UAE
QA
Mar
Egypt
Kuwait
Turkey
India
| Export Markets: | North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe |
|---|---|
| Place of Origin: | Jiangsu in China |
| Packaging Details: | PLASTIC |
Specifications
Measuring range:0-700Kpa(0-100psi)
Accuracy:class 4
Different kond of testing connectors are available for domestic or foreign vehicle designs
Ⅰ. Function
It is necessary to test fuel pressure during trouble shooting of fuel injection system. When an engine is working, high fuel pressure will make the gas mixture of engine so heavy as to cause malfunction of engine, incomplete combustion, increase of carbon deposition, and over-standard emission of tail gas, etc. On the other hand, low fuel pressure will make the gas mixture of engine so thin as to cause burning of injector and detonation of engine, this will further damage piston, piston ring, connecting rod and crankshaft, and as a result, the automobile wouldn’t work. Therefore, it is essential to check the fuel system of an engine for normal operation of the car during each maintenance period.
This product helps to provide useful information of a fuel system, such as incorrect fuel pressure and pipe leakage, etc.
Ⅱ, Safety rules for testing and cleaning of system
1. Wear protective glasses;
2. Choose a well-ventilated working area, and never inhale waste gas;
3. Prepare a fire extinguisher to prevent fire;
4. Never touch revolvable or over-heated parts(such as exhaust pipe) of engine during operation;
5. Be sure to put the transmission shift lever on “P”(automatic speed change box) or neutral position and pull tight the grip brake.
6. Never put tools on the storage battery, otherwise it would cause short circuit, body injury or damage of the tools and storage battery;
7. Never smoking or opening fire near the automobile, since fuel vapor or gas emitted from the storage battery easily burns and explodes;
8. Ask a person to keep a close watch on what is going on during fuel pressure test;
9. When the fuel pipe is being taken down or connected, put cloth at the adaptor of the fuel pipe to prevent fuel spill and then properly treat all the cloth that has absorbed fuel;
10. If there’s any fuel spill, clean off the spilled fuel immediately;
11. Keep away from the cooling fan of engine, since the cooling fan may suddenly rotate in some automobile;
12. Relieve the fuel pressure before taking down the fuel pipe;
13. As for automobiles equipped with air bags, strictly observe relevant rules listed in the maintenance manual; otherwise the air bags would suddenly unfold and cause body injury;
14. After testing, discharge all the fuel in the connection pipe of the pressure gauge into a proper container, and then take down the pressure gauge and connection pipe.
Ⅲ Check before testing
Before testing, please carefully read the points for attention on test and the maintenance manual offered by the manufacturer, and ask whether the automobile has been repaired recently, if it has been repaired, the repaired part shall be especially checked; the engine and fuel system shall be thoroughly examined by eyes, and the fuel pipe and vacuum pipe shall also be checked to find out whether there’s any loosening or breakage, and whether the fuel pipe, vacuum pipe and pipeline are properly connected.
1. Check of the fuel system
(1). Check whether there’s fuel leakage, and if there’s leaked fuel, clean off it immediately, and remedy the trouble;
(2). Check whether the fuel tank of fuel steam recovering system is in good condition, and whether there’s enough fuel in the fuel tank( never depending on the fuel gauge only);
(3). Check whether there’s any water or other impurities in the fuel tank, and whether the filter screen at the fuel port is blocked up;
(4). Be sure to keep the fuse of the fuel system in good condition;
(5). Check whether the degree of vacuum of the air inlet pipe is within the standard set by the manufacturer.
2. Check of the electrical system
(1) Make sure that there shall be enough power in the storage battery, and the voltage of the storage battery can’t be below 12 V;
(2) Check the function of battery charging system;
(3) Check whether the wire or terminal post of the storage battery is loosened or eroded;
(4)Check whether the electrical components and circuits are properly connected, and whether there’s short circuit, open circuit or imperfect contact at the connection point;
(5)Check whether the fault indicating lamp of the engine functions properly.
3. Other checks
(1) Check whether the vacuum pipeline is loosened or disconnected;
(2) Check whether there’s any water leakage, gas leakage or oil leakage;
(3). Check whether the sound of engine is abnormal, and whether the noise from the fuel pump is too loud;
(4) Check the opening and closing time of the inlet/outlet valve, and adjust it.
