Secure support (41) to bracket (35) with capscrews (39) and washers (40). Frame sizes 143 thru
7.If nameplate (34) was removed, install and attach with screws (33).
8.Wipe the sealing faces of the seat and seal washer clean. Replace pin (61) in sleeve if it was removed during disas- sembly. Apply a film of liquid dishwashing detergent to the washer and bellows of the seal and slide the remaining seal parts onto the sleeve making sure the washer is seated against the seal seat. Check the proper sequence of assembly
as indicated in Figure 1. The shaft sleeve with the seal rotat- ing assembly on it may now be replaced onto the motor shaft. Spring tension will probably prevent the sleeve from remaining in position axially until the impeller is locked against it.
9.Press wearing ring(s) (7 and 16) in casing (6) and bracket (35). Rings should not be hammered into place. Use a press,
or clamp the parts in a bench vise, using wooden blocks to protect the rings. It may be necessary to pin or dowel the rings after assembly if the insert or casing has had rings replaced before, since each reassembly can stretch or tear metal and thereby loosen the fits. If the facilities are avail- able, it is good practice to take a very light finish cut or to ream the inside diameter of the casing rings after pressing to restore roundness. When rings are pressed, they may get squeezed out of shape.
10.Coat the mating surfaces of impeller wear ring(s) (optional -
14 and 15) and impeller (11) with Locktite sealant grade 271. Replace wear rings, using the same care as for the case wear ring(s). If the rings are to be trued on a lathe, do not clamp the impeller so tightly that it is permanently distorted.
11.Carefully replace gasket (10) on motor end of impeller. Assembly key (12) and impeller (11) to motor shaft. Secure impeller with gasket (9B), washer (9A), capscrew seal (9C) and impeller screw (9).
12.Install the two pipe plugs (4) in the pump casing. Position
the gasket (8) and casing (6) against the motor bracket and secure with screws (5). On Model 342A pumps position gasket (72) and set pump assembly in place. Tighten pump
to base (73) with capscrews (39).
13.Replace all relief, cooling, flushings, or drain lines from the pump including compression connections (1 and 2) and tub- ing (3). Replace all grease fittings pipe plugs, tube vents and oiler assembly for oil lubricated units. Connect discharge piping and suction piping, if required. Make sure to install gaskets on the flanged connections. On Model 342A pumps replace plugs (74 and 75) in base elbow (73).
14.Read carefully the section of the manual titled INSTALLA- TION, especially those paragraphs referring to pump and coupling alignment.
15.Connect electricity to the motor.
MODELS
STARTING PUMP AFTER REASSEMBLY
Do not start pump until all air and vapor has been bled and until making sure that there is liquid in the pump to provide the nec- essary lubrication. Without the fluid around it, the seal may be ruined in a few seconds of operation. It is possible that the mechanical seal may drip during the first few minutes to one hour of operation.
Warning: Hot Surface Hazard
If pumping hot water, insure guards or proper insulation is installed to protect against skin contact to hot piping or pump components. Failure to follow these instructions could result in serious personal injury, death or property damage.
Warning: Spraying Water Hazard
When servicing pump replace all gaskets and seals. Do not
Warning: Electrical Shock Hazard
All electrical connections are to be made by a qualified elec- trician in accordance with all codes and ordinances. Failure to follow these instructions could result in serious personal injury, death or property damage.
Warning: Electrical Overload Hazard
Insure all motors have properly sized overload protection. Failure to follow these instructions could result in serious personal injury, death or property damage.
Warning: Sudden
Disconnect and lockout power source before servicing. Failure to follow these instructions could result in serious personal injury, death or property damage.
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