Ring Type / Coupling Park Mechanism

Image_292When 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.

70mm Ring Type

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)

Pintle Hooks

Image_283

PART NO

DESCRIPTION

614310

Pintle Hook & Ball Combination – 6 Tonne hook & 3.5 Tonne Ball

614312

Pintle Hook 10 Tonne

Park Brake Mechanism

Image_284

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

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