Webasto DBW 46 Repair Manual download pdf (Page 51)

www.webasto.us 51 Webasto Thermo & Comfort N.A., Inc.

DBW 2010/2020/300 COOLANT HEATERS REPAIR

9.2.3 TEMPERATURE LIMITER, REPLACEMENT

9.2.3.1 REMOVAL

1. Disconnect electrical connection to temperature

limiter at connector block.

2. Turn counterclockwise to remove temperature

limiter (item 3, Fig. 36).

9.2.3.2 INSTALLATION

1. Turn temperature limiter clockwise into bracket until

snug.

2. Plug connector into connector block.

NOTE: Observe electrical wiring color coding

when making connections.

Figure 36: Temperature Control Elements

9.2.4 CONTROL UNIT, REPLACEMENT

9.2.4.1 REMOVAL

1. Disconnect all electrical connections from control

unit.

2. Carefully withdraw control unit from holding clip or

slide out with holding clip (Fig. 37).

9.2.4.2 INSTALLATION

1. Carefully push control unit (into holding clip or slide

into position with clip attached (Fig. 37).

2. Restore electrical connections.

9.2.5 BURNER, REPLACEMENT

9.2.5.1 REMOVAL

1. Disconnect electrical connections on burner and

loosen fuel lines.

2. Loosen two nuts (item 3, Fig. 38) until hinge bolts

are free.

3. Swing hinge bolts (2) open and remove cotter pin

(1).

4. Remove burner (4).

9.2.5.2 INSTALLATION

1. Position burner (4, Fig. 38) for installation, swing

hinge bolts (2) closed and secure temporarily using

hinge bolts (2).

2. Insert cotter pin (1) according to the intended

opening swing direction.

3. Tighten nuts:

DBW 2010 = 5 - 6 Nm (44 - 53 lb-in.).

DBW 2020/300 = 7.5 - 8.5 Nm (66 - 75 lb-in.).

4. Connect fuel lines.

5. Restore electrical connections.

1 Overheat Fuse

2 Temperature Control Thermostat

3 Temperature Limiter

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Webasto DBW 46 Repair Manual Page 51

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