Trane Climate Changer T Series Installation Operation & Maintenance page 91

Table 17. Minimum hex head bolt torque in lb.-ft. (Grade 5 bolts)
Note:
Motor Bearing Lubrication
Motor bearings are factory-lubricated for normal life. In the case of a double-shielded
bearing, the grease provided is that which is in the bearing. To regrease motors without
grease fittings:
1. Remove the bearing brackets.
2. If the original bearing is to be relubricated, remove the shield opposite the rotor.
3. Lubricate the bearing and add grease to the bearing chamber. The chamber should
Note: Lubricate the bearing according to the motor manufacturer's recommendations
4. Reassemble the motor.
Fan Motor Inspection Inspect fan motors periodically for excessive vibration or
temperature.
CLCH-SVX06A-EN • T-Series Climate Changer Air Handler IOM
Size (inches)
1/4-20
1/4-28
65/16-18
5/16-24
3/8-16
3/8-24
7/16-14
7/16-20
1/2-13
1/2-20
9/16-12
9/16-18
5/8-11
5/8-18
3/4-10
3/4-16
7/8-9
7/8-14
1-8
1-14
Soft metric conversions are not acceptable for screw and hex sizes.
a. Do not replace.
b. Flush old grease from bearing with suitable solvent.
be three-quarters full of grease. (An alternate method is to replace the old bearing
with a new double-shield pre lubricated bearing.)
and use the manufacturer-recommended grease.
Thread Designation
UNC
UNF
UNC
UNF
UNC
UNF
UNC
UNF
UNC
UNF
UNC
UNF
UNC
UNF
UNC
UNF
UNC
UNF
UNC
UNF
Routine Maintenance
Minimum Torque
6
7
14
16
24
28
42
45
69
83
99
118
150
176
254
301
358
422
500
602
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