Spindle Rpm; Gibs - Grizzly G4000 Instruction Manual

S S E E C C T T I I O O N N 6 6 : : A A D D J J U U S S T T M M E E N N T T S S
S S p p i i n n d d l l e e R R P P M M
S S p p i i n n d d l l e e R R . . P P . . M M . . - - Spindle RPM's are controlled
through a series of pulleys. To adjust the speed
on the Model G4000, shut the machine off and
unplug it, open the side-cover on the headstock.
F F i i g g u u r r e e 2 2 3 3 . . Release pressure with the belt ten-
sion lever and attach the drive belt to the pulley
combination desired. There is a belt position dia-
gram and a RPM chart on p p a a g g e e 2 2 8 8 a a n n d d 2 2 9 9 . .
F F i i g g u u r r e e 2 2 3 3 . . Pulley and gear box.
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G G i i b b s s
There are two main gib adjustments for the Model
G4000. They are: the cross-slide gib and the
compound slide gib.
C C r r o o s s s s - - s s l l i i d d e e G G i i b b - - The gib on the cross slide is
adjusted by the setscrews at the side of the cross
slide. To adjust, loosen the check nuts holding
the setscrews in place, tighten the setscrews until
excess movement is eliminated and tighten the
check nuts. F F i i g g u u r r e e 2 2 4 4 . .
N N O O T T I I C C E E
When adjusting gibs, keep in mind that the
goal of gib adjustment is to remove unneces-
sary sloppiness from the slide's movement
without causing them to bind. Overtightening
may cause premature wear.
F F i i g g u u r r e e 2 2 4 4 . . Cross slide gib adjustment.
G4000 9'' x 19'' Lathe