Nuvair Open Electric Models
Nuvair Page 24
www.Nuvair.com
11.9 Tightening Torque Values –
Should be done at 25 hour maintenance
The table below shows tightening torques for bolts or hexagonal-head screws or socket screws
lubricated with grease, except for specific cases indicated in the manual.
Pipe connections (swivel nuts, compression fittings) should be finger tight, PLUS an additional
1/2
turn
.
6 bolt and 4 bolt torque sequence
11.10 CO Moisture Indicator
This element contains a CO indicating button and a humidity element in the form of a strip about
1/4in. wide and 3/4in. long. These items need to be installed per the manufacturer’s instructions
provided in the sealed foil packaging. When doing routine maintenance it is highly recommended
these indicators are checked for damage and functionality or be replaced.
Tightening Torque Values
Thread
Maximum Torque
M6 - 1/4”
10
Nm (
7
ft-lbs)
M8 - 5/16”
25
Nm (
18
ft-lbs)
M10 - 3/8”
45
Nm (
32
ft-lbs)
M12 - 1/2”
75
Nm (
53
ft-lbs)
M14 - 9/16”
120
Nm (
85
ft-lbs)
M16 - 5/8”
200
Nm (
141
ft-lbs)
