Repair And Fix it

Before you can properly replace an E-ring, you will need both snap ring pliers and a screwdriver to help tighten and secure the E-ring to your John Deere product. In addition, you will need a company-issued plastic cap that will be placed on top of the E-ring to keep it protected from corrosion and other harsh elements. You will also need the actual E-ring.

Start by locating the center of the hubcap of the tire you would like to place an E-ring on. There will be a hole where the cap of the ring should be. Use your fingers to place the E-ring snugly into the space that connects the axle spindles to the front wheels of the vehicle. Once it is in place, simply rotate it clockwise until tight. You can use either snap ring pliers or a screwdriver to tighten the ring further. After the ring is tight, place the plastic cap on top of it, locking it into place to prevent wear and tear.

If you are planning on replacing your old E-Rings, you will have to first remove the ones that have either worn out or rusted. After removing the protective plastic cap of an E-ring, grab a pair of snap ring pliers. You will find two groves next to the E-ring. Place the ends of the pliers into these grooves and squeeze to pop the E-Ring out. Proceed as you would for replacing a missing E-ring.

While replacing an E-ring on your tractor is a relatively simple procedure, it is important to use proper safety precautions while you are working with heavy machinery. Always make sure your John Deere tractor or lawn mower is turned off while working on it. Even though the E-ring is not an electronic or motorized part of the tractor, the machinery can still move unexpectedly, potentially harming you and any one else nearby.

O-rings, like other parts in the automobile engine, sustain high temperatures on a continuing basis, and must hold their seal over a long period of time. Viton rings specify resistance to temperatures up to 200 degrees Celsius, or 392 degrees Fahrenheit. According to DuPont, their o-rings display a maximum continuous service temperature of 204 degrees Celsius.

Volume change, or swell, denotes movement in the physical nature of the o-ring, caused by the extreme heat of the engine. In measuring the ability to hold a seal and not leak, Viton must be resistant to most swell. According to test results reported in Problem Solving Products, after 100 hours in air at 150 degrees centigrade (a temperature equal to or greater than a typical engine), Viton o-rings retained more than 90 percent of their original sealing force.

One specification for o-rings involves the hardness of the substance, which relates to its ability to withstand adverse forces in the engine. A Shore (Durometer) hardness test remains a standard for assessing this specification, with the Shore A scale being used for o-rings. Measurements range from 0 to 100, with the higher the number, the harder the substance. According to Marco Rubber, the following are the results for this specification: ETP o-rings 78, GLT o-rings 75, GFLT 73, B 75 and F 79. To put this item in perspective, SubsTech lists shoe heels as a 70 and shoe soles as an 80.

According to MatWeb, tensile strength measures the force per unit area (MPa) necessary to break a substance, and tensile elongation measures the percentage increase in length before breaking. For this specification, ETP o-rings measured a tensile strength of 17.9 and an elongation of 145 percent. Other Viton o-rings rated from 13.6 to 17.6, with elongation ranging from 140 to 240 percent.