Transducer Kit

TM 9-2320-361-24-1

0016 00

SIMPLIFIED TEST EQUIPMENT FOR INTERNAL COMBUSTION ENGINE--REPROGRAMMABLE

(STE/ICE-R) TROUBLESHOOTING INTRODUCTION (Contd)

Transducer Kit

The transducer kit contains a pulse tachometer transducer, a pressure and vacuum transducer, and

necessary adapters (bushings, plugs, tees, etc.). Also included in the transducer kit are a current probe

for measuring current and a test probe cable for measuring voltage and resistance.

Many of the fittings in the transducer kit do not have a part number marked on them and are referred

to by the TK item number and name. In table 4, each fitting is identified by an item number, TK item

number, part number, and item name.

Before installing any transducer kit item on the vehicle, be sure to clean the mounting surfaces. This is

particularly important if you are going to open fuel lines or tap into the manifolds. Dirt particles

entering the engine may cause damage to both the engine and transducer kit items. The transducer

should be kept clean and free of dirt and grease, and should be handled with reasonable care.

There are two pressure transducers in the transducer kit.

TK item number 17 of the transducer kit is a pressure transducer used to measure cylinder

compression, oil, fuel, and other pressures in excess of 25 psi. This transducer is marked with a

blue stripe around the connector.

TK item number 22 of the transducer kit is also a pressure transducer. This transducer is used to

measure manifold vacuum pressure, air box pressures, and fuel pressure. This transducer is

marked with a red stripe around the connector.

The pressure transducers have a small breather hole on the side of the housing, which should be kept

clean and unplugged. Do not use high-pressure shop air to clean the pressure transducers.

The pulse tachometer, TK item number 28 of the transducer kit, is used to sense the speed of

combustion engines. Before installing the pulse tachometer, ensure that the slotted hole in the engine

tachometer drive shaft is clear and not hard packed with lubricant.

All measuring devices in the transducer kit have an identification resistor within the electrical

circuitry. The VTM uses this identification resistor to verify that the correct transducer is connected for

the measurement being made. If the correct transducer is not connected for the test being performed,

error code E002 will be displayed on the VTM.

0016 00-10