Avdel 0753 MkII, Instruction Manual

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32
D i s m a n t l i n g I n s t r u c t i o n s
I n t e n s i f i e r 0 7 5 3 1 - 0 2 2 0 0 - M a i n t e n a n c e
•
When dismantling the intensifier assembly, first disconnect the air supply hose to intensifier inlet Connector 22 .
•
Using an Allen Key* undo four Screws 27 and remove Protection Plate 24 .
•
Disconnect the trigger hose (item 22 on page 28 or item 29 on page 30) from the intensifier Valve 43 or 48 by depressing the
outlet collet and withdrawing the hose.
•
Remove Cover Plate 4 and Gasket 35 by removing Screws 37 and Washers 36 using Allen Key*.
•
Ensure that gasket is not damaged to ensure a proper seal on assembly.
•
Invert intensifier assembly and drain oil from reservoir into a suitable container.
•
Remove Quick Release Connector 32 together with Connector 31 and Seals 33 with suitable spanner*.
•
Remove intensifier Valve 43 or 48 by removing the fixing screws with a suitable spanner taking care to retain ‘O’ Ring 21 located
in the Intensifier Body Casting.
•
Remove Screw 19 using a suitable Allen Key* and remove Silencer Cover 16 , Foam Silencer 15 , Spacer 18 and Retaining Plate
20 .
•
Pull off the 6mm Plastic Tube 41 from Vacuum Connectors 42 .
•
From the base of the intensifier insert a 3mm Allen Key * through the two holes and unscrew the Vacuum Connectors 42 . Note:
•
Care must be taken as the vacuum connectors are locked and sealed in place using Loctite 574.
•
If difficult to remove, the vacuum connectors can be drilled out using a
3
/
16
” or 4.7mm diameter drill.
•
To reassemble the Vacuum Connectors 42 , the following procedure must be followed: -
•
Soak the vacuum connectors in a suitable primer, i.e. Perma Bond A905
•
Place a drop of Loctite 574 in the intensifier threaded hole.
•
From the base of the intensifier insert the Allen Key * through the hole. Ensure that the Allen Key * is free from Loctite 574
before inserting into the vacuum connector.
•
Rotate the Allen Key while applying Loctite 574 to the base of the vacuum connector.
•
Screw the Vacuum connector into the intensifier, ensuring that there is sufficient Loctite 574 at the base of the fitting such the
thread is not visible.
•
Using a screwdriver, carefully remove internal Retaining Ring 14 . Clean and inspect groove for sign of damage.
•
Using Extractor*, insert male threaded end into End Cover 12 and withdraw it along with intensifier Sleeve 28 and ‘O’ Rings 10
and 13 .
•
Insert Rod* through the connector orifice at the front of the intensifier body and tap out Piston Rod 9 and Piston Assembly.
•
Using a suitable Allen Key*, unscrew two Screws 25 and remove End Cover 12 from intensifier Sleeve 28 .
•
Remove Seal Plug 7 with spanner*.
•
Insert rod* through connector orifice at the front of the intensifier body and push out Seal Housing 5 and associated ‘O’ rings and
lip seals.
•
Remove Valve Housing Assembly 34 from the main body with a suitable spanner*. Clean by blowing through with a low-pressure
air jet.
•
Remove Piston Rod 9 from intensifier Air Piston 11 by gripping the first 20 mm (
3
/
4
”) of the rod in a vice fitted with soft jaws,
taking care not to damage or mark the working surface.
•
Unscrew locking Nut 17 with a suitable spanner*.
•
Assemble in the reverse order of dismantling, observing the following:
•
Clean all parts and renew all ‘O’ rings.
•
Lubricate all seals using Moly Lithium grease.
•
Valve Housing Assembly 34 must be refitted using a thread sealing adhesive.
•
Assemble the Piston Assembly using a new Nut 17 .
•
End Cover 12 must be fitted correctly inside Retaining Ring 14 . The tool must not be operated if the end cover has been omitted.
* Refers to items included in the 0753 MkII service kit. For complete list see page 23.
Item numbers in
bold refer to the illustration and parts list opposite.
I M P O R T A N T
Priming is ALWAYS necessary after the tool has been dismantled and prior to operating.