Instruction/ maintenance manual of the product HP700 SPX Cooling Technologies
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/ Mar le y HP70 0 0 Fan / User Manual 97 -1342B.
2 Order No. _______________________________________ T rial Pitch Angle _________________________________ Final Pitch Angle _________________________________ Speed-rpm _________________________________.
3 ➠ Note Fan Hub Installation The following instructions detail the process for installing a Marley HP7000 fan on a Marley Gear educer ® with a taper ed fan (output) shaft utilizing a bolted fan hub retention plate or a straight fan shaft using a split taper bushing.
4 TAPERED SIDE OF KEY GEAREDUCER FAN SHAFT 1 1 / 2 " 1 3 / 8 " 1 1 / 2 " 5 / 8 " MIN KEY FAN HUB LOCKING STRAPS RETENTION PLATE RETENTION BOLTS Fan Hub Installation Figure 3 36 and 38 Geareducer Figure 2 36 and 38 Geareducer 3–Raise the hub assembly above the fan shaft for installation.
5 The U1 split taper bushing provided with the fan installation kit will be either a T ype 1 or a T ype 2 bushing. A T ype 1 bushing will use the fan shaft key provided with the Geareducer . A T ype 2 bushing uses an integral key that is shared by the output shaft and the fan hub keyways.
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 T ype 2 split taper bushing, align the shared hub/bushing key with the fan shaft keyway .
7 BLADE CLAMP FLAT WASHER MACHINE BOLT FAN BLADE HUB PLATE HUB PLATE FLAT WASHER LOCKING HEX NUT OR HEX NUT AND LOCK WASHER Figure 5 Note Marley HP7000 fan blades are manufactured to equal moment weight and blade clamps to equal static weight. The blades and clamps can be installed in any position without affecting fan balance.
8 Figure 6 Adjusting Fan Blade Pitch The trial pitch is the calculated setting for design conditions (water rate , heat load, air density , and brake horsepower) . The trial pitch is provided (see page 2). 1–Select a position on the fan circumfer ence and rotate each blade to this common location when setting or checking blade pitch.
9 141 102 143 142 300 145 142 146 144 142 Hub Cover Installation Install the hub cover as shown in Figure 1 and Figure 7 . Tighten all hex nuts to 15 ft·lb ƒ (20 N·m) torque. Figure 7 Fan Maintenance Preventative maintenance will prolong useful life and assure contin- ued trouble-free operation.
10 Service Proper identification of your fan is necessary to insure you r eceive correct r eplacement parts. The Marley cooling tower serial number can be used to determine the fan and any components installed and maintained as original equipment on a Marley cooling tower .
11 Motor Load The corrected horsepower should be close to but not exceed the contract horsepower specified by Marley . Determine corr ected horsepower using the following equation.
Manual 9 7-1342B 7401 WEST 129 STREET | OVERLAND PARK, KANSAS 66213 UNITED STATES | 913 664 7400 | spxcooling@spx.com | spxcooling.com In the interest of technological progress, all products are subject to design and/or material change without notice.
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