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Harig AUTOMATIC PLC - Oil Dripping Issues; Uneven Downfeed Response

Harig AUTOMATIC PLC
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19
n table
nd saddle are being put back into place.
The entire underside of the table, saddle and the ways in the base and saddle should be carefully
cleaned before reassembling the machine to be sure that grit cannot fall into the way whe
a
5. OIL DRIPPING
A. Machine not level.
leveled can cause oil dripping from the underside of the table
ays. Re-check leveling, and follow installation instructions if machine is not level.
g the two
rews and sliding the guard up so that the screw heads will pass through the keyhole slot in the
wn completely and then reopening 1/2 turn. If dripping
The machine being improperly
w
B. Restricting valve open too wide.
Check restricting valve setting. Remove dust guard (Part No. 16816608) by loosenin
sc
guard. Reset the valve by closing it do
from the ways continues, close the valve back to the point where it is opened approximately 1/8
of a turn.
6. UNEVEN DOWNFEEDING RESPONSE
A. Wheel too loose.
eel insufficiently tight, the wheel may have
ifted slightly when the motor was restarted, cutting an additional amount because of being off
ding wheel.
top of the column shortly after spindle motor is turned on. If
il does not appear, make sure that oil cup on the back of the machine base is nearly filled. Add
No. 16211245). If oil is at the proper level, see that the pump is
tained by an extremely close fit on the
olumn ways. Since there is only a few tenths clearance between the spindle housing and
plate could cause spindle housing to
rd or
note
screw and sliding it off the end of the spindle. Loosen the five
/16” set screws holding the spindle cartridge in the housing approximately 1/8”. The spindle
dirt
If grinder has been stopped and restarted with the wh
sh
center. Retighten grin
B. No oil on column ways.
Check oil level in sight glass at the
o
oil if necessary (Harig® Part
running and that filter screen is clean. (See LUBRICATION under MAINTENANCE.) Check
that oil lines are intact and on their proper fittings.
C. Spindle housing assembly sticking in column ways.
The exceptional rigidity of the Harig® Grinder is ob
c
column, any dirt, grit, or a very small warping of the back
“hang up” in the ways. Check for this condition by mounting an indicator on the wheel gua
spindle housing to touch a block on the grinder table. Turn the down feed hand wheel and
the response on the indicator. The 100 lb. combined weight of the motor spindle and housing
and guard assembly should keep the lock nut carrying the elevating screw firmly seated in the
ball bearing in the column cap.
To inspect column ways, remove the grinding wheel from the spindle. Then remove the wheel
guard by loosening its clamping
5
cartridge and motor assembly can now be removed from the back of the machine. Take out the
six Phillips head screws that hold the back dust guard retainer in place, and remove the dust
slides and retainer. Crank the saddle away from the column and remove the six Phillips head
screws holding the front dust slides. Now alternately crank the spindle housing to the top and
then to the bottom of the travel, wipe off the ways with a clean cloth and inspect. Clean any
or grit. Check to see if a piece of grit has scored the ways. If so, they should be dressed with a
fine stone to remove any ridges.