Oil seals (Range Rover 3)

General remarks

Always replace oil seals (cuffs) with new ones if the seal is removed. (when only the seal was removed and when the seal was removed as part of an assembly unit). NEVER install seals that have been improperly stored or show signs of abuse, such as hanging from a hook or nail.

• Before installation, carefully inspect the seal to ensure that it is intact and free of foreign particles.
• The surface on which the working edge of the cuff will operate must be smooth, without scratches and burrs. The part mating with the cuff (shaft) must be replaced if its surface on which the sealing occurs does not meet this requirement.
• During installation, protect the cuff from damage by sharp edges. Insulate the surface that may damage the cuff during installation using a process sleeve or wrap it with tape.
• To avoid damage to the working edge of the cuff during start-up, lubricate it with the recommended grade of grease. If the cuff has two working edges, fill the space between them with grease as well.
• If the seal has a spring, make sure that it is installed correctly. Install the seal so that its working edge is directed towards the liquid being sealed. Then carefully move it on the shaft towards the working journal. Use technological bushings to protect the working edge of the seal from damage by sharp edges, threads or splines. If there is no technological bushing, use insulating tape to protect the edge of the seal from damage.

• Lubricate the outer diameter of the seal with grease, direct the end of the seal into the housing bore and press the seal into its seat. Use a suitable mandrel to press it in to prevent the seal from skewing. In some cases, it is advisable to first press the seal into the housing and then install the shaft. Do not allow the weight of the shaft to be supported by the seal.

• Use the recommended tool and accessories to install the cuffs. If you do not have the recommended accessory, you can use a piece of suitable pipe, its outer diameter should be approximately 0.4 mm smaller than the outer diameter of the cuff. If a hammer is used to press the cuff, work with it VERY CAREFULLY.
• Press the cuff to its full depth until it stops against the ledge of the housing; if the bore for the cuff is made without a ledge, then press the cuff flush with the housing. When pressing the cuff, make sure that it is not skewed.