Webasto DBW 2010 Service And Repair Manual

www.webasto.us 57 Webasto Product N.A., Inc.
DBW 2010/2020/300 COOLANT HEATERS REPAIR
9.2.13 COMBUSTION AIR FAN, REPLACEMENT
NOTE: For replacement of the combustion air
fan the burner may be left installed.
In removed condition ensure that igniter
electrodes are not bent and nozzle is not
damaged.
9.2.13.1 REMOVAL
1. Swing open or remove burner head (see Sec. 9.2.5)
2. Move ignition coil out of the way. Refer to Sec.
9.2.11 for guidance.
3. Remove four screws (item 6, Fig. 45) and withdraw
protection cap (1) from burner.
4. Disconnect motor leads.
5. Remove drive motor (see Sec. 9.2.12).
6. Remove four Allen Socket screws (item 1, Fig. 46 )
and washers (2) from motor carrier (3).
7. Remove four screws (10) from nozzle holder plate
(9) and pull plate free.
DBW 2010 O
NLY:
8. Remove lock-nut (8), drive gear (7) and washer (6).
9. With a hammer and small drift, tap fan shaft and
fan (4) free from housing (5)
10. Perform further disassembly of shaft, bearings and
gears if necessary (see Sec. 9.2.15).
DBW 2020/300 O
NLY
11. Grasp motor carrier (item 3, Fig. 46 ) and with a
slight rocking motion, work the motor carrier and
fan (with bearing), free from housing (5).
12. Perform further disassembly of shaft, bearings and
gears if necessary (see Sec. 9.2.16).
9.2.13.2 INSTALLATION
DBW 2010 ONLY:
1. Assemble bearings and components if required (see
Sec. 9.2.15).
2. Push fan with shaft through bearings and spacer of
housing (item 5, Fig. 46)
3. Install washer (6), drive gear (7) and lock-nut (8).
4. Adjust fan clearance according to instructions in
Sec. 9.1.1.4.
DBW 2020/300 O
NLY
5. Assemble fan, shaft, bearings and drive gear
components if required (see Sec. 9.2.16).
6. Make sure O-ring (item 10, Fig. 48) in bearing recess
of housing (item 5, Fig. 46) is present and in place.
7. Push fan assembly into housing (5) until motor
carrier (3) is fully seated.
DBW 2010/2020/300
8. Install motor carrier (item 3, Fig. 46 ) over fan (4).
9. Install and tighten screws to
– DBW 2010 - 5.5 - 6.5 Nm (48.5 - 57.5 lb-in).
– DBW 2020/300 - 8.0 Nm ± 10% (71 lb-in ± 10%).
10. Install drive motor (see Sec. 9.2.12).
11. Connect electrical leads.
12. Install protection cap and secure with four screws
(item 6, Fig. 45) removed earlier.
13. Install ignition coil. Refer to Sec. 9.2.11 for
guidance.

Webasto DBW 2010 Specifications

General

Brand	Webasto
Model	DBW 2010
Category	Water Heater
Language	English