Ammco 3860 Drum & Disc Brake Lathe User Manual

1601 J. P. Hennessy Drive, LaVergne, TN USA 37086-3565 615/641-7533 800/688-6359 Manual Part No.: 929250 09HENNESSY INDUSTRIES INC. Manufacture

Brake Lathes4 • AMMCO 3850, 3860 Brake LathesStarting the LatheThe switch on the power panel turns the lathe on (I).Read and follow all safety instruc

Reading the Drum Depth-of-Cut Micrometer DialThe drum depth-of-cut micrometer dial is located on the hand-wheel. The dial has an inch scale (metric on

6 • AMMCO 3850, 3860 Brake LathesBrake LathesMounting DrumsHubbed drums are mounted with tapered adaptersthat contact the drum near the middle of the

Brake LathesAMMCO 3850, 3860 Brake Lathes • 7Important: Never position the boring bar clamp so it over-hangs the tool slide. This causes the T-bolt to

8 • AMMCO 3850, 3860 Brake LathesBrake Lathes11. Back the tool bit off, turn the lathe off, andcheck the drum mounting. Loosen the arbor nut androtate

AMMCO 3850, 3860 Brake Lathes • 9Brake Lathes11. Back the tool bit off, turn the lathe off, andcheck the drum mounting. Loosen the arbor nut androtate

10 • AMMCO 3850, 3860 Brake LathesBrake Lathes - 1” Arbor - Arbor Nut - Self-Aligning Spacer -

Brake LathesAMMCO 3850, 3860 Brake Lathes • 11Reconditioning Brake Rotors1. Mount the rotor. Use the typical mounting configurations inFigure 13 as a

Brake Lathes12 • AMMCO 3850, 3860 Brake LathesNote: Be sure to position twin cutter so the outside tool bit willbe able to just barely contact the rot

AMMCO 3850, 3860 Brake Lathes • 13Brake Lathes19. Turn the lathe on and move the tool bit in to therotor and make a second scratch cut. Back the tool

ii • AMMCO 3850, 3860 Brake LathesBrake Lathes

14 • AMMCO 3850, 3860 Brake LathesBrake LathesMaintenance andServiceAll the caution, warning, and danger information, aswell as the general safety inf

AMMCO 3850, 3860 Brake Lathes • 15Brake LathesCleaningKeep the lathe and the immediate working area asclean as possible for trouble-free operation as

16 • AMMCO 3850, 3860 Brake LathesBrake LathesGib AdjustmentAccurate gib adjustment is required for smooth andaccurate operation.Gib adjustment requir

AMMCO 3850, 3860 Brake Lathes • 17Note: If the crossfeed jerks or more than a moderateamount of effort is required to turn the handwheel, theadjustmen

929250 09 05/01 © Copyright 1994 Hennessy Industries and AMMCO All Rights Reserved Printed in USA

AMMCO 3850, 3860 Brake Lathes • iiiTable of ContentsSafety Notices and Decals . . . . . . . . . . . . .ivWarning . . . . . . . . . . . . . . . . . .

iv • AMMCO 3850, 3860 Brake LathesSafetySafety Notices andDecalsFor your safety, and the safety of others, read andunderstand all of the safety notice

AMMCO 3850, 3860 Brake Lathes • vOwner’s ResponsibilityTo maintain machine and user safety, the responsi-bility of the owner is to read and follow the

vi • AMMCO 3850, 3860 Brake LathesREAD ALL INSTRUCTIONSWhen using your garage equipment, basic safety precau-tions should always be followed, includin

Brake LathesAMMCO 3850, 3860 Brake Lathes • 1Before You BeginReceivingThe shipment should be thoroughly inspected as soon as it isreceived. The signed

Installation1. Assemble bench according to the instructions provided.Tighten all fasteners securely.2. After assembly, the bench should be leveled and

AMMCO 3850, 3860 Brake Lathes • 3Brake LathesPrincipal Operating Parts Work Light T-Bolt and Self-Aligning Hex Nut Drive Motor (not seen in drawing