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2004-0804TX
technical archives
www.trictrenchless.com
TRIC Training Log: 08-04-04
Client: ARS Rescue Rooter, Dallas, TX
Job: Residence, to rear property line, replacing 4” VCP
Pull: two spurs, downstream / 10’ & 25’ / 4” / SDR17
2004-0804TX
technical archives
www.trictrenchless.com
We at TRIC Tools have specific requirements for the use and maintenance of our equipment with regard to safety and efficiency on the job. Our written and verbal recommendations coincide with safety regulations set by local, state, and national government agencies. Our
clients may have standards over and above industry regulations. However, the safety equipment, apparel, and operating procedures
demonstrated by our clients in this presentation may or may not comply with above mentioned government regulations.
2004-0804TX
technical archives
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Preparation: Have plenty of wood on hand for every pull. 2” x 4”, 4” x 4”, and 4” x 6” sizes are best, in 2’ to 3’ lengths for resistance cribbing, and 1’ lengths for pulley support.
2004-0804TX
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Two pulls: Two lateral spurs join at pit where worker is digging. Rear property line is to right; main runs down service alley. This pull is less than 10 lineal feet, but still saves a lot of
manual digging in hard Texas “white rock” soil.
2004-0804TX
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First pull: Roughly 25’ under concrete patio from west lateral spur exit (dirt mound) to intersection with east spur (worker with shovel).
2004-0804TX
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Property line: Pulling pit about 4’ deep.
2004-0804TX
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Spur junction: West spur (upper left) meets east spur (top) just inside edge of concrete patio slab. First pull set up against west spur wall of pit.
2004-0804TX
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Trimming pipe
2004-0804TX
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Fusion jig: Remove trimmings after each facing.
2004-0804TX
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Staging area: Find an area as flat and unobstructed as possible to fuse pipe.
2004-0804TX
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Cooling time: After fusing, allow joints to cool for 10 minutes (SDR17 4” & 6”) before removing from jig. See pipe manufacturer’s specs for more detail. Also, protect trimmer blades
(above) by setting trimmer wheel down on edge rather than flat as shown.
2004-0804TX
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Good weld.
2004-0804TX
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First pull: Watching for the cable clevis sheath (terminator) to appear at pulley plate.
2004-0804TX
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Arrival: Clevis sheath (in shadow under resistance plate bolt) just visible between pulley plate and pulley wheel. Keep this area free from debris to allow clear view of cable at all times,
so as not to pull cable sheath under pulley wheel. Note east spur above pulley.
2004-0804TX
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West spur done: Removing clevis bolt.
2004-0804TX
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Pull #2: Cribbing and pulley support.
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Entry: Ready to start pulling pipe.
2004-0804TX
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Going… Assist each entry to assure that it is as direct and unobstructed as possible.
2004-0804TX
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Going…
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Gone: In more difficult or angular entries, assist pipe entry by standing on pipe or otherwise flexing it to be in line with old pipe.
2004-0804TX
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During pull: After tension is applied and ram is stable, get out of the pulling pit.
2004-0804TX
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Disconnecting ram: Ready for extender cage.
2004-0804TX
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Resistance plate: Some users find it handy to cut out a copy of the resistance plate using 1” plywood. A wood template can be used to size up pulling pits as they are being dug (rather
than lifting the metal plate in and out of the pit).
2004-0804TX
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Extender cage: With a straight and clean pulling wall, often there is no need for cribbing between cage and earth. In this instance, ground is dry and solid.
2004-0804TX
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Ram assembly: A pit roughly 4’ in length allows ample space for using the extender cage. When the pits must be shorter, extra wood cribbing is used instead of the cage.
2004-0804TX
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Last foot: Head assembly freed from earth.
2004-0804TX
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Ram care: Find a clean place to set ram during job (such as a small piece of plywood). Keep jaws clean and protect chrome rods from nicks and deep scratches by keeping ram in
contracted position when not in use. (Damaged rods can cause leaks in hydraulic seals.)
2004-0804TX
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Pull complete: Cage alone (without extra cribbing) provides enough extension to free bursting head and expose pipe to trim minimum length behind PE cap.
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Release: Cable disconnected from head assembly.
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Spur junction: West spur (right) and VCP east spur (bottom, barely visible) ready to join new lower lateral.
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Cover up: New house cleanout at west spur.
2004-0804TX
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Clean up: Two pulls, three holes, small yard.
2004-0804TX
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Dedicated van: One vehicle should contain all necessary pulling equipment.
