Air filter element - checking fouling. Replace according to condition

AP09.10-B-0951D

Air filter element - checking fouling. Replace according to condition

11.03.2020

Model

382.11/12, 384.06/07/20/22/31/33

Mechanical maintenance indicator on models OF 384.06/07

1

Indicator device plunger

2

Releasing knob

3

Sight glass

A

Filter element in operating conditions

B

Filter element saturated (replace)

Mechanical maintenance indicator on models OF 382.11/12

1

Indicator device plunger

2

Releasing knob

3

Sight glass

Electrical maintenance indicator on models OF 384.2/3

A

Air filter saturation indicator pilot lamp



Check

1

Open the engine access cover

 Access for maintenance and repair work execution vary according to the body type/manufacturer.
Refer to the body makers instructions.

2.1

Check plunger position (1) on the service indicator sight glass (3)

Only for the vehicles 384 with mechanical maintenance indicator.

 Mechanical service indicator

 After replacing the filter element, press the release button (2) located at the end of the maintenance indicator device to release the plunger, making it return to the position of low-saturation of the air filter.
If the plunger is at the position (A), run the engine until the coolant reaches the operating temperature. Accelerate the engine up to the maximum free speed and check the filter element saturation (A or B) again, in the maintenance indicator.

If the plunger is at the position (B), red strip visible, replace the filter element.



Replace air filter element
.

AP09.10-B-0980E

2.2

Check plunger position (1) on the service indicator sight glass (3)

Only for the vehicles 382 with mechanical maintenance indicator.

 Mechanical service indicator

 As filter element saturation occurs, depression increases and the plunger is drawn against its spring action, retained in intermediate positions according to the element degree of saturation.

 After replacing the filter element, press the release button (2) located at the end of the maintenance indicator device to release the plunger, making it return to the position of low-saturation of the air filter.

When the plunger is retained in the maximum saturation position (plunger fully visible in the sight glass of the indicator device body), replace filter element.



Replace air filter element

AP09.10-B-0980M

3

Replace the filter element when the maintenance indicator warning light (A) lights on, indicating its saturation, or at most after two years

Replace air filter element
.

AP09.10-B-0980E

 Electrical maintenance indicator