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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
71401 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 End Cap Assembly 4 together with 'O' Rings 2, 3 and Lip Seal 1.
or
71404 Tool with Fixed Stem Collector Bottle
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Rotate the Stem Collector Outer so that the aperture in the stem Collector Body is fully exposed.
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Unscrew the Retaining Nut 3.
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Remove the Bottle Assembly 4.
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Remove the Bottle Adaptor Assembly 8.
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Unscrew and remove the End Cap Assembly 2 together with Lip Seal 1, 'O' Ring 7 and Seal 6.
Item numbers in bold above refer to the Stem Collector Bottles Removeable and Fixed on page 26.
then
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Remove Spring 15.
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Loosen Locknut 3 with a spanner* and unscrew Male 'T' Adaptor 1 together with 'O' Ring 2.
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Withdraw Vacuum Sleeve 43.
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Remove Locknut 3 together with 'O' Rings 42 and 41.
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Push Head Piston 27 to the rear and out of Head Assembly 6 taking care not to damage the cylinder bore.
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Using circlip pliers* remove Seal Retainer 12. Push Lip Seal 9 and Bearing Tape 8 to the rear and out of Head Assembly 6 taking
care not to damage the cylinder bore.
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Remove Seal Housing 5 and Lip Seal 7.
Assemble in reverse order noting the following points:
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Place Lip Seal 9 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 12 must face forward with the gap at the bottom.
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After fitting Lip Seals 13, 14, 'O' Ring 50 and Bearing Tape 51 onto the Head Piston 27 ensuring correct orientation, lubricate the
cylinder bore and place the piston sleeve* into the back of Head Assembly 6. Slide the bullet* onto the threaded part of Head Piston
27 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 1 must be fully tightened onto Head Piston 27 before tightening Locknut 3 against it.
•
Reprime in accordance with the instructions on page 30.
Item numbers in bold refer to the General Assembly drawing and Parts List on pages 24 and 25.
* Item included in the n G2s Service Kit. For complete list see page 20.
21
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