Element Enduro with Holmes Hobbies.

[Speedytriple]

Hi guys 

 

ive recently built the above with a HW BL1080

 

interestingly enough there seems to be so much drag on the motor that I don’t think a drag brake is even necessary. 
 

on a steep decline the truck won’t roll under its own weight. 
 

nothing is binding as truck runs free with no motor in. 
is this normal for these Holmes Hobbies crawlermaster motors?

 

thanks. 

[Shergar]

Not noticeably so? You could try breaking the motor in by running in a glass of water though, it would let you know if the motor was sticking too.
 

Can you try the motor mount mount in a different position?

[Speedytriple]

Thanks fella

 

Do I submerge the entire motor inc brushes in water and run it direct from battery? If so how long do I do it for? Thanks. 

[Stormbringer]

Yes submerge motor inc brushes and run it at lower voltage than you intend to run it at for a couple of hours

it allows the brushes to shape themselves to commutator without burning 

[Speedytriple]

So, took the spur gear off today and spun the motor by hand.  A little resistance but easy to turn.

 

good start

 

turned the wheels with no spur so obvs no motor interference- all drivetrain. Again a little bit of resistance but hardly any. 
 

still good. 
 

pop spur gear back on entire drivetrain feels tight again. 
 

it’s not like something is binding it just feels like there are brakes on a little or like you are acting against motor torque or something. Maybe it’s normal, but it feels like it wouldn’t really slowly descend on say a 30degree slope. 
 

motor is a Holmes Crawlermaster sport 12t if that helps. 
 

incidentally I have noticed the angles of the axles are a bit weird, front tipped down at the front and back ripped down at the rear. Is this normal? I have got the arrows lined up on the hub carriers but it looks a little odd. 
 

cheers guys.