The previous ram-ready box disappeared, but the stock-style pump remains, mounted to the K10’s Ram-Jet 350 crate engine. Going with our “if it ain’t broke” theme, Offroad Design helped fill in the blanks. The company sells PSC-built hydraulic steering components for GM trucks, and it recommended the Economy steering box for this street/trail K10. This particular econo-box begins as a clean-core ’80-’87 Saginaw unit from a 2WD application. The ’80s cores are generally in better shape than the earlier ones, and 2WD versions have the stronger fully splined sector shafts. PSC rebuilds these base boxes with new seals and fresh internal parts as necessary. Because we’re adding a hydraulic ram, we got an assist-ready box tapped with ports in the optimal locations for feeding the ram cylinder. (A hose kit is available with the ram; we’re getting custom hoses with AN-6 fittings from Aeroquip.)
The previous box and pump had the later metric O-ring ports. The jury is hung between these and the earlier inverted-flare fittings. One school (the old one) says that inverted flares are more solid and less likely to leak. The other school answers that if you do spring a leak, it’s likely from a failed O-ring—a cheap, easy fix. Our existing engine-mounted pump/reservoir and the PSC box have metric ports, so we’ll connect them with the later-model OE-spec O-ring–style hoses.
Offroad Design says that the existing stock-style steering pump and reservoir are marginal—the assist cylinder and extra lines ideally call for increased fluid capacity. A PSC pump with remote reservoir would be optimal, but we’ll run what we brung, then upgrade when it dies. (When you’re retaining the OE pump, Watson recommends updating the older bolt-on pulleys to the later, more reliable press-on ones.) Because we’re running moderate tires and adding ram-assist, Offroad Design doesn’t feel that any high-flow tweaks are necessary. Some of the DIY tricks include drilling out the pump’s main fitting to increase flow, increasing pressure with fewer or thinner shims and by grinding the limiting stud, and stretching the spring to maintain the pressure at higher engine rpm. See the sidebar for other, more extreme tricks.
2011年8月31日星期三
2011年8月30日星期二
Hose monitoring/tagging maximize uptime, safety
Two Gates Sentry Hydraulic Services optimize system performance and minimize downtime as they monitor hose service life and identify replacement hose specifications.
Gates Sentry IQ Service is a predictive maintenance application. It continuously monitors hydraulic assemblies' pressure, temperature, and impulse cycles to gauge remaining hose life.
Gates Sentry ID Service is a highradiofrequency tagging system. It identifies and tracks specific hydraulic hose assemblies for replacement purposes.
Additional information on both services — offered to maximize hose uptime, efficiency, and safety — is yours free.
Gates Sentry IQ Service is a predictive maintenance application. It continuously monitors hydraulic assemblies' pressure, temperature, and impulse cycles to gauge remaining hose life.
Gates Sentry ID Service is a highradiofrequency tagging system. It identifies and tracks specific hydraulic hose assemblies for replacement purposes.
Additional information on both services — offered to maximize hose uptime, efficiency, and safety — is yours free.
2011年6月12日星期日
Alberta oil industry, gov't sued over contaminated water
An Alberta woman is vowing to continue her fight against government and the oil industry over a drilling process she says has ruined her water supply.
Jessica Ernst, who lives near Rosebud, Alberta, says the process, known as hydraulic fracturing, involves pumping water, nitrogen and chemicals into the ground at high pressure in order to cause a series of cracks and free up natural gas.
She says drilling that was done in 2003 has caused her water supply to be contaminated with methane gas.
Ernst can fill a bottle with water from a hose, wait a couple of minutes and then light the water on fire.
She's suing Encana, Alberta Environment and the Energy Resources Conservation Board for (m) millions of dollars in damages.
The industry says the drilling process is safe and that the contamination occurred from naturally occurring methane nearby.
Ernst says she knows what she's up against, and her chances of winning her legal battle are slim.
But she vows to fight it out to the end and says she will not settle out of court because she wants the truth about hydraulic fracturing to be known.
Jessica Ernst, who lives near Rosebud, Alberta, says the process, known as hydraulic fracturing, involves pumping water, nitrogen and chemicals into the ground at high pressure in order to cause a series of cracks and free up natural gas.
She says drilling that was done in 2003 has caused her water supply to be contaminated with methane gas.
Ernst can fill a bottle with water from a hose, wait a couple of minutes and then light the water on fire.
She's suing Encana, Alberta Environment and the Energy Resources Conservation Board for (m) millions of dollars in damages.
The industry says the drilling process is safe and that the contamination occurred from naturally occurring methane nearby.
Ernst says she knows what she's up against, and her chances of winning her legal battle are slim.
But she vows to fight it out to the end and says she will not settle out of court because she wants the truth about hydraulic fracturing to be known.
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