Airstream PNEG-339 service manual FAN Propellor Removal and Installation, Threaded Bushing Holes

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SERVICE

FAN PROPELLOR REMOVAL AND INSTALLATION

The fan propellor is secured to the motor shaft by the use of a taper- lock bushing, motor shaft key and three cap screws.

CAUTION: Although the taper-lock method of retaining the propellor onto the motor shaft is simple, it is essential that the following points be read carefully and fully understood. Improper installation can cause a loose flying propellor, and result in serious injury or death.

THREADED BUSHING

HOLES

The threaded holes within the bush- ing are provided for disassembly purposes only. Do not attempt to use these holes for reassembly. They will not allow the parts to lock onto the shaft thereby causing a hazard- ous operating condition.

CLEARANCE HOLES

When reassembling parts, the cap screws must be installed through the untapped clearance holes as shown. This will cause the propellor to be pulled forward onto the ta- pered bushing, thus locking the parts securely onto the motor shaft.

When fan servicing requires re- moval and installation of the propellor, make sure the propellor is removed and reinstalled properly.

1.LOCK OUT the fan power supply, and REMOVE the fan guard and the venturi, as re- quired on some models.

Key

2.REMOVE the three cap screws from the clearance holes in the taper-lock bushing.

3.INSTALL two grade 5 cap screws into the threaded holes in bushing. TURN caps by hand until they bottom against the front surface of the propellor.

4.BLOCK propellor to prevent it from turning, and gradually TURN the cap screws (up to 1/4 turn at a time) until the propellor breaks loose from the bushing and motor shaft. Carefully RE- MOVE bushing and propellor. With the propellor free from the bushing, a wheel can be used to PULL the bushing off of the motor shaft. REATTACH bush-

Capscrews installed through threaded holes of bushing

Fan Hub

Split Taper Bushing

Fan blade installation

ing onto propellor to prevent the loss of parts.

Note: During manufacture the propellor and bushing on the 26" and 28" solid aluminum blades are bal- anced together, and are marked with two small dots to identify their origi- nal alignment position. CHECK the bushing and propellor to make sure they have alignment marks. MARK the alignment of the propellor and bushing, if necessary.

Crowley blades have a keyway to prevent any misalignment of the propellor and bushing. Alignment marks are on the back of the fan hub assembly. To replace one of the blade fins, alignment would be nec- essary, however, this is not recom- mended. In most cases, the com- plete propellor should be changed.

Capscrews installed through threaded holes of bushing

Fan Hub

Split Taper Bushing

Fan blade

removal

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Contents Ryer Operation Page Table of Contents Series Dryer Operation and ServiceWarranty Dryer Operation Roof WARNING, Operation & SafetySafety Alert Symbol Roof Damage Warning and DisclaimerSafety Alert Decals Safety Precautions Dryer Control Panel Moisture Control SwitchMoisture Control Thermostat FAN Switch Control Power SwitchDrying Mode Switch Load Auger SwitchDryer Power Stop Switch Dryer Power Start SwitchLOW Speed Metering Roll Potentiometer Setting the OUT Grain Timer Setting the DRY 16, Cool 17 and Unload 18 Batch TimersElectronic Monitoring Control System Dryer Safety Circuit Setting the Load 20 and Unload 21 DelaysUtilizing Bushel Counter Safety Circuit Shutdown Messages PRE Season Inspection Dryer PRE Start ChecksONE Speed Operation Load AugerMetering Roll Operation Burner Test Fire Burner SafetyDryer Shutdown Staged Batch CheckEmergency Dryer Start UP Continuous Flow and Continuous Batch Start UP ProcedureContinuous Flow Operation Staged Batch Operation Dry cycle FAN & Heater Switch SettingsFull Heat Dry & Cool Series Batch Timer SettingsFull Start UP Check Quick Start UP ProcedureFilling the Dryer Starting the Dryer Adjusting the TemperatureFull HEAT-CONTINUOUS Flow Operation Full Heat Series Continuous Flow Metering Roll SettingsAdjusting the Moisture Control Quick Start UP Procedure Series Service Guide Seasonal Inspection and Service ServiceLube Procedures Leaks. See page 16 for burner Suggested LubricantsThreaded Bushing Holes FAN Propellor Removal and InstallationClearance Holes FAN Motor Removal and Installation Heater Parts Removal and Installation Main Controls Metering Roll ServicingHOW to Clear a Jammed Metering Roll HOW to Determine a Metering Roll ProblemService Tool Page Page Page Page Page Page Page Page Page Page Trouble Analysis Procedure An over temperature condition has occurred inside the left Service Service Service Quick Reference Guide Page Page 1004 E. Illinois St., Box Assumption, IL Phone Fax November

PNEG-339 specifications

The Airstream PNEG-339 is a highly regarded model in the realm of agricultural storage and handling equipment, specifically designed for grain management. Its innovative features and robust technologies make it a valuable asset for farmers and grain handlers seeking efficiency and reliability.

One of the primary characteristics of the PNEG-339 is its seamless construction. Built with high-quality materials, the unit is engineered to withstand the rigors of outdoor environments while providing durable protection for stored grains. The design minimizes maintenance requirements, ensuring that users can focus on their core agricultural operations without the distraction of frequent repairs.

The PNEG-339 is equipped with advanced aeration systems that enhance the preservation of grain quality. This technology allows for optimal airflow circulation, reducing moisture levels and minimizing the risk of spoilage. By maintaining the ideal conditions for grain storage, farmers can ensure better yields and profitability.

Another notable feature of the PNEG-339 is its scalability. This model can easily be integrated into existing grain handling systems, accommodating various storage capacities. Whether managing small-scale operations or large agricultural enterprises, the PNEG-339 offers flexibility in design and implementation, making it suitable for diverse agricultural needs.

The unit also boasts user-friendly controls and monitoring systems, allowing operators to manage grain conditions efficiently. Real-time data and automated alerts assist in maintaining optimal storage conditions, thus reducing labor costs and enhancing operational efficiency. As a result, farmers can make informed decisions quickly and effectively.

Additionally, the PNEG-339 incorporates energy-efficient technologies that contribute to sustainability in agriculture. By utilizing energy-saving components, this model not only lowers operational costs but also aligns with the growing emphasis on environmentally responsible farming practices.

Overall, the Airstream PNEG-339 stands out as a top-tier choice for grain storage and handling. With its durable construction, advanced aeration systems, scalability, user-friendly controls, and energy efficiency, it meets the demands of modern agricultural operations. Its design and functionality reflect a commitment to quality and performance, making it an essential tool for those in the agricultural sector aiming to enhance their productivity and maintain the integrity of their grain stores.
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