Avdel 71204 Originalbetriebsanleitung Seite 53

S e r v i c i n g t h e To o l
D i s m a n t l i n g t h e To o l
Before dismantling the tool the oil must be emptied from it.
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With the air supply switched OFF at ON/OFF Valve Assembly 53 remove Bleed Screw 1 and Bonded Seal 5.
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Insert tool over a suitable container, switch air supply ON and actuate tool.
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Oil will expel from bleed screw orifice into container.
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Switch air supply OFF after all oil is expelled.
Ensure the bleed screw orifice is facing away from the person performing this operation.
H e a d A s s e m b l y
71203 Tool with Removable Stem Collector Bottle
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Quarter turn and pull off Stem Collector Bottle Assembly 9. See illustration on page 8.
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Unscrew Retaining Nut 8 together with Deflector 7.
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Pull off Bottle Adaptor Assembly 6.
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Unscrew and remove End Cap Assembly 4 together with 'O' Rings 2, 3 and Lip Seal 1.
or
71204 Tool with Fixed Stem Collector Bottle
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Rotate the Stem Collector Outer 9 so that the aperture in the stem Collector Body 8 is fully exposed.
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Unscrew the Retaining Nut 3.
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Remove the Bottle Assembly 1.
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Remove the Bottle Adaptor Assembly 14.
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Unscrew and remove the End Cap Assembly 2 together with Lip Seal 1, 'O' Ring 13 and Seal 12.
Item numbers in bold above refer to the Stem Collector Bottles Removeable and Fixed on page 26.
then
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Remove Spring 64.
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Loosen Locknut 39 with a spanner* and unscrew Male 'T' Adaptor 40 together with 'O' Ring 11.
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Withdraw Vacuum Sleeve 41.
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Remove Locknut 39 together with 'O' Rings 18 and 14.
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Push Head Piston 35 to the rear and out of Head Assembly 50 taking care not to damage the cylinder bore.
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Using circlip pliers* remove Seal Retainer 42. Push Lip Seal 7 and Bearing Tape 25 to the rear and out of Head Assembly 50 taking
care not to damage the cylinder bore.
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Remove Seal Housing 48 and Lip Seal 2.
Assemble in reverse order noting the following points:
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Place Lip Seal 7 onto the insertion rod* ensuring correct orientation. Locate the guide tube* into the head of the tool and push the
insertion rod* with the seal in place through the guide tube*. Pull the insertion rod* out and then the guide tube*.
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The chamfered edge of Seal Retainer 42 must face forward with the gap at the bottom.
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After fitting Lip Seals 10, 9, 'O' Ring 17 and Bearing Tape 26 onto the Head Piston 35 ensuring correct orientation, lubricate the
cylinder bore and place the piston sleeve* into the back of Head Assembly 50. Slide the bullet* onto the threaded part of Head Piston
35 and push the piston with the seals through the piston sleeve* as far as it will go. Slide the bullet* off the piston and remove piston
sleeve*.
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Male 'T' Adaptor 40 must be fully tightened onto Head Piston 35 before tightening Locknut 39 against it.
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Reprime in accordance with the instructions on page 28.
* Item included in the Service Kit. For complete list see page 20.
Item numbers in bold refer to the General Assembly and Parts List of Common Parts on pages 24 and 25.
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