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Skov BF 50 impeller Mounting Guide

  • Hello! I've reviewed the SKOV BF 50 Impeller mounting guide document. It details the steps for assembling and attaching the impeller to a motor axle. The guide includes information on different blade pitch adapters and torque requirements and describes the tools needed. I'm ready to answer your questions about it.
  • What tools are recommended for mounting the impeller?
    How should the blades be mounted in the rear hub?
    What is the torque for fastening the screws on the front hub?
    What is the torque when mounting the impeller on the motor axle?
BF 50 Impeller
Mounting Guide
604426 • 2021-08-30
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http://docs.skov.com/1241
BF 50 Impeller
2 Mounting Guide
1 Mounting guide
Impeller for mounting on motor axle for wall fan.
BF 50 LPC impeller.
Blades with green pitch adapter 40°.
BF 50 ON/OFF EL/AIR 230V1 50 Hz impeller.
Blades with red pitch adapter 37°.
BF 50 ON/OFF EL/AIR 230V1 60 Hz impeller.
Blades with yellow pitch adapter 31°.
BF 50 ON/OFF EL/AIR 400V3 50 Hz impeller.
Blades with white pitch adapter 39°.
BF 50 ON/OFF EL/AIR 400V3/230V3 60 Hz impeller.
Blades with blue pitch adapter 33°.
BF 50 Impeller
Mounting Guide 3
1.1 Product survey
525053 BF 50 impeller 40 (Green) LPC/400V 50Hz AC
Impeller with three blades for mounting on LPC-controlled wall fan.
Blade pitch is 40° (green adapter).
525055 BF 50 impeller 37 (Red) 1x230V 50Hz AC
Impeller with three blades for mounting on BF 50 ON/OFF EL/AIR 230V1
50 Hz wall fan.
Blade pitch is 37° (red adapter).
525056 BF 50 impeller 31 (Yellow) 1x230V 60Hz AC
Impeller with three blades for mounting on BF 50 ON/OFF EL/AIR 230V1
60 Hz wall fan.
Blade pitch is 31° (yellow adapter).
525057 BF 50 impeller 39 (White) 3x400V 50Hz AC
Impeller with three blades for mounting on BF 50 ON/OFF EL/AIR 400V3
50 Hz wall fan.
Blade pitch is 39° (white adapter).
525054 BF 50 impeller 33 (Blue) 3x230/400 V 60Hz AC
Impeller with three blades for mounting on BF 50 ON/OFF EL/AIR
400V3/230V3 60 Hz wall fan.
Blade pitch is 33° (blue adapter).
BF 50 Impeller
4 Mounting Guide
1.2 Recommended tools
Item Description
Ring spanner 10 mm
Socket wrench set
1.3 Mounting of blades in rear hub
(A)
(B)
(A)
(A)
(B)
(B)
Printed on the rear hub is 1, 2 and 3 (A) and I, II
and III (B) are shown.
(A)
(B) (B)
(A)
(B)
(A)
Printed on the blade pitch is 1, 2 and 3 (A) and
ribs I, II and III (B) are shown.
BF 50 Impeller
Mounting Guide 5
Mount blade number 1 (I) in the hole marked 1 (I).
Mount blade number 2 (II) in the hole marked 2
(II).
Mount blade number 3 (III) in the hole marked 3
(III).
BF 50 Impeller
6 Mounting Guide
1.4 Mounting the front hub
Press the front hub onto blades and rear hub.
Mount the front hub on the back hub with screws,
washers and lock nuts.
Fasten the screws with 10 Nm.
BF 50 Impeller
Mounting Guide 7
1.5 Mounting the impeller on the motor axle
Mount the impeller on the motor axle with M10
screw and washer.
Fasten the screw with 55 Nm.
Press the center cover onto the front hub.
604426 • 2021-08-30 • en-US • Made in Denmark
SKOV A/S • Hedelund 4 • Glyngøre • DK-7870 Roslev
Tel. +45 72 17 55 55 • www.skov.com • E-mail: [email protected]
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