Webasto Thermo Pro 90, Установка оборудования

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Thermo Pro 90
8 Repairing and replacing components
806
8.12 Heat exchanger
Removal
1. Remove heater (see section 7.5).
2. Remove coolant pump (see section 8.6).
3. Remove overheating protection (see section 8.7).
4. Remove coolant temperature sensor (see section 8.8).
5. Remove burner head and combustion air fan (see section
8.11).
6. Complete work on stripped down components (see sec-
tion 8.3), check for damage (cracks, deformation etc.)
and replace if necessary.
Clean soot from inner jacket of heat exchanger.
Installation
1. Install burner head and combustion air fan (see section
8.11).
2. Install coolant temperature sensor (see section 8.8).
3. Install overheating protection (see section 8.7).
4. Install coolant pump (see section 8.6).
5. Install heater (see section 7.5).
8.13 Exhaust gas temperature sensor
Removal
1. Unplug electrical connections (see section 8.4).
2. Lever cable clip from rib on burner head (make a sketch
of the position of the clip if necessary).
3. Release screw connection of holder and pull out exhaust
gas temperature sensor.
Installation
1. Fit exhaust gas temperature sensor in burner head.
2. Secure the exhaust gas temperature sensor to the burner
head with the holder and screw. Tighten the holder
screw to
2.5 Nm ±10%.
3. Press down the clip to secure the exhaust gas tempera-
ture sensor cable to the rib on the burner head. Make
sure that the cable is fitted free of stress between the
exhaust gas temperature sensor and clip.
NOTE
If the exhaust gas temperature sensor suffers external
mechanical damage, this component can be replaced with-
out the need for additional work.
Additional work will, however, be necessary if an obvious
thermal defect is incurred or no mechanical defect is found
despite an error message. This means it is necessary to visu-
ally inspect the burner unit, exhaust pipes, the combustion
chamber as well as the heat exchanger fins (inner surface).
Check for abnormal quantities of soot, fuel residue as well as
coking. If this is the case, clean all affected parts. The burner
unit should be additionally checked by a specialist technician
for thermal damage and replaced if necessary.
Fig. 812 Heat exchanger
Fig. 813 Exhaust gas temperature sensor with clip