Quarterly Routine - Volvo 9700 Driver's Handbook Manual

Quarterly Routine

•
Flush out holding tank with fresh water.
(the holding tank must be empty and the
vehicle positioned so that the holding
tank evacuation valve is over a sewage
drainage point )
To flush out:
1 Switch the toilet facility power on.
2 Connect a hose to a main water supply.
3 Press the flush button once to open the
slide valve.
4 When the valve opens, insert the end of
the hose down through the bowl, into the
drain pipe. When the valve closes the hose
will be held into position by the paddle
pressure.
5 Turn on the water to the hose and fill the
holding tank, being careful not to overfill.
6 Switch off the water to the hose and open
the evacuation valve to empty the tank.
7 Press the flush button to open the valve
and remove the hose when done.
•
Lubricate the holding tank evacuation
valve. ( to be carried out immediately after
flushing the holding tank ).
Undo the four bolts holding the drain
valve assembly together and remove the
main body section. Lubricate the slide
paddle using lithium grease or similar so
the open/close operation is smooth. Install
the drain valve.
Do not over tighten as this will restrict the
operation of the valve.
•
Disinfect the sink tanks and flush with
fresh water.
Toilet 9