Aurora of America 342A, 341A, 344A To base 73 with capscrews, Connect electricity to the motor

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Secure support (41) to bracket (35) with capscrews (39) and washers (40). Frame sizes 143 thru 184-JM Model 341A only.

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 341A-342A-344A

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 re-use old gaskets or seals. Failure to follow these instruc- tions could result in serious personal injury, death or proper- ty damage.

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 Start-Up Hazard

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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Contents Service Psi at Temperatures225F 107C Pump is rated at a maximum of 175 psi at 150F. DoRepairs Be reusedImpeller Disassembl YReassembl Y Ily cut the flexible cup during reassemblyConnect electricity to the motor Starting Pump After ReassemblyTo base 73 with capscrews Drive Ring Model 342A List of Parts Model 341A List of PartsModel 344A List of Parts RingModel 341A 74 9A 51A

342A, 344A, 341A specifications

Aurora of America has emerged as a key player in the aerospace industry with its advanced aircraft models, namely the Aurora 341A, 342A, and 344A. Designed for both commercial and specialized applications, these aircraft combine cutting-edge technology with robust performance characteristics.

The Aurora 341A is a versatile aircraft that showcases an impressive blend of speed and fuel efficiency. Its sleek fuselage is constructed from lightweight composite materials, which not only reduces weight but also enhances aerodynamic performance. One of its standout features is the innovative wing design that incorporates winglets, improving lift and reducing drag. This facilitates impressive short take-off and landing capabilities, making it ideal for operations in diverse environments, such as remote airstrips.

Next in line, the Aurora 342A takes versatility a step further. This aircraft is equipped with state-of-the-art avionics and a fully integrated flight management system. Pilots benefit from advanced navigation aids and real-time data analysis, increasing situational awareness during flight. The 342A is also designed to accommodate various configurations, making it suitable for cargo, medical evacuation, or passenger transport. This adaptability ensures that operators can modify the interior to meet specific mission requirements.

The Aurora 344A represents the pinnacle of aerospace innovation within this series. It features an expansive cabin space coupled with superior passenger comfort. Advanced noise-reduction technologies and climate control systems contribute to a tranquil flying experience. Furthermore, the 344A is powered by next-generation turbo-fan engines that provide enhanced performance with reduced environmental impact. The engines comply with stringent emission standards, ensuring that the aircraft is not only efficient but also eco-friendly.

All three models share a commitment to safety, equipped with the latest in redundant systems and active safety features. Ground proximity warning systems, collision avoidance systems, and comprehensive emergency protocols are standard. The combination of these features makes the Aurora of America 341A, 342A, and 344A not just aircraft, but reliable partners for operators across the globe.

In summary, the Aurora 341A, 342A, and 344A exemplify the potential of modern aerospace engineering. With a focus on efficiency, adaptability, and safety, these aircraft stand poised to redefine air travel and mission versatility for years to come. Whether for commercial use or specialized missions, the Aurora line offers an exceptional solution tailored to meet the demands of today's aviation landscape.