During removal and after the piston shaft is removed; DO NOT hold the round portion of the shaft with any
holding device that will damage the surface. To avoid hydraulic oil leak do not allow nicks or scratches to the
surface.
6. Using a socket on the hex of the piston head unscrew and remove the piston head from the shaft with the Piston O-ring.
7. Pull the Piston shaft out of the Housing.
8. Replacing Sliders position the Slider Pin over a clearance opening in a soft block and use a small drift to tap the Pin out of the
Sliders and shaft.
9. If the Rod Seal needs replacement, use a hooked tool to pull it out of the Housing.
3.1.5 Step for Disassembly of the Ratchet Link
1. Keep the Ratchet Link flat on a workbench with the Left Side Plate downward and using an Allen Key, unscrew and remove the
two Lower Spacer Screws.
2. Using an Allen key, unscrew and remove the two Upper Spacer Screws.
3. By using roll pin punch tap the Spacer Roll Pin out of the Right Side Plate For Series PXD-16, PXD-32.
4. Applying thumb pressure to the edge of the Ratchet, carefully lift the Side Plate off the Assembly.
5. Hold the Ratchet and Drive Plate and, while maintaining their relationship, lift them both off the Left Side Plate.
6. Push the Ratchet out of the Drive Plate and Remove the Drive Segment and the Segment Spring from the Drive Plate Recess.
7. By using roll pin punch replace the Drive Pin or Drive Pin Spring; use a roll pin punch to push the Drive Pin Spring Roll Pin out of the
Drive Plate. Once the Pin Spring is removed, the Drive Pin will drop down to the large opening at the bottom of the slot for easy removal.
8. Lift the Lower Spacer off the Lower Spacer Pins. If the Pins must be replaced, use a Allen key to remove the two Lower Spacer
Screws from the Right Side Plate. Pull the Pins out of the holes on the inner face of the Right Side Plate.
9. For Series PXD-2, PXD-4, and PXD-8, unscrews the two Spacer Screws and remove the Upper Spacer from the Right Side Plate. For
Series PXD-16 and PXD-32 uses a roll pin punch to remove the Spacer Roll Pin from the Right Side Plate. Unscrew the two Spacer
Screws and remove the Middle Spacer and Upper Spacer from the Right Side Plate.
10. Replace the Side Plate Sleeves by pressing the Sleeves out toward the inner face of the Side Plate.
3.2 ASSEMBLY OF WRENCH:
3.2.1 General Instructions
1. Take precautionary measure while handling surfaces that will contain hydraulic oil under pressure.
2. Hold a wrench in a leather–covered or copper–covered vise jaws to protect the surface of the part and help prevent distortion.
This is particularly for the threaded part and housings.
3. Apply 'O'–ring lubricant to all 'O'–rings before final assembly.
3.2.2 Step for Assembly of the Ratchet Link
1. Insert the Side Plate Sleeves by pressing, new sleeves shoulder end trailing into the Right and Left Side Plates from the inner face
of the side Plates. Assure that the Sleeves are square with the side plate faces and the shoulder of the Sleeves enters the
recesses in the Side Plates and are pressed flush with the faces.
2. For Series PXD-2, PXD-4, and PXD-8 position the Upper Spacer against the inside faces of the Right Side Plate by applying a non
permanent thread-locking compound to the threads of the two Upper Spacer Screws and tighten the Spacer with the Screws
through the Side Plate.
18
PXD Series Operation Manual
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