ITW LOVESHAW LITTLE DAVID LD7D/M, Owner'S Manual

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LOVESHAW an ITW Company
HEAD
THE HEAD RIDES ALONG THE MAST ON BEARINGS AND HIGH DENSITY POLYETHYLENE PADS. THE HEAD
HEIGHT IS ADJUSTED BY TURNING THE HEAD LOCK HAND WHEEL COUNTERCLOCKWISE TO RELEASE THE
HEAD. TURNING THE HAND WHEEL CLOCKWISE WILL LOCK THE HEAD IN THE DESIRED POSITION.
BEARINGS:
IF ANY OF THE BEARINGS WHICH RUN AGAINST THE MAST NEED TO BE REPLACED, PROCEED AS FOLLOWS:
-
DISCONNECT ELECTRICAL SUPPLY. PLACE A STURDY BOX/BLOCK ON BED OF MACHINE AND LOWER
HEAD ONTO IT.
-
REMOVE COVER FROM BACK OF HEAD TO EXPOSE BEARINGS. LOOSEN OUTSIDE NUTS ON
THREADED SHAFT.
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BACK OFF NUTS BETWEEN BEARINGS WHILE TURNING THREADED SHAFT WITH A SCREW DRIVER UNTIL
DEFECTIVE BEARING CAN BE REMOVED.
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REVERSE ABOVE PROCEDURE TO REPLACE BEARING.
-
THE FRONT BEARINGS ARE ACCESSIBLE THROUGH THE BOTTOM OF THE HEAD.
WHENEVER THE BEARINGS HAVE BEEN CHANGED, THE CLEARANCE BETWEEN THE HEAD AND THE MAST MUST
BE RE-ALIGNED. THE CLEARANCE BETWEEN THE TEFLON SLIDES AND THE SIDES OF THE MAST SHOULD BE
ADJUSTED TO APPROXIMATELY .020” (.5 mm). THIS SHOULD BE CHECKED THROUGH THE HEADS RANGE OF
TRAVEL TO INSURE THAT THIS CLEARANCE EXISTS AT THE HIGH POINTS OF THE MAST.
THE CLEARANCE BETWEEN THE BEARINGS AND THE FRONT AND REAR SURFACES OF THE MAST SHOULD BE
SUCH THAT THE HEAD MOVES FREELY AND DOES NOT COCK OR SAG. TO ADJUST THE CLEARANCE, PROCEED
AS FOLLOWS:
-
REMOVE COVER FROM REAR OF HEAD.
-
ADJUST CLEARANCE OF TEFLON SLIDES OF MAST BY LOOSENING LEFT NUT ON THREADED SHAFT
LOCATED ON THE OUTSIDE OF THE HEAD, AND TIGHTEN NUT LOCATED AGAINST INSIDE OR ROLLER
A CORRESPONDING AMOUNT. THIS IS THE EFFECT OF SPREADING OPEN THE SIDES OF THE HEAD.
ADJUST THE FRONT AND REAR THREADED SHAFTS TOGETHER TO KEEP THE TEFLON SLIDES PARALLEL
TO THE MAST. FIRST ADJUST THE UPPER PAIR OF SHAFTS THEN ADJUST THE LOWER PAIR OF SHAFTS.
-
MOVE HEAD THROUGH ITS FULL TRAVEL AND CHECK THAT TEFLON SLIDES HAVE PROPER
CLEARANCE AT THE HIGH POINTS.
-
NEXT ADJUST THE FORE AND AFT ADJUSTMENT SCREWS. THESE ARE SET SCREWS THAT ARE
LOCATED IN THE FOUR BLOCKS TO WHICH THE HEAD COVER IS MOUNTED. TURNING THEM CLOCKWISE
WILL MOVE THE ADJACENT REAR BEARINGS IN TOWARD THE MAST. THEY SHOULD BE ADJUSTED SO
THAT THE BEARING JUST CLEARS THE MAST. LOOSEN THE FOUR OUTSIDE NUTS OF THE TWO REAR
THREADED SHAFTS BEFORE MAKING THIS ADJUSTMENT SO THAT THE SHAFTS CAN MOVE IN THEIR
OVER-SIZED HOLES. BE SURE TO TIGHTEN THE OUTSIDE NUTS AFTER ADJUSTING. WHEN PROPERLY
ADJUSTED, THE HEAD WILL BE PARALLEL TO THE BED OF THE MACHINE AND WILL NOT COCK ON THE
MAST AND THE BEARINGS SHOULD RUN FREELY.
-
MOVE THE HEAD THROUGH ITS FULL TRAVEL AND CHECK THAT THERE IS PROPER CLEARANCE AT
THE HIGH POINTS.
-
REPLACE HEAD COVER.