avdel Genesis G2 Manual De Instrucciones página 19

S e r v i c i n g t h e To o l
A n n u a l l y
(or every 1 million cycles whichever is the soonest)
Annually or every 1 million cycles the tool should be completely dismantled and new components should be used where worn, damaged or
recommended. All 'O' rings and seals should be renewed and lubricated with Molykote 55m grease for pneumatic sealing or Molykote 111
for hydraulic sealing.
The plastic body and base cover must be changed after approximately 1 million cycles, or whenever there is evidence of impact damage,
chipping or cracks.
The employer is responsible for ensuring that tool maintenance instructions are given to the appropriate personnel.
The operator should not be involved in maintenance or repair of the tool unless properly trained.
The airline must be disconnected before any servicing or dismantling is attempted unless specifically instructed otherwise.
It is recommended that any dismantling operation be carried out in clean conditions.
Before proceeding with dismantling, empty the oil from the tool following the first three steps of the 'Priming Procedure' on page 25.
Prior to dismantling the tool it is necessary to remove the nose equipment. For instructions see the nose assemblies section, pages 8-10 or if
a swivel head was fitted pages 12-15.
For a complete service of the tool, we advise that you proceed with dismantling of sub-assemblies in the order shown.
After any dismantling REMEMBER to prime the tool and to fit an appropriate nose assembly or swivel head.
H e a d A s s e m b l y
•
Unscrew retaining nut 22 and pull off stem collector assembly, items 18, 19, 20, 21, 45, 63, 64 and 'O' ring 17.
•
Pull off stem collector adaptor 13.
•
Using the 'T' spanner* remove end cap 23 together with seal 15 'O' ring 14 and lip seal 24.
•
Remove buffer 25.
•
Loosen locknut 3 with a spanner* then unscrew jaw spreader housing 1 and 'O' ring 2.
•
Remove locknut 3 together with 'O' rings 66 and 67.
•
Push head piston 7 to the rear and out of head assembly 4 taking care not to damage the cylinder bore.
•
Using circlip pliers* remove seal retainer 26. Push lip seal 8 to the rear and out of head assembly 4 taking care again not to damage the
cylinder bore.
•
Remove seal housing 5 and lip seal 6.
Assemble in reverse order to dismantling noting the following points:
•
Place lip seal 8 onto the insertion rod* ensuring correct orientation. Push the guide tube* into the head of the tool and push the insertion
rod* with the seal into place through the guide tube*. Pull the insertion rod* out then the guide tube.
•
The chamfered edge of retainer 26 must face forward with the gap at the bottom.
•
After fitting seals 65, 11 and 12 onto the piston ensuring correct orientation, lubricate the cylinder bore and place the piston sleeve* into
the back of head assembly 4. Slide the bullet* onto the threaded part of piston 7 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 the piston sleeve.
•
Jaw spreader housing 1 must be fully tightened onto head piston 7 before tightening locknut 3 against it.
•
Use Loctite 932 when reassembling Retaining Nut 22.
* Item included in the G2 service kit. For complete list see page 18.
Item numbers in bold refer to the general assembly drawing and parts list on pages 22-23.
I M P O R T A N T
Read Safety Instructions on page 4.
The tool shall be examined regularly for damage and malfunction.
E n g l i s h
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