Wear indicator Meaning
Red zone showing ■ Ball hitch wear at acceptable limit, ball coupling unworn.
■
Ball hitch in new condition; ball coupling showing increased wear.
■ Both ball and coupling showing increased wear.
■ Ball coupling damaged.
➤ Have the ball coupling and ball hitch checked by a specialist workshop.
➤ Replace worn parts.
Tab. 98 Ball coupling, wear indicator
Coupling a machine with ball coupling (US version)
To couple up the compressor, lower the open coupling onto the ball hitch of the towing vehicle so
that it clicks into place.
Fig. 75 Ball coupling (US version)
1 Coupling handle
2 Ball coupling
3 Towing vehicle ball hitch
4 Safety pin
5 Fixing hole for the security pin
6 Ball coupling properly secured
1.
There is considerable danger of injury caused by trapped fingers.
They can be trapped in the spring-loaded closing mechanism.
➤ Never place your fingers inside an open ball coupling.
➤ Always wear protective gloves.
2. Check if the security pin is removed from the coupling and draw it out if not.
3. Pull up the coupling handle.
The coupling opens.
4.
Risk of accident due to unhitching of the ball coupling during transport.
If the coupling is not fully closed the compressor can become uncoupled from the towing vehi‐
cle and cause an accident.
➤ Check correct coupling.
➤ Check correct location of the security pin.
5. Place the open coupling over the towing vehicle ball hitch.
The weight on the coupling will cause it to audibly close. The coupling locks automatically.
Closing and locking is automatic.
6. Push the handle down to be certain of locking.
The coupling is fully locked when the handle is fully down and can be pushed no further.
7. Insert the security pin in the ball coupling fixing opening.
12 Decommissioning, Storage and Transport
12.2 Transport
222
Operator Manual Screw Compressor
M27
No.: 9_9548 05 USE
Option rd/ro/rr
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