TM 5-3895-374-24-2
5. Mesh output hub and countershaft together and place
in housing half. Place input shaft assembly in housing
half. Tap lightly with a soft hammer.(rawhide not lead
hammer) until bearings are properly seated in housing.
Make sure that the snap rings on the O.D. of the
bearings come into contact with the housing.
6. Clean housing flange surfaces on both halves,
making sure not to nick or scratch flange face. Place a
new bead of gasket eliminator on flange face and spread
evenly over the entire flange leaving no bare spots.
7. Place housing half in position over dowel pins and tap
with a soft hammer (rawhide not lead hammer) until
housing halves are together. Install housing bolts and
tighten evenly. The final wrench torque for housing bolts
is listed in table 3. Place output hub and on TXT 5A the
input shaft bearing cup in other housing half. Make sure
cup is properly seated in housing.
8. Install the output hub seal carrier and the shims
removed at disassembly. Tighten carrier cap screws
while rotating the output hub to make sure the bearings
do not bind. If the bearings start to bind, add more
shims. Torque the carrier bolts to the value shown in
table 3. Attach an indicator to the housing and set the
gage on the top end of the output hub. Insert a pry bar
under the other end of the hub and force it upward. The
axial end play of the output hub will be given by the indicator
reading. Add or remove shim stock to attain a reading of
from .001" to .003". Remove seal carrier and place a 1/8"
diameter bead of Dow Corning RTV732 sealant on the face
around the I.D. of the last shim (sealant is to be between
shim and reducer housing). Reinstall output hub seal carrier
and tighten carrier screws to torque shown in table 3. On the
TXT 5A reducer input pinion use the same method to adjust
the bearings as used for the output except the bearing
adjustment should be .002 to .003.
9. Install oil seals. Extreme care must be observed when
installing seals on input shaft and output hub to avoid contact
with any sharp edges. This danger of damage and
consequent oil leakage can be decreased by covering all
sharp edges with adhesive tape or paper before installing
seals. Chamfer or de-burr housing bore if end of bore is
sharp or rough. Fill cavity between lips of seal with grease.
Seals should be pressed or topped evenly into place with a
soft hammer (rawhide not lead hammer) applying force only
on the outer edge of the seals. A slight oil leakage may be
evident at the seals during initial running in, but will disappear
unless seals have been damaged.
10. Reassemble and install the Screw Conveyor Drive in
accordance with the instructions in the front of this manual.
Table 3-Bolt Tightening Torque Values.
SCREW
Shaft
Output Hub
CONVEYOR
Housing
Adopter
Retainer
Seal Carrier
DRIVE
Bolts
Bolts
Bolt
Bolts
SIZE
(in-lbs)
(in-lbs)
(in-lbs)
(in-lbs)
SCXT109
SCXT115
360
360
1800
200
SCXT125
SCXT209
SCXT215
360
600
1800
360
SCXT225
SCXT309
SCXT315
600
900
3120
360
SCXT325
SCXT409
SCXT415
600
1800
3120
360
SCXT425
SCXT509A
SCXT51SA
900
1800
3120
360*
SCXT525A
*Input Seal Carrier
Table 4-Manufacturers Part Numbers
for Replacement Output Hub Bearings.
SCREW
CONVEYOR
Output Hub Bearing
DRIVE
DODGE Part Number
Timken Port Number
SIZE
Cone
Cup
Cone
Cup
SCXT109
SCXT115
402246
403149
JLM506849
JLM506810
SCXT125
SCXT209
SCXT215
402247
403150
JLM710949
JLM710910
SCXT225
SCXT309
SCXT315
402003
403003
JLM714149
JLM714110
SCXT325
SCXT409
SCXT415
402250
403153
JM716649
JM716610
SCXT425
SCXTS09A
SCXT515A
402007
403007
JM720249
JM720210
SCXT525A
Table 5-Manufacturers Part Numbers
for Replacement Countershaft Bearings
SCREW
Counter Bearing
Countershaft Bearing
CONVEYOR
Input Side
Adapter Side
DRIVE
DODGE
SKF
DODGE
SKF
SIZE
Part Number
Part Number
Part Number
Part Number
SCXT109
SCXT115
424006
304SG
424006
304SG
SCXT125
SCXT209
SCXT215
424000
305MG*
424000
305MG*
SCXT225
SCXT309
SCXT315
SCXT325
424002
306MG*
424000
305MG*
SCXT409
SCXT415
424073
5306MG*
424069
5305MG*
SCXT425
SCXT509A
SCXTS15A
424010
308MG*
424010
308MG*
SCXT525A
Table 6-Manufacturers Part Numbers
for Replacement Input Shaft Bearings
SCREW
Counter Bearing
Countershaft Bearing
CONVEYOR
Input Side
Adapter Side
DRIVE
DODGE
SKF
DODGE
SKF
SIZE
Part Number
Part Number
Part Number
Part Number
SCXT109
SCXT115
424112
205SG*
424111
204SG
SCXT125
SCXT209
SCXT215
424019
206MG*
424090
305SG*
SCXT225
SCXT309
SCXT315
424087
207MG*
424000
305MG*
SCXT325
SCXT409
SCXT415
424089
208MG
*424002
306MG*
SCXT425
SCXTS09A
403104
28521A
403073
352’
SCXT515A
402144
28579
402266
550A
SCXT525A
* MRC BRG
t
Timken Brg
page 3-784
