Remove/install coolant pipes heat exchanger of hot-water auxiliary heater

AR83.60-D-0002TSR

Remove/install coolant pipes heat exchanger of hot-water auxiliary heater

20.12.2018

Model

907.6/7

Shown on model 907.7 with code XM1 (Noise abatement measures) and with code H12 (Hot-water auxiliary heater)

1

Coolant pipes

4

Coolant hoses

2

Expansion rivet

5

Hose clamps

3

Cover

6

Nut

 Danger

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.

AS00.00-Z-0010-01A

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

 Warning

Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.

Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.

AS20.00-Z-0001-01A

 

Remove/install

1

Switch off ignition and store transmitter key outside of transmission range (min. 2  m).

 To prevent the stationary heater from being switched on unintentionally, keep the Telestart transmitter protected against unauthorized or accidental access for the duration of the work on the stationary heater.
Deactivate the stationary heater's timer function.

2

Lift vehicle with lifting platform.

AR00.60-D-1000-04TS

Topical note

Special instructions for lifting and supporting vehicle

AH00.60-N-0100-01TS

3

Remove expansion rivets (2) and take off cover (3).

Model 907.6/7
with code XM1 (Noise reduction)

 Installation: Reinstall the cover (3) only after the leak test.

 Clip remover

*452589016300

4

Disconnect coolant hoses (4).

 Clamp

*000589543700

5

Open clamps (5) and detach coolant hoses (4) from coolant pipes (1).

 Collect escaping coolant using a suitable collecting pan.

 Hose clamp pliers

*454589003700

6

Seal all openings immediately with suitable stop plugs.

 Record plug

*129589009100

7

Unscrew nuts (6) and remove coolant pipes (1).

8

Install in the reverse order



Check

 Danger

Risk of explosion caused by fuel vapors igniting, risk of poisoning caused by inhaling combustible gases and risk of injury caused by burns during and after operation of heater unit

Do not operate stationary heater, auxiliary heater or engine with heater booster in closed rooms or when refueling. Allow heater unit to cool down after operation and wear protective gloves.

AS83.70-Z-0002-01A

9

Perform function check of auxiliary heating.

10

Check coolant circuit on coolant pipes (1) for leak tightness.

 Visual inspection.

11

Check/correct coolant level.

Model 907.6/7 with engine 274

AR20.00-D-1142TSC

Model 907.6/7 with engine 642
Model 907.6/7 with engine 651

AR20.00-D-1142TSR