WA R N IN G:DO NOT USE WITH GASOLINE.

FIRE AND EXPLOSION HAZARD! DRILLING HOLES IN TANKS CONTAINING GASOLINE OR OTHER

FLAMMABLE LIQUIDS CAN CAUSE SPARKS AND/OR HEAT SUFFICIENT TO CAUSE IGNITION OF TANK VAPORS.

TANK TENDER SYSTEM CHECK-OUT FOR PRESSURE LEAKS

A leak can occur in three places within the Tank Tender System: 1) within the instrument panel, i.e . pump, valves, tubing connectors, gauge, etc 2) somewhere in the ⅛ " OD nylon tubing that runs between the instrument panel and the tank penetration fitting (tpf)3) within the tpf itself The following simple procedure will allow you to quickly isolate a pressure leak within the system:a) Instrument Panel Check-out - remove the ⅛ "-nylon tubing from the tubing

connector at the back of the valve and install one end of a 1 to 2' length of ⅛" tubing into the valve (push in firmly). Then place the free end into a bottle full of water and pressurize the system by pushing the appropriate button and pumping the pump to see if the pressure reading for the head of water in the bottle holds. If the pressure holds, then the leak is elsewhere in the system. To reconnect the tubing to the instrument panel first cut ¼" off tubing end, then push firmly back into the tubing connector on the valve back. If pressure does not hold, check tightness of all fittings and retest.

b) Tubing Run From Instrument to TPF Check-Out - remove the tubing from the tubing connector at the tpf and place in a bottle of water. Then pressurize the system as in step a above. If the pressure holds in the tubing run and instrument, then leak must be in the tpf. When reconnecting the tubing run to the tpf remember to cut ¼" off tubing end and push back into tubing connector firmly. If pressure does not hold, replace instrument tubing run. Or locate puncture, cut out and splice run with a union.

c) Tank Penetration Fitting (TPF) Check-out - if leak has been isolated to the tpf, remove from tank and check for damage to the tube or fitting. If it is just one tank that is leaking, cross check that tank with a tank that is reading accurately, i.e., disconnect both tank's tubing runs at the tpf tubing connectors, then connect the accurate tanks tubing run into the leaking tank's tpf. Now retest that tank run at the unit. If it no longer leaks, then leak is not that tpf. If it does leak, then the leak is in that tpf. The connection between tank and tpf should be airtight.

Notes:

1) the end of the nylon tube of the tpf should be cut off 1" above the tank bottom - if the end of the nylon tube is jammed into the tank bottom the instrument will not read accurately. The tpf should be installed over the deepest part of the tank with the tube hanging straight down to within 1" of the tank bottom. Tube should hang straight and not be curled, bent, or blocked. Tube end cut too short above tank bottom will give short readings.

2) if the gauge needle does not fall back to zero when all buttons are released, or sticks at some level above zero, then the gauge may be over-pressurized or have been pumped over the end capacity line, In some cases the gauge may be recalibrated (call for instructions) but in more extreme cases a new gauge may be needed. Causes of over-pressurization: a) reading taken with deck fill pipe full (extra liquid in fill pipe plus full tank, may exceed gauge capacity, b) kink or blockage in nylon tubing run between instrument and tpf (no air can pass), c) blockage in tpf tube inside tank (no air can pass). It is better to have excess capacity on the gauge than be at full capacity with a full tank. If a re-occurring problem, go to a larger size gauge.

3) if the gauge has been disconnected from the instrument panel, a new flat gasket might be needed at the t-fitting. If system is leaking, check this flat gasket.

4) if tubing has been disconnected from tubing connectors, always cut ¼" off of the tubing end and push back into tubing connector firmly, until a click is felt or heard. If nylon tubing is not completely pushed into tubing connector will leak at this point (improper disconnection can cause leak - see instructions above)

5) to test pump, cover the only open exhaust port on the valve closest to the pump and pump very gently (1 stroke); if pressure holds at whatever level pumped to, then the pump is functioning accurately. (There is only one open exhaust port in valve assembly.)

6) if there is an existing electrical system in the tank, remove before installing tpf.7) fluid lying in nylon tubing between unit and tank will cause irratlc reading; taking

readings with deck fill pipe full can force fluid up into nylon tubing run - Do not test with deck fill pipe full. Disconnect tubing at both ends and clear fluid out of line.

If a problem still exists, please call for help. (253) 858-8481 Fax: (253) 858-8488

UL LISTED

OPTIONAL: Purge Valve operation for holding (waste) tank -Flip toggle to "purge" prior to reading a holding tank; air will bypass gauge and purge TPF tube, if clogged; then flip back to "read" release valve button, repress and pump again for tank level reading. Do not pump beyond gauge capacity. OPERATION CHECKOUT -Select the tank to be tested and very slowly pump (only 1-2 strokes are necessary). Gauge needle should rise slightly above the level of the fluid in the tank then settle back to the level of the fluid. If the needle pegs over the red line there is probably a kink or blockage in the tubing between the instrument and tank. If the needle goes up then slowly back to zero, the tank is empty or there is a leak between the instrument panel and the TPF. (See "Tank Tender System Checkout Procedure for Pressure Leaks.")

