6.Using a piece of tubing that contacts the inner ring of the First Stage Intermediate Gear Front Bearing (23), press the Bearing onto the shaft adjacent to the small spline of the First Stage Intermediate Gear (21).

7.Using a piece of tubing that contacts the inner ring of the First Stage Intermediate Gear Rear Bearing (22), press the Bearing onto the shaft adjacent to the large spline of the First Stage Intermediate Gear (21).

8.Place the Gear Box Cover Assembly on a workbench with the output end of the Motor Shaft downward.

9.Position the Bearing nearest the smaller spline on the shaft of the First Stage Intermediate Gear above the bearing recess in the Gear Box Cover. Engage the smaller spline of the Gear with the spline of the Motor Shaft Gear while pushing the Bearing into the recess.

10.Place the Gear Box Gasket (20) onto the Gear Box Cover making certain the Gasket fits over the alignment pin in the Cover and fits well around the large, raised alignment hub.

11.Position the Gear Box (18) over the assembly and bring the Gear Box down against the Gasket while making sure the Bearings enter the bearing recesses in the Gear Box. Make certain the alignment pin and hub on the Frame enter the hole and recess in the Gear Box.

12.While keeping the assembly together, turn it over and insert the eleven Gear Box Cover Cap Screws (41) with their Lock Washers (42) through the holes of the Cover into the Gear Box. Tighten the Screws evenly, a little at a time, using an alternating pattern. Use the Screws to draw the assembly together without distortion and without binding.

Motor Assembly

1.The Gear Case Gasket (17) has adhesive on one side of the Gasket. Place one End Plate (7) flat on a clean surface with the face having the channel going from the central opening to the outer edge upward. Orient the Gasket to the End Plate, making certain the cylinder dowel hole openings align, and attach it to the End Plate by bringing the gasket adhesive into contact with the face of the End Plate. Press it flat onto the face.

2.Slip the End Plate, gasket face trailing, onto the spline end of the Rotor (12).

3.Install the Front Rotor Bearing Spacer Assembly (14) and the Front Rotor Bearing (13) onto the splined shaft of the Rotor and against the End Plate. If the Bearing is a tight fit on the shaft, use a piece of tubing that contacts the inner ring of the Bearing and clears the rotor shaft to press the Bearing onto the shaft.

4.While holding the Rotor in a vertical position, grasp the spline in copper–covered vise jaws.

5.Place a Vane (10) in each vane slot.

6.Install new Cylinder Seals (8A) in the grooves in the large hubs of the Cylinder (8).

7.For Series 92N Non–reversible Motors, the direction of rotation of the Motor depends on the relationship of the Cylinder and End Plates. To obtain desired shaft rotation, proceed as follows:

a.Rotate the End Plate until the 17/64” (6.75 mm) through hole (dowel hole) is facing you. Note there is a similar hole extending lengthwise through the Cylinder, and at about 40 to one side of the hole is an air port.

b.Hold the Cylinder upright, facing the dowel hole and with the air port to the right for clockwise shaft rotation, to the left for counterclockwise shaft rotation. Then place it over the Rotor so that the dowel hole in the Cylinder and End Plate are in alignment. For Series 92R Reversible Motors, place the Cylinder over the Rotor so that the dowel hole in the Cylinder and End Plate are in alignment.

8.The Gear Case Gasket has adhesive on one side of the Gasket. Place the remaining End Plate flat on a clean surface with the face having the channel going from the central opening to the outer edge upward. Orient the Gasket to the End Plate, making certain the cylinder dowel hole openings align, and attach it to the End Plate by bringing the gasket adhesive into contact with the face of the End Plate. Press it flat onto the face.

9.Install the End Plate, Gasket side trailing, onto the short hub of the Rotor. Rotate it so that the cylinder dowel hole is aligned with the corresponding hole in the Cylinder.

Insert the Cylinder Dowel (9) to maintain the alignment with the Dowel protruding through the Rear End Plate.

10.Slide the Rear Rotor Bearing (5) on the short hub of the Rotor and against the End Plate. Using snap ring pliers, install the Rear Rotor Bearing Retainer (6) to keep the Bearing and End Plate in position.

11.Position the Motor Housing Cover (1) over the Rear Rotor Bearing and End Plate. Make certain the cylinder dowel holes and porting are aligned correctly. Remove the assembly from the vise jaws.

12.Carefully slide the Motor Housing (11) over the assembled motor and position it against the Motor Housing Cover.

13.Position the assembled Gear Box (18) against the face of the Motor Housing. Make certain the spline of the Rotor engages the teeth of the First Stage Intermediate Gear(21) properly.

14.Install the Housing Cover Cap Screws (2) along with the Washers (4). With the motor running at a slow speed (30 to 40 psig) (267 to 276 kPa) alternately tighten the Screws to 28 to 31ft–lb. (38.0 to 42.0 Nm) torque.

Form P6401 Edition 6

11

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Ingersoll-Rand 92R, 92N manual Motor Assembly
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92R, 92N specifications

The Ingersoll-Rand 92N and 92R series of portable air compressors are robust machines designed to meet the demands of a variety of industrial applications. Renowned for their reliability and efficiency, these models offer a range of features that set them apart in the market.

One of the main features of the 92N and 92R models is their compact design. This allows for easy transport and maneuverability on job sites, making them ideal for contractors and construction professionals. The lightweight construction does not compromise durability; these compressors are built with high-quality materials designed to withstand the rigors of daily use.

Both models are powered by dependable engines, ensuring consistent performance and exceptional air delivery rates. The 92N is known for its impressive flow rates, making it an excellent choice for powering pneumatic tools, while the 92R offers slightly different specifications tailored for varied applications. Users will appreciate the design of these compressors that minimizes vibrations and noise levels, contributing to a more comfortable working environment.

Technologically, the Ingersoll-Rand 92N and 92R incorporate advanced controls that simplify operation and enhance efficiency. The user-friendly control panels enable operators to easily adjust pressure and monitor performance parameters. Additionally, the compressors come equipped with advanced cooling systems that ensure optimal performance even in high-temperature environments.

Another notable characteristic of the 92N and 92R is their energy efficiency. These models are designed to minimize fuel consumption while delivering powerful performance, which is essential for projects that require sustained operation. This not only helps in reducing operational costs but also contributes to a lower environmental impact.

Protection features such as automatic shutdown mechanisms prevent damage to the engine and compressor components, enhancing the reliability of the machines. Furthermore, the accessibility of key components for maintenance and repairs ensures that downtime is minimized, allowing operators to focus on productivity.

Overall, the Ingersoll-Rand 92N and 92R portable air compressors stand out for their reliability, efficiency, and user-friendly design. Both models offer a perfect blend of power and portability, making them indispensable assets for professionals across various industries. With these compressors, users can expect unparalleled performance and an enduring commitment to quality that Ingersoll-Rand is known for.
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