Pro-Weld CD-312 User Manual

Pro-Weld CD-312

34 pages

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OPERATION/MAINTENANCE

MANUAL

Table of Contents

Questions and Answers:

N
Nancy TranJul 31, 2025
What to do if Pro-Weld Welding System produces poor welds?
- F
  fisherelizabethAug 1, 2025
  If your Pro-Weld Welding System is producing poor or erratic welds, there are several potential causes and solutions: * Check for and repair any fault or loose ground connections by tightening them. * Ensure the surface of the base material is clean, removing any oil, grease, or rust. * Adjust the voltage or capacitance to match the diameter of the stud. * Repair any broken or loose cables. * Clean any dirt from the gun. * Ensure cables are not too closely coiled. Also, make sure you are not using a center punch or deep scribes.
T
theresayorkAug 10, 2025
Why does my Pro-Weld CD-312 produce erratic welds?
- M
  Misty RobertsAug 11, 2025
  Erratic welds from your Pro-Weld Welding System can stem from several issues: * Incorrect polarity. Ensure the cables are hooked up correctly. * A loose collet that doesn't grip the stud tightly. * Not enough engagement of stud to collet. Change the stop. * An incorrect plunge setting. Adjust to the proper setting. Additionally, consider whether arc blow is occurring, evidenced by 'one side' welds.
T
Teresa BakerAug 20, 2025
How to fix poor welds on Pro-Weld CD-312?
- S
  Steve WilsonAug 21, 2025
  To fix poor welds on your Pro-Weld Welding System, consider these solutions: 1. Replace with proper welds spring. 2. Replace any faulty components. 3. Decrease or increase voltage, capacitance, stud protrusion and spring pressure.

Pro-Weld CD-312 Specifications

General

Brand	Pro-Weld
Model	CD-312
Category	Welding System
Language	English

Summary

SECTION 1 – SAFETY PRECAUTIONS

Symbol Usage

Explains symbols used in the manual for warnings and notes.

Arc Welding Hazards

Details hazards associated with arc welding processes, including electric shock and fume risks.

EMF Information

1.0 INTRODUCTION

2.0 WARRANTY

3.0 UNPACKING YOUR UNIT

4.0 SUGGESTED SAFETY PRECAUTIONS

5.0 GENERAL DESCRIPTION

6.0 THE CD WELDING PROCESS

7.0 POWER REQUIREMENTS

8.0 SYSTEM SPECIFICATIONS

STANDARD GUN & CABLE SPECIFICATIONS

Details specifications for the light-duty precision CD contact weld gun and associated cables, including part numbers and weight.

9.0 WELDING SYSTEM HOOK-UP

Straight Polarity (Standard Set-Up)

Step-by-step guide for setting up the welding system using straight polarity, including cable connections.

Reverse Polarity (Recommended for brass or galvanized)

Instructions for setting up the welding system using reverse polarity, suitable for specific materials like brass or galvanized.

Cuphead and Power Point pin hook-up

Guide for connecting the welding system using cuphead and power point pins, detailing specific hook-up procedures.

10.0 SYSTEM OPERATION

11.0 GUN SET-UP

STANDARD

Details the standard gun setup using adjustable faceplate, legs, foot, B-collet, stop, and spring for specific stud sizes.

INSTALLING OR CHANGING COLLETS OR CHUCKS

Explains how to install, change, or replace collets/chucks, which hold the stud, and the need for appropriate stops.

GUN SET-UP FOR WELD PINS WITH COLLET PROTECTOR

Describes the setup using a collet protector for weld pins, detailing its advantages and available sizes.

TEMPLATE ADAPTER

Explains the use of a template adapter for precise location and positioning of CD studs, fastening to the faceplate.

COLLET PROTECTOR/BLUNT LEG

Details using a collet protector with blunt legs and round faceplate for stability and fixed plunge, applicable for certain stud sizes.

11.6 PARTS LIST LIGHT DUTY CD HANDGUN

12.0 WELDABLE MATERIAL COMBINATIONS

13.0 CAUSE OF POOR OR ERRATIC WELDS

14.0 TROUBLE SHOOTING POOR WELDS

15.0 ROUTINE WELDER MAINTENANCE

16.0 ASSEMBLY CD-312 CONTROLLER

PC BOARD ASSEMBLY DRAWING

Presents a detailed assembly drawing of the PC board for the CD-312 controller, identifying components and fuses.

17.0 TROUBLE SHOOTING – ELECTRICAL

18.0 CHECK LIST CD-312 SYSTEM PT. NO. 100-0108

19.0 CHECK LIST CD-312 SYSTEM PT. NO. 100-0109

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