When used in a commercial or defence department application, often a 75 mm ring type towing eye is requested.
This style of coupling is similar in function to ball type couplings (fixed and over ride ) but instead of the connection to the tow vehicle being a standard 50 mm ball, the connection is a 75 mm inside diameter ring and this attaches to a “pintle hook” fitted to the tow vehicle.
These types of couplings are primarily used in applications where the tow vehicle is a heavy commercial truck. As the Australian Standard AS4177 states the 50mm towball to have a maximum capacity of 3500 kg ATM (total loaded mass), ring couplings are used when higher loads are involved.
PART NO |
DESCRIPTION |
MOUNTING HOLE (LXW) AND DIAMETER |
SURFACE FINISH |
BALL TO FIRST CENTRE HOLE (NOMINAL) |
---|---|---|---|---|
614090 |
2000 kg Hydraulic Override with 3/4” master cylinder conversion |
184mm x 54mm x 13.5mm |
Painted |
138mm |
614092 |
2000 kg Hydraulic Override with 7/8” master cylinder conversion |
184mm x 54mm x 13.5mm |
Painted |
138mm |
614094 |
2000 kg Hydraulic Override with 1” master cylinder conversion |
184mm x 54mm x 13.5mm |
Painted |
138mm |
614095 |
3000 kg Mechanical Override – no brake plate |
184mm x 54mm x 13.5mm |
Painted |
138mm |
614096 |
2000 kg Mechanical Override – no brake plate |
184mm x 54mm x 13.5mm |
Painted |
138mm |
614098 |
2000 kg Mechanical Override with brake plate |
184mm x 54mm x 13.5mm |
Painted |
138mm |
614124 |
3000 kg Hydraulic Ring Override with 1” master cylinder conversion |
184mm x 54mm x 13.5mm |
Plated Body |
138mm |
614128 |
3000 kg Mechanical Ring Override with brake plate |
184mm x 54mm x 13.5mm |
Plated Body |
138mm |
614097 |
Coupling Ring – Anti Swivel Plate* |
184mm x 54mm x 13.5mm |
Painted |
138mm |
An anti swivel plate should be used to restrict the rotation of the ring to prevent ”Lock Up”. (Talk to your AL-KO customer service personnel)
PART NO |
DESCRIPTION |
---|---|
614310 |
Pintle Hook & Ball Combination – 6 Tonne hook & 3.5 Tonne Ball |
614312 |
Pintle Hook 10 Tonne |
PART NO |
DESCRIPTION |
MOUNTING STYLE |
---|---|---|
619100 |
Mechanical Park Brake Mechanism 400mm |
Requires separate mounting |
619150 |
Mechanical Park Brake Mechanism 280mm |
Mounts under rear of coupling bolts |