RT 137A2 Issue2

Engine section Engine type Ref. Date Issue Document no. Page

RT-flex engines DMTS 2S 05.07.2014 2 RT-137_A2 1(7) W-X82 engine Appendix 2

Wrtsil Switzerland Ltd. PO Box 414 Tel (24h): +41 52 262 80 10Services CH-8401 Winterthur Technical Service, 2-stroke engines Switzerland [email protected]

Wrtsil 2-stroke, Technical Services

GENERAL INFORMATION

Contents Page 1 Onboard repair kit: Injection Control Unit (ICU) 11.1 ICU onboard repair kits for size 0, 1, 2 and 4 rail units 11.2 ICU onboard repair kits for size 3 rail units 42 Order numbers for ICU onboard repair kits 62.1 ICU order numbers for size 0, 1, 2 and 4 rail units 62.2 ICU order numbers for size 3 rail units 73 Terms and glossary 7

NOTE 1: This Appendix 2 is part of the General Information bulletin RT-137, entitled Maintenance concepts for RT-flex components.

NOTE 2: For each RT-flex component a separate Appendix is introduced, Appendix 2 is related to ICUs. Therefore the former general Appendix 1, General Information RT-137_A1, dated 26.09.2012 is superseded.

1 Onboard repair kit: Injection Control Unit (ICU)

1.1 ICU onboard repair kits for size 0, 1, 2 and 4 rail units

Table 1: ICU onboard repair kits *) for size 0, 1, 2 and 4 rail units

Kit name Included parts **) Description

Injection Control Valve (ICV) kit

Injection control valve In extreme cases of high catalyst fines or asphaltene content of the fuel oil, damage, malfunctioning or sticking of the ICV may

occur. This ICV kit is available to restore the ICU to normal operation.

Spring carrier Compression springs

Lip-seal

Injection control piston kit

Injection control piston In extreme cases of fuel out of specification, the injection control piston has been known to stick. To return the ICU to normal operation,

an injection control piston kit is available.

O-rings

Lip-seal

Fuel quantity sensor kit Fuel quantity sensor

For replacement of the fuel quantity sensor in case of damage. See bulletin RT-130.

*) The Rail valve kit mentioned in Appendix 1, Issue 1 dated 26.09.2012 is not used anymore

as rail valves can be ordered individually anyway. **) The replacing parts for each kit are shown in Figure 2 to Figure 4.

GENERAL INFORMATION

RT-137_A2, Issue 2, Page 2 / 7

Appendix 2

1. Injection Control Valve (ICV) kit 2. Injection control piston kit 3. Fuel quantity sensor kit

Figure 1: ICU showing location of onboard repair kits for size 0, 1, 2 and 4 rail units

4. Injection control valve 5. Spring carrier

6. Compression spring

Figure 2: Replacing parts of Injection Control Valve (ICV) kit

6

3

2

1

4

5

GENERAL INFORMATION


Appendix 2

7. Injection control piston 8. Lip seal

9. O-ring

Figure 3: Replacing parts of injection control piston kit

10. Fuel quantity sensor 11. O-ring Figure 4: Replacing parts of fuel quantity sensor kit

11

10

8

7

9

9

GENERAL INFORMATION


Appendix 2

1.2 ICU onboard repair kits for size 3 rail units

Table 2: ICU onboard repair kits for size 3 rail units

Kit name Included parts *) Description

Fuel valve block assembly kit

Fuel valve block In extreme cases of high catalyst fines or asphaltene content of the fuel oil, damage, malfunctioning or sticking of the fuel valve

block may occur. This kit is available to restore the ICU to normal operation.

O-Ring

Lip-seal

Servo oil valve unit kit

Servo oil valve unit In case there is a damage or leakage of the

servo oil valve unit, it is possible to exchange the servo oil valve unit.

Throttle screw O-Ring Lip-seal

Fuel quantity sensor kit Fuel quantity sensor

For replacement of the fuel quantity sensor in case of damage.

Fuel quantity piston kit

Fuel quantity piston In extreme cases of fuel out of specification, the fuel quantity piston might stick. To return

the ICU to normal operation, an injection control piston kit is available.

Flange with piston rod

Lip-seal

*) The replacing parts for each kit are shown in Figure 5 to Figure 7.

