Challenge CHAMPION 305 TC, Инструкция и каталог запасных частей

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13.0 Repair and Replacement
52
Figure 46
6. Remove the clevis pin out of the knife bar and clevis by first removing the front E-style
retaining ring on the pin (Figure 46). The pin has a 1/4-20 tapped hole in it to aid removal of
the pin out of the knife bar and clevis. It may also be helpful to use the pry board to block up
the knife bar, releasing pressure from the pin to make it easier to remove.
7. Now, remove the pin keeper on the lower pin (Figure 46, previous page). Then carefully tap
the pin out of the cylinder.
8. Remove the old cylinder. With the shaft of the old cylinder bottomed out, note the dimension
between the top of the cylinder body and the bottom of the cylinder clevis. Also note the
approximate position of the proximity switch actuator. Transfer the proximity switch bracket,
proximity switch actuator, clevis, clevis jam nut, and hydraulic sequence valve assembly onto
the new cylinder and insert it into position on the cutter.
9. Reinstall the lower pin and pin keeper.
10. Install the clevis pin to connect the cylinder to the knife bar and replace the retaining rings.
11. The cylinder shaft can be threaded into the clevis to adjust the position of the knife bar.
When properly adjusted, the distance from the top of the knife bar recess to the table with the
knife in the down position should measure 4-1/8” (103mm), (Figure 47).
Clevis
Jam Nut
E-Ring
(Both Ends)
Clevis Pin with
1/4-20 Threaded Hole
Pin Keeper
Knife Cylinder
Hose
Connections
Proximity Switch
Actuator
Sequence
Valve
Assembly
Proximity Switch
Bracket
Lower Pin