52
96-5047 rev L June 2005
8. ROUTINE MAINTENANCE
The HAAS rotary tables require very little routine servicing. However, it is very important to perform these
services to ensure reliability and long operating life.
8.1 I
NSPECTION
OF
THE
T
ABLE
To ensure that the table will perform accurately, there are a few points of inspection that should be performed
occasionally. There are basically two points of interest when inspecting the table: the platter runout and
backlash.
Platter Runout: To check the platter runout, mount an indicator to the body of the table. Position the indicator
on the platter face. Index the table 360 degrees (360
o
). The runout should be .0005 or less.
Worm Play: Worm play will show up as backlash at the platter. Therefore, worm play must be measured
before meaningful backlash measurements can be made. Remove the air supply to the table. First drain the oil,
then remove the worm housing cover from the side of the table. Mount a tenths indicator to the table body with
the sensing arm on the exposed end of the worm. Use an aluminum bar to rock the platter back and forth.
There should be no detectable reading. Not applicable for the HRT210SHS.
Backlash Between Worm And Gear: After the worm play near the outside edge of the platter is checked,
the backlash can be measured. The air must be disconnected from the table for this. Mount a magnet on the
platter of the table. Use a tenths indicator to measure the backlash. Take your reading off the magnet at a 4"
radius. Use the aluminum bar to rock the platter back and forth. Read the amount of backlash from the indica-
tor; it should be between .0002 and .0006. Not applicable for the HRT210SHS.
Backlash In The System: Connect the air to the table. Index the table in the negative direction 360 degrees
(360
o
). Place the indicator at the edge of the platter. Program a .001 degree (.001
o
) move into the controller.
Cycle the rotary table at this .001 degree (.001
o
) move until you detect movement with the indicator. Read the
amount of backlash in the system from the readout. Not applicable for the HRT210SHS.
8.2 A
DJUSTMENTS
TO
THE
T
ABLE
The platter runout and worm play are set at the factory and should not need to be readjusted. If the platter
runout or worm play are out of adjustment, contact HAAS for information.
Backlash Between Worm And Gear: Contact HAAS Service department for details.
Backlash In The System: The backlash in the system can be compensated for by the use of Parameter 15.
Contact HAAS service department for details.
8.3 U
SE
O
F
O
IL
-
AND
W
ATER
-S
OLUBLE
C
OOLANTS
For the use of oil- and water-soluble coolants the following guidelines should be observed:
•
DO NOT SUBMERGE THE UNIT IN COOLANT. Keep the coolant lines on the work piece spraying
away from the rotary table. Tool spraying and spatter will not be detrimental to the unit.
•
Inspect the cables and gaskets for cuts or swelling. Damage must be repaired immediately.
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