Daikin Skyline OAH003GDAC Installation And Maintenance Manual page 66

Table 35: Screw Torque Values
Socket-head cap screws
Nominal
screw size
(dia—thds/in)
Seating torque
(in–lbs)
1/4–20NC 150
5/16–11NC 305
3/8–16NC 545
1/2–13NC 1300
5/8–11NC N/A
Figure 91: Sheave Alignment
Must be
parallel
Bearing
Motor
Must be
parallel
Figure 92: Adjustable Sheave Components
IM 777-18 • SKYLINE OUTDOOR AIR HANDLER
Flat-head
socket screws
Seating torque Seating torque
(in–lbs) (in–lbs)
12.5 100
25.4 200
45.4 350
108.3 N/A
N/A N/A
Center lines
must coincide
Adjustable
Sheave
A d j u s t a b l e
C e n t e r - F l a n g e
S p l i t T a p e r
B u s h i n g
C a p s c r e w s
( D o N o t R e m o v e )
Hollow-head set screws only
Lengths equal or greater than dia .
Seating torque Seating torque
(in–lbs) (in–lbs)
87 7.3
165 13.8
290 24.2
620 51.7
1225 102.1
F i x e d
( 2 ) L o c k i n g
C e n t e r - F l a n g e
S e t s c r e w s " A "
O u t e r
L o c k i n g - R i n g
S t a t i o n a r y
I n n e r L o c k i n g - R i n g
E n d - F l a n g e
66
s M
ervICe and aInTenanCe
For lengths (L) less than dia .
Length (L) Seating torque
(in–lbs) (in–lbs)
3/16 50
1/4 90
1/4, 5/16 150, 250
N/A N/A
N/A N/A
F l a t h e a d S o c k e t S c r e w s
( D o N o t R e m o v e )
( 3 ) H o l e s f o r
S p a n n e r W r e n c h
o r D r i f t
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