AR07.03-G-6831B | Remove/install nozzle holder combination | 9.1.12 |
ENGINES 900.915 /916 /920 /921, 902.923 /924 /935, 904.927 /928 /952 /953, 906.935 /955, 924.916 /923 /931, 926.969
G07.03-3103-09
1 Nozzle holder combination
2 Threaded insert
3 Impact extractor
4 Screw/bolt
5 Retaining clip
11 Pressure screw
12 Injection line
13 Cap (the constant throttle)
6 O-ring
7 Sealing ring
8 Thermal protection sleeve
9 O-ring
10 Pressure pipe connection
G07.03-3104-01
Shown: nozzle holder assembly for engine 902, 906, 924, 926
1 Nozzle holder combination
8 Thermal protection sleeve
20.1 Assembly tool (nozzle holder mount)
20.2 Assembly tool (sealing sleeve mount)
| Removing | ||
Danger! | Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel and risk of injury to eyes and skin caused by contact with fuel | No fire, sparks, open flames or smoking. Wear protective clothing when handling fuel. | |
1 | Remove cylinder head cover | ||
2 | Remove injection line (12) | ||
3 | Remove pressure bolt (11) and remove pressure pipe connections (10) | ||
4 | Remove retaining clip (5) | ||
5 | Attach threaded insert (2) and impact extractor (3) to inside thread of nozzle holder combination (1) | Impact extractor | |
Threaded insert | |||
6 | Pull out nozzle holder combination (1) | Nozzle holder combination (1) must not be disassembled. If there is wear or another problem, replace nozzle holder combination (1). | |
7 | Remove threaded insert (2) and impact extractor (3) at the nozzle holder combination (1) | ||
8.1 | Take off seal (7) | Engine with seal ring (7) | |
8.2 | Pull off heat protection sleeve (8) from nozzle holder combination (1) | Engine with heat protection sleeve (8) | |
If heat protection sleeve (8) is stuck, it must be pulled out from the cylinder head. | |||
Impact extractor | |||
Threaded insert | |||
Extractor tool | |||
| Install | ||
9 | Insert new O-ring (6) at nozzle holder combination (1) | Coat O-ring (6) with high-temperature grease. | |
10.1 | Place new seal (7) on nozzle holder combination (1) | Engine with seal ring (7) | |
Observe installation position of seal ring (7). The small ring surface on sealing ring (7) faces towards the nozzle holder combination (1). | |||
10.2 | Press new heat protection sleeve (8) onto nozzle holder combination (1) | Engine with heat protection sleeve (8) | |
Assembly tool | |||
Before pressing on the new heat protection sleeve (8), clean the contact surface at the nozzle holder combination (1) to remove combustion residues: | |||
Clean nozzle holder combination | |||
11 | Install nozzle holder combinations (1) | Note installation position of nozzle holder combination (1) relative to pressure pipe connection (10). Twist the nozzle holder combination (1) into the cylinder head using clamp (5) until the ball pressed into the clamp (5) is positioned at the fixing in cap (13) of the constant throttle. | |
12 | Tighten down clamp (5) fully using the screw (4) | | |
13 | Replace new O-ring (9) at the pressure pipe connection (10) | Coat O-ring (9) with high-temperature grease. | |
14 | Install pressure pipe connection (10) and tighten down pressure screw (11) | Up to engine end no. 319372, the ball pressed into pressure pipe connection (10) must be inserted in the groove in the cylinder head. | |
| |||
| Modified open end wrench for pressure screw from pressure pipe connection | ||
15 | Install injection line (12) | ||
16 | Install cylinder head cover |
Diesel injection system with unit pumps (MR/PLD)
Number | Designation | Engine | ||
BA07.15-N-1003-01E | Screw/bolt, clamp for nozzle holder combination to cylinder head | Hexagon socket | Nm | 30 |
Twelve-point with radius seat | Nm | 35 | ||
BA07.15-N-1005-01E | Thrust screw/bolt, pressure pipe connection to cylinder head | Nm | 45 | |
904 589 00 63 00
Extraction tool
Threaded insert
Impact extractor
Assembly tool
355 589 01 63 00
906 589 02 63 00
906 589 03 63 00
Repair materials
Number | Designation | Order number |
BR00.45-Z-1051-06A | High-temperature grease | A 000 989 81 51 |