Engine brake - checking condition and adjustment

AP14.15-B-1450B

Engine brake - checking condition and adjustment

25.07.2017

Engine

376.9 in model 382, 384

Engine

377.9 in model 382, 384

Engine

457.9 in model 382, 634

Engine

476.9 in model 382

Engine

904.9 in model 368, 382, 384

Engine

906.9 in model 368, 382

Engine

924.9 in model 368, 384

Engine

926.9 in model 368, 382, 384, 634

Engine 904.9, 906.9, 924.9, 926.9

1 Cilindro pneumático

2 Terminal esférico

C Pré-tensão de montagem do cilindro pneumático

Engine 376.9, 377.9, 475.9, 476.9

1 Cilindro pneumático

2 Terminal esférico

D Pré-tensão de montagem do cilindro pneumático

Engine 457.9

1 Cilindro pneumático

2 Terminal esférico

D Pré-tensão de montagem do cilindro pneumático



Check

1

Open the engine access cover

 Access to carry out of the maintenance and repair works differs according to the body type/manufacturer

 Refer to the body makers instructions.

2

Remove pawl from ball terminal (2) and detach engine brake activation air cylinder rod (1)

 Apply resistant grease at high temperatures.

3

Test flap shaft movement smoothness

4

Examine air cylinder (1), joint part and flap shaft for wear

5

Test lever secure attachment at flap groove end

6

Adjust the pre-tensioning (D) of the pneumatic cylinder mounting

 This measurement will be correctly adjusted when pneumatic cylinder rod (1) is pulled according to correspondent measurement.

 The prior-tension eliminates the vibrations caused by the valve (throttle), thus avoiding the premature wear of the engine-brake assembly.

Engine 904.9Pneumatic cylinder assembling pre-tension (C)

*BE14.15-B-1002-01B

906.9, 924.9, 926.9Mounting pretensioned of the pneumatic cylinder (C)

*BE14.15-B-1002-01F

376.9, 377.9Pneumatic cylinder assembling pre-tensioning

*BE14.15-B-1002-01A

476.9D - Pre-tension of pneumatic cylinder assembly

*BE14.15-B-1003-01C

457.9D - Pre-tension of pneumatic cylinder assembly

*BE14.15-B-1002-01D

Engine brake

Number

Designation

Engine 372.985; 376.908/930/951/952/953/954/956/963/977/993/995; 377.960/964/965/968/969/972/973/981/982/983/984/985

BE14.15-B-1002-01A

Pneumatic cylinder assembling pre-tensioning

mm

2,5...3,5

Engine brake

Number

Designation

Engine 904.9

BE14.15-B-1002-01B

Pneumatic cylinder assembling pre-tension (C)

mm

1,0...2,0

Engine brake

Number

Designation

Engine 457.907/908/909/910/911/915/916/918/919/920/927/932/983, 460.984

BE14.15-B-1002-01D

D - Pre-tension of pneumatic cylinder assembly

mm

2,5...3,5

Engine brake

Number

Designation

Engine 906.9, 924.9, 926.9
except code MS5

Engine 924.9; 926.9 with Code MS5

BE14.15-B-1002-01F

Mounting pretensioned of the pneumatic cylinder (C)

mm

1,0 ... 2,0

1,0 ... 2,0

Engine brake

Number

Designation

Engine 476.9

BE14.15-B-1003-01C

D - Pre-tension of pneumatic cylinder assembly

mm

2,5...3,5