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Effective November 1, 2000 Installation of SimsiteŽ Bearings When SimsiteŽ bearings are Press Fit (Stuffing Box, Guide or Sleeve Bearing, and Spider) into the housings, the following should be done: 1.) Chill or Freeze bearings to facilitate pressing the bearings into the housing. 2.) Use a soft mallet to gently press the bearings into the housing. 3.) Housing bores should be true (concentric) 4.) Housing bores should be cleaned and free of any burs. 5.) SimsiteŽ Bearings should be secured with glue and set screws (Make sure that the set screws do not distort the bore of the bearing--See SimsiteŽ Installation Guide) 6.) Start and run the Pump for at least 72 hours immediately after installation.   NOTE:     After installing new SimsiteŽ Bearings, it is important not to leave the pump flooded without running the pump for at least 72 hours. During this 72 hour period, the bearings will expand to the specified operating dimensions. If for some reason, the pump is left flooded but not running for an extended period of time (more than 3 days), the pump must be rotated at least twice a day until it is started.   When SimsiteŽ Guide Bearings are NOT PRESS FIT into the pump casing or bearing housings: Prior to the installation of SimsiteŽ Guide Bearings, the bearing areas in the pump casing or bearing housing should be cleaned and all burrs removed. The bores should be indicated to make sure that they are true (concentric). If the bearing housing bore is not running true, it must be machined before the SimsiteŽ Guide Bearing can be installed. When SimsiteŽ Guide Bearings are not press fit into the pump casing or bearing housings, they are designed with an anti-rotation ring or one or more anti-rotation pins. It is important that there is enough clearance at the outer diameter of the bearing to assure that the bearings are not pinched upon bolt-down of the pump casing or bearing housing cover. It is recommended that a .002 to .005 inch clearance is maintained between the SimsiteŽ Bearing outer diameter and the pump casing. To determine if the SimsiteŽ Bearing is pinched, the bearing must be blued (or chalked), installed in the pump, and then removed for inspection. Upon inspection of the SimsiteŽ Bearing pinching marks should not be evident on the blued or chalked surfaces of the bearing. If pinching does occur, the SimsiteŽ Bearing can be sanded slightly to eliminate the pinching. If pinching persists, then the SimsiteŽ Bearing may require machining. Machining of the SimsiteŽ Bearing is not recommended if the metallic pump casing is distorted, or if there is damage to the bearing housing surfaces within the casing. The pump casing must be repaired or machined instead. The bearing areas in the pump casing should be cleaned after machining and all burrs removed. The clearance between the SimsiteŽ Guide Bearing bore and the shaft or sleeve diameter should follow the guidelines of Table 3 (on Page 6) and should never be less than .010 inches. When SirnsiteŽ Bearings are Not Press Fit (Diffuser) into the housings, the following should be done: 1.) Housing bores should be true (concentric). 2.) Housing bores should be cleaned and free of any burs. 3.) Verify that the bearing is not pinched (i.e. blue or chalk, install, and ten inspect). 4.) Start and run the Pump for at least 72 hours immediately after installation.   INSTALLATION OF SIMSITEŽ SLEEVES: SimsiteŽ sleeves are mounted on shafts with a clearance of between .001 and .002 inches. This clearance prevents the sleeve from twisting and buckling, yet allows easy mounting. A locking device such as a key and/or set screws is used to prevent the sleeve from rotating. NOTE: Simsite sleeves used in conjunction with Mechanical seals for sealing applications should be manufactured from either SimsiteŽ Grade 300 or 302. NOTE: Simsite sleeves used in conjunction with packing for sealing applications should be manufactured from either SimsiteŽ Grade 350 or 375. A graphite based packing should be used with Simsite Sleeves. NOTE: Never soak sleeves in oil or water prior to installation on the shaft -- if a lubricant is necessary use SIMS PERMALUBEŽ anti-seize only.   ASSEMBLY AND TEST CONSIDERATIONS: The alignment of the coupling and the shaft must be checked both cold and warm after assembly. Proper alignment is critical to pump operation and longevity. For ship board installation, all major piping must be loosened to make sure there is no pipe strain, which can cause a pump to fail if not corrected. After the rotating element with SimsiteŽ components is fit into the pump casing and the casing cover has been secured, the rotating element must turn by hand before the pump motor can be started. If for some reason the shaft does not turn by hand, then the pump must be disassembled to determine the problem. Under no circumstance should the pump be started if the rotating element will not turn by hand. In order to maximize the extended pump life that SimsiteŽ components offer, SIMS recommends replacing all rolling element bearings while rebuilding the rotating assembly.   WARNING THE PUMP MUST TURN FREELY BY HAND AFTER ASSEMBLY. IF FOR SOME REASON THE PUMP DOES NOT TURN FREELY, DO NOT START THE PUMP. TAKE THE PUMP APART AND FIND OUT WHY!   [ Pervious Page ] 1  2  3  4  5  6 [ Next Page ]