1. Fuel valve block assembly kit 2. Servo oil valve unit kit

3. Fuel quantity sensor kit 4. Fuel quantity piston kit

Figure 5: ICU showing location of onboard repair kits for size 3 rail units

3

1

4

2

GENERAL INFORMATION


Appendix 2

1. Fuel valve block assembly 2. Servo oil valve unit Figure 6: Replacing parts of fuel valve block kit and servo oil valve unit kit

3. Fuel quantity sensor 4. Fuel quantity piston Figure 7: Replacing parts of fuel quantity sensor kit and fuel quantity piston kit

NOTE: No special tools are needed to carry out the replacement of ICU parts. The replacement can be made with the onboard standard tools.

1

2

3 4

GENERAL INFORMATION


Appendix 2

2 Order numbers for ICU onboard repair kits

2.1 ICU order numbers for size 0, 1, 2 and 4 rail units

Table 3: Order numbers for size 4 ICU onboard repair kits and spare parts

Engine type Injection Control Valve (ICV) kit Injection control

piston kit Fuel quantity

sensor kit RT-flex96C-B DF 55657 DF 55658 DF 55762 RT-flex84T-D BF 55657 BF 55658 BF 55762 Order numbers for additional spare parts to size 4 ICU that are available individually

Engine type Rail valve Lip seal to rail Lip seal to FQP

O-ring for FQP flange

Control oil filter

RT-flex96C-B DF 55754 DF 55758 DF 55756 DF 55753 DF 55768 RT-flex84T-D BF 55754 BF 55758 BF 55752 BF 55753 BF 55768




sensor kit RT-flex68-B RT-flex68-D MF 55602 MF 55603 MF 55762

Order numbers for additional spare parts to size 2 ICU that are available individually



Control oil filter

RT-flex68-B RT-flex68-D MF 55754 MF 55758 MF 55752 MF 55753 MF 55768




sensor kit RT-flex60C *) RT-flex60C-B NF 55602 NF 55603 NF 55762

RT-flex58T-B *) RT-flex58T-D RT-flex58T-D_V1

OF 55602 OF 55603 OF 55762

RT-flex58T-D_V2 GF 55602 GF 55603 GF 55762 Order numbers for additional spare parts to size 1 ICU that are available individually



Control oil filter

RT-flex60C *) RT-flex60C-B NF 55754 NF 55761 NF 55752 NF 55753 NF 55768

RT-flex58T-B *) RT-flex58T-D RT-flex58T-D_V1

OF 55754 OF 55761 OF 55767 OF 55753 OF 55768

RT-flex58T-D_V2 GF 55754 GF 55761 GF 55752 GF 55753 GF 55768

*) No repair kits are available for RT-flex60C and RT-flex58T-B engines which have a previous execution of injection control valve. The easiest means of identification of these engine types is by the presence of control oil pumps located in the rail unit free end side.

GENERAL INFORMATION


Appendix 2




sensor kit RT-flex50 RT-flex50-B RT-flex50-D

IF 55655 IF 55656 IF 55762

RT-flex48T-D EF 55655 EF 55656 EF 55762 Order numbers for additional spare parts to size 0 ICU that are available individually



Control oil filter

RT-flex50 RT-flex50-B RT-flex50-D

IF 55754 IF 55763 IF 55752 IF 55753 IF 55768

RT-flex48T-D EF 55754 EF 55763 EF 55752 EF 55753 EF 55768

2.2 ICU order numbers for size 3 rail units

Table 7: Order numbers for size 3 ICU onboard repair kits

Engine type Fuel valve

block assembly kit

Servo oil valve unit kit

Fuel quantity sensor kit

Fuel quantitypiston kit

RT-flex68D_V1 PF 55415 PF 55416 PF 55762 PF 55414 RT-flex82C Tier I LF 55411 LF 55412 LF 55762 LF 55410 RT-flex82C Tier II LF 55415 LF 55416 LF 55762 LF 55414 RT-flex82T VF55415 VF 55416 VF 55762 VF 55414 W-X82 CX 55415 CX 55416 CX 55762 CX 55414 Order numbers for additional spare parts to size 3 ICU that are available individually



RT-flex68D_V1 PF 55754 PF 55763 PF 55761 PF 55760 RT-flex82C Tier I LF 55754 LF 55763 LF 55761 LF 55760 RT-flex82C Tier II LF 55754 LF 55763 LF 55761 LF 55760 RT-flex82T VF 55754 VF 55763 VF 55761 VF 55760 W-X82 CX 55754 CX 55763 CX 55761 CX 55760

3 Terms and glossary

Table 8

Abbreviation Name / Part FOP Fuel Oil Pump FQP Fuel Quantity Piston ICU Injection Control Unit ICV Injection Control Valve Size 0, 1, 2, 3 or 4 Describes the size of the rail unit of RT-flex engines

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RT 137A2 Issue2