Marley Aquatower 490A, Руководство пользователя

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2. Make sure the fan is tightly secured to the bearing housing shaft and
that it rotates freely. Make sure the bearing housing is secured to its
support.
. Attach motor to motor base with four bolts, flat washers, lock wash-
ers and nuts provided, see Figure 2 . You may want to loosen the
adjusting bolts and raise the motor base so you can reach under the
motor base to tighten the motor hold-down bolts.
4. Apply a rust preventive coating to the motor shaft to prevent shaft
corrosion and to ease sheave installation and removal.
5. Install motor sheave and align it with fan sheave. Motor support
brackets are slotted to assist in alignment. See Figure 2 . A plumb
line will be helpful in aligning sheaves. See Figure 3 .
6. Remove the fan guard and fan cylinder splice plate (Series 4900 only)
at the top of the fan cylinder. Install the belt over the fan by passing
the belt over the fan and rotating the fan blades past the belt. Install
the belt onto the sheaves.
Figure 3
Installation
PLUMB LINE
SHEAVES MUST BE PARALLEL TO
EACH OTHER AND IN THE SAME
PLANE OF OPERATION
FAN SHEAVE
MOTOR SHEAVE