Keller Pratt & Whitney BL, BG21, BG22 Milling Machine Operation & Parts Manual

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Keller Pratt & Whitney Type BL, BG-21, BG-22 Milling Machine Operators Instruction and Parts Lists Manual Year (1958)       

This Manual Covers Models:
Type BL
Type BG-21
Type BG-22
This Manual Includes:
Automatic (three dimensional) Tracer
Contact Adjustments
Balancing the Tracer Spindle
Maintenance
Profile (two-dimensional) Tracer-M1730-EL44
Drawings and Parts Lists
Selsyn Operated Profile Tracer for 360 Degree Profiling
Combination Tracer M1730-EL37 (Style 1)
Selsyn Operated Combination Tracer M1730-EL57 with Selsyn Operating Device M1730-EL56:
Operations and Limitations
Selsyn Operating Device
aligning Tracer Spindle and Adjusting Profile Contact Gaps
Adjusting the In and Out Contacts
Checking Runout of Tracer Point
Checking Balance of Tracer Point
Combination Tracer MaintenanceThis Manual Has 60 Printed Pages.
Year October 1958