ar8370s5758a

Removing and installing spark plug

Type ar · topic 83.70 · version 0107 · 2010-09-15

Applies to: MODEL 638.0 /1 /2 up to 15.11.97 with CODE (H12) Hot water auxiliary heater

Where it sits

Function group 3 Body › 83 Climate control › 83.70 Auxiliary/supplementary heater — Series 638 (models 0**, 1**, 2**)

EinPAS 39 Heating/ventilation/cooling › 39.25 Stationary heater/auxiliary heater › 39.25.30 Heater — Series 638 (models 0**, 1**, 2**)

AR83.70-S-5758A

Removing and installing spark plug

7.9.10

MODEL 638.0 /1 /2 up to 15.11.97 with CODE (H12) Hot water auxiliary heater

Removing and installing spark plug

S83.70-2003-09

1 Nut

2 Protective cap

R18 Spark plug

R18.1 Electrical connection for spark plug

Removal, installation

1

Disconnect the ground cable from the battery

Installation: Code radio and set clock

See

Owner's Manual

AR54.10-S-0005A

Danger!

Fuel vapors present an explosion hazard. Combustion gases are toxic when inhaled. Heater can cause severe burns during and after operation

Do not start up or operate stationary heaters or engines with heater boosters in closed rooms or in the vicinity of service stations. Allow heater to cool off after operation and wear protective gloves.

AS83.70-Z-0002-01A

2

Lower heater with support

AR83.70-S-5330-01A

*BA83.70-N-1005-01A

3

Remove protective cap (2)

4

Unscrew nut (1)

5

Disconnect electrical connection of spark plug (R18.1)

6

Unscrew spark plug (R18)

*BA83.70-N-1004-01A

7

Clean housing of spark plug in burner

Only when it is a DW5 heater (Diesel). Use correct tool.

8

Reinstall in opposite order

9

Carry out function test

AR83.70-S-5302-02A

Auxiliary heater

Number

Designation

Model
638

BA83.70-N-1004-01A

Spark plug in burner

Nm

17

BA83.70-N-1005-01A

Support on floor assembly

Nm

8

Referenced documents