Operation Instructions for TCX575 Tire Changer  4. Maintenance, Calibration and Replacement Parts  35 
2.  Using a feeler gauge, check the horizontal gap between the tool head 
and the rim. The distance should be 1/16 inch. 
 
1/16 inch 
GAP 
 
3.  If the gap is not correct, release the head position lock and adjust the 
nuts beneath the horizontal post locking system cover to adjust the gap. 
The cover must be removed. Back off the nuts to increase the gap and 
tighten to reduce the gap. 
 
HORIZONTAL 
POST LOCKING 
SYSTEM COVER 
REMOVED 
DJUSTMENT 
NUTS
 
 CAUTION:  To ensure that the horizontal locking plate functions 
correctly, the two nuts must be adjusted symmetrically. 
4.  Reposition the tool head on the rim and lock it in place with the head 
position lock. Re-check gap. 
5.  When the adjustments are complete, check the gap between the hook of 
the tool head and the outboard safety hump of the rim. The distance 
should be between .08 and .16 inch. If not, repeat the calibration 
process. 
 
.08 - .16 
inch GAP