10hp Direct Drive © O.A.S. 2010
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VII. Fan / Blower Maintenance
A high pressure blower requires a certain amount of resistance which will prevent motor over amperage.
Make sure power source matches wire voltage configurations.
Check set screw and key in fan wheel, make sure fan wheel is secure. Fan blower should not vibrate.
1. Electical -
Failure to follow instructions and safe electrical procedures could result in serious injury or death. Discon-
nect all power and discharge all capacitors before servicing. Install and ground per local and national codes. Consult a
licensed electrician with questions or if repairs are required.
Electrical Connections_
A.) All wiring, fusing, and grounding must comply with National Electrical Codes and local codes.
B.) To determine proper rotation and voltage connections, refer to the wire diagram of this manual.
C.) Use the proper size of line current protection and motor controls as required by the National Electrical Code and local
codes. Recommended use is 125% of full load amps as shown on the nameplate for motors with 40 degrees celsius
ambient and a service factor over 1.0. Recommended use is 115% of full load amps as shown on nameplate for all other
motors. Do not use protection with larger capacities than recommended. Three phase motors must have all three phases
protected.
2. Cleanliness -
Keep both the interior and exterior of the motor free from dirt, water, oil, and grease.
4. Service - Notice -
If lubrication instructions are shown on the motor nameplate, they will supercede this general
instruction.
3. Safety-
Motors should be installed, protected and fused in accordance with the latest issue of National Electrical
Code, NEMA Standard Publication No. 2 MG 2 and local codes. Rotating parts such as pulleys, coupling, external fans,
and unusual shaft extentions should be permanently guarded. Keep hands and clothing away from moving parts. Elec-
trical repairs should be made by trained, qualified personnel only.
Warning! Rotating Fan Blades. Keep Objects Clear of Inlet and Outlet!
VIII. Fan / Blower Maintenance
