kobelco sk40sr-3 slewing motor adjustment

[frank_s4]

I have slack (horisontal, left and right) in the swing.
can someone please tell me where to adjust this.
year 2006

 

[uffex]

Good day Frank
I am guessing you are referring to flank play, with the equipment at full reach above the ground you can move the superstructure by pressing against the bucket. some movement is normal and represents the play between the final drive gears, if this is correct there is no adjustment only replace gears if it is excessive.
Kind regards
Uffex

 

[frank_s4]

thank you for your reply

do not now what flank play is. the play is from side to side.

the play is more then it was before. think it is strange there is no adjustmant...

 

[frank_s4]

some think the play maybe in the swing motor itself. not in the slewing ring

 

[LACHAU]

 

[LACHAU]

some think the play maybe in the swing motor itself. not in the slewing ring

You mean when you are swinging and then stopping, the machine is not stopping immediately, it is shaking??
Or when you turn off the engine, you can even push the upper- structure of it to swing a little??

 

[frank_s4]

when engine is off I can push the upper structure side to side. not very much but it was not like this before

 

[frank_s4]

do you have the workshop manual? I only find sk45sr / sk40sr
you seem to have the correct one

 

[uffex]

Good day Frank
I believe we are talking of the same phenomena see the attached illustration.
Kind regards
Uffex

 

[frank_s4]

 

[uffex]

Hi Frank
That is indeed flank play from the publication that does not seem so bad, measuring the play is normally made by masking tape on the ring and dragging a pencil held in a magnetic D.T.I. holder. Is this something you have just spotted my guess is that there is nothing to be alarmed about.
Kind regards
Uffex

 

[frank_s4]

thanks for you reply

yes just spotted
you can feel it when you are using the machine and is not "a good feeling"

I finally found the grease nipple for the ring but as I can understand this ONLY grease the balls? and not the slewing ring itself?

 

[uffex]

I guess you do not have a operators manual?

 

[frank_s4]

no operators manual. why?

 

[uffex]

The operators manual normally explains the lubrication method for the slewing ring

 

[frank_s4]

ok... I can only find 1 grease point and it is for the balls. how is the ring greased on other machines?

 

[uffex]

Good day Frank
Some are sprayed with a thin grease other run in bath of lube I try and find out what is common for small Kobelco machines.
Regards
Uffex

 

[frank_s4]

your help means alot. thank you

kobelco sk40sr3

 

[uffex]

Hi Frank
As best I can establish the slew ring is in a lube bath standard in the industry please see attached.
Kind regards
Uffex

 

[frank_s4]

thank you.
so the grease is filled from the factory and can not be greased later on? am I understanding it correct?