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SECTION 6 - MAINTENANCE
CHECK THE CASING INTERIOR FOR
FOREIGN MATERIAL BEFORE CLOSING.
The casing cover should be carefully lowered. If it ap-
pears to "hang up", use a slight rocking motion to assist
proper mating of parts. Use the dowels on guide rods
to assist positioning. The bolting should be tightened
uniformly, in about three stages, finally achieving ap-
proximately uniform torque on all bolts of the same
size. If the joint has been properly serviced, it should
be as tight as before the inspection.
ELECTRICAL CONTROLS
Periodically check that all pressure and temperature
data fields on the OptiView™ Control Center screens
display values as expected for the present ambient tem-
peratures and operating conditions.
The following torques are to be applied to socket head
and hex head capscrews, bolts and nuts of SAE grade
8, alloy steel and 17-4 Ph stainless steel.
TABLE 5 - TURBINE TIGHTENING TORQUES
(WITHOUT WASHERS)
SIZE
1/4"
5/16"
3/8"
7/16"
1/2"
9/16"
5/8"
3/4"
7/8"
1"
1-1/8"
1-1/4"
1-3/8"
1-1/2"
80
FINAL TORQUE
130 in.- lbs.
275 in.- lbs.
490 in.- lbs.
70 ft.- lbs.
100 ft. - lbs.
145 ft.- lbs.
200 ft. - lbs.
350 ft. - lbs.
570 ft. - lbs.
850 ft. - lbs.
1210 ft. lbs.
1700 ft. - lbs.
2225 ft. - lbs.
2950 ft. - lbs.
The following torques are to be applied to socket
head and hex head capscrews, bolts, and nuts of
SAE Grade 8, alloy steel and 17-4 Ph stainless
steel.
TABLE 6 - TURBINE TIGHTENING TORQUES
(WITH WASHERS)
SIZE
1/4"
5/16"
3/8"
7/16"
1/2"
9/16"
5/8"
3/4"
7/8"
1"
1-1/8"
1-1/4"
1-3/8"
1-1/2"
FORM 160.67-O2
ISSUE DATE: 10/9/2020
FINAL TORQUE
120 in.- lbs.
250 in.- lbs.
445 in.- lbs.
60 ft.- lbs.
90 ft. - lbs.
130 ft.- lbs.
180 ft. - lbs.
315 ft. - lbs.
515 ft. - lbs.
770 ft. - lbs.
1100 ft. lbs.
1545 ft. - lbs.
2025 ft. - lbs.
2685 ft. - lbs.
JOHNSON CONTROLS
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