PHOENIX METAL PRODUCTS, INC
TL600/TL700 LAVATORY SERVICE TRUCK
16
MAY 2018
CHAPTER 1
GENERAL INFORMATION AND OPERATION INSTRUCTIONS
SECTION 2- SYSTEM DESCRIPTION
FLUSH TANK
THE FLUSH TANK CAPACITY IS 240(TL600) OR 300(TL700) U.S. GALLONS. IT IS USED FOR THE
RINSING AND REPLENISHING OF AIRCRAFT LAVATORIES. IT IS FABRICATED OF 12 GAUGE 304
STAINLESS STEEL. THERE IS A 1-1/4 INCH PVC BALL VALVE LOCATED ON THE OUTBOARD RIGHT
HAND SIDE, BOTTOM FOR DRAINING. A 2” MALE NIPPLE STANDPIPE IS LOCATED ON THE TOP
LEFT HAND SIDE FOR FILLING OF THE FLUSH TANK. A 2” FEMALE THREADED CAP IS TETHERED
TO THE STAND PIPE TO CLOSE THE FILL POINT. A LEVEL GAUGE IS LOCATED NEXT TO THE FILL
PORT
PUMPING SYSTEMS
THE PUMPING SYSTEM ON THIS VEHICLE IS FOR RINSING AND REPLENISHING OF CHEMICALS
FOR THE AIRCRAFT LAVATORY. THE PUMP SYSTEM IS MANUALLY OPERATED USING A
CONTROL SWITCH AT THE WORK PLATFORM. A SPRING REWIND HOSE REEL WITH 25’ OF HOSE
IS SUPPLIED TO STOW UNUSED HOSE. THERE IS A FLOW METER TO DETERMINE THE AMOUNT OF
FLUID PUMPED INTO THE AIRCRAFT. THE METER IS RESETTABLE. THE METER SHOULD BE
RESET AFTER EACH PUMPING OPERATION. THE METER IS LOCATED ON THE TOP DECK AT THE
CONTROL STATION.
WATER PUMP
THE WATER PUMP IS USED TO REPLENISH OR RINSE THE AIRCRAFT LAVATORY. THE PUMP IS A
BRONZE CONSTRUCTION, GEAR PUMP AND IS OPERATED BY A HYDRAULIC MOTOR. CONTROL
FOR THE OPERATION OF THE PUMP CAN BE DONE FROM THE REAR OF THE TRUCK. A FOOT
SWITCH OPERATES THE PUMP CONTROL. A DRAIN BACK CIRCUIT IS ALSO INCORPORATED TO
ALLOW FLUID IN THE HOSE AT THE AIRCRAFT END, TO DRAIN BACK WHEN FILLING IS
COMPLETE. THIS PREVENTS THE OPERATOR FROM GETTING SPRAYED WHEN DISCONNECTING
FROM THE AIRCRAFT.
HYDRAULIC SYSTEM
THE VEHICLE UTILIZES HYDRAULIC PRESSURE TO OPERATE THE PUMPING SYSTEM. A
HYDRAULIC PUMP IS MOUNTED TO THE FRONT OF THE VEHICLE ENGINE AND HYDRAULIC
FLOW IS CONTROLLED BY THE USE OF AN ELECTRIC CLUTCH TO TURN THE PUMP ON AND OFF.
THERE IS A STAINLESS STEEL HYDRAULIC TANK MOUNTED ON THE PASSENGER SIDE MIDWAY
BACK THAT IS INSIDE THE MODULE. THIS RESERVOIR HAS A FILTER, A LEVEL GAUGE AND A
FILL PORT. THE FILL PORT IS LOCATED ON THE TOP DECK. THERE IS A SHUTOFF VALVE
LOCATED ON THE SIDE RAIL OF THE CHASSIS TO CLOSE OFF THE FLOW OF OIL TO THE PUMP
FOR REMOVAL OF THE TANK OR PUMP.
A HYDRAULIC SYSTEM RELIEF VALVE IS LOCATED ON THE SIDE OF THE HYDRAULIC TANK TO
PROTECT THE SYSTEM FROM EXCESSIVE PRESSURE. THIS DEVICE SHOULD ONLY BE ADJUSTED
BY TRAINED MAINTENANCE PERSONNEL.
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