Tech Tips

Dumping Chip Bin

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Chip Truck

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rd-septic-pumper

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Filtration

Hydraulic Filtration and Contamination All hydraulic systems have a common need for protection from harmful contaminants. Good contamination control means cost effective filtration. Filtering out the particles large enough to be harmful to your system prevents damage and allows the longest possible equipment life. Minimizing maintenance costs through good contamination control practices requires...

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Leak Testing Hydraulic Cylinders

Broken and Bent Ram Shafts More often than not when the threaded stub (which holds the piston in place) breaks, we can install a larger grade (8) eight bolt to hold the piston to the chromed shaft. Great savings can be realized using this repair method. P.S.: We have straightened a countless number of chromed shafts over the years. So bring your bent shafts in for us to straighten and more than...

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Trailer Safety

Safety Facts and Suggestions for Trailer Loads or Towing 1. Make sure you always have an emergency road side kit, extra light bulbs, and fuses. Also, always have a working jack. 2. Always follow recommended inflation pressures. A good rule of thumb for safe tire tread is a minimum of ¼ inch depth. Inspect tires for signs of dry rot. A tire with dry rot is not dependable. Remember to have a...

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Synchronizing Cylinders

The following is an interesting article about a problem that has a great potential for damaging equipment that utilizes dual hydraulic cylinders that must act together. Problem: A dump truck owner noticed that his truck bed wasn’t raising evenly. One cylinder was not extending as far as the other, placing a lopsided load on the truck. He inspected the cylinders and other components for...

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Starting New Pumps

Starting Up New Pumps and Hydrostatic Transmissions for the First Time For long life and top efficiency, contaminants must be removed from your hydraulic system. Clean (flush) all hoses, fittings, reservoirs and components with clean, high flash point (hard to ignite) solvent. Blow dry with shop air. Fill the reservoir with clean manufacturerís recommended hydraulic fluid. The inlet suction line...

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Restarting a Hydraulic System

Restarting A Hydraulic System That Has Been Repaired After A Failure. Important questions to ask and answer before restarting a repaired system. Has the cause of the failure been identified and repaired? If NO, investigate further. Too often components are replaced without really identifying the cause, thus another failure is almost assured. Could contaminants have entered the system when it...

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Pump Selection

Pumps: The “muscle” of a fluid-power system; converting mechanical energy to fluid form. There are six basic considerations in evaluating and selecting a hydraulic pump. They include these points: Pressure rating: Based on the limitations of the pump from damage and leakage due to excessive pressure as well as the limitations of downstream components; it is a major consideration in...

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Piston Type Pumps

Starting Up New Pumps and Hydrostatic Transmissions for the First Time For long life and top efficiency, contaminants must be removed from your hydraulic system. Clean (flush) all hoses, fittings, reservoirs and components with clean, high flash point (hard to ignite) solvent. Blow dry with shop air. Fill the reservoir with clean manufacturer ís recommended hydraulic fluid. The inlet suction...

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Overheated Bearings

The most common reason for an overheated pillow block bearing is over-packing it with grease. The churning lubricant produces heat. As speed increases, so does the heat. Adding more grease only worsens the problem, and, you run the risk of blowing out a seal. Excess grease will usually purge through the seals and the bearing will run cooler. In nasty environments (gravel pits, fertilizer...

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Noise

Ever wonder what that noise in your hydraulic system is? Here are a few possibilities to consider: Cavitation. Check the pump for clogged or blocked air vents and intake lines. Follow manufacturer’s recommended viscosity for the pump. Dirty Filter. Periodically check all filters. Also match filter capacity to the pump. Pump is exceeding maximum rpm. System has air in it. Tighten suction...

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Leak-Free Connections

Ever notice how an oil leak attracts dirt? As the leaking continues the oily mess grows. One of the primary sources for leaks is a poor fitting connection. Leak-free hydraulics has always been desired but few know that the solution has been available for some time. Manufacturers are slowly eliminating problems which could have been prevented over 20 years ago. Oil leak prevention has a friend....

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Hydraulic Troubleshooting

Occasionally we are all frustrated with our apparent lack of knowledge or understanding of a particular operating system. In truth, every one of us who own and operate equipment can understand our hydraulic systems we use if only we had time to learn and dive into them. With this idea in mind we decided to help those who will take a few moments to read further. Most actuators are either rotary (...

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Hydraulic Pump Installation

The number one enemy of hydraulic systems is contamination. When replacing a pump, all filters should be replaced or cleaned and the system oil checked for cleanliness. Replace dirty or contaminated oil. To not do so will increase wear on all components of the systemincluding hydraulic motors! Pump rotation is extremely important. Pump damage will occur if the rotation is in the wrong direction....

