Remove/install auxiliary air heater unit

AR83.70-D-8512F

Remove/install auxiliary air heater unit

30.09.2013

MODEL

909.8

with CODE H11 (Auxiliary hot-air heater)

2

Clip

3

Exhaust line

4

Screw

5

Clip

6

Clip

7

Intake line

8

Clip

9

Fuel line

10

Nuts

1

Heater unit

13

Base (with CODE UZ1 (CORPORATE bus 16+1 - seater with center aisle))

16

Heater cover (without CODE UZ1 (CORPORATE bus 16+1 - seater with center aisle))

11

Screw/bolt (with CODE UZ1 (CORPORATE bus 16+1 - seater with center aisle))

14

Hose (with CODE UZ1 (CORPORATE bus 16+1 - seater with center aisle))

17

Screw/bolt (with CODE UZ1 (CORPORATE bus 16+1 - seater with center aisle))

12

Cover (with CODE UZ1 (CORPORATE bus 16+1 - seater with center aisle))

15

Cover

18

Electrical connections

 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

 Danger !

Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contactwith fuel.

No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only.
Wear protective clothing when handling fuel.

AS47.00-Z-0001-01A

 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



Notes on carrying out repair work in the vehicle interior

AH68.00-N-0001-01S

 

Remove/install

1

Lift vehicle on vehicle lift

AR00.60-D-1000F

2.1

Release clamp (2) and remove exhaust line (3) from heater (1)

MODEL 909.8
with CODE H11 (Auxiliary hot-air heater)
without CODE W03 (Body extension)

2.2

Remove screw/bolt (4) from clamp (5) of exhaust line (3)

MODEL 909.8
with CODE H11 (Auxiliary hot-air heater)
without CODE W03 (Body extension)

3

Release clamp (6) and remove intake duct (7) from heater (1)

MODEL 909.8
with CODE H11 (Auxiliary hot-air heater)
without CODE W03 (Body extension)

4

Release clamp (8) and remove fuel line (9) from heater (1)

MODEL 909.8
with CODE H11 (Auxiliary hot-air heater)
without CODE W03 (Body extension)

5

Unscrew nuts (10)

6

Lower vehicle on lifting platform

7.1

Remove screws/bolts (11) and remove cover (12) from base (13)

MODEL 909.8
with CODE H11 (Auxiliary hot-air heater)
with CODE UZ1 (CORPORATE bus, 16+1-seater with center aisle)

7.2

Remove heater cover (16)

MODEL 909.8
with CODE H11 (Auxiliary hot-air heater)
without CODE UZ1 (CORPORATE bus, 16+1-seater with center aisle)

 The heater cover (16) is fastened using 4 screws/bolts.

8

Lift heater (1) far enough off of vehicle floor until the exhaust line (3), intake duct (7) and the fuel line (9) are accessible

MODEL 909.8
with CODE H11 (Auxiliary hot-air heater)
without CODE W03 (Body extension)

9

Release clamp (2) and remove exhaust line (3) from heater (1)

MODEL 909.8
with CODE H11 (Auxiliary hot-air heater)
with CODE W03 (Body extension)

10

Release clamp (6) and remove intake duct (7) from heater (1)

MODEL 909.8
with CODE H11 (Auxiliary hot-air heater)
with CODE W03 (Body extension)

11

Release clamp (8) and remove fuel line (9) from heater (1)

MODEL 909.8
with CODE H11 (Auxiliary hot-air heater)
with CODE W03 (Body extension)

12

Position heater (1) in base (13) so that the screws/bolts (17) are accessible

MODEL 909.8
with CODE H11 (Auxiliary hot-air heater)
with CODE UZ1 (CORPORATE bus, 16+1-seater with center aisle)

13

Remove screws/bolts (17) and detach hose (14) from heater (1)

MODEL 909.8
with CODE H11 (Auxiliary hot-air heater)
with CODE UZ1 (CORPORATE bus, 16+1-seater with center aisle)

14

Unclip cover (15) from heater (1)

 Installation: Ensure that grommet (arrow) is correctly seated in heater housing (1).

15

Disconnect electrical connectors (18)

16

Remove heater (1) from vehicle

17

Install in the reverse order