Carlton 3A 4A & 5A, Radial Drill, Operations Maint Parts Controls Manual 1944

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Carlton 3A 4A & 5A, Radial Drill, Operations – Maintenance – Parts & Control Manual Year (1936 thru 1944)

This Manual Covers Models: 
3A
4A
5A
This Manual Includes:
6’ Arm on 19” Dia. Column
General Dimensions
Machine Leveling Instructions
Maximum Drilling Capacities
Spindle Speed and Feed Dials

American National Pipe Threads
Basic Thread Dimensions and Tap Drill Sizes NC &NF
Counterbore Sizes
Decimal Equivalents
Drilling Speeds and Feeds
Handling Checking and Leveling
Lubrications and Charts
Methods of Pointing and Thinning Drills
Normal Functions of Control Pushbuttons and Levers
Power Feed Unit
Reaming Hints
Safety Devices
Spindle Speed Control Levers
Spring Counterbalance Adjustment
Starting the Machine
Suggestions for Regrinding Drills
Table of Cutting Speeds (Drilling and Boring) 14, 15 and 16
Tapping

Maintenance:
Adjustments
Arm Clamp, Timing
Arm Elevator
Backshaft
Column Clamp, Timing
Counter-Balancing Spring
Counterweight
Electrical Equipment and Control: Coolant & Controls
Front Plate
Head
Lubrication of Quick Return Unit
Removal

Parts Lists:
Assemblies and Drawings
Extra-1941 Elementary Wiring Diagram, Allen Bradley Control This Manual Has 103 Printed Pages.
Year 1936 thru 1944
4A 2462