Check Before Towing; Driving; Unhitching The Trailer - Ingersoll Rand G330 Guía De Usuario Y Mantenimiento Manual

4.2 Check before towing

Before towing carry out the following checks:
- wheel torquing
- lock trailer hook
- tyre pressure
- light signals working
- cover doors closed
- parking brake off
- front wheels and rear supports lifted.
- tightening and fixing the draw bar arms locking levers
- brake test for "road" type trailers
- fitting brake safety cable.

4.3 Driving

- "On-site" type trailer
These trailers are not fitted with a main brake and so cannot brake when operating; the tyres
are designed for a speed of 17 mph (27 Km/h). Therefore, it is absolutely forbidden to exceed
this speed .
- "Road" type trailer
The driving speed should be adapted to road conditions and the trailer handling.
Driving at sustained speed causes tyres to heat up; therefore it is important to stop from time
to time to check them. Excessive heating can lead to a blow out and hence a serious accident.
When reversing, do not forget to lock the overrun brake.
NOTE
Particular attention must be paid to wheel torquing on new vehicles. Indeed, during the
first few miles, heat build-ups on the wheel hubs and brake drums lead to reduced wh
torquing. It is therefore essential to check the torquing every 6 miles (10 kilometres) until
no further loosening is noted.
The torque test should nevertheless be carried out before towing.

4.4 Unhitching the trailer

This operation should be carried out on horizontal, flat, stable ground.
- lock the wheels
- lower the front wheel
- disconnect the road signals wire
- refit the hitch using the wheel to release the hook ring from the tow vehicle,
- release the tow vehicle
- engage the handbrake.
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