Adjusting Table Slack And Compensate For Wear - Acra 46SF Instruction Manual

(4) Preparing for Drilling (see fig. 2)(Except addition power feed system).
Turn of the knob make loose the taper body of worm gear and spring base. Then we decide spindle
stroke setting the positive depth stop gauge for drilling blind hole or free state for pass hole.
(5) Preparing for Milling (see fig. 2)(Except addition power feed system).
(a) Adjust the positive depth stop gauge to highest point position.
(b) Turn tight of the knob be use to taper friction force coupling the worm gear and spring base.
Then turning the handle wheel by micro set the spindle of work piece machining height.
(c) Lock the rack sleeve at the desired height with fixed bolt.
QUILL RETURN SPRING ADJUSTMENT:
Spring tension for return of spindle, after hole drilling, has been pre-set at the factory. No further
adjustment should be attempted unless absolutely necessary. Adjustment will probably be required
if a multiple drilling or tapping head is used. If adjustment is necessary, loosen lock screw while
holding. Do not allow the housing to turn in your hand, or spring will unwind. Turn entire housing
assembly clockwise the number of turns necessary to cause the quill to return to its up position. (NOTE.
The flat of the spring housing pilot is lined up with the spring loading hole on the body of the spring
housing.) Reset lockscrew make sure point of screw mates to flat on the housing journal.
7. ADJUSTING TABLE SLACK AND COMPENSATE FOR WEAR (see Fig. 3)
(1) Your machine is equipped with Jib strip adjustment to compensate for wear and excess slack on
cross and longitudinal travel.
(2) Clockwise rotation the job strip bolt with a big screw for excess slack otherwise a little counter
clockwise if too tight.
(3) Adjust the jib strip bolt until feel a slight drag when shifting the table.
11