ar0715b8950tj

Remove MR/PLD unit pump, install

ประเภท ar · หัวข้อ 07.15 · เวอร์ชัน 0108 · 2019-11-08

ใช้กับ: Engine 924.9, 926.9 in model 958.0/1 Engine 926.9 in model 958.2

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ตำแหน่ง

กลุ่มฟังก์ชัน 1 Engine › 07 Mixture formation › 07.15 Diesel injection system (PLN), Engine control (MR) — ซีรีส์ 958 (รุ่น 0**, 1**, 2**)

EinPAS 15 Engine › 15.45 Engine management › 15.45.51 Injection pump/injection timer — ซีรีส์ 958 (รุ่น 0**, 1**, 2**)

ใช้กับเครื่องยนต์/เกียร์ด้วย: 924 9**, 926 9**

AR07.15-B-8950TJ

Remove MR/PLD unit pump, install

14.10.2019

Engine

924.9, 926.9 in model 958.0/1

Engine

926.9 in model 958.2

Remove MR/PLD unit pump, install

Represented in Engine 926.9

1

Engine coating

2

Holder (only for code (GS3) "Hydraulic" clutch)

3

Holder (only for code (GS3) "Hydraulic" clutch)

W07.15-1445-06

Remove MR/PLD unit pump, install

W07.15-1446-08

4

Injection pipe

8

Impact puller

Y9

Unit pump 4th cylinder

5

Electric harness of the engine

Y6

Single pump cylinder 1

Y10

Single pump 5th cylinder

6

Bolts

Y7

Unit pump 2nd cylinder

Y11

Single pump 6th cylinder

7

Roller tappet

Y8

Unit pump 3rd cylinder

Remove

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.
Wear protective clothing when handling fuel.

AS47.00-Z-0001-01A

1

Turn off ignition

Topical note

Notes on tilting the cab

AH60.80-N-0003-01A

Warning

Risk of injury caused by body parts being pinched or crushed as cab is tilted

Ensure that no one is within the tilting range of the cab as it is being tilted. Always tilt the cab all the way to the end position and secure it with the safety strut.

AS60.80-Z-0001-01A

2

Tilt the cabin

3

Remove the upper left chassis acoustic encapsulation

4

Remove the engine coating (1)

5

Clean the engine block in the area of the corresponding injecting unit

6

Remove injecting pipe (4) from the corresponding injecting unit


.

AR07.15-B-9235TJ

7

Identify the injecting unit in relation to each cylinder

Only when removing several injecting units.

8

Remove holder of gear lever in the head

Only in vehicles with code (GS1) "mechanical" gear command and for removal of the injecting unit from 1st cylinder (Y6).

9

Remove holder (2) of the hydraulic pipe and holder (3)

Only in vehicles with code (GS3) "hydraulic" gear command and for removal of the injection unit from 1st cylinder (Y6).

Do not separate hydraulic pipes.

10

Remove fixing ruler for the electric harness of the engine (5) with Start Engine and Stop Engine buttons in the engine block

Only necessary if, in the engine 924.9, the injection unit of cylinder 2 (Y7) or the injection unit of cylinder 3 (Y8) is removed i.e. in engine 926.9, the injection unit of cylinder 4 (Y9) or the injection unit of cylinder 5 (Y10) is removed.

11

Separate the electric harness of the engine (5) in the corresponding injecting unit

12

Loosen the screws (6) of the corresponding injection unit and unscrew approx. 4 to 5 mm

The injecting unit is under tension force and may be thrown out if hit when screws are being loosened (6) from the engine block and, therefore, it may be damaged.

13

Install impact drawer (8) in the respective injecting unit

Impact extractor

*355589016300

14

Remove the respective injecting unit with the impact drawer (8) up to the top of the screws (6)

A stuck injection unit cannot be removed from the electromagnet valve or from housing flange, because it may damage the electromagnet valve.

15

Remove impact drawer (8)

16

Remove screws (6) and its respective injecting units

17

Check the roller tappet (7) in the respective injective unit

Check the surface of the roller tappet (7); in case of minor grooves and scratches, the injecting unit may be used. In grooves, scratches or deep sanded spots:

Replace the respective injecting unit; furthermore, check visually the rebound of the injecting unit in the camshaft.

Install

18

Clear carefully any impurity and paint residues on the sealing surface of the engine block

Close the drilling in the engine block.

19

Install new O-rings in the injecting unit with grease

Only when reinstalling previously run injecting units.

AR07.15-B-8950-01TJ

Apply grease softly on the body of the injecting unit and in the drilling in the engine block

High-temperature grease

*BR00.45-Z-1051-06A

Sleeve

*904589031400

20

Install the injecting unit in the engine block and screw evenly

Do not damage the O-rings in the body of the injecting unit.
Press carefully with the hand against the elastic force, fixing the screws (6) by doing that.

Engine block injection unit

*BA07.15-B-1001-01A

21

Install the fixing ruler for the electric harness of the engine (5) with Start Engine and Stop Engine buttons in the engine block

Only necessary if, in the engine 924.9, the injection unit of cylinder 2 (Y7) or the injection unit of cylinder 3 (Y8) is installed i.e. in engine 926.9, the injection unit of cylinder 4 (Y9) or the injection unit of cylinder 5 (Y10) is installed.

22

Connect the electric harness of the engine (5) in the corresponding injecting unit

23

Install holder of gear lever in the head

Only in vehicles with code (GS1) "mechanical" gear command and for removal of the injection unit from 1st cylinder (Y6).

24

Install holder (2) of the hydraulic pipe and holder (3)

Only in vehicles with code (GS3) "hydraulic" gear command and for removal of the injection unit from 1st cylinder (Y6).

25

Install injecting pipe (4) from the corresponding injecting unit

AR07.15-B-9235TJ

Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

26

Execute test run to check the engine, turn it off and search the area of the injecting unit for any leakages

Actuate the starter for no more than 90 seconds. The fuel system bleeds automatically. Should the engine not stop or not start, repeat the start procedure after waiting 2 minutes.

27

Connect Star Diagnosis and reprogram the bar code of the injecting unit

Only in case of installation of new injecting units.

28

Install the engine coating (1)

29

Install acoustic insulation on the left upper frame

Warning

Risk of injury caused by body parts being pinched or crushed as cab is tilted

Ensure that no one is within the tilting range of the cab as it is being tilted. Always tilt the cab all the way to the end position and secure it with the safety strut.

AS60.80-Z-0001-01A

30

Return the cab to its position

Topical note

Notes on tilting the cab

AH60.80-N-0003-01A

Diesel injection system with injection unit (MR/PLD)

Number

Designation

Engine 904.9, 906.9, 924.9, 926.9

BA07.15-B-1001-01A

Engine block injection unit

Nm

65

Remove MR/PLD unit pump, install
Remove MR/PLD unit pump, install

904 589 03 14 00

Sleeve

355 589 01 63 00

Impact extractor

Repair materials

Number

Designation

Order number

BR00.45-Z-1051-06A

High-temperature grease

A 000 989 81 51

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