1. Clean all parts carefully.
2. Measure the tool diameters (X and Y) from the areas marked on the illustration.
Replace tool if necessary. See “Changing the tool” on page 55.
3. Measure the tool retaining pin diameter (Z). Replace tool if necessary. See
“Changing the tool” on page 55.
4. Check tool seal. Replace if necessary.
5. Clean the tool and retaining pin and lubricate them with grease.
6. Install tool and align the groove of the tool with the pin bores.
7. Install tool retaining pin.
8. Install rubber ring.
9. Install plug.
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