Limitorque LY Series User Manual

Limitorque
0
50
100
Limitorque
®
LY Series
Installation and Maintenance
for LY 1001, LY 2001 and LY 3001
LMAIM1501
(
Replaces 150-12000)
November 2003
Limitorque Actuation Systems

Limitorque LY Series Specifications

General

Brand	Limitorque
Model	LY Series
Category	Industrial Equipment
Language	English

Summary

5 Installation Instructions

5.1 Safety Precautions

Emphasizes reading the manual carefully before installation or operation.

5.3 Installation Overview

5.4 Torque Switch Settings

5.5 Rewiring the Torque Switch for Non-Standard Drive Sleeve Rotation

5.6 Limit Switch and Mechanical Stop Settings

5.7 Setting the Limit Switches

5.7.1 Setting the CLOSED Limit Switch

Procedure for setting the closed limit switch.

5.7.2 Setting the OPEN Limit Switch

Procedure for setting the open limit switch.

5.8 Mechanical Stops

5.8.1 Setting the CLOSED Mechanical Stop on the LY 1001

Procedure for setting the closed mechanical stop for the LY 1001 model.

5.8.2 Setting the CLOSED Mechanical Stop on the LY 2001/3001

Procedure for setting the closed mechanical stop for LY 2001/3001.

5.8.3 Setting the OPEN Mechanical Stop on the LY 1001

Procedure for setting the open mechanical stop for the LY 1001 model.

5.8.4 Setting the OPEN Mechanical Stop on the LY 2001/3001

Procedure for setting the open mechanical stop for LY 2001/3001.

6 Operation

6.2 Verify Correct Motor Rotation (Phasing) and OPEN/CLOSE Pushbutton Operation

Procedures to verify motor rotation and pushbutton functions.

6.2.1 Three-Phase Motor

Steps for verifying motor rotation with three-phase power supply.

6.2.2 Single-Phase Motor

Steps for verifying motor rotation with single-phase power supply.

6.2.3 DC Motor

Steps for verifying motor rotation with a DC motor.

6.3 Electrical Startup

7 Maintenance

7.1 Lubrication

7.1.1 Lubrication Inspection

7.2 Minimum Lubricant Qualities Required

7.3 Disassembly and Reassembly

7.3.1 LY 1001 Disassembly

Step-by-step guide for disassembling the LY 1001 model.

7.3.2 LY 1001 Reassembly

Step-by-step guide for reassembling the LY 1001 model.

7.3.3 LY 2001/3001 Disassembly

Step-by-step guide for disassembling the LY 2001/3001 models.

7.3.4 LY 2001/3001 Reassembly

Step-by-step guide for reassembling the LY 2001/3001 models.

7.4 Troubleshooting

Identifies symptoms, possible causes, and corrective actions for common issues.

Unit will not operate electrically

Motor runs, but no output from unit

Premature Torque Switch trip

Torque Switch fails to stop actuator

Excessive current draw

Motor overload tripping

Valve is closed, but flow is not cut off