1 | Engine brake flange |
2A | Bushing |
2B | Bushing |
3 | Valve shaft (throttle valve) |
4 | Throttle valve |
5 | Throttle screw |
6 | Cylinder bracket |
7 | Support bolt |
8 | Lever screw |
9 | Shaft control lever |
10 | Lever nut |
11 | Ball terminal |
12 | Terminal nut |
13 | Pneumatic cylinder |
14 | Cylinder nut |
15 | Washers |
16 | Cylinder articulation axle |
17 | Shaft nut |
18 | Terminal lock |
B14.15-0018-06
B14.15-0021-09
1 | Engine brake flange | 13 | Pneumatic cylinder | |
4 | Throttle valve | 14 | Cylinder nut | |
6 | Cylinder bracket | 15 | Washers | |
8 | Lever screw | C | Pneumatic cylinder assembling pre-load | |
9 | Shaft control lever | D | Pneumatic cylinder length assembled | |
11 | Ball terminal |
1 | Engine brake flange |
2A | Bushing |
2B | Bushing |
3 | Valve shaft (throttle valve) |
4 | Throttle valve |
5 | Throttle screw |
A | Engine brake shaft axial clearance |
B | Distance between the bush face and flange center |
B14.15-0019-11
| Disassemble | ||
1 | Remove engine-brake flange (1) | ||
2 | Remove the cylinder nut (14) and washer (15) | ||
3 | Remove the terminal lock (18) and unfit the ball head (11) from shaft control lever (9). Then, remove the pneumatic cylinder (13) | ||
4 | Inspect the engine brake device for eventual wear | If necessary, replace it. | |
Motor 906.9, 924.9, 926.9Engine brake axial radial play (A) | |||
Engine 904.9Engine brake axial radial play (A) | |||
Motor 906.9, 924.9. 926.9Engine brake axial radial play | |||
Engine 904.9Engine brake axial radial play | |||
5 | Remove the lever screw (8) and the axle (9) control lever | Mark the axle lever position (9). | |
The existing groove on the throttle valve (3) does not serve as reference for shaft control lever assembly (9). | |||
6 | Remove the cylinder bracket (6) | ||
7 | Remove the valve screws (5) and the throttle valve (4) | ||
8 | Press the bushing (2A) while removing the throttle valve shaft (3) and the bushing (2B) | Utilize an appropriate mandrel. | |
| Assemble | ||
9 | Press the bushing (2B), until you get the measure (B) between bushing face engine brake and flange center (1) | Lubricate the bushing (2B). | |
Utilize an appropriate mandrel. | |||
Paste, hot lubrication 1 kg, DBL 6879.20 | |||
Motor 906.9, 924.9. 926.9Measurement of the bushing face to the flange center (B) | |||
Engine 904.9Measurement of the bushing face to the flange center (B) | |||
10 | Install throttle valve shaft (3) | ||
11 | Press the bushing (2A) until obtain the end play (A) | Lubricate the bushing (2A). | |
Utilize an appropriate mandrel. | |||
Paste, hot lubrication 1 kg, DBL 6879.20 | |||
Motor 906.9, 924.9. 926.9Engine brake axial radial play (A) | |||
Engine 904.9Engine brake axial radial play (A) | |||
12 | Install the throttle valve (4) | After pressing securely the throttle screws (5), take care so the throttle valve (4) does not interfere with the brake engine flange (1). | |
13 | Install the cylinder support (6) | ||
14 | Install the shaft control lever (9) | Note the performed marks on the disassembly. | |
Motor 906.9, 924.9. 926.9Length of the pneumatic cylinder assembled (D) | |||
Engine 904.9 in Type 368.0/1, 382.1, 384.06, 685.284Length of the pneumatic cylinder assembled (D) | |||
15 | Tighten the lever screw (8) | ||
16 | Install pneumatic cylinder (13) | Replace the cylinder nut (14). | |
17 | Adjust the pneumatic cylinder (13) mounting pre-load (C) | The pre-load eliminates vibrations motivated by throttle valve (4), avoiding, therefore, premature wear of engine brake assembly. | |
Motor 906.9, 924.9, 926.9Mounting pretensioned of the pneumatic cylinder (C) | |||
Engine 904.9Pneumatic cylinder assembling pre-tension (C) | |||
18 | Install the ball head (11) and then fit the head lock (18) | Lubricate the spherical terminal (11). | |
Paste, hot lubrication 1 kg, DBL 6879.20 | |||
19 | Install engine-brake flange (1) |