Genesis nG1, Instruction Manual

Page: 21 / 32

21
D i s m a n t l i n g t h e To o l
S e r v i c 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.
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Twist and pull off Stem Collector Bottle Assembly 24 . See illustration on page 7.
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Remove Stop Plate Assembly 69 by unscrewing Screws 63 2 off.
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Unscrew Retaining Nut 47 .
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Pull off Bottle Adaptor Assembly 31 together with ‘O’ Rings 19 and 27 .
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Remove End Cap Assembly 34 together with ‘O’ Rings 65 and Lip Seal 8 .
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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 29.
* Item included in the Service Kit. For complete list see page 20.
Item numbers in
bold refer to the general assembly drawing and parts list on pages 26 and 27.
H e a d A s s e m b l y