Blue Bird Coachworks 450 LXi, Руководство пользователя

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4-11 Waste System
450 LXi Owner Manual
~ 4-11-2 ~ Rev. “C”
As the Flush Lever is released, the Flush Activator returns to the
normal rest position redirecting pressurized air to Port 2, Port 3 and
Port 4. The Bleed-Off Plug [12] bleeds off the air (black tube) under
the piston, causing the spool to move downward, gradually closing
the water passageway. The air having been bled off the top of the Air
Cylinder Port 8 (white tube) through the end of the Flush Activator
Vent [2] (blue tube), allows the Air Cylinder to close the Flapper
allowing water to accumulate in the bowl, restoring a proper water
surface area. 3.
Near the bottom of the piston stroke, the air passageway from Port 10 (yellow tube) to the Hopper Port 11 is unblocked
for 4-11 seconds to pressurize the hopper and expel the waste contents over the trap and into the waste line.
As the A/W Seq. Spool reaches the bottom position, the water supply is shut off, completing the fl ush cycle.
4.
5.
In the event of air supply failure, the spring in the Air/Water Sequence
Valve maintains the valve in the closed position, blocking the water
passageway. The fl apper will open and allow water in the bowl to fl ow into
the hopper forming a water seal.
4-11.1.2 Cleaning
Use Micro-Clean Organic Spray Cleaner, P/N 24542, or equalivent cleaner approved by Microphor designed for Microfl ush
toilets. Caustic drain openers or non-biodegradable cleaners should not be used.
While depressing the fl ush activator, turn OFF the water. Allow the bowl cleaner to fl ow into the lower chamber. Keep the
fl ush deactivator pressed.
Insert bowl brush into lower chamber and agitate mixture.
Remove the bowl brush and release the fl ush activator.
Turn the water ON and fl ush twice to rinse thoroughly. If using a cleaner other than one with a Microphor Biological Waste
Treatment System, check with your Coachworks Service Department or with Microphor for acceptable cleaners. You can
access Microphor’s website by
http://www.microphor.com
4-11.1.3 Clearing Plugged Toilet
Turn water OFF, press fl ush handle and hold to remove water from the bowl. The fl apper in the bottom of the toilet will remain
open until the fl ush handle is released. Check to see if the restriction can be removed from the hopper with a hooked wire,
being careful not to damage the rubber seal on the fl apper or the mating surface on the hopper. If obstruction cannot be
picked out with a hook or tongs, use a plunger by pushing in slowly and pulling out quickly to pull object back into the hopper.
If necessary, turn the air OFF and use a snake inserted through a 12” plastic pipe placed in hopper. The pipe will protect the
fl apper seal from damage. If the Air/Water Sequence Valve will not operate with the water turned OFF, hold the fl ush lever
down and turn the water ON and OFF quickly to free the valve action. When the passage becomes clear, turn the water ON
and press the fl ush handle to start the fl ush cycle.
1.
2.
3.
4.
4-11.1.4 Winterizing
Shut OFF water to toilet. Flush toilet three times or until water no longer fl ows into the bowl.
Unhook water supply at angle stop. Empty water in line into receptacle. Shut OFFf air supply to
the toilet. The unit is now prepared for freezing temperatures. Open petcocks on drip legs and air
receiver drain after shutting down air compressor and isolating air lines.