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8. Install the bolt tightener bracket on the bottom side
of the blower housing with the M6 x 16 mm screw,
serrated washer and nut.
9. Install the housing clamp with the M6 x 16 mm
screw, serrated washer and nut. Start at the fixed
end on the top side of the fan housing, and care-
fully wrap the clamp around the seam to seal the
housings together.
10. Insert the M8 x 70 mm tightener bolts with 1 wash-
er, thru the tightener bracket and the end of the
housing clamp. Install a second washer and secure
with nut.
11. Slowly draw the clamp around the housing with the
tightener bolt. Note: Lightly tap the clamp with a
rubber mallet along the edge of the seam to firmly
seal the housings together and secure the bolt and
nut.
12. If the fan inlet will be exposed during operation in-
stall the finger guard grill with the OK160 bolt clamp
provided. Note: If optional stand is used – attach
stand to blower then install finger guard grill to the
stand with OK 160 clamp provided.
Electrical installation:
All local factory inspectorate regulations must be com-
plied with.
Check that the electric power supply meets the motor
requirements.
The motor must be protected from overloading by a
protective motor switch.
Make sure the connecting rail of the motors terminal
box is correctly fitted to the current mains voltage.
Rotation direction of the blower rotor should be coun-
ter-clockwise viewed from the inlet side, see the arrow
on the blower housing. Failure to do this will drastically
reduce capacity.
Service and maintenance:
All service, maintenance and repairs should be per-
formed by qualified or trained personnel.
The motor must not be covered up and should be kept
free from dirt which may reduce the cooling of the mo-
tor.
Make sure that there is always an unobstructed flow
of cooling air to the blower motor. If necessary, clean
the grid in the rear of the motor, and keep the blowers
air intake free of leaves ect. that could obstruct the air
passage.
The motor bearings are lubricated at the factory and
require no additional lubrication.
8
Once a year, the following maintenance should be
performed:
•
Visual inspection of all pipe connections and cov-
ers, to ensure attachment and tightness
•
Visual inspection of electrical connections.
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