Pneumatic Piston Assembly; Valve Spool Assembly; Trigger - avdel Genesis G4 HD Manual De Instrucciones

S e r v i c i n g t h e To o l
H e a d A s s e m b l y
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.
•
Drop seal retainer 30 against lip seal 8 large flange first.
•
Fit seals 11 and 13 onto the piston.
•
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.
•
Fit seal housing 5 and lip seal 67.
•
Tighten jaw spreader housing 1 fully tightened onto head piston 7 BEFORE tightening locknut 3 against it.
•
Use Loctite 932 when reassembling Retaining Nut 26.
P n e u m a t i c P i s t o n A s s e m b l y
•
Remove 'ON/OFF' valve assembly 60.
•
Clamp the body of the inverted tool ACROSS THE AIR INLET BOSSES in a vice fitted with soft jaws.
•
Pull off rubber boot 80.
•
Using the peg spanner* unscrew base cover 40.
•
Unscrew locknuts 76 (2 off) and remove base plate 77.
•
Remove liner 45 together with sealing washers 75 (2 off) and 'O' rings 78 (2 off).
•
Remove pneumatic piston assembly 42 together with 'O' ring 39, lip seal 41 (3 off) and guide ring 35.
Assemble in reverse order.
Va l v e S p o o l A s s e m b l y
•
Remove pneumatic piston assembly 42 and seal assembly 34 as described immediately above.
•
Using the 'T' spanner* and 'T' spanner spigot* undo clamp nut 36 and remove it together with clamp plate 63, transfer tube
assembly 44, 'O' ring 6, valve rod 43 and silencer pads 62.
•
Release the tool from the vice and separate body 38 with 'O' ring 31 from handle assembly 32.
•
Remove 'O' ring 33 from the intensifier tube and pull off head assembly 4 from handle assembly 32.
•
Push out valve seat 64 with both 'O' rings 6.
•
Pull out all the components of valve spool assembly 54.
•
Finally remove 'O' ring 59 out of the handle counterbore.
Assemble in reverse order noting the following points -
•
Ensure that the central port in valve seat 64 faces upwards.
•
Use Loctite 243 when reassembling Clamp Nut 36, torque to 11ft lb (14.91 Nm).
Tr i g g e r
•
Using the 2 millimetre diameter pin punch*, drive trigger pin 48 out and lift off trigger 47.
•
Unscrew trigger valve 46 using the trigger valve extractor*.
Assemble in reverse order to dismantling.
Priming is ALWAYS necessary after the too has been dismantled and prior to operating.
* Item included in the G4 service kit. For complete list see page 15.
Item numbers in bold refer to the general assembly drawing and parts list on pages 18-19.
16
I M P O R T A N T
Check the tool against daily and weekly servicing