Dismantling 07530-02200 Mkii - Avdel 753 MkII type Betriebsanleitung

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.
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.
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
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 (
•
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.
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I M P O R T A N T
Safety Instructions appear on page 4.
3 / ") drill and replace plug using a non-hardening sealing compound, e.g. Loctite Multi-gasket 574*.
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