M&C TechGroup ECM-ExII Operator's manual - Manual (Page 20)

20
Gas sampling and gas conditioning technology 3-3.0EX-ME

Take away conveying belt

and remove the old hose set

from the guides by the hose
connectors;

Press the two contact pulleys

and check whether the spring pressure is still sufficient, if not,
the contact springs have to be changed;

Put the new hose set

with the hose connectors into the guides of the conveying belt

;
N O T E !
Only the usage of the original hose set guarantees a perfect function.
Never lubricate the hose.
Before mounting the pump check all parts for impurity and clean if
necessary.

Put the conveying belt

with the new hose

into the dovetail guide of the pump body;

Press conveying belt at the recessed grips and simultaneously turn the S-bolt

anticlockwise
until it snaps;

Switch on pump.
18.3.1 CHANGE OF CONTACT PULLEYS AND SPRINGS

Take off the cooler of the mains;

Unscrew the nut of the pump head (span of the jaw 5,5);

Draw the pump head out of the motor shaft;
Now the driver can picked out of the pump head and is ready for maintenance.

The removal of the springs (4 pcs.) away from the driver is possible without the aid of any
tools. Therefore press together the spring and take it out of the groove in the driver
respectively out of the boring in the axle. Now the roller bearing axle can be dismounted and
the contact pullets are ready for change.

Remounting happens in the opposite way.
N O T E !
While mounting pay attention to the fit of ‘rotational axisdriver’.
Use genuine spare parts only!
18.3.2 CLEANING THE PUMP HEAD

When changing flexible tube or other parts, inspect all parts for dirt before assembling the
pump head and clean them if necessary.

As far as possible clean the parts with a dry cloth. Solvents should not be used as they can
attack the plastics and synthetic rubber parts. If a compressed air line is available, blow the
parts out with it.
C A R E !
Aggressive sample is possible!
Wear protective glasses and proper protective clothing during
disassembly, repair or cleaning!