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Fig. 86 Wear alert, ball coupling (ALKO-EU)
1
Ball coupling
2
Wear indicator
+
Green zone (OK)
–
Red zone (wear tolerance exceeded)
1.
Danger of accident from worn coupling!
The machine may detach from the towing vehicle.
➤ Do not tow the machine.
➤ Have the ball coupling and ball hitch checked.
➤ Replace worn parts.
2. Couple-up the machine and tow slowly and carefully for about 0.5 miles.
The action of towing sets the coupling mechanism to maximum closure and gives a true read‐
ing on the wear indicator.
3. Interpret the wear indicator as follows:
Wear indicator
Meaning
Green zone showing ■ Coupling in new condition.
■ Towing vehicle ball hitch wear within acceptable limits.
➤ No action necessary.
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. 89 Ball coupling wear indicator
Coupling 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.
12 Decommissioning, Storage and Transport
12.2 Transport
230
Operator Manual Screw Compressor
M114 SIGMA CONTROL SMART
No.: 901765 05 USE
Option rd/ro/rs