HONEYWELL MP953 SERIES SERVICE DATA Pdf Download

General Information

Description of Actuators

Provides a detailed description of the MO953A-D and MP953A-F pneumatic valve actuators.

Actuator Application

Details the application of these actuators in controlling V5011 and V5013 valves and other coil, line, and zone valves.

Actuator Specifications

Outlines key specifications including models, maximum safe air pressure, and other parameters listed in tables.

Actuator Operation Principles

Explains how direct-acting and reverse-acting actuators function based on control air pressure.

Maintenance Procedures

Maintenance Equipment Needed

Lists the necessary tools and equipment for performing maintenance tasks on the actuators.

Visual Inspection Guidelines

Details how to perform a visual inspection to check for leaks, loose fittings, and other visible issues.

Actuator Cleaning Instructions

Provides instructions for cleaning the actuator using commercial cleaning solvents or degreasers.

Operational Check Procedure

Describes how to check the actuator's operational range by varying pilot pressure.

Actuator Adjustments

Covers general adjustment procedures for the actuators.

Check Adjustment on MP953A, B, E, F

Specific steps for checking and verifying actuator adjustments on models MP953A, B, E, and F.

Set Operating Range

Instructions on how to set the operating range for MP953A, B, E, and F models.

Adjust Start Point

Guidance on setting the start point for MP953A, B, E, and F actuators.

Troubleshooting Actuators

Troubleshooting Equipment Needed

Lists the pressure gauge required for troubleshooting actuator issues.

Symptoms and Corrective Actions

Details common symptoms and provides corrective actions, referencing flowcharts for guidance.

Actuator Repair Procedures

General Repair Information

Introduction to the repair section, listing tools and procedures for actuator disassembly and part replacement.

Tools Required for Repair

Lists basic repair tasks and the specific tools required for each.

Gradutrol Relay Assemblies

Details related to the Gradutrol Relay Assemblies.

MO953 Conversion

Procedure for converting MO953 Actuators.

Yoke Assembly

Information regarding the yoke assembly for the actuators.

Replace Main Diaphragm

Step-by-step guide for replacing the main diaphragm of the actuators.

MP953A, C, E Direct-Acting Actuators

Specific repair procedures for direct-acting MP953A, C, and E models.

Remove Actuator Cover

Instructions for carefully removing the actuator cover, especially for direct-acting models.

Replace Diaphragm

Procedure for installing a new diaphragm into the actuator.

MP953B, D, F Reverse-Acting Actuators

Specific repair procedures for reverse-acting MP953B, D, and F models.

Replace Actuator Base

Instructions for removing and replacing the actuator base assembly.

MP953A, C, E Direct-Acting Actuators Base Replacement

Procedure for replacing the base on direct-acting MP953A, C, E models.

MP953B, D, F Reverse-Acting Actuators Base Replacement

Procedure for replacing the base on reverse-acting MP953B, D, F models.

Replace Actuator Main Spring

Guidance on safely removing and replacing the actuator's main spring.

MP953A, C, E Direct-Acting Actuators Main Spring

Specifics on main spring replacement for direct-acting models.

MP953B, D, F Reverse-Acting Actuators Main Spring

Specifics on main spring replacement for reverse-acting models.

Replace Gradutrol Relay/Positive Positioner

Procedure for replacing the Gradutrol Relay or Positive Positioner.

MP953A, E Direct-Acting Actuators Relay/Positioner

Instructions for replacing the relay/positioner on MP953A, E models.

MP953B, F Reverse-Acting Actuators Relay/Positioner

Instructions for replacing the relay/positioner on MP953B, F models.

Replace Gradutrol Relay/Positive Positioner Feedback Spring

Procedure for replacing the feedback spring for the relay/positioner.

Replace Gradutrol Relay/Positive Positioner Filter

Instructions for replacing the filter in the relay/positioner assembly.

MP953A, B with Gradutrol Relay Filter

Specific filter replacement for MP953A, B models with Gradutrol Relay.

MP953E, F with Positive Positioner Filter

Specific filter replacement for MP953E, F models with Positive Positioner.

Install Stem Antispin Feature

Procedure for installing the stem antispin feature on MP953A, C, E models.

Modify Actuator for Antispin

Details on modifying the actuator to incorporate the antispin feature.

Replace Valve Stem Button

Instructions for replacing the valve stem button.

Parts and Accessories

Actuator Parts Identification

Lists parts shown in exploded diagrams for MO953A-D and MP953A-F actuators.

Positioner Retrofit and Spring Kits

Details on positioner retrofit kits and feedback spring kits for MP953 actuators.

Actuator Specifications and Models

Actuator Model Descriptions

Lists and describes the various models of MP953 actuators, including direct/reverse acting and relay/positioner types.

Maximum Safe Air Pressure

Specifies the maximum safe operating air pressure for the actuators.

Actuator Operation Details

Direct-Acting System Operation

Explains the operation of direct-acting actuators in closing off flow.

Reverse-Acting System Operation

Explains the operation of reverse-acting actuators in increasing flow.

Pilot Pressure Application

Describes how pilot pressure is applied to the diaphragm in different actuator configurations.

Actuator Adjustments and Settings

Setting the Operating Range

Detailed steps for setting the operating range on MP953A, B, E, and F models.

Adjusting the Start Point

Instructions for adjusting the start point on MP953A, B, E, and F actuators.

Troubleshooting Flowcharts

Troubleshooting Equipment

Lists the pressure gauge required for actuator troubleshooting.

Symptoms and Corrective Actions

Details common symptoms and provides corrective actions, referencing flowcharts for guidance.

Actuator Repair Basics

General Repair Overview

Introduction to actuator repair, listing tools and procedures for replacing parts.

Equipment for Repair Tasks

Lists basic repair tasks and the tools required for each.