24
M a i n t e n a n c e
Every 500,000 cycles the tool should be completely dismantled and new components should be used where worn, damaged or when
recommended. All ‘O’ rings and seals should be renewed and lubricated with Moly Lithium grease EP 3753 before assembling.
I M P O R T A N T
Safety Instructions appear on page 4.
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.
Dismantling of the 07530 MkII and 07532 MkII are covered separately. For the 07530 MkII refer to the dismantling procedures below
and for the 07532 MkII refer to pages 26-27. Item numbers in
bold
refer to the general assemblies and parts lists for the respective
model on pages 28-31.
Prior to dismantling the tool, you will need to remove the nose equipment.
For total tool servicing we advise that you proceed with the dismantling of sub-assemblies in the order shown below after having
disconnected the hydraulic hose from the intensifier unit and the trigger air line from the intensifier valve, thus separating the pistol
unit from the intensifier unit.
To dismantle the 07532-02200 MkII refer to pages 26-27.
TAIL JAW CYLINDER
•
Manually flip the Clip
47
up and remove the End Cap
38
.
•
Using an Allen Key*, remove one Cap Head Screw
44
ensuring that any trapped air in the tail jaw cylinder is exhausted. Remove the
second Cap Head Screw
44
.
•
Pull out Rear Plug
46
.
•
Extract air tail jaw components, comprising Tail Jaw Piston Assembly
14
, Spring
13,
Jaws
9
and Jaw Housing
8
.
•
Remove plug at rear of piston assembly using an Allen Key* and a bar through the large slot in the turret.
•
Clean out turret using a 4.7mm (
3
/
16
”) drill and replace plug using a non-hardening sealing compound, e.g. Loctite Multi-gasket 574*.
•
Remove piston seal ‘O’ Ring
10
.
•
Using an Allen Key*, remove all five handle moulding securing Screws
34
,
39
and Nuts
33
from the tool handle.
•
Grip Barrel
25
in a vice using soft jaws* to avoid damage.
•
Using a box spanner*, unscrew Barrel Plug
7
, preventing Barrel
25
turning by using an open ended spanner*.
•
Disconnect Air Tail Jaw Concertina Tube
12
from Switch Block
28
and pull Tail Jaw Cylinder
6
from tool.
•
Remove ‘O’ Ring
4
, Rubbing Strip
15
and Barrel Return Spring
16
.
•
Free length of Spring
13
should be 38.1mm (1.5”). Replace if necessary.
•
Coat the tail jaws with Moly Lithium grease before assembling.
•
Assemble in reverse order of dismantling.
HYDRAULIC PISTON
•
Remove Tail Jaw Cylinder
6
as described earlier.
•
Grip Body
19
in vice using soft jaws* to avoid damage, undo Stroke Limiter
17
.
•
Grip Barrel
25
in soft jaw vice, pull Body
19
from Barrel
25
(a small quantity of hydraulic oil will be ejected from inside body).
•
Remove Piston
18
carefully so as not to damage body bore.
•
Remove Seal
3
.
•
Seal
1
is difficult to remove without damaging, but can remain in place during cleaning (provided it is not affected by cleaning process). If
however, Seal
1
requires renewing proceed as follows:
•
Using spatula*, prise out Seal
1
from Body
19
, taking care not to damage body cavity and bores. The removed Seal
1
MUST be
discarded.
•
To replace Seal
1
, unscrew Hydraulic Hose Assembly
22
and fit a spare Bleed Plug Assembly
2
screwing it in to bring inside face level
with internal bore.
•
Unscrew existing bleed plug until inside face is level with internal bore. This will provide a smooth passage for insertion of new Seal
1
through rear of body.
•
Ensure the seal is well greased and the correct way round with the open end of the seal facing the rear tail jaws.
•
Complete assembly in reverse order of dismantling.
* Refers to items included in the 0753 Mkll service kit. For complete list see page 23.
Item numbers in
bold
refer to the general assemblies and parts lists on pages 28-29.
D i s m a n t l i n g 0 7 5 3 0 - 0 2 2 0 0 M k I I
Summary of Contents for 0753 MkII
Page 2: ......
Page 38: ...38 Notes...
