19
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.
•
With the air supply switched OFF at ON/OFF Valve Assembly
62
remove Bleed Screw
1
and Bonded Seal
6
.
•
Insert tool over a suitable container, switch air supply ON and actuate tool.
•
Oil will expel from bleed screw orifice into container.
•
Switch air supply OFF after all oil is expelled.
This operation must have the Bleed Screw orifice facing away from the person performing this operation.
•
Twist and pull off Stem Collector Bottle Assembly
25
. See illustration on page 7.
•
Remove Stop Plate Assembly
104
by unscrewing Screws
89
2 off.
•
Unscrew Retaining Nut
50
.
•
Pull off Bottle Adaptor Assembly
32
together with ‘O’ Rings
20
and
28
.
•
Remove End Cap Assembly
35
together with ‘O’ Ring
97
and Lip Seal
9
.
•
Remove Spring
91
.
•
Loosen Locknut
40
with a spanner* and unscrew Jaw Spreader Housing
41
together with ‘O’ Ring
12
.
•
Remove Locknut
40
together with ‘O’ Rings
19
and
15
, withdraw Vacuum Sleeve
42
..
•
Push Head Piston
36
to the rear and out of Head Assembly
58
taking care not to damage the cylinder bore
•
Remove Seal Retainer
43
. Push Lip Seal
8
and Bearing Tape
26
to the rear and out of Head Assembly
58
taking care not to damage
the cylinder bore.
•
Remove Seal Housing
52
and Lip Seal
2
.
Assemble in reverse order noting the following points:
•
Place Lip Seal
8
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*.
•
After fitting Lip Seals
11
, ‘O’ Rings
18
and Bearing Tape
27
onto the Head Piston
36
ensuring correct orientation, lubricate the cylinder
bore and place the piston sleeve* into the back of Head Assembly
58
. Slide the bullet* onto the threaded part of Head Piston
36
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*.
•
Jaw Spreader Housing
41
must be fully tightened onto Head Piston
36
before tightening Locknut
40
against it.
•
Reprime in accordance with the instructions on page 26.
* Item included in the nG4 Service Kit. For complete list see page 18.
Item numbers in
bold
refer to the general assembly drawing and parts list on pages 24 and 25.
H e a d A s s e m b l y
E n g l i s h
Summary of Contents for Genesis nG4
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