Emco compact 8, Instruction Book / Parts List

Page: 21 / 57

BEARING AND SLIDE ADJUSTMENT
Adjustment of main spindle bearings
The mainspindle bearings are correctly adjusted at the
works. If end play becomes evident after considerable
use, the bearings can be adjusted by slackening the
grub screw (1) in the slotted nut (2) on the back end
of the spindle and tightening the slotted nut with a
"C" spanner until all end play is taken up, but with the
spindle still revolving freely. (Excessive preloading will
damage the bearings). Tighten grub screw.
Adjustment of cross and top slides
Each slide is fitted with a gib strip which can be ad­
'justed with 3 screws (3) fitted with lock nuts. The gib
strip is adjusted with the screws until the slide moves
freely without play, after which the lock nuts are
tightened.
Adjustment of feed screw end float
When one of the two slides develops end float, slacken
the screw ( 1) in the relevant handwheel and adjust the
nut until all play has been taken up.
Re-lock the nu
l
with the screw.
Adjustment of feed screw backlash in nuts
Cross slide spindle
Remove the top slide and adjust screw 1 until the back­
lash between the spindle and nut is eliminated.
20
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