409-2426 Datasheet, PDF (15/17 Pages) Tyco Electronics – Pneumatic Tools

Pneumatic Tools 68068 and 68068-1
409-2426
12. Examine the piston “O” ring (Item 27) for wear and damage. If necessary, replace it. Apply a small
amount of “O” ring lubricant to the “O” ring.
13. Align the holes of the rear plug with the holes of the cylinder housing, and insert the rear plug. Install
and tighten the screws (Item 20).
14. Carefully position the handle over the tubes and secure with the screw (Item 16) and washer (Item
8).
15. Re–install the strap (Item 7) using the two screws (Item 9) and washers (Item 8).
8.2. Piston and Piston Rod O" Ring Replacement
1. DISCONNECT the tool from the air supply.
DANGER
To prevent personal injury, ALWAYS DISCONNECT the tool from the air supply when making replacements.
2. Remove the two screws (Item 9), washers (Item 8), and strap (Item 7) from the handle.
3. Remove the screws (Item 20) from the rear of the cylinder housing.
4. Remove the rear plug (Item 25), being careful not to damage the piston “O” ring (Item 27).
5. Remove the screws (Item 20) that mount the front plug (Item 21) to the front of the cylinder.
6. Remove the cam (Item 33), front plug (Item 21), and piston (Item 28) as a unit from the cylinder.
7. Remove the screw (Item 24), and remove the piston from the piston rod (Item 29).
8. Slide the front plug off of the piston rod.
9. Remove the piston rod “O” ring (Item 30) from the front plug insert (Item 31), and inspect the back–up
rings (Item 22) for wear and damage. If necessary, replace the back–up rings.
NOTE
Stagger the slits in the back-up rings before installing the O" ring.
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10. Install the new piston rod “O” ring, and apply “O” ring lubricant.
11. Slide the front plug onto the piston rod.
12. Remove the piston “O” ring (Item 27) from the piston, and inspect the back–up rings (Item 23) for
wear and damage. If necessary, replace the back–up rings.
NOTE
Stagger the slits in the back-up rings before installing the O" ring.
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13. Mount the piston on the piston rod. Apply a heavy–duty anti–seize lubricant to the threads of the
screw (Item 24), and install and tighten the screw to lock the piston onto the piston rod.
14. Inspect the piston “O” ring (Item 27) on the front plug for wear and damage. If necessary, replace
the “O” ring. Apply “O” ring lubricant.
15. Align the screw holes of the front plug with the mounting holes at the rear of the cylinder.
16. Slide the front plug, cam, and piston as a unit into the cylinder until the front plug screw holes are
aligned with the mounting holes at the front of the cylinder.
17. Install and tighten the screws (Item 20) to lock the front plug into position.
18. Examine the piston “O” ring (Item 27) for wear and damage. If necessary, replace the “O” ring, and
apply “O” ring lubricant to the “O” ring.
Rev A
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