9.Allhydraulicsystemsshallberegularlyinspectedandmaintainedinconformance
withgoodpractice.Cylinders,valvesandothersimilarpartsshallbecheckedto
assurethat"drift"hasnotdevelopedtotheextentthatitwouldcreateahazard.
10.Truckshallbekeptinacleanconditiontominimizefirehazardsfacilitate
detectionoflooseordetectiveparts.
11.Modificationsandadditionswhichaffectcapacityandsafetruckoperationshall
notbeperformedbythecustomeroruserwithoutmanufacturerspriorwritten
approval.Capacity,operationandmaintenanceplatesordecalsshallbechanged
accordingly.