Aurora of America 341A, 344A, 342A manual Disassembl Y, Impeller

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DISASSEMBL Y

Disassemble only what is needed to make repairs or accomplish inspection. (See Figure 2 for Model 341A, Figure 3 for Model 342A and Figure 3 for Model 344A.)

1.Disconnect and lockout power source to prevent drive unit from being energized during disassembly.

2.Unscrew the two drain plugs (4) from the casing (6). On Model 342A pumps, remove plugs (74 and 75) to drain pump. Also unscrew the two plugs (4) from casing (6).

3.Remove all relief, cooling, flushing or drain lines from pump, including compression connections (1 and 2) and tubing (3). Break suction and discharge connections unless it is intended to remove the power frame or motor assembly and leave casing (6) in the line. On Model 342A pumps, break discharge connections only, unless it is desired to remove base (73). Remove capscrews (39) and lift pump assembly from base (73). Remove gasket (72).

4.On Model 344A pumps, remove the flexible coupling from between the pump and motor. Next unscrew the bolts that hold support(s) (41 and 64) to the base and slide the pump out to be worked on.

5.Remove capscrews (5) and pull casing (6) from bracket (35). Remove gasket (8).

6.Unscrew impeller screw (9) and remove washer (9A), tak- ing care not to damage gasket (9B) or capscrew seal (9C).

MODELS 341A-342A-344A

 

 

C. Impeller and Key Removed.

9. Impeller

wearing

rings (optional - 14 and 15) are pressed

on and must

be cut

off if replacement is necessary. If they

are turned off in a lathe, take care not to cut into the impeller.

10.Slide sleeve (25) with rotating parts of mechanical seal (27) from the shaft. The sleeve should be carefully cleaned to remove any residue that may be remaining in the seal area.

The rubber in seal (27) may have become partially adhered to the sleeve. The sleeve must also be checked for abrasion or corrosion that can occur when fluid residue penetrates between the seal (27) and sleeve (25). The sleeve under the seal may be polished lightly to a 32 RMS finish before reassembly. Do not reuse a pitted sleeve. Pin (61) may be removed if necessary.

CAUTION

The mechanical seal (see Figure 1) is a precision product and must be treated as such. During removal, great care must be taken to avoid dropping any part of the seal. Take particular care not to scratch the lapped faces on the washer or the sealing seat. If any wear of the seal faces is noted, it is recommended to replace with a new seal dur- ing reassembly.

B. Casing, Gasket, and Wearing Ring Removed.

7.Slide impeller (11) and impeller key (12) from the shaft, again taking care not to damage gasket (10) located behind impeller. Remove gasket (10).

8.Wearing ring(s) (7 and 16) are pressed into their housings with an interface fit and must be removed with a puller. New ring(s) should be used for reassembly since it is likely that during removal this fit will be lost. Do not remove wearing rings if not being replaced.

D. Mechanical Seal Removed.

11. On Model 344A pumps, remove capscrews (39 and 62) and washers (40 and 63) to take off support feet (41 and 64). On Model 341A frame size 143 thru 184-JM only, unscrew cap- screws (39) washers (40) and remove support (41) from bracket (35).

12.Unscrew capscrews (32) to remove bracket (35) from frame

(57)or motor on Models 341A and 342A.

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Contents Pump is rated at a maximum of 175 psi at 150F. Do Psi at TemperaturesService 225F 107CRepairs Be reusedImpeller Disassembl YReassembl Y Ily cut the flexible cup during reassemblyStarting Pump After Reassembly To base 73 with capscrewsConnect electricity to the motor Drive Ring Ring Model 341A List of PartsModel 342A List of Parts Model 344A List of PartsModel 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.
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