D4-9 / D4-9X Four-Post Lifts
43
P/N 5900251 — Rev. A1— August 2021
Working with Compression Fittings and Tubing
Your Lift comes with a roll of ¼ inch, black, polyethylene Tubing (also called Poly-Flo® Tubing) that is
used with Compression Fittings for the Return Line.
Note:
Compression Fittings are different from Hydraulic Fittings. This section covers Compression
Fittings only.
The components involved with Compression Fittings include:
•
¼ inch, black, polyethylene Tubing
. You use a single piece of Tubing for the Return Line.
•
Elbow Compression Fittings
. One on the Power Unit and one on the Hydraulic Cylinder.
•
Nuts, Ferrules, Rods, and Threads
. Each connector on an Elbow Compression Fitting has a
Nut, Ferrule, Rod, and Threads (see drawing below). The Nut holds the Tubing and Fitting
together. The Ferrule compresses when you tighten the Nut on the Threads to make a secure
connection. The Rod goes inside the Tubing so that nothing leaks out.
The following drawing shows the components of a connector on an Elbow Compression Fitting.
Important
:
Ferrules can only be tightened once
. When you tighten the Nut on the Threads,
the Ferrule gets compressed; it literally changes shape and
cannot
be used again.
To connect Tubing to a Compression Fitting:
1.
Push the Tubing through the Nut and Ferrule and over the Rod.
Do not push hard; you only need the Tubing to go a little way over the Rod. You may not be able
to see the Ferrule at this point, but the Tubing must go through the Ferrule and over the Rod.
2.
Slide the Nut on the Tubing
away from the Fitting
; if the Nut is still on the Threads, unscrew it
from the Threads and then slide it away from the Fitting. See the drawing above.
3.
Slide the Ferrule over the Tubing, away from the Fitting and towards the Nut.
4.
With the Nut and the Ferrule out of the way, push the Tubing further over the Rod until it stops. Do
not push hard.
5.
Slide the Ferrule and the Nut back to the Threads on the Fitting.
The Ferrule goes around the Rod and under the Threads. The Nut goes onto the Threads.
6.
Tighten the Nut.
Remember that the Ferrule can only be used once; do not tighten the Nut until everything is ready.
Summary of Contents for D4-9
Page 10: ...D4 9 D4 9X Four Post Lifts 10 P N 5900251 Rev A1 August 2021 Specifications Side View Top View...
Page 60: ...D4 9 D4 9X Four Post Lifts 60 P N 5900251 Rev A1 August 2021...
Page 71: ...D4 9 D4 9X Four Post Lifts 71 P N 5900251 Rev A1 August 2021 Labels...
Page 72: ...D4 9 D4 9X Four Post Lifts 72 P N 5900251 Rev A1 August 2021...
Page 73: ...D4 9 D4 9X Four Post Lifts 73 P N 5900251 Rev A1 August 2021...
Page 74: ...D4 9 D4 9X Four Post Lifts 74 P N 5900251 Rev A1 August 2021...
Page 75: ...D4 9 D4 9X Four Post Lifts 75 P N 5900251 Rev A1 August 2021 Parts Drawings...
Page 76: ...D4 9 D4 9X Four Post Lifts 76 P N 5900251 Rev A1 August 2021...
Page 77: ...D4 9 D4 9X Four Post Lifts 77 P N 5900251 Rev A1 August 2021...
Page 78: ...D4 9 D4 9X Four Post Lifts 78 P N 5900251 Rev A1 August 2021...
Page 79: ...D4 9 D4 9X Four Post Lifts 79 P N 5900251 Rev A1 August 2021...
Page 80: ...D4 9 D4 9X Four Post Lifts 80 P N 5900251 Rev A1 August 2021...
Page 81: ...D4 9 D4 9X Four Post Lifts 81 P N 5900251 Rev A1 August 2021 Maintenance Log...
Page 82: ...D4 9 D4 9X Four Post Lifts 82 P N 5900251 Rev A1 August 2021 Maintenance Log...
Page 83: ...D4 9 D4 9X Four Post Lifts 83 P N 5900251 Rev A1 August 2021 Maintenance Log...
Page 85: ...1645 Lemonwood Drive Santa Paula CA 93060 USA 2021 BendPak Inc All rights reserved dannmar com...
