Santa Ana, CA 6/19/04

04-0619CA technical archives TRIC Training Log: 06-19-04 Client: Orange Coast Plumbing, Santa Ana, CA Job: Replace 4” C. I. drain line under concrete patio at fire station Pull: 40’ / 4” / SDR17 / Downstream

04-0619CA technical archives The cast: The able crew of Orange Coast Plumbing in Santa Ana, CA.

04-0619CA technical archives The pull: 40’ under concrete, pulling hole (in foreground) is downstream. Material to be replaced is bell-and-spigot 4” cast iron.

04-0619CA technical archives Entry hole: Roughly 2.5’ x 4’ x 3.5’ deep.

04-0619CA technical archives Pulling hole: Roughly 4’ x 4” x 5’ deep.

04-0619CA technical archives Setup: Snapping out old cast iron cleanout manifold at pulling hole.

04-0619CA technical archives Head assembly: Ready to fuse the PE end cap.

04-0619CA technical archives Wonder plastic: A word on the durability and versatility of PE pipe.

04-0619CA technical archives Head assembly: Using a socket wrench to secure clevis head to PE end cap after fusion.

04-0619CA technical archives Securing pipe in jig: Note wood used to level pipe with fusing machine.

04-0619CA technical archives New specimen: A quick explanation of the pipe bursting process.

04-0619CA technical archives Fusing: Watch closely, and join ends just enough to see an even bead roll from each facing surface. Going further will weaken the joint by pushing beyond the melted material.

04-0619CA technical archives Bead reaming: After each joint has completely cooled, leave pipe in fusion jig for support and alignment during the bead reaming process (required in some areas).

04-0619CA technical archives Straight shooting: Lining up reamer with pipe.

04-0619CA technical archives The spin: Use a sturdy right-angle drill with enough torque to do the job.

04-0619CA technical archives Reaming: Note shaved bead removed by reamer blade.

04-0619CA technical archives Fusion machine: Lining up pipe in the jig.

04-0619CA technical archives Alignment: Adjust entire length of pipe from side to side or up and down to match ends as closely as possible before trimming. Some PE pipe may be slightly out of round due to storage or temperature variations. In this case, rolling the pipe in the jig can help match outside diameters.

04-0619CA technical archives Heating: Check mating surfaces again after trimming before inserting heating iron.

04-0619CA technical archives Heating iron: Factory set at 450º, here shown set at 500º. Allow a half-hour to warm up.

04-0619CA technical archives Fusing logistics: You may elect to fuse head assembly last. Putting the head on one end of the line versus the other can greatly facilitate entry positioning.

04-0619CA technical archives Cooling: For most common PE pipe sizes up to 6” diameter, a good rule of thumb is 10 minutes per joint. Pipe should remain undisturbed while cooling. See manufacturer’s specifications for further details.

04-0619CA technical archives The business end: Trimming the head assembly for fusing.

04-0619CA technical archives Before heating: Remove trimmings from jig area, being careful not to touch mating surfaces..

04-0619CA technical archives Last joint.

04-0619CA technical archives Entry hole: Note relatively tight angle of attack. Here the top of the old pipe in the ground is broken out to ease entry.

04-0619CA technical archives Positioning: Hauling pipe into place to connect to cable.

04-0619CA technical archives Almost ready: Head assembly is attached to the cable. Note orange spray paint on cable just before clevis sheath (cable terminator). This makes clevis more visible as it approaches the pulley assembly.

04-0619CA technical archives Entry: Give the cable enough room to take up any slack before tension occurs. Also be aware of which way the clevis assembly is “hinging” so that it moves in the natural direction of the pull.

04-0619CA technical archives Good start: Flexible yet durable PE pipe can negotiate tight angles. Always monitor head upon entry, to begin pull as smoothly as possible.

04-0619CA technical archives Progress: After the first few feet, the length of pipe usually needs little attention.

04-0619CA technical archives Least resistance: Monitor pipe to ensure that no unnecessary scraping or gouging occurs as line is dragged into the earth. Here the concrete edge of the entry hole was smooth enough so as not to require protection.

04-0619CA technical archives Versatile: TRIC ram can operate at any axial rotation on pulley assembly. Also, note pressure plate against utility line. If other utilities interfere with pull, pressure plate can be rotated or even removed, and steel poles driven in its place to resist pulley pressure.

04-0619CA technical archives Interference: Here another utility line makes using the extender cage precarious.

04-0619CA technical archives Remedy: Use extended cribbing instead.

04-0619CA technical archives Whatever works: Keep plenty of wood on hand. Thick plywood, 2” x 4” and 4” x 4” lumber makes setup easier, and can even save the day.

04-0619CA technical archives Helping hand: Reinserting cable into ram.

04-0619CA technical archives Freedom: Bursting head makes a complete exit, as clevis sheath (cable terminator) reaches threshold of pulley housing.

04-0619CA technical archives Made it: Mole is removed and line is ready to “bump” from other end.

04-0619CA technical archives Excess is good: Always fuse enough pipe to extend beyond entry hole at end of pull. This allows you to trim excess to optimal length for bumping.

04-0619CA technical archives Swing away: A 12 to 16-pound sledge hammer is ideal for pipe up to 6” diameter.

04-0619CA technical archives Perfect fit: Bumping from the other end to drive pipe right up to coupling. This also helps to relieve any stretching that may have occurred in pipe during longer pulls through bends and/or difficult ground conditions.

04-0619CA technical archives Flex: Relieving curve “memory” in pipe, driving a wedge between top of pipe and earth.

04-0619CA technical archives Matching up: Connecting to existing pipe upstream.

04-0619CA technical archives Cleanout: Stack reassembly.

04-0619CA technical archives Final touch: A standard cast iron to plastic coupling is used to tie into new line.

04-0619CA technical archives Customized: Note extendable bracket attached to power unit’s engine cage, to hang hydraulic hoses.

04-0619CA technical archives It’s a wrap!

http://www.trictrenchless.com	371
http://www.trictools.com	356
http://trictools.com	43
http://trictrenchless.com	9
http://design.espis.com	8
http://translate.googleusercontent.com	5
http://webcache.googleusercontent.com	1
http://translate.yandex.net	1

Santa Ana, CA 6/19/04

by TRIC Tools on Apr 05, 2010

Accessibility

Tags

Upload Details

Usage Rights

8 Embeds 794

Statistics

Santa Ana, CA 6/19/04 — Presentation Transcript