as in step 8, adjust
the input shaft bearings, except the axial end play
should be .002" to .003.
11. Apply a sealant to the input shaft cover gasket and
install input shaft cover in right-hand housing half.
Install input and output seals. Extreme care should
be used when installing seals to avoid damage due
to contact with any sharp edges on the input shaft or
output hub. Possibility of damage and consequent
oil leakage can be decreased by covering all sharp
edges with tape or paper prior to seal installation.
Fill cavity between seal lips with grease. Seals
should be pressed or tapped with a soft hammer
evenly into place in the carrier applying pressure only
on the outer edge of the seals. A slight oil leakage at
the seals may be evident during initial running in but
should disappear unless seals have been damaged.
12. Reassemble and install the Screw Conveyor Drive in
accordance with the instruction in the front of this
manual.
Table 6-Manufacturers Part Numbers
For Replacement Countershaft Bearings.
TORQUE-ARM
Countershaft Bearing
Countershaft Bearing
Reducer
Input Side
Adapter Side
DODGE
Timken
DODGE
Timken
Size Part No.
Part No.
Part No.
Part No.
SCXT309A
SCXT315A
402273
15102
402273
15102
SCXT325A
403094
15245
403094
15245
SCXT325A
SCXT409A
402000
M86649
402000
M86649
SCXT425A
403000
M86610
403000
M86610
SCXT509B
SCXT515B
402203
2789
402203
2789
SCXT525B
403027
2720
403027
2720
Table 7-Manufacturers Part Numbers
For Replacement Input Shaft Bearings.
TORQUE-ARM
Countershaft Bearing
Countershaft Bearing
Reducer
Input Side
Adapter Side
DODGE
Timken
DODGE
Timken
Size Part No.
Part No.
Part No.
Part No.
SCXT309A
402204
LM48548A
402273
15102
SCXT315A
403139
LM48510
403094
15245
SCXT325A
SCXT409A
402280
2788
402142
26118
SCXT415A
403027
2720
403102
26283
SCXT425A
SCXT509B
402144
28579
402269
350
SCXT515B
403104
28521
403073
352
402144
28579
402266
350A
SCXT525B
403104
28521
403073
352
page 3-795