6.6. Draining Air from the Oil Tubes

To be sure that the oil is optimally applied onto the lane, it is necessary to make sure no air bubbles are visible in the two transparent pieces of tube connected to the spray nozzles. If air bubbles are visible (or worse: there is no oil at all in the tubes), the air must be let out. This can be done as follows:

1. Position the unit on a bowling lane (see 'Mounting the Unit onto a Bowling Lane').
2. Make sure the start indicator  within the start button  burns continuously. (If this is not the case, go to 'TROUBLE CHECKS').
3. Press the illuminated green start button . The air pump will be switched on and after a few seconds the unit will start moving. The start indicator  will flash.
4. As soon as the unit starts moving, briefly press the start button  to temporarily halt the conditioning session; the air pump will stay on.
5. For the left spray nozzle, turn open the shut-off plug at the top of the nozzle. The oil should now pour out. If the air bubbles do not move, turn the plug open further.
6. If the air bubbles have disappeared, wait another 10 seconds before tightening the shut-off plug; this is to ensure there is no more air left in the nozzle.
7. Repeat items 5 and 6 for the right spray nozzle.
8. The drained oil can be re-used provided it is not polluted.