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Protection scheme in propane cylinder replacement for forklift trucks

Replacing forklift truck's propane cylinder should be loaded or converted only by trained staff using suitable protection schemes. Catch on any and all of your company's schemes relating to propane movement. If your company has no scheme for replacing cylinders, a pointer will require to be noted and training will require to be executed to guard all implied in cylinder replacement. Communicate your boss instantly if you have any propane protection involves or problems. Not ever try to convert or load a cylinder if you have not been correctly trained to manage. While the replacement array just gaunlets and eye safekeeping when carring out propane transfer pursuities, including combining, discombining or replacing a cylinder. Keep away from totching with liquid propane, as it can make frostbite.

Begin the transfer by displacing the flow out cylinder. You will require to turn the forklift engine off and arrange the parking brake. Terminate the cylinder's operation valve by turning it clockwise. Break the female quick-connect fitting from the male quick-connect fitting by turning it counterclockwise. Break the toggle switch that protects the propane cylinder to the forklift. Take away the cylinder from forklift, using usual raising procedures.

Previous to rising the new full cylinder, keep watch cylinder for suitable specification for forklift use. Keep watch cylinder for cracking, corrosion, concaving, protruding, fire damage, or proof of irregular utilization to the range the cylinder is likely to be debilitated considerably. Keep watch cylinder for current inspection. Keep watch the valves, valve protection and bottom ring. If the cylinder fails any part of this inspection, DO NOT USE IT and contact your propane supplier about the defective cylinder.

Once the new cylinder has passed the visual inspection, lift the filled cylinder using proper lifting techniques and place it on the forklift with the locating pin properly inserted through the locating pin hole in the cylinder's neck ring. Reconnect the toggle clamp and be sure the clamp properly secures the cylinder. Make sure the propane hose is not cut or chafed and the gasket and O-ring are properly installed in the male quick-connect fitting. Connect and tighten the male and female quick-connect fittings. Slowly open the cylinder service valve by turning counterclockwise. Check for leaks using an approved leak-detector solution. Also listen for a hiss and smell for propane. Make sure the propane hose or cylinder does not extend beyond the forklift's sides or rear. Make sure the propane cylinder is properly secured against movement. Start engine and resume operation.

Store propane forklift cylinders in a location set forth in your local fire code and the cylinders must be secured against tampering and damage. Empty cylinders can be stored upside down to identify they are used. Do not store cylinders or park propane forklifts in areas of excessive heat or near sources of ignition. Store propane cylinders and even unattended forklifts with their service valves closed.

With training and having a procedure in place will ensure safe cylinder exchange for your forklift trucks. Recorded training will also ensure all employees that must exchange cylinders have proper training and are qualified to do so.

About the Author

Two PVC valves?

On a Chevrolet truck with a V8...

One valve cover has a PVC valve and the other a push-in breather. Would it hurt to put a second PVC valve in so I have one on each side and run 3/8 hose to a T fitting then to the carburator? Good/Bad/Wouldn't hurt?

I own a shop, and understand the system. You must have a filter on one side that allows air to flow into the crankcase, while a metered (PVC) amount is pulled through the engine for a complete evacuation of the crankcase. If you tie both ends together, you would have no air flow through the engine. What it would do is; build up pressure inside the engine, and force the oil out every seal, and crack in the engine. In othe words, it would use oil in a bad kind of way. Air must enter the engine, travel through the engine, and go back through the combustion side of the engine, and exit out the exhaust system. The vacuum inside the crankcase is a different system than the combustion side. If an engine does not create the correct amount of vacuum inside the crankcase, the piston rings will not seal as they should, and allow combustion to enter the crankcase building pressure. The PVC valve is a metering check ball that allows air to flow one way, but not the other, thus hooking a hose between the two sides will not allow the engine to ingest fresh air from any where. The vent cap for one side is a filter, and allows the fresh air to enter the engines crankcase. The air travels through the engine and evacuates the blow by gases from the piston rings. Equal amounts of pressure on both sides of the rings is what keeps the gases from just blowing past the rings. A pressure is actually built up between the top, and the bottom rings that make the rings expand and seal off even better. Upset this pressure on either side of the rings, and you have an engine that uses oil. It will either burn the oil, and/or throw the oil out of the engine. Its not really complicated how the system works, but disrupt the flow, or not have an equal amount of pressure on both sides of the piston rings, and you will have an unhappy engine. This applies to stock engines that come from the factory with a PVC system.
Glad to help out, Good Luck!!!

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Pressure Systems International has added new green Thru-T and green striped delivery hoses to its Meritor Tire Inflation Systems to illustrate the environmental benefits of the product.

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