OKUMA Cadet Mate Spindle Cartridge

[QFC]

I have a 1997 OKUMA Cadet Mate 4020 VMC. The spindle cartridge needs replaced.

I have one on order but have not attemted to remove the current one.

Has anyone replaced one of these cartridges and how difficult is it?

[Goldorak]

yes , twice

 

it's not as difficult as it seems, noting fancy , just follow the procedure provide by Okuma

[Brando]

yep ive done it 3x, compared to other belt driven spindles id say this is about easy-medium difficulty

 

the spindle position encoder its very expensive and VERY easy to damage, you will see it around the mid section of the spindle

i usually take it off first and disconnect it and put it somewhere safe

also when you put it back on indicate the ring to check its .001 or less, i forget the air gap spacing ill check my notes tomorrow

 

the set screws that hold the tsc coolant tube to the spindle cartridge are a pain to get out so be careful not to strip the hex, also replace the orings on the nipple that tube slides on or the tsc will leak, and when u put the tube back in try to evenly tighten the screws and indicate the tube to about .002 or less or it may cause vibration in the upper rpm which will also wear out the bearing in the unclamp clyinder

 

make sure u clean the sheaves and the belt of oil or it may slip at low rpm

 

if u need any help with any specifics ill be glad to answer

[QFC]

Thanks guys! I have the hopusing off and the belts loosened. Now time to dive in. I will heed your warnings brandou and look forward to more info.

 

This is the second one for this machine. I had tech service guy from Hartwig take care of it last time.

[Brando]

the spindle encoder air gap should be .006-.008 measured from the high spot on the encoder ring