AIC TEXAS 230, Руководство по установке и обслуживанию

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I-74
H-093630_EN • 00
M
aintenance
Removing and Installing the Burner Plate
Conditions:
î
Fan assembly / gas valve removed, refer to “Re-
moving and Installing the Fan, Venturi and Gas
Valve (TEXAS 99)” on page I-68. or “Remov-
ing and Installing the Fan, Venturi and Gas
Valve Assembly (TEXAS 230)” on page I-70.
î
Electrodes removed, refer to “Removing and
Installing the Ignition and Ionisation Elec-
trodes” on page I-66
î
Burner removed, refer to “Removing and In-
stalling the Burner” on page I-72
Tools and material:
î
Wrench, socket head size 13
î
Torque wrench, 1,5 to 10 Nm
î
Loctite thread sealant 5972
Removal Procedure:
1. Release six nuts (
1
). Retain for reinstallation.
2. Remove burner plate (
2
) and insulation (
3
).
3. Check the condition of burner plate insula-
tion (
3
). Replace if:
î
the insulation (
3
) is cracked and dam-
aged, or
î
the burner plate (
2
) shows discolouration
or burns,
4. Remove it as required by releasing three nuts
and washers (
4
). Retain hardware for reinstal-
lation.
5. Discard the damaged insulation.
To discard the damaged insulation, place in
the transport bag from the new insulation,
then throw away with normal waste. This will
prevent any dust present to contaminate the
area.
OFF
i
Installation procedure:
1. If required, install new insulation (
3
) on burner
plate (4):
î
Coat burner plate studs with Loctite 5972
î
Install three nuts and washers (
4
) and
torque at 1,5 Nm.
2. Install burner plate (
2
) on heat exchanger
studs.
3. Apply Loctite 5972 on studs and install six
nuts (
1
).
4. Torque nuts in a crosswise pattern at 5 Nm,
then repeat in a crosswise pattern at 10 Nm.
Follow-on tasks:
1. Clean the combustion chamber, as required.
Refer to “Checking and Cleaning the Com-
bustion Chamber” on page I-76.
2. Reinstall the burner, refer to “Removing and
Installing the Burner” on page I-72.