SPX Cooling Technologies MARLEY HP700 - Manual (Page 6)

6
5–Position the bushing-hub assembly over the Geareducer fan
shaft. Carefully align the bushing bore keyway with the previously
installed shaft key—or if using a Type 2 split taper bushing, align
the shared hub/bushing key with the fan shaft keyway. Lower the
assembly onto the shaft. The assembly must slide onto the output
shaft enough to ensure the shaft key runs the entire length of the
bushing bore. It may be necessary to slightly wedge open the split
taper bushing for easier engagement of the fan shaft into the bush-
ing bore. This can be accomplished by driving a wedge into the
bushing flange split.
6–Using a torque wrench, tighten the stainless steel cap screws
sequentially until each is tightened to 140 ft·lb
ƒ
(190 N·m). When
the cap screw torque is at or near 140 ft·lb
ƒ
(190 N·m), make at
least two more sequential rounds to assure all cap screws are to
the required torque value.
Figure 4
Fan Hub Installation
Type 1 U1 Split Taper Bushing
Type 2 U1 Split Taper Bushing