Engine | 372 in model 682.118/128/191 |
Engine | 374 in model 688.101/102/103/111/118/121/123/133/143/156/157/158/159 |
Engine | 374 in model 688.156/174/176/177/187/270/272 |
Engine | 374 in model 693.023 |
Engine | 376 in model 382.004/005/010/020/022/033/058/068/069, 384.081/085/087/088/091/097/098 |
Engine | 376 in model 384.003/004/009/014/023/024/041/045/047/114/145, 386.004/014/015/024/025/027/041/043/045/314/354/364/367/369, 682.003/023/027/028/081/102/103/107/108/118/122/123/127/128/132/133/181/183/186/191/195/308/313/318 |
Engine | 377 in model 382.004/005/020/022/033/034/058/069, 384.072/073/081/087/088 |
Engine | 377 in model 693.108/127/128/144/182/184/191/195, 694.004/024/041/047, 695.013/014/015/016/039/043/056/301/302 |
Engine | 386 in model 684.200/201/262 |
1 | Nozzle holder |
2 | Adjustment washer |
3 | Spring |
4 | Thrust pin |
5 | Positioning ring |
6 | Injector needle |
7 | Injector nozzle |
8 | Assembly nut |
9 | Fastening device |
10 | Special wrench |
11 | Test device |
12 | Fastening device |
B07.10-0001-06
| Disassemble | ||
1 | Remove the injector holder (1) |
| |
2 | Secure the device (9) to a vise, place the injector holder (1) on the device and loosen the nut (8) | Mounting fixture | |
Open-end wrench socket | |||
Wrench socket | |||
3 | Disassemble the set based on the following sequence: (8), (7), (6), (5), (4), (3), (2) and (1) | Disassemble more than one set separately. Do not mix parts, especially needles (6) and nozzles (7). | |
Danger | Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contactwith fuel. | No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only. | |
4 | Clean the parts (1), (2), (3), (4), (5), (6), (7) and (8) | Use kerosene or diesel oil. Do not carry out the cleaning of injection nozzles employing mechanical processes, such as metal needles, steel brushes, sandpaper, etc. The adoption of such procedures will damage the injection nozzles. | |
5 | Clean the injector nozzle holes (2) with ultrasound | ||
The cleaning must be carried out when the injector nozzles conditions assessment is carried out or when they present deposits, which generally occurs due to the use of inadequate fuels (not filtered). | |||
| Assemble | ||
6 | Secure the device (12) in a vise; place the injector holder (1) on the device (9) and place it on device (12) | ||
| Shim (10°) for setting microswitch at injection pump | ||
Mounting fixture | |||
7 | Sequentially assemble parts (2), (3), (4), (5), (6), (7) and (8) onto the injector holder (1) | ||
8 | Press the injector (7) using the device handle (12) and manually thread the nut (8) until the stop | This procedure prevents the detachment of shavings, which, if lodged inside the injector, will cause malfunctions | |
9 | With the injector holder (1) on the device (9), tighten the nut (8) | .Injection nozzle to injector holder | |
Open-end wrench socket | |||
Wrench socket | |||
| Check | ||
Danger | Risk of explosion caused by fuel igniting. Risk of injury to skin and eyes caused by fuel spraying out at high pressure | Keep all ignition sources out of hazard area. | |
10 | Install the injector holder (1) on the test equipment (11) | Only injector testing oil or filtered diesel may be used to test the injectors (1). | |
Tester | |||
11 | Check the tightness of the injector | Close the test device valve (11) and perform a few injection cycles by operating the hand lever several times. Next, open the valve and slowly operate the lever until the manometer reads 20 bar below the opening pressure indicated for the injector. Keep the desired pressure for ten seconds checking whether the injector nozzle is correctly tight. | |
The leaking or up to 2 drops during ten seconds is admissible. | |||
If due tightness is not assessed after a thorough cleaning of the seating surfaces of the body and of the needle, the injector nozzle (7) and the needle (6) must be replaced. | |||
Nozzle opening pressure. | |||
| |||
On engine 377.987Injection pressure of nozzle | |||
Engine 372.9, 374.9, 376.9, 377.9, 386.9 except 377.987Injection pressure of nozzle | |||
12 | Check the injector nozzle opening pressure | Open the device valve (11). Actuate slowly the lever and check the pressure indicated in the manometer, at the moment in which the injector nozzle opens. If the pressure differs from the prescribed values, it must be corrected by replacing the adjustment washers (2). | |
Do not use more than two pressure adjustment washers (2) on each injector. The need for more than two washers or washers greater than 3 mm indicates that the spring (3) is weak and must be replaced. | |||
The injector nozzle must not be re-manufactured. Nozzles beyond specifications must be replaced. | |||
Engine 372.9, 374.9, 376.9, 377.9, 386.9 except 377.987Shim thickness to adjust the opening pressure | |||
Engine 372.9, 374.9, 376.9, 377.9, 386.9 except 377.987Injection pressure of nozzle | |||
On engine 377.987Shim thickness to adjust the opening pressure | |||
On engine 377.987Injection pressure of nozzle | |||
13 | Install the injector holder (9) |
|
Injection nozzles |
Number | Designation | Engine 372.961; 374.905/950/980, 374.984; 376.951/952/956, 376.930/984; 377.943/945/962; 377.964/980/981, 377.983/985; 386.951 | ||
BE07.03-B-1003-01C | Shim thickness to adjust the opening pressure | P type nozzle, 0.02 increments | mm | 1,00...1,98 |
S type nozzle, 0.05 increments | mm | 1,00...1,95 |
Injection nozzles |
Number | Designation | Engine 372.961; 374.905/950/980, 374.984; 376.951/952/956, 376.930/984; 377.943/945/962; 377.964/980/981, 377.983/985; 386.951 | ||
BE07.03-B-1004-01C | Injection pressure of nozzle | Normal, with engraving 791/92, 926, 1013/96, 1103/57, 1264/66, 6882/94 | bar | 200...208 |
Minimum,, with engraving 791/92, 926, 1013/96, 1103/57, 1264/66, 6882/94 | bar | 180 | ||
Normal, with engraving 422/30 L066B | bar | 260...270 | ||
Minimum, with engraving 422/30, L066BPA | bar | 235 | ||
Normal, with engraving 1286 | bar | 230 ... 238 | ||
Minimum, with engraving 1286 | bar | 205 | ||
Normal, with engraving 371/72 | bar | 250...258 | ||
Minimum, with engraving 371/72 | bar | 225 | ||
Normal, with engraving 296, 301 | bar | 280...288 | ||
Minimum, with engraving 296, 301 | bar | 250 | ||
Normal, with engraving 1314 | bar | 330...340 | ||
Minimum, with engraving 1314 | bar | 300 | ||
Normal, with engraving 1560 | bar | 300...310 | ||
Minimum, with engraving 1560 | bar | 270 |
403 589 00 13 00
Wrench socket
000 589 14 27 00
Tester
000 589 01 13 00
Open-end wrench socket
403 589 00 31 00
Mounting fixture