1.) ARE THE UPPER AND LOWER FLANGE PUNCHES MOUNTED TO A SINGLE CASTING, OR DO THEY EACH HAVE A SEPARATE CASTING WHICH ARE MOUNTED TO A WELDED PLATE FRAME?
EXAMPLE OF UPPER AND LOWER PUNCHES WITH SEPARATE CASTINGS
EXAMPLE OF UPPER AND LOWER PUNCHES MOUNTED TO A SINGLE CASTING
2.) DO THE FLANGE PROBE RODS THAT CONTACT THE WEB ADJUST BY THE RODS SCREWING IN-OUT ON THREADS OR BY SLIDING UP-DOWN IN BUSHINGS IN THE PUNCH FRAMES? ALL RETROFIT MACHINES ARE CONVERTED TO SLIDE ADJUSTING PROBE RODS.
SCREW ADJUSTING PROBE RODS BUILT INTO FRAME
SLIDE ADJUSTING PROBE RODS BUILT INTO PUNCH FRAME
3.) IF THE FLANGE PROBE RODS SCREW UP/DOWN, ARE THE THREADS IN THE FRAME ACTUALLY PART OF THE FRAME, OR ARE THEY PART OF A SEPARATE BUSHING MOUNTED IN A ROUND HOLE IN THE FRAME? (SEE PICTURES IN #2)
4.) IF THE FLANGE PROBE RODS SLIDE UP/DOWN, ARE THE LOWER BUSHINGS MOUNTED DIRECTLY IN HOLES MACHINED INTO THE PUNCH FRAME CASTING; OR ARE THEY MOUNTED IN SMALL BLOCKS WHICH ARE BOLTED TO THE PUNCH FRAME? (SEE PICTURES IN #2)
5.) WHAT IS THE HORIZONTAL CENTER TO CENTER DISTANCE BETWEEN THE TWO PROBE RODS ON THE FRAME?
6.) IS THE UP/DOWN MOVEMENT CONTROLLED BY TWO SOLENOID VALVES MOUNTED TO A BLOCK OR ONLY ONE VALVE?
7.) IF THERE ARE TWO VALVES FOR THE UP/DOWN MOVEMENT OF EACH FLANGE UNIT, GET NAME PLATE DATA OF EACH AND PHOTOGRAPH?
8.) CONDITION OF UP-DOWN GUIDE SLIDES:
ARE THE SLIDES RUSTED?
ARE THE SLIDES BENT?
ARE PLASTIC WEAR STRIPS ON MOVING FRAME WORN OR MISSING?
LIST ANY OTHER OBSERVATION THAT MAY BE HELPFUL.
9.) ARE THERE ANY LEAKS IN THE PUNCH CYLINDERS OR UP-DOWN CYLINDERS? IF SO, THE ITEM(S) WILL NEED TO BE REPLACED.