Hydraulic shoe brake wheel
To increase the braking force of the 4″ and 5″ shoe brake wheels they can be fitted with a hydraulically actuated anchor plate. The advantage is that the friction of the mechanic actuating cables is omitted due to the hydraulic actuation. Thus the brake gains power and is better dosable. The effort involved in the modification is minimal: only the anchor plate has to be exchanged. All connecting dimensions of the wheel (installation width, position of the anchor bolt) remain unchanged.
The hydraulically actuated anchor plates are supplied including master cylinder, hydraulic hose and detailed working instructions.
| P/N | Description | Hydraulic fluid | Connecting thread | Remarks |
| 045930 | Hydraulic actuation 4″ Liliput |
Tost Mineral Fluid | M5 | Technical consultation recommended prior to modification |
| 045940 | Hydraulic actuation 4″ Kobold | Tost Mineral Fluid | M5 | |
| 045945 | Hydraulic actuation 5″ Standard |
Tost Mineral Fluid | M5 | Axle diameter 20 mm |
| 045943 | Hydraulic actuation 5″ Standard |
Tost Mineral Fluid | M5 | Axle diameter 30 mm |
| 045925 | Hydraulic actuation 5″ Standard ASW 19/20 |
Tost Mineral Fluid | M5 | Axle diameter 20 mm
! EASA approval in progress ! |
| 045948 | Hydraulic actuation 5″ Standard |
Tost Mineral Fluid | M5 | Axle diameter 35 mm |
Please indicate with your order aircraft type, axle diameter and type of anchor bolt, so that we can deliever the suitable anchor plate.
If the wheel is more than 30 years old, we remcommand a technical consultation prior to the modification.
