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8 | Repairing and replacing components
8.14
Removing nozzle block preheater
Fig. 41 Fuel pump with nozzle block preheater
C
Fig. 42 Removing clip and heater cartridge
A
Fuel pump
B
Heater cartridge
Follow these steps:
1.
Remove control unit. See chapter 8.6, "Removing control
unit" on page 30.
2.
Remove ignition spark generator with ignition electrodes.
See chapter 8.11, "Removing ignition spark generator" on
page 33.
3.
Unclip clip (C).
4.
Pull heater cartridge (B) downwards out of fuel pump.
34 / 49
A
B
C
Clip
8.15
Removing blower fan wheel
A
B
Fig. 43 Overview
A
Screws
B
Cover for combustion air fan D
Fig. 44 Circlip
Follow these steps:
1.
Remove 3x screws (A) Torx 40x14 T20.
2.
Remove cover for combustion air fan (B).
3.
Remove circlip (D) DIN471 6x0.7 from drive motor axle. See
Note.
Use suitable circlip pliers.
4.
Remove blower fan wheel.
5.
Pull out blower fan wheel.
NOTE
Do not reuse the circlip.
9039412C Workshop manual TTP 120 _ 150
C
D
C
Blower fan wheel
Circlip
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