Heald 271-276 Internal Grinding Machines Service Manual
Comprehensive service manual for Heald chuck-type internal grinding machines covering models 271 and 272 (standard and tool room versions), model 274 (universal), and models 275 and 276 (extended bridge configurations). This workshop manual provides complete repair and maintenance guidance including installation procedures, detailed operating instructions with essential safety precautions, push button and switch operation, throttle control mechanics, table lever and dog adjustment, workhead belt tension settings, oil mist lubrication systems, grinding operation setup, wheelhead installation and drive alignment, wheel sizing charts and operating speeds, coolant flow regulation, swivel workhead positioning, grinding stroke calibration, feed box adjustment, and comprehensive hydraulic system documentation covering the power unit, pump specifications, and check valve operation. An authoritative reference for technicians performing maintenance, troubleshooting, and repairs on these precision internal grinding machines. Original USA publication, copyright 1963.
Table of Contents:
- GENERAL DESCRIPTION
- INSTALLATION
- Lifting the Machine
- The Foundation
- Clean the Machine
- Fill the Hydraulic and Ways Lubrication Systems
- Connect the Machine to the Power Line
- Align the Machine
- Attach Coolant Tank
- OPERATING INSTRUCTIONS
- General Safety Precautions
- Push Buttons and Switches
- Throttle
- Table Lever
- Table Dogs
- Adjust Workhead Belt Tension
- Oil Mist Lubricator
- SETTING UP
- Attach Work Fixture
- Install the Wheelhead and Adjust Drive
- Install and Remove Wheelhead Quill
- Wheel Size and Maximum Safe Operating Speed
- Adjust Coolant Flow
- Swivel Workhead
- Set Grinding Stroke
- Adjust Dresser Unit
- Set Speeds
- True Wheel
- Feed Box
- Adjust Feed Box and Diamond
- Hand Table Feed and Facing Attachment
- Workhead Cross Slide Position Indicator
- Swivel Wheelhead Cross Slide
- HYDRAULIC SYSTEM
- Power Unit
- Pumps
- Check Valve
- Machine Oil Pressure
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Document Details
- Format
- Pages
- 76
- Size
- 30.0 MB
- Category
- Machine Tools