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Hose assembly installation and routing

Correct installation and routing of your hose assembly is essential for satisfactory performance. Time spent ensuring that the assembly is safe can reduce unnecessary costs and service life.

Once installation is complete, a proper inspection programme is required to ensure safe performance.


1. Clean the surrounding area where connections are to be made. Ensure no dirt or contamination gets into hydraulic openings.

2. Install adaptors into ports (if used). Tighten to manufacturer's recommended torque settings.

3. Lay the hose assembly into routing position to verify length and correct routing.

4. Screw one end of hose assembly onto port (or adaptor). If the hose assembly uses an angled fitting, always install it first to ensure proper positioning.

5. Screw other end of the assembly without twisting the hose. Use a spanner on the backup hex on the fitting while tightening.

6. Properly tighten both ends.

7. Run the hydraulic system to circulate oil under low pressure and reinspect for leaks and potentially damaging contact. Circulating also purges air (bleed) from the system that can cause sluggish performance and possible damage to pumps and other components.

Hose assembly routing tips

Proper hose installation is essential for satisfactory performance. If hose length is excessive, the installation’s appearance will be unsatisfactory, and unnecessary equipment costs will be incurred. If hose assemblies are too short to permit adequate flexing and allow for length changes due to expansion or contraction, service life will be reduced.

When hose installation is straight, allow enough slack in hose line to provide for length changes which will occur when pressure is applied.

To allow for length changes when hose is pressurised, do not clamp at bends so that curves will absorb changes. Do not clamp high and low pressure lines together.

Adequate hose length is necessary to distribute movement on flexing applications and to avoid abrasion.

When radius is below the required minimum, use an angled adaptor to avoid sharp bends.

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