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Starrett 3814 User Manual

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The L.S. Starrett Company
121 Crescent St. Athol, MA 01331
TECHNICAL SUPPORT: (201) 962-8352
Rockwell Hardness Tester
Model No. 3814
Operation Manual
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Starrett 3814 Specifications

General IconGeneral
BrandStarrett
Model3814
CategoryTest Equipment
LanguageEnglish

Summary

Description

Unpacking

Basic Set Up Information

Weight Bar and Weight Placement

Details on correctly placing weights on the weight bar for operation.

Penetrator Installation

Instructions for installing the diamond or ball penetrator correctly.

Initial Dial Calibration & Testing Setup

Steps for setting the weight selector and aligning the dial for initial testing.

Adding Oil to the Handle Buffer

Handle Buffer Oil Refill Procedure

Steps to refill the hydraulic oil in the handle buffer for smooth operation.

General Safety Instructions

Installation

Mounting the Tester

Instructions for positioning and drilling mounting holes for the tester.

Leveling the Tester

Procedures to ensure the tester is perfectly level for accurate measurements.

Seating Your Diamond

Specimen and Anvil Preparation

Guidelines for preparing test specimens and selecting the correct anvil.

Test Operation Procedure

Detailed steps for performing a hardness test using the tester.

Maintenance

Fine Adjustment for 3814

Pre-Adjustment Checks

Essential checks before performing fine adjustments on the tester.

Dial Adjustment Procedure

Step-by-step guide for fine-tuning the dial indicator for accurate readings.

Adjusting the Indicator Needle Starting Point

Compensation Adjustment for Calibration

Troubleshooting Chart

Incorrect Hardness Measurement

Identifies causes and solutions for inaccurate hardness measurements.

Inconsistent Test Block Readings

Addresses variations in readings when using test blocks.

Dial Indicator Speed Issues

Solutions for the dial indicator needle moving too fast at test start.

Weight - Load - Indentor Chart

Scale Symbol and Indentor Type

Lists scale symbols, indentor types, and their corresponding forces.

Typical Applications by Scale

Details typical materials and conditions for each hardness scale.

Round Correction Factors

Corrections for Rockwell C, A and D Values

Factors to add to test results for convex cylindrical surfaces on C, A, D scales.

Corrections for Rockwell B, F and G Values

Factors to add to test results for convex cylindrical surfaces on B, F, G scales.

Minimum Thickness Requirements

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