Ingersoll-Rand 1RPNS1-IR User Manual

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16575243

Edition 2

October 2013

Save These Instructions

Air Screwdrivers

1R Series

Maintenance Information

Questions and Answers:

L
lewiscynthiaJul 25, 2025
Why Ingersoll-Rand 1RPNS1-IR Power Screwdriver loses power?
- L
  Lisa LoweryJul 25, 2025
  Loss of power in your Ingersoll-Rand Power Screwdriver can stem from several causes. It might be due to low air pressure; ensure the air supply is at 90 psig (6.2 bar/620 kPa) at the inlet for optimal performance. A plugged air strainer or inlet screen could also be the culprit; clean or replace these components. Similarly, a clogged muffler or exhaust silencer needs cleaning or replacement. Worn or broken vanes require replacement of the entire set. A damaged rear end plate gasket necessitates a new gasket. Inspect the cylinder for wear or breakage, replacing it if cracked or scored. Finally, improper lubrication or dirt build-up calls for cleaning and lubrication of the motor unit parts.
J
James JonesAug 2, 2025
What to do if Ingersoll-Rand 1RPNS1-IR motor stalls before adjustable clutch ratchets?
- K
  kaitlyn67Aug 2, 2025
  If the motor stalls before the adjustable clutch ratchets on your Ingersoll-Rand Power Screwdriver, the issue could be due to improper clutch adjustment or an unsuitable tool ratio for the application; check the clutch adjustment and review the tool's performance against the requirements. Low air pressure at the inlet can also cause this; ensure the air supply is at 90 psig (6.2 psig/620 kPa). Insufficient grease is another potential cause; lubricate the clutch as instructed.
J
Jaime HernandezAug 9, 2025
How to fix a leaky throttle valve on Ingersoll-Rand 1RPNS1-IR Power Screwdriver?
- M
  mark94Aug 9, 2025
  A leaky throttle valve in your Ingersoll-Rand Power Screwdriver can be fixed by addressing the potential causes. If the throttle valve and/or throttle valve seat are worn, install new ones. Alternatively, dirt accumulation on these parts can be resolved by pouring about 3 cc of a clean cleaning solution into the air inlet and operating the tool valve for about 30 seconds, then immediately lubricating the cleaned parts with 3 cc of the recommended oil.
K
Kyle GrahamAug 17, 2025
Why is the adjustable clutch on my Ingersoll-Rand Power Screwdriver disengaging inconsistently?
- J
  Jessica HoustonAug 17, 2025
  Inconsistent disengagement of the adjustable clutch on your Ingersoll-Rand Power Screwdriver could be caused by improper lubrication. Remove the adjustable clutch mechanism, examine the parts, and lubricate as instructed. Another cause might be using the wrong clutch spring, such as a heavy clutch spring on a light torque application; change to a medium or light clutch spring.

Ingersoll-Rand 1RPNS1-IR Specifications

General

Model	1RPNS1-IR
Category	Power Screwdriver
Chuck Size	1/4 in
Free Speed	2, 500 rpm
Speed	2, 500 rpm
Air Inlet	1/4 in NPT

Summary

Product Safety Information

General Safety Warnings

Essential safety precautions and warnings for operating and maintaining the tool.

Lubrication

Gearing Lubrication

Instructions for lubricating the gearing with specific greases.

Disassembly

Tool Disassembly Procedure

Step-by-step guide for disassembling the air screwdriver.

Clutch Disassembly

Gearing Disassembly

Motor Disassembly

Reverse Valve and Throttle Mechanism Disassembly

Assembly

Reverse Valve and Throttle Mechanism Assembly

1RA and 1RT Models Assembly

1RT Models Assembly

1RL Models (C1, C3, 9D, D1) Assembly

1RP Models Assembly

1RL Models (S1, S3) Assembly

1RP Models Assembly (Continued)

Motor Assembly

Gearing Assembly

Adjustable Clutch Assembly

Troubleshooting Guide

Loss of Power Troubleshooting

Common causes and solutions for loss of power issues.

Leaky Throttle Valve Troubleshooting

Causes and solutions for a leaky throttle valve.

Inconsistent Clutch Engagement Troubleshooting

Troubleshooting inconsistent disengagement of the adjustable clutch.

Motor Stalls Troubleshooting

Solutions for motor stalling before adjustable clutch ratches.

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