31
Maintenance
Sheave Alignment
Belt Drive Models
• The fan sheave position is set at the factory.
• The fan sheave may have grooves that are not used. The bottom
surface of the motor and fan sheaves must be aligned within
¹⁄₁₆
" of
each other and level within
¹⁄₂
°
(
¹⁄₈
" in 12) in order to not adversely affect
belt and sheave life.
• Alignment can be achieved by placing a straight edge across the top
of the fan sheave making sure that it is level and measuring down to
the bottom surface of both sheaves at four points.
• The belts are to be located in the lowest set of grooves.
▲
▲
▲
Warning
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e
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q
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o
T
b
l
·
t
f
ƒ
m
·
N
H
S
₄⁄
¹
0
2
-
6
8
S
D
S
₄⁄
¹
0
2
-
6
8
D
S
₄⁄
¹
0
2
-
6
8
K
S
₆
₁⁄
⁵
8
1
-
3
1
8
1
F
S
₈⁄
³
6
1
-
2
2
0
3
Torque Values
Schedule of Tower Maintenance
Some maintenance procedures may require maintenance personnel to
enter the tower. One cased face of the tower has a door for access to the
interior of the tower.
The purchaser or owner is responsible for providing a safe method
for entering or exiting the access door. Protective clothing to avoid
cuts from sheet metal should be worn. Wet surfaces and/or dirt can
be slippery. Nonslip sole shoes should also be worn.
Summary of Contents for Primus P11
Page 1: ...Manual 04 131 User Manual Models P11 through P15 ...
Page 39: ...39 ...
