Technical data

DBW 2010 / 2012 / 2020 / 2022 / 300 / 350 9.The Repair

907

9.1.2.2 The installation of the pre-heating of the

nozzle block at the devices DBW 2010 / 2012 / 2020 /

300 / 350 equipped with the control device 1563/64

General

The fuel going to the vaporizer nozzle will be heated with

the pre-heating of the nozzle block. Defects can occur at

excessively low temperatures at the heating devices

mentioned above if there is no pre-heating of the nozzle

block.

The heating cartridge in the nozzle block will be activated

over the thermostat when the temperature is < 0

C. The

period of heating depends on the reflecting radiation heat

in the combustion chamber and the thermostat will be

shut off when the temperature is +8

In the case that there is no pre-heating of the nozzle

block, it can be mounted subsequently as described

below.

The following spare part sets are available to equip the

heating devices mentioned above:

• 12 V heating devices equipped with the control device

1563/1563, order number 968 91A.

• 24 V heating device equipped with the control device

1563/1563, order number 968 90A.

The spare part set consists of the following parts:

1 Heating cartridge

1 Attachment wire

1 Relay

1 Relay with free work diode

1 Thermostat

1 Cable bunch

1 Catch

1 Disc

1 Nut

1 Knurled washer

1 Socket bushing, with 3 pins

1 Socket bushing, with 2 pins

7 Flat socket bushings

1 Relay platform

Thermostat

Heating cartridge

Nozzle block

Heating cartridge

Nozzle block