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Maintenance
2722
−
1/A1
RT-flex58T-D
Winterthur Gas & Diesel Ltd.
Tools:
Key to Illustrations:
1 Protection cap
94271
1 Injection valve
14 Nozzle body
1 OBEL test bench
94272
2 Allen screw
15 Retaining sleeve
1 Connecting piece
94272b
3 Spring plate
16 Snap ring
4 Cup spring packet
17 Dowel pin
5 Nozzle holder
18 Dowel pin
6 Collar nut
19 Cylinder cover
7 Spring tensioner
20 Support
8 Nozzle tip
21 HP hose
9 O-ring
22 Receiver
10 Tappet
23 Dowel pin
11 Retaining nut
24 Spring cage
12 Compression spring
13 Nozzle needle
LF Leakage fuel
Overview
1.
General
1/8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.
Checking an injection valve
2/8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.
Judging an injection valve
3/8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.
Dismantling an injection valve
4/8
. . . . . . . . . . . . . . . . . . . . . . . . . .
5.
Assembling an injection valve
4/8
. . . . . . . . . . . . . . . . . . . . . . . . . .
6.
Adjusting the opening pressure
6/8
. . . . . . . . . . . . . . . . . . . . . . . . .
7.
Replacing a nozzle tip
6/8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.
Arrangement of cup spring packet
7/8
. . . . . . . . . . . . . . . . . . . . . .
9.
Fitting an injection valve in cylinder cover
7/8
. . . . . . . . . . . . . . .
10.
Protecting a nozzle tip
8/8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.
Storage and handling of injection valve
8/8
. . . . . . . . . . . . . . . . . .
1.
General
For checking, dismantling, assembling and adjusting the injection valve, test
bench 94272 as well as test & calibration fluid has to be used (e.g. Shell Calibration
Fluid S.9365) complying with the data according to the following table:
Physical characteristics for test & calibration fluid:
Kinematic Viscosity
ASTM D445
at 40
_
C
mm
2
/s
2.6
Density at 15
_
C
kg/m
3
ISO 12185
827
Pour Point
_
C
ISO 3016
−
27
Remark:
Clean diesel oil (gas oil) can be used if no calibration fluid is available.
The use however is not recommended, if the injection valve will be stored and not
directly installed on the engine (corrosion reasons).
On some injection valves the leakage flow amount might be bigger than on others.
In case of the test bench flow is not sufficient to open the nozzle needle, a clean
additive-type crankcase (system) oil of the SAE 30 viscosity grade (for additional
data see 0750
−
1 ’System oil’ in the Operating Manual) can be used for testing
instead of the above mentioned fluids.
Injection Valve
Checking, Dismantling, Assembling and Adjusting
2013-08
Summary of Contents for WARTSILA RT-flex58T-D
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