Do not use scissors or hack saw blade etc. The gland packing should be cut with a sharp knife to avoid fraying of the edges. Compress with the gland to ascertain that it goes inside evenly. function go3() You guys are right. There is no single gland packing that can handle all kinds of fluid or which is suitable for all types of valves and applications. What part of GALE WARNING did you not understand? amazon_ad_width="728"; Also sometimes the packings do not go in the stuffing box spaces easily and they have to be hammered to make them a little thinner thus elongating them in return. } }. They’re made of graphite-impregnated aramid fiber and are for use in pumps and valves. function go2() Whatever size the item or package will be when it’s shipped will be what you input here, including any extra padding or wiggle room you choose to have. Otherwise it would seize the shaft leading to overheating and burning of the packing, as well as increasing the load on the shaft and the motor. function go5() function go4() Do you recommend using the regular flax packing or the Gore graphite packing. There are two methods of cutting the gland packing, the first one is straight or at 90 degrees i.e. In case it is not possible to smooth the surface, the sleeve must be changed at the next possible opportunity. All Rights Reserved. Modern variations on the … This must be considered and an appropriate clearance should be provided. Info - OEM Shaft Replacement Guide Replace Your OEM Shafts Properly! amazon_ad_width="728"; } The selection of gland packing is a very important part of the marine engineer’s job. The drivetrain starts at the transmission and includes everything through the end of the propeller shaft – including couplings, drive plates, the marine stuffing box and shaft packing, or marine shaft seal, the flex couplings, the cutless bearing and more. Gland packing once used must not be reused and never try to reverse a gland packing as the old packing must have lost its properties in service. It is also due to the fact that training material is not available to the junior engineers when they join this field and by the time they come up the ranks they are used to the idea of wrong working practice. { I have a 2" shaft and just converted to Gore packing and used 5/16". location = document.selecter2.select2.options[document.selecter2.select2.selectedIndex].value I should just measure the gland and forget measuring the packing. Inboard Sizing: Choosing the right propeller for your boat requires several pieces of information to allow us to give you the best suggested propeller size for your boat and engine … Do not attempt to stop the leakage entirely because it would look all right for ten or fifteen minutes, but the moment you turn your back and are busy with some other work, the gland packings would burn triggering all the smoke alarms in that area and the leakage would flood your bilges. It is most likely 5/16" but could be 1/4" or 3/8", if you back off the packing nut completely so that you can see the end of the stuffing box you can measure the space between the inside bore of the packing gland and the shaft. In places where there is an accessibility problem it is best to cut the gland packing straight. However the hammered and thinned packings would again gain their width after being compressed. } Okay, here is a really basic one. You adjust the size, somewhat, anyway. For example if the shaft is of 50 millimeters diameter then the circumference is given by the formula P = Pi x Diameter. Howdy all. Not only is it displeasure to the eyes it is also a work, health, and fire hazard. Packing the drive shaft stuffing box; If this is your first visit, be sure to check out the FAQ by clicking the link above. Fit each packing one by one with lots of lubricant and do not forget to stagger the same by 90 degrees each. COMPRESSION of the packing material around the shaft over a short distance (Usually about 1 shaft diameter in length). Choosing the right size moving truck rental is one of the most critical aspects to having a safe and pleasant DIY move. Buck Algonquin Flax Packings Square Braid Construction & Dripless Moldable Packings available for your marine shaft packing needs. Have prop shaft out, gland apart. But generally the following sizes of the gland packings are recommended for the different shaft sizes as follows: But the above is only a guide line and it varies from manufacturer to manufacturer. This negligent attitude results in leakage and scored shafts. (adsbygoogle = window.adsbygoogle || []).push({}); Okay, here is a really basic one. Start by measuring the distance from the horizontal mounting point on the bow to the waterline, then add 20" to this measurement. { amazon_ad_link_target="new"; Every shaft – whether it be graphite or steel – has a certain amount of torque. Cut the gland packing to the correct size and give a little clearance if using natural fibers like hemp and jute which would swell in contact with water. Once you determine the correct size, write it down in your maintenance log, or somewhere. amazon_color_logo="FFFFFF"; { As a rule hammering should be avoided as it damages the gland packings and should only be resorted to in an emergency, when the correct size packing is not available. I bought 2' sections of 1/4" and 3/16", hope one of them are right! Packing Type – Size by cross-section and length in feet. The new packing is what seals the shaft. "The solution to this problem, when found, will be obvious.". Before you get started, you will need a couple of wrenches to loosen and tighten the nuts. They just have to be twisted to get a grip and then the packings can be pulled out. Order your Marine Shaft Packing and save today. Inboard Prop Sizing: Allow the experts at Propeller Depot to complete your free inboard … Also, I had two pieces of packing in there, was reading somewhere there should be four. Buck Algonquin Shaft Packing available at Propeller Depot. amazon_ad_height="90"; The following are the cautions and the instructions while installing new gland packings. If the packing is too big, you squash it a bit so that it will fit into the housing. The likelihood of a 2006 needing new packing is slim to none. Get the store that sells the Gore packing to send/lend you a small sample to check the fit. (adsbygoogle = window.adsbygoogle || []).push({}); function go1() location = document.selecter4.select4.options[document.selecter4.select4.selectedIndex].value skive joint. Radial/axial motion and misalignment: Most mechanical seals tolerate very little radial movement or misalignment, and little to no axial movement. if (document.selecter1.select1.options[document.selecter1.select1.selectedIndex].value != "none") What Capt. The figure obtained must be divided by 2 to get your gland packing size. Advantages compared to other sealing methods: • Lower cost than a PSS or similar "maintenance-free" stuffing box replacement. Make sure you know the correct type of golf shaft to replace your current shaft with. After the tightening slackens the nuts and finger tighten. This factor must also be considered in giving some gap. amazon_ad_title="BoaterEd Store"; //--> In this article the subject has been discussed in brief and it is hoped that it would be useful to the new marine engineers as well as the practicing marine engineers. It is prudent to consult the manufacturer’s manual about the type of gland packing to be used. It is safe to do this as the packing will stay in place … I've replaced packing countless times. All Buck Shaft Packing are made in the United States of America, and can be shipped across the Globe. amazon_ad_logo="hide"; { With few exceptions, these are specifically matched to the shaft diameter, a 2-inch shaft, for instance, utilizes three 3/8-inch packing while 1-1/2-inch shaft utilizes 1/4-inch packing. Sometimes in sea water pumps when the packings are not coming out, a little opening of the sea water suction valve would push out the packing with ease due to the water pressure. Bill said, I for one think that's worth a twenty. thanks for your help. For shafts of size 16 to 28 mm diameter the gland packing of size 8 mm is used. Do not use anything coarser than 800-grit paper. ` Shaft speed comparisons Shaft size in inches RPM Speed in FPM 1 1800 450 1 3200 850 1 3600 1050 2 1800 900 2 3200 1700 2 3600 1800 3 1800 1400 3 3200 2500 3 3600 2800 One more very important note is that you really need to use the correct size packing. It's compressed and I don't see any marking anywhere. Knowing the tip thickness will determine whether or not the shaft will fit appropriately into the hosel of the clubhead. Please remember that a little leakage of about ten drops a minute is required for the lubrication and the cooling of the gland packings. Even if off somewhat; shouldn't be off enuff to take you to next diameter of packing. The tightening must be done during the running in process. 5. Simply measure the inner diameter of the bore of the stuffing box and subtract from it the outside diameter of the shaft. The packings must be selected as per the service required. as your prop shaft and then cut away.