Thursday, 15 July 2010

Contourbreton NC260K - Cleaning the vacuum pump


Instructions for cleaning the vacuum pump

1 - Tools required
Jug
Funnel
Hex wrench 11
Hex wrench 30
Strap wrench         
Allen wrench 6
T-handle wrenches with hexagonal opening

2 - Ensure the machine is safe to work on before proceeding with maintenance
Steps to follow:
1- Turn the key selector switch “Maintenance” to the left.
2- Press the button “Open doors”
3- Open the doors                            
4- Turn the key selector switch “Auxiliary” to the left.

3- Drain  old and used oil
Steps to follow:
1 – Open the tap for draining  the oil
2 – Drain oil completely
3 – Close tap

4 - Change oil filter
Steps to follow:
1 – Unscrew the filter cartridge and collect the oil
2 – Grease the seal on the new filter cartridge
3 – Screw the filter cartridge and clean any excess oil

5 - Fill with oil
Steps to follow:
1 – Unscrew the cap on the oil tank
2 – Fill the oil tank with 2 L of new oil
3 – Using the level indicator positioned on the tap check oil level
4 – Replace and screw on tank cap

6 - Removing bracket
Steps to follow:
1 – Unscrew the two pairs of screws used to secure the bracket for the air filter dome cover. 
2 – Move the bracket to access and remove the exhaust filters
7 - Replace exhaust filters
Steps to follow:
1 – Unscrew the 4+4 screws which secure the filter covers in place, remove filter covers.
2 – Unscrew and remove the brackets which secure the filters in place.
3- Remove the two exhaust filters.
4- Screw the 8 screws which secure cover LH side.
5 – Mount the new filters and secure in place with the brackets.

8 - Replace air filter positioned downstream from tank.
Steps to follow:
1 – Unscrew the filter holder dome cover, remove the filter and clean the dome cover with water.
2 – Replace filter and screw dome cover in place.

9 - Replace bracket
Steps to follow:      
1 – Position the bracket and screw the 2+2 screws used for securing the bracket to the tank.

10 - Replace air filter positioned upstream from tank.
Steps to follow:
1 – Unscrew the filter holder dome cover, remove the filter and clean the dome cover with water.
2 – Replace filter and screw dome cover  in place.

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