SPX 07-1126 - Manuals - manualsarea.com

Page 3 - Contents

3 Contents General Information ...................................................................... 4 Installation .................................................................................... 5 Operation .................................................................................... 1...

Page 4 - General Information; Description

4 General Information Description The Marley Ultra Low-Noise series of fans represent the top in the new generation of super low noise fans—the FRP blades have been developed to meet the most stringent noise limitations. The fans permit variable pitch adjustment at standstill and feature a simplifie...

Page 5 - Installation; Rotation and Flow Direction; ––Remove blade pillow block and fasteners; Figure 1

5 Installation Rotation and Flow Direction The rotation direction is correct when the airflow moves from the convex back (suction surface) of the blade, to the concave side (pressure surface). Figure 1 shows the conventional clockwise di-rection of rotation and normal direction of airflow as viewed ...

Page 6 - Figure 2

6 Installation 10 B 10 A 1 5 9 3 7 2 6 10 4 8 Figure 2

Page 7 - • As for the hub with cylindrical bore, the hub is bored to attach; Warning

7 Installation Torque hub assembly bolts 11 according to the following table: Fan Diameter inches Flange Type Bolt Type Bolt Torque N·m ft·lb 84" to 96" Type 115 M16 cl. 8.8 230 169 M16 cl. A4-70 126 93 M16 cl. A4-80 168 124 108" to 168" Type 190 M20 cl. 8.8 447 329 M20 cl. A4-70 246...

Page 8 - The drive shaft end must remain recessed at least; Caution

8 Installation The drive shaft end must remain recessed at least 1 ⁄ 32 " in the hub bore to prevent dangerous rotor vertical translation once retaining bolt 16 has been tightened to the shaft end. Never power the drive shaft with bushing bolts not torqued or bushing improperly positioned. 4––In...

Page 9 - according to the following tables,; Figure 3; Bolt Pillow Block Tightening Order

9 Installation Rotate the blade on its axis until the required pitch angle is ob-tained.Check there is no gap between each blade shaft shoulder and cor-responding pillow block.Torque pillow block bolts 15 according to the following tables, complying with bolt orientation and tightening order as show...

Page 10 - Note

10 Installation Fan Diameter inches Bolt 15 Bolt Torque N·m ft·lb 84" to 96" M18 282.5 208 108" to 120" M20 400.3 294 132" to 144" M24 679.8 500 The screw class information is shown in the fan documenta-tion part list. Stainless steel bolts 15 with the A4-80 stamping: Fan Dia...

Page 11 - Operation

11 Operation Prior to Start-Up 1––Make sure all the pillow blocks are fixed to the hub boss—if any movement of the blocks is detected, do not operate the fan and check the torque of bolts 15 . 2––Rotate fan to check tip clearance is in accordance with the speci-fied value (tip clearance ratio x/D, w...

Page 12 - ––Repeat the check of screws; Figure 5

12 Operation 3––After the rotor has been running for one hour, check the torque of the hub screws 15 . 4––Repeat the check of screws 15 after 24 hours from start-up. Figure 5

Page 13 - Maintenance; Maintenance and Operation

13 Maintenance Maintenance and Operation 1––Inspect the overall fan condition periodically.Inspection intervals depend on fan operating conditions and may vary from a minimum of 2 weeks to a maximum of 6 months.The following components should be specifically inspected when inspecting the overall fan...

Page 14 - Possible Causes of Vibration; - The product of fan RPM and the number of blades

14 Maintenance Possible Causes of Vibration The actual causes of vibration may change considerably. Some of the most common are as follows.1–– Unbalance of one or more blades: the vibration caused by blade imbalance occurs on the tip path plane with a frequency equal to the fan RPM and at an amplitu...

Page 16 - Parts List

16 Parts List Item Figure 6 Description Standard Material Standard Protection 1 Blade FRP –– 2 Coupling Flange Steel Epoxy Paint 3 Hub Disk Steel Epoxy Paint 4 Lower Pillow Block Aluminum –– 5 Upper Pillow Block Aluminum –– 6 Pillow Block Plate Steel Epoxy Paint 7 Pins Steel Zinc Plated 8 Coupling F...

Page 18 - Troubleshooting

18 Troubleshooting Trouble Cause Remedy Low air flow Low power absorption System congestion. Clean the entire system. Obstacles to the air flow. Check the real obstacles area and the inlet shape towards the original design. In dry-coolers the minimum free height of the inlet area has to be 1 time th...