124
CLCH-SVX07C-EN
Routine Maintenance
Refer to
Table 37
for minimum torque of motor mounting and bearings bolts.
Motor Bearing Lubrication
Obtain an IOM from the motor manufacturer for the specific motor installed. The motor
manufacturer’s recommendations take precedence for all matters related to the start-up and
routine maintenance of the motor.
Motor grease fittings have been removed from factory-installed motors in compliance with UL
regulations. Motor bearings require periodic maintenance throughout their life. Many different
styles of motors come as standard selections, so please obtain the motor IOM and use the
manufacturer-recommended grease.
Fan Motor Inspection
Inspect fan motors periodically for excessive vibration or temperature.
Coils
All coils should be kept clean to maintain maximum performance.
Steam and Water Coils
WARNING
Hazardous Chemicals!
Coil cleaning agents can be either acidic or highly alkaline. Handle chemical carefully. Proper
handling should include goggles or face shield, chemical resistant gloves, boots, apron or suit as
required. For personal safety refer to the cleaning agent manufacturer’s Materials Safety Data
Sheet and follow all recommended safe handling practices. Failure to follow all safety
instructions could result in death or serious injury.
Table 37. Minimum hex head bolt torque in lb.-ft. (Grade 5 bolts)
Size (inches)
Thread Designation
Minimum Torque
1/4-20
UNC
6
1/4-28
UNF
7
65/16-18
UNC
14
5/16-24
UNF
16
3/8-16
UNC
24
3/8-24
UNF
28
7/16-14
UNC
42
7/16-20
UNF
45
1/2-13
UNC
69
1/2-20
UNF
83
9/16-12
UNC
99
9/16-18
UNF
118
5/8-11
UNC
150
5/8-18
UNF
176
3/4-10
UNC
254
3/4-16
UNF
301
7/8-9
UNC
358
7/8-14
UNF
422
1-8
UNC
500
1-14
UNF
602
Note:
Soft metric conversions are not acceptable for screw and hex sizes.
Summary of Contents for AM4A0A18S11SA Series
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Page 100: ...96 CLCH SVX07C EN Installation Electrical Figure 84 Typical VFD wiring schematic ...
Page 101: ...CLCH SVX07C EN 97 Installation Electrical Figure 85 Typical starter wiring schematic ...
Page 135: ...CLCH SVX07C EN 131 Notes ...
Page 146: ...10 1 2 STEP 8 Lift the Coil section up and away from the Blower section Set aside ...
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