As a minimum this must be a visual check on all lights, oil, water, tyres, mirrors, access ramps (where applicable) and seat belts.
Dylid cynnal archwiliad gweledol o'r holl oleuadau, lefelau olew a dŵr, y teiars, y drychau, y rampiau mynediad (lle y bo'n gymwys) a'r gwregysau diogelwch o leiaf.