CAUTION: Do not take reading with deck fill pipe full. If a head of fluid exists above the top of the tank (ie., in the deck fill pipe) the gauge needle will charge up; Should you observe this, release the push button and use enough water or fuel to empty the fill pipe before testing again. TANK CALIBRATION -Boats and RVs are constructed of a wide variety of tank shapes and sizes. For simple shapes the following methods of calibration seem to work: 1. Measure the width and length of the tank in 1" levels and calculate the

number of cubic inches for each inch of tank height. There are 231 cubic inches in a gallon. Therefore, the number of cubic inches divided by 231 will give you gallons per inches of the tank height

2. A tank can also be calibrated by filling with a metered flow hose or with 2 or 5 gallon container and reading the Tank Tender each time 2 or 5 gallons are poured into the tank.

WARRANTY: Hart System, Inc. expressly warrants its product to be free of defects in materials and workmanship. The sole remedy for breach of this or any other warranty shall be the repair or replacement of the defective product or part limited to a period of one year from the date of shipment. Prompt notification is required. This warranty does NOT cover damages or defects caused by negligence of the consumer or middleman, nor does it cover any damage caused in shipping. Items returned for warranty work must be shipped prepaid and insured. NO OTHER WARRANTIES, express or implied, are given beyond these specifically contained in this document Hart Systems, Inc. shall not, under any circumstances, be liable for special or consequential damages such as, but not limited to, damage or loss of other property or equipment, loss of profits or capital, personal injury, or claims of customers of the purchaser. The remedies of the purchaser set fourth herein are exclusive and the liability of the seller shall in no event exceed the cost of the product.

TANK TENDER INSTALLATION AND OPERATION INSTRUCTIONS.

PLEASE READ BEFORE INSTALLATION:INSTRUMENT PANEL LOCATION: Locate the Tank Tender instrument panel out of the weather and wherever readings are convenient and it is easy to actuate the air pump, but not below the level of the top of the tanks to be measured. When establishing the panel location, consider the necessity of running ⅛" nylon tubing from the back of the instrument panel to the tank to be measured. Bulkhead cutout for the instrument panel should be 3 1/16" wide by 5" high. Screws and washers are provided for panel mounting. If possible, some room should be left adjacent to the instrument panel for tank calibration cards. TUBING: ⅛" OD nylon tubing should be run between the instrument panel and the tank to be measured. CAUTION! Tubing should nol be pinched or kinked, or run in locations where it may come to harm. Keep tubing above the level of the tank to be measured so that in the event of a tube being cut, siphon action will not be possible. Insert nylon tubing from each tank into the brass "Tubing" connectors on the end port of the instrument valves. Push in firmly and test with a light pull on the tubing. (See illustration, on back of page.) IMPORTANT: Constant exposure at temperatures of 180° F will embrittle tubing. INSTALLATlON OF TANK PENETRATION FITTING (TPF) -The TPF has o-ring seals for plastic or metal tanks. Select a location on the top of the tank which is over the deepest part of the tank. Measure the depth to the bottom of the tank and cut the nylon tube to clear the bottom of the tank by 1 ". The preferred place to install the TPF is in a fitting plate or fitting plug. The TPF should not be installed directly into tank tops that are too thin. A minimum of four complete threads is preferred. Should a fitting plate or plug not be available and the tank top is thin, the TPF should be installed through a 3/16 " hole with a stainless steel flat washer, lock washer and 10-32 nut inside the tank. This can only be done if the tank has an inspection plate to permit access. In every case, the TPF should be installed tight enough to compress the O-ring on the outside tank surface. The installation must be done in a manner that will prevent metal shavings from collecting in the tank while drilling and tapping. The shavings can cause internal corrosion of metal tanks and clog the fuel line. After the TPF is installed, the tank should be pressure checked for leakage at the test pressure indicated on the tank label. ALTERNATE INSTALLATION OF TANK PENETRATlON FITTING -If top entry of TPF is not possible, TPF can be installed into tank side, approximately 1" above tank bottom. (Not for waste tanks, call for other options.) In this case, there would be no tube inside the tank, as the TPF fitting is now located at the depth that the nylon tube would reach if installed from the tank top. Be sure the TPF hole is drilled and tapped precisely so that there is an air tight connection between the tank and fitting, as there should always be. Run the flexible nylon tubing (outside the tank) straight up the outside of the tank (attach to tank side, do not have tubing run to unit laying flat) and continue on to unit. Operate as normal.

HART SYSTEMS INC. REV. 04/01

To Connect

Push tubing in untillocked (hear andfeel click)3-1/16"

5"

PANEL CUTOUT

COLLETT

To Disconnect

Depress collett in and holddepressed throughout disconnection, must push tube endinto connector, and then pull tube end out. Release collett.

Please note: Improp-er disconnection willcause damage toconnector and totube end (leak).

TUBING CONNECTOR OPERATION

5/32 hole with 10x32 thread in top of tank. Use nut & washer on tankstoo thin to tap.

45° cut 1" up from tank bottom

TANK PENETRATION FITTING