Fybroc Division series 1500 horizontal pumps - MHz Electronics, Inc

4) Lightly coat the impeller sleeve with a suitablelubricant. Carefully slide impeller sleeve throughthe cover, being careful not to chip the stationarysealing face.NOTE: The John Crane 8-D is a friction drivetype of seal, the impeller sleeve and rotary unitshould be lubricated with a soapy watersolution to ease installation without reducing thefrictional drive of the rotary unit.4A) For separate shaft sleeve installation, positionthe cover over the impeller and insert the sleevethrough the mechanical seal stationary insertuntil the hooked end of the sleeve rests on theimpeller hub.5) Lubricate the rotary unit o-rings with a suitablelubricant. Then engage the rotary assembly overthe impeller sleeve. Use a slight twisting motionas the rotary unit is slid down the impeller sleeveuntil it touches the stationary sealing face.6) Install the gland o-ring into its groove on thegland. Then place the gland over the rotatingseal assembly, making sure the gland o-ring is inplace before securing the gland bolts. Be surethat the gland pilot is properly engaged, anddraw up the gland bolts evenly, cross staggeringadjustment of the bolts. The gland bolts shouldbe torqued to a maximum of 10 Ft/Lbs.7) Mount the impeller, cover and seal assemblyonto the power-frame, making sure the impellerthreads are firmly bottomed on the shaft threads.7A) For separate shaft sleeve installation, slide thesleeve, gland, and cover assembly over theshaft until the hooked end of the sleevebottoms on the shaft shoulder. Clamp cover inposition. Insert impeller o-ring (Item 2B) in thegroove on the impeller hub and thread impelleronto shaft insuring impeller hub, sleeve hook,and shaft shoulder are firmly bottomed.8) At this stage check to be sure the impellerthreads are properly seated on the shaft threads.There should be clearance between the coverface and the back of the impeller. If there is noclearance, adjust the shaft forward with theadjusting screws (Item 33A) and reseat theimpeller. (See impeller adjustment section)9) With the impeller threads firmly seated, adjustthe impeller towards the cover (see impelleradjustment section) until the back of the impellerjust touches the cover face.1510) Install the cover o-ring (Item 73) and casing.Adjust the axial impeller clearance to the specifiedvalue in the impeller adjustment section.11) The 8-D seal is self centering and requires noadjustment. Make appropriate piping connectionsto the seal assembly.PACKED STUFFING BOX1) Install the four gland studs into the cover andtighten to 10 ft-lbs.2) Install o-ring in stuffing box extension. Placeover gland studs and check that the stuffing boxextension is seated properly. Secure to coverwith gland nuts and washers, tighten to 10 ft-lbs.3) Place metallic shaft sleeve in cover bore, andinstall two packing rings into the stuffing boxextension. Install the lantern ring followed byremaining three packing rings.4) Check to make sure lantern ring is lined up withflush hole. Damage could result to packing andshaft sleeve if flush water is restricted.5) Install gland ring over gland studs and securewith gland nuts and washers. Hand-tighten thenuts for now. The nuts need to be adjusted whenthe pump is started up.6) Mount the cover assembly and sleeve onto thepower-frame.7) Clamp the cover in position and slide the shaftsleeve towards the bearing frame until it bottomson the shaft shoulder. Insert impeller o-ring inthe groove on the impeller hub and threadimpeller onto shaft insuring impeller hub, sleeveand shaft shoulder are firmly bottomed.8) At this stage check to be sure the impellerthreads are properly seated on the shaft threads.There should be clearance between the coverface and the back of the impeller. If there is noclearance, adjust the shaft forward with theadjusting screws (Item 33A) and reseat theimpeller. (See impeller adjustment section).9) With the impeller threads firmly seated, adjust theimpeller towards the cover (see impeller adjustmentsection) until the back of the impeller justtouches the cover face.10) Install the cover o-ring (Item 73) and casing.Adjust the axial impeller clearance to the specifiedvalue in the impeller adjustment section.11) Make appropriate flush piping connections to thestuffing box extension.