Removal and installation of thermostat for intake air preheater

Thermostat, dimension “a”

7—8 mm

A. Knecht version

1    Compress compression spring (5) and push actuating bolt (9) from air valve shaft (8) and out of fastening eye.

2    Pull actuating bolt (9) together with guide sleeve (4) out of actuating pin of thermostat.

3    Unscrew square nut (3) and remove air filter cover.

4    Remove thermostat from inside out of intake pipe.

Do not turn or push out plastic fastening nut (2).

5   Screw thermostat (1) from inside into plastic fastening nut (2) until dimension “a” = 7—8 mm is attained. Lock thermostat by means of square counternut (3).

6    Install actuating bolt (9) with guide sleeve (4) and compression spring (5).

B. Mann und Hummel version

1    Push guide sleeve (3) against spring (4) and disconnect from pressure pin.

2    Remove air filter cover. Unscrew hex nut (2), unscrew thermostat from inside out of air filter housing.

09.2 lb-405/1

3 Install thermostat in vice versa sequence and set dimension “a”.

09.2 lb-405/2