Maintenance
2722−2/A1
Winterthur Gas & Diesel Ltd.
1/ 7
Disassemble, Check, Assemble
Injection Valve
Tools:
1 Torque spanner 94011A
1 Wrench extension 94022D−55
1 Wrench extension 94022D−70
1 Injector test bench compl. 94272
1 Nozzle removal tool 94278A
1 Nozzle installation tool 94278B
1. General 1..........................................................
2. Preparation 2.......................................................
3. Procedure 2........................................................
3.1 Checks 2.....................................................
3.2 Results 3.....................................................
4. Disassemble 4.....................................................
4.1 Injection valve 4..............................................
5. Nozzle tip − replace 5...............................................
5.1 Removal 5....................................................
5.2 Installation 6.................................................
6. Assemble 7........................................................
6.1 Injection valve − assemble 7...................................
1. General
The test bench 94272 must be used for the tasks that follow:
D To do checks
D To disassemble
D To assemble
Use calibration fluid for tests. The properties of the calibration fluid (e.g. Shell
Calibration Fluid S.9365, Univar Calibration Fluid 1487) are as follows:
D The density at 15_C is 827 kg/m
3
(ISO 12185)
D The kinematic viscosity at 40_C is 2.6 mm
2
/s (ASTM D445)
D The pour point is −27_C (ISO 3016)
If calibration fluid is not available, you can use clean diesel oil (gas oil). If clean diesel
oil (gas oil) is used, install the injection valve immediately after you complete the
checks.
Note: It is not recommended that diesel oil (gas oil) is used if the injection valve
is put into storage after these checks. The injection valve can get
corrosion.
On some injection valves the quantity of leakage flow can be more than others. If the
test bench flow is not sufficient to open the needle, you can use a clean additive-type
crankcase (system) oil of SAE 30 viscosity. For more data see the Operation Manual
0750, paragraph 2 System oil).
2015
Injection Valve
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