Blue Bird M380 2003, Owner'S Manual

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M380 Owner’s Manual____________________________Interior and Exterior Systems Operation - Waste System – 4-13
Rev. “F” 4-13-7
4-13.8.6 Air System Design
Filter-regulators are available in a variety of sizes and types. Their purpose is to remove water and
foreign matter from the air line and to maintain a constant pressure of 60-65 psi to the toilet. The
following steps must be observed to assure moisture will be removed from the air line.
1. Drain air compressor receiver regularly. Most water tends to accumulate at this point.
2. Install drip legs with condensate drains at all low points in air piping.
3. Whenever possible, grade all air lines back to the air receiver or drip leg assembly and drain
regularly.
4. The air supply to the toilet must be taken from the top of the main or branch air line.
4-13.8.6 Troubleshooting
Your Microflush® toilet is designed to give you years of trouble-free operation. Please check the
following before beginning any service or repair.
Water supply: 1. Is the water turned on?
2. Is the water pressure between 20 and 50 psi for pressure water system?
3. Is there 6 feet minimum of head for gravity systems?
Fluctuating or high water pressure can cause intermittent problems with the
toilet operation. Check the water pressure at different times of the day (i.e.,
early morning, noon, evening) to determine if you have fluctuating or high
water pressure. A pressure-reducing valve installed on the incoming water
line will assure you have even pressure. Make sure no check valve is
installed before the Air/Water Sequence Valve.
Air system: 1. Is the air turned on?
2. Is the air pressure set at a constant 60-65 psi?
3. Do you have any air leaks or kinks in the air system?
4. Do you have water in the air system? This usually causes irregular timing.
Drain the compressor tank and check the filter regulator and drip leg(s) for
water. To check for water in Air/Water Seq. Valve, remove Bleed-Off Plug,
put finger over screw opening and flush. If water is present, it will squirt out. If
water is detected, then the air cylinder and airlines must also be drained.
Cycle time: 1. Is the flapper cycle time set correctly at 4-7 seconds?
2. Is the bleed off assembly plug blocked? Remove, clean and reinstall.