Page 494 - 2019 PRODUCT TECHNICAL MANUAL - HYDRAULICS V4-8

TECHNICAL
HOSE ASSEMBLY – INSTALLATION GUIDE
INSTALLATION GUIDE - HOSE ASSEMBLY
Proper hose installation is essential for satisfactory performance. If hose length is excessive, the appearance of the installation will be unsatisfactory and unnecessary cost of equipment will be involved. If hose assemblies are too short to permit adequate flexing and changes in length due to expansion or contraction, hose service life will be reduced.
The following diagrams show proper hose installations which provide maximum performance and cost savings. Consider these examples in determining length of a specific assembly.
STRAIGHT HOSE INSTALLATIONS
• When hose installation is straight, allow enough slack in hose line to provide for length changes that will occur when pressure is applied.
FLEXING APPLICATIONS
• Adequate hose length is necessary to distribute movement on flexing applications, and to avoid abrasion.
TWISTS AND BENDS, PART ONE
• When radius is below the required minimum, use an angle adaptor to avoid sharp bends.
TWISTS AND BENDS, PART TWO
• Avoid twisting of hose lines bent in two planes by clamping hose at change of plane.
TWISTS AND BENDS, PART THREE
• Use proper angle adaptors to avoid sharp twists or bends in the hose.
TWISTS AND BENDS, PART FOUR
• Prevent twisting and distortion by bending hose in same plane as the motion of the boss to which hose is connected.
492 HIGHER TECHNOLOGYRYECQOUAQLUSALGIRTEYATER PERFORMANCE