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Old 21st October 2019, 18:31   #9
Arctic
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Rover 75 Tourer

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Hi David.
Below is the condition of bones fan once it was taken apart for investigation.

As we know 1.8 fan control lid taken off.
1


Remove the broken cowling for the motor.
2

start of removing the rusty back plate/lid.
3

The back plate lifted
4

Right away you can see burning damage.
5

6

Remove the board holding the brushes, right away you are confronted with the real extent of a stuck motor and the damage caused.
7

8

Here you can see that the low speed brush as been completely burned away, the medium worn down to a 1/4
9

Every brush as hot burning residue marks on them, as well as the wiring wind and commutator.
10

Quite a few of the windings have burnt completely through.
11

The only thing salvageable is the wiring loom & control box, these still need to be checked before they could possibly be used for another project.
12

13

I don't know how this as been missed, you would certainly have known by either smell or noise of it being stuck, lucky escape that no more damage was caused
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Last edited by Arctic; 21st October 2019 at 18:48..
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