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f <br />A very simple lubrication system is employed in RCS <br />blowers. On the gear end, the gears, the bearings and the <br />seals are lubricated by the action of oil clinger (46). On the <br />drive end, the bottom rollers of the bearings are partially <br />submerged in oil. Splash caused by bearings lubricate the <br />oil seals. Entrance of lubricating oil into the blower air <br />chamber is prevented by the use of double shaft sealing. <br />Lip type seals, located inboard of the bearings in each <br />headplate, effectively retain oil within the sumps. Any <br />leakage that may occur passes into a cavity in each <br />headplate that is vented. In addition, sealing rings are pro- <br />vided on both shafts where they pass through the inner <br />walls of the headplates. These serve to reduce air leakage <br />from or into the air chamber and also minimize oil carryover <br />into the air chamber. They are not sufficiently effective to <br />enable the blower to handle gases, however. <br />The drive end sumps use constant level oilers. As shown <br />in Figure 3, the level adjusting mechanism uses adjusting <br />cross arm and locking nut so to set the oil level at the center <br />of the sight gauge. Located on the side of the end covers, <br />Do not set oilers so that the oil level is above the sight <br />gauge or excess lubricant may cause excessive oil tempera- <br />ture and oil leakage. <br />To fill either of the drive end sumps, remove the top glass <br />reservoir. Fill it with recommended lubricant and place it <br />on its holder and let the bottom empty to fill the sump. <br />Repeat this procedure till the reservoir'oquits filling, and <br />the oil reaches the center of the sight gauge. <br />Filling the sumps should be accomplished with the blower <br />not operating, in order to obtain the correct oil level. Ap- <br />proximate oil quantities required for blowers of the various <br />configurations are listed in Table 3. Do not overfill. <br />The level should never be allowed to fall below the oil <br />level gauge ring when the blower is not operating. It may <br />rise on the gauge during operation, to an extent depending <br />somewhat on oil temperature and blower speed, but it <br />should not be permitted to rise above the oil level gauge <br />ring. On drive end, keep the bottles full. <br />During the first week of operation, check the oil levels <br />in the oil sumps about once a day, and watch for leaks. <br />Replenish as necessary. Thereafter, and occasional check <br />should be sufficient. <br />1pP� <br />SOO IA{ 161 <br />r 1 W YOV :o Y.O M xW . W szo <br />OISCIWI6C AIR IEYPEAAI„RE <br />IAI PEIRMEW 6A PREYIW t"ICANT. <br />Inl WWIL SNC OS. OR EdJ . <br />Figure 4 Oil Chomp Hours <br />The type of lubricant preferred is Roots Synfilm GT ISO <br />220, 320, or 460 synthetic oil or equal. This lubricant has <br />better oxidation resistance at expected higher oil tempera- <br />tures. <br />If the discharge air temperature is less than 22011 F, <br />petroleum base rust, oxidation and foam inhibited pre- <br />mium grade of non -detergent oil of the correct viscocity <br />grade as listed in Table - 2 should be satisfactory. Figure 4 <br />provides guide lines for recommended oil change interval. <br />In a very dusty location, more frequent oil change may be <br />required. Gear end sump is drained by removing plug (22). <br />For draining drive end sumps, remove oiler reservoirs, re- <br />move plugs at the bottom of the oilers. <br />LL <br />w <br />a <br />w <br />300 <br />MOD1L SHC-634 OR <br />a <br />a <br />w <br />EQUAL <br />ISO-220 [SO-320 <br />Figure 5 — Oil Grades <br />ISONG eSt @ 40, C APPROX. SUS @ 100T <br />100 90.110 465 <br />150 135.165 700 <br />220 198-242 1000 <br />320 288-352 1500 <br />460 460 2391 <br />Table 2 — Recommended (M Grades <br />FRAME GEARBOX DRIVE END <br />SERIES <br />PINTS LITERS OUNCES LITERS <br />800-H 16 7.6 8 .24 <br />800-V 2 1.0 8 .24 <br />Table 3 — 01 Fill Ammft <br />7 <br />Figure 5 — Oil Grades <br />ISONG eSt @ 40, C APPROX. SUS @ 100T <br />100 90.110 465 <br />150 135.165 700 <br />220 198-242 1000 <br />320 288-352 1500 <br />460 460 2391 <br />Table 2 — Recommended (M Grades <br />FRAME GEARBOX DRIVE END <br />SERIES <br />PINTS LITERS OUNCES LITERS <br />800-H 16 7.6 8 .24 <br />800-V 2 1.0 8 .24 <br />Table 3 — 01 Fill Ammft <br />7 <br />Table 2 — Recommended (M Grades <br />FRAME GEARBOX DRIVE END <br />SERIES <br />PINTS LITERS OUNCES LITERS <br />800-H 16 7.6 8 .24 <br />800-V 2 1.0 8 .24 <br />Table 3 — 01 Fill Ammft <br />7 <br />Table 3 — 01 Fill Ammft <br />7 <br />