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Hydraulic Hose Installation

Hydraulic hose failures take several forms: failure of the cover and wire reinforcement, pulling loose from the fittings, bursting from over-pressures, and abrasion. When selecting hose for use on an application, itís essential to know the system pressure, including pressure spikes. Pressure spikes greater than the published working pressure will shorten hose life and must always be taken into...

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Hydraulic Accumulators

Accumulators and their functions may be the least understood component of a hydraulic circuit. Versatile, ruggedly built for durability, long life and simple in design, hydraulic accumulators are able to solve numerous problems or enhance your hydraulic system. Some typical applications include clamping shaker heads, loggerís and chipperís self-loader grapples, softening hydraulic motor starts,...

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Diesel Linked to Cancer

Diesel linked to Cancer: The EPA Thinks So Many products today are said to be linked to cancer, as time passes this list grows. The Environmental Protection Agency would love to add diesel emissions to this list and banish the petroleum diesel engine. It took a decade and several drafts for the EPA to get its scientific review panel to approve a report that says there may be a link between diesel...

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Gettin’ Hitched: Hook up and Go

Are you trailer savvy? Whether it is taking a boat to the lake or hauling farm equipment here are a few things to make the trip safe. Weight is the main factor in trailer safety. The total weight affects the sizes of safety chain, coupler and hitch balls as well as the brake type. There are two types of trailer hitches. 1. Weight carrying hitches connect the towing vehicle to the trailer and put...

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Fuel Farming

Several times in the last century, there have been fuel shortages in the U. S. Although a solution is found, the problem continues to reoccur which in turn makes our country vulnerable. Currently the United States imports 53% of its petroleum. This number is predicted by the U.S. Department of Energy to skyrocket to 75% by the year 2010. Congress saw the danger of relying on foreign oil and in...

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Contamination

The useful life, performance and reliability of a hydraulic system can be directly related to the contamination level of the fluid. Understanding where contamination comes from is a major step towards getting the most from your hydraulic system. What enables contamination? Opening the breather cap to add oil or to check the fluid level. Contaminants are frequently found in newly assembled hoses,...

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Heat and Hydraulics

Heat and Hydraulics: Keeping it Cool (An explanation of why it is important to run your hydraulic system as cool as possible and near the recommended temperature range) Hydraulic oils are intended to lubricate and do the work at elevated temperatures. It is the sealing and rubber components that can ít withstand excess heat. Because of heat, seals become hard and brittle over long periods of...

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Basic Hydraulics: Pump Volume

A pump is sized by how much oil is moved from the intake port to the outlet port per revolution. This size is described as CIR. (Cubic Inches per Revolution). Also, the size of a pump can be described in terms of GPM (Gallons Per Minute) at so many RPM (Revolutions Per Minute). The pump depicted below moves hydraulic oil around the outside of the gears from the inlet port to the outlet port....

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Basic Hydraulics: Jacks & Pressure

Pressure = force (in pounds)/Area (square inches) We describe pressure as: X amount of PSI, Example: A round rod 1 1/8 inches in diameter has about 1 square inch of surface if stood on one end. Pushing with a force of 10 lbs downward, we would be exerting a pressure of 10 lbs per square inch (10 PSI). Now suppose we exerted the same downward 10 lb force on a round rod with a diameter of .18...

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Basic Hydraulics

To help understand some basic concepts of hydraulics in relation to our use of machines using hydraulics to do work, we will do a series on basic hydraulics and understanding of principles and terms using graphics and text to help us see the principles applied. Machines were invented to help man do work. One can easily relate to a machine that has helped man produce food. Take for example the ox...

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Hydraulic Terms

We have compiled a comprehensive list of commonly used hydraulic terms which may prove helpful in purchasing, troubleshooting and repairing your hydraulic unit. Accumulator – A container in which fluid is stored under pressure as a source of fluid power. Actuator, pneumatic/hydraulic – A device in which power is transferred from one pressurized medium to another without...

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Hydraulics: An Overview

R & D has published a number of newsletters relating to hydraulic systems. Because of the enthusiastic response we are publishing a series of articles that will walk you through basic hydraulic systems. They will familiarize you with a variety of components available for design or customizing a system that fits your special needs as well as help identify and correct problems. Apparently...

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Clamp Style Shaft Collars

Clamp Style Shaft Collars

Clamp-style shaft collars are a simple design with easy installation...

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