Tracer MARKSMAN M-L AM06016 - Manual (Page 5)

2 feet) with the receiver. Once the general area of the leak has been determined, the
receiver probe is very useful to pinpoint the exact location of the leak. For maximum
effectiveness, be sure that pressure is maintained in the brake system during the entire
search. If no leaks are discovered, check the air horn, windshield wiper and other air-
actuated equipment. Leaks in these accessories can produce an abnormal gauge drop.
Use the hollow air probe or use the receiver alone.
TIRES: Sweep the tire, including the rim and valve system, to search for leaks. A sweep
with the Marksman receiver will locate even the smallest of leaks. The receiver normal-
ly finds leaks of sufficient magnitude before they cause downtime on the highway. In
addition, you can put a soap solution on tires and listen for the bubbles to pop. Use the
hollow air probe or use the receiver alone.
LEAKING ENGINE VALVES: All valves should emit a sound in a very close meter and
sound pattern when the probe is placed on the intake manifold opposite the intake port.
A suspect valve can then be positively checked, with the engine off, by bringing that par-
ticular cylinder to full compression and placing the probe on the valve stem. The "hiss"
of escaping gas across the valve seat will be distinctly audible on the leaking valve.
Using the same procedure can check exhaust valves, however, signal intensity will be
much greater. Use the solid contact probe.
EXHAUST SYSTEMS: With the engine idling, pulsation in the exhaust system can be
detected with the receiver. Leak points normally give off a much louder and sharper
sound. Use the hollow air probe or use the receiver alone.
DOOR AND WINDOW GASKETS, BODY WEATHER-STRIPPING, DOOR AND TRUNK
SEALS AND FUEL TANKS:
When placed inside a vehicle,
a completely empty fuel tank
or any other enclosure, the
emitter can easily locate
leaks in weather-stripping,
seals or the structure itself.
Use the hollow air probe or use the receiver alone.
ADDITIONAL APPLICATIONS:
HYDRAULIC SYSTEMS: Partially blocked or bypassed valves in high-pressure hydraulic
systems can be difficult and costly to find with conventional methods. Since hydraulic
systems employ very high pressures, the intensity of the ultrasonic sound given off by an
internal leak is extremely high and easily detected by the receiver. Use the hollow air
probe, solid contact probe or use the receiver alone.
WATER LEAKS IN ROOFS, WINDOWS OR DOORS: Place the activated emitter below
the suspected leak area. Check the suspected part of the roof with the receiver to iso-
late where the leak originates. This will also aid in the detection of any leaks in the area.
Use the hollow air probe or use the receiver alone. (See figures to right)
Emitter
Receiver
Emitter
Receiver
TECHNICAL SPECIFICATIONS
Dimensions: Width: 4.0" (10.2 cm)
Depth: 1.5" (3.8 cm)
Length: 6.0" (15.2 cm)
Weight: 3 lbs. (1.4 kg)
Housing: Chemical resistant ABS
with protective rubber boot
Battery Life: Approx. 20 hrs.
Power Requirement: Standard 9-Volt
Power Consumption: 26 mA, typical
Frequency Response: 36,000-44,000Hz
Circuitry: Solid state
Headphones: Full-sized noise attenuating
Headphone Connector: 3.5m phone plug
Operating Temp. Range: +10 to +60 degrees Celsius