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5.3 SCHEDULED MAINTENANCE
A program of scheduled maintenance should be set up and documented according to your application
and the frequency you use this machine. The following is a list of important items that should be
included in a scheduled maintenance program:
EVERY 500 HOURS OR SIX MONTHS:
A. Check the tolerance between the punch ram and the punch ram bushing.
To check the tolerances, remove the punch ram and the bushing from the machine. For parts
identification, SEE FIGURE 7 ON THE FOLLOWING PAGE.
1. To remove the punch ram and bushing, first remove the die holder (A). The stripper (B), the
punch ram shroud (C) and the punch pin cover (D).
2. Cycle the machine until the lower punch pin (E) aligns with the access hole in the rear frame.
Turn the power off.
3. Block up the punch ram (F).
4. Remove the two mounting bolts and washers (G) from the stroke control mounting plate. Be
careful with the wires.
5. Remove the two snap ring retainers (H) from the lower punch pin. Remove the four mounting
bolts (I) and the grease zerk (J) from the punch ram bushing. The meter boss (K) can be left on
the lower punch pin. Push the pin out through the access hole in the rear frame.
6. Remove the punch ram and the bushing. Care should be taken when removing these parts;
THEYARE HEAVY.
7. Clean all grease and dirt off both parts and check the clearance between the outside diameter of
the punch ram and the inside diameter of the punch ram bushing. If the clearance between the
two parts is five thousandths (.005) or more, replace both parts. Reassemble parts in reverse
order.
B. Check the condition of the cutting blades on the bar shear, angle shear and any other component
tool.
C. Check the condition of the bushing in the upper arm and shear arm. This can be done by visually
watching the arms for vertical movement while the machine is in operation.
If vertical movement is noted, block or support the arms with a lifting device and remove the pin
and check the clearance. If the clearance between the pin and the bushing exceeds twelve (.012)
thousandths (.3mm), replace the bushing. Since the 6509-24M can be used for a wide variety of
applications with many optional tools, these may not be all of the items that you need to include in
a scheduled maintenance program. If you have questions about other applications, contact your l
ocal dealer or the factory.
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