Models 271 and 272 Service Manual
Heald Cincinnati Milacron Models 271 and 272 service manual covering chuck-type internal grinding machines in Size-Matic and Gage-Matic configurations. This workshop repair documentation includes installation procedures, detailed operating instructions, wheel head adjustment techniques, coolant system setup and maintenance, dresser unit configuration, grinding stroke settings, and systematic troubleshooting for both models. Also contains fixture operating parameters and parts lists to support ongoing maintenance and repair work on these precision grinding machines.
Table of Contents:
- Locate Diamond (GAGE-MATIC)
- Locate Diamond (SIZE-MATIC)
- Wheel Size Switch
- Change Wheel
- Swivel Wheelhead Cross Slide
- HYDRAULIC SYSTEM
- Power Unit
- Pump
- Check Valve
- Relief Valve and Oil Pressure
- Collet Pressure Regulating Valve
- Feed Pressure Regulating Valve
- Hydraulic Circuit
- Rapid Advance
- Rough Speed
- Back Off and Sparkout
- Dress Speed
- Finish Speed
- Rapid Return
- Uneven Table Motion
- Uneven Cross Feed Motion
- MAINTENANCE
- Lubrication
- Motor Lubrication
- Wheelhead, Workhead and Idler Lubrication
- Table Ways Lubrication
- Wheel Guard Mechanism Lubrication
- Coolant Tank
- Adjust Workhead Brake
- Servicing the Table Cylinder
- Care of Idle Wheelheads
- Servicing the Wheelhead
- Inspections
- Spare Parts
- HYDRAULIC CIRCUIT AND CYCLE CHART
- CAPACITY CHARTS
- SERVICE REPAIR PARTS INDEX
Documentation must be downloaded on a computer (PC, Mac, or Linux).
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Document Details
- Format
- Pages
- 160
- Size
- 33.3 MB
- Category
- Machine Tools