Page 484 - 2019 PRODUCT TECHNICAL MANUAL - HYDRAULICS V4-8

TECHNICAL
ASSEMBLY INSTRUCTIONS – RTH1 HOSES
ASSEMBLY INSTRUCTIONS FOR:
TT000 SERIES ONE-PIECE COUPLINGS. USE ONLY MATCHED SERIES OF RYCO RTH1 SERIES HOSE.
STEP ONE
CUT POINT
• Tape with masking tape at the cut position to prevent wire braid flaring.
STEP TWO
• Cut hose to length. Ensure hose is cut squarely.
• Clean hose bore.
• WARNING: Do not smoke in the vicinity when cutting RTH1 hoses
because fumes created are toxic and may mix with cigarette smoke when inhaled.
STEP THREE
MARK LENGTH
• Refer to “RYCO Crimp Chart” for Mark Length of Coupling.
• Mark outer cover with Mark Length.
• Push hose into the fitting (lightly lubricate the hose bore only if necessary as
excess lubrication may reduce hose assembly impulse life) until the mark on
the hose is even with the end of the ferrule*.
• Note: Push the hose all the way into the fitting.
STEP FOUR
MARK LENGTH
• Place assembled end into the jaws of crimp machine.
• Operate machine to crimp ferrule to predetermined diameter.
(Refer to “RYCO Crimp Chart”).
• Open the crimp machine.
• Check that the Mark Length mark is still visible and even with the end of the
ferrule to ensure coupling has not moved during crimping.
STEP FIVE NOTE
MARK LENGTH IS LEVEL WITH END OF COUPLING
Check that full length of ferrule has been crimped.
Check the crimp diameter with a caliper or micrometer. Crimp diameter should be measured halfway along ferrule. Measure between the ridges, and make sure that the caliper fingers do not touch ridges.
• Extra special care must be exercised in the preparation, assembly and crimping of these fittings due to the very high pressures and end loads encountered.
• The latest RYCO Crimp Chart detailing Mark or Skive Length and Crimp Diameter is available from the RYCO website.
• Note: Do not use lubricant for hose to be used with volatile gases.
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RYCO QUALITY