4-/5-Gas Measuring Instruments Unit AVL 4000
5-8 Service Manual
5.3.4 Pump
• Disconnect the hoses from the gas IN and condensate IN side.
• Disconnect the mains plug and take it right out of the socket.
• Remove the screwable, right-angle connector from the instrument’s rear panel
(1 slotted screw).
• Unscrew the 4 Phillips screws on the pump unit from the rear panel. The four rubber
vibration pads remain attached.
• Replace the pump unit.
Reassemble in reverse order.
Fig. 5-6
Rear view
View from above
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