Ashland 1200 TR - Manual (Page 31)

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OPERATING CONDITION.
17. IN PIPING THE HYDRAULIC SYSTEM ON THE EQUIPMENT, USE ONLY MATERIALS OF
ADEQUATE SIZE AND STRENGTH TO SUIT THE FLOWS AND PRESSURES WHICH WILL BE
PRESENT IN THE SYSTEM. IF A SCHEMATIC IS PROVIDED, IT PROBABLY SHOWS MINIMUM
SUGGESTED LINE SIZES. LENGTH OF RUNS AND PRACTICAL EXPERIENCE MAY INDICATE USE
OF LINE SIZES LARGER THAN SHOWN ON THE SCHEMATIC. USE SAFETY FACTORS IN SELECT-
ING MATERIALS FOR STRENGTH TO AllOW FOR SHOCK AND OVER-PRESSURE CONDITIONS
WHICH MAY OCCUR.