Table of Contents
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Table of Contents
Summary of Contents for Amco GH-1340B
- Page 1 GH-1340B(C6232B2) GH-1440B(C6236B2) GEARED HEAD PRECISION LATHE OPERATOR’S MANUAL...
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Page 2: Warning
WARNING! 1. Read and understand the entire instruction manual before operating machine. 2. Always wear approved safety glasses/face shields while using this machine. 3. Make certain the machine is properly grounded. 4. Before operating the machine, remove tie, rings, watches, other jewelry, and roll up sleeves above the elbows. Remove all loose clothing and confine long hair. -
Page 3: Specifications
Specifications: GH-1340B（C6232B2） Capacities: Swing Over Bed ........................... 13"（330mm） Swing Over Cross Slide ........................7-5/ 8"（195mm） Swing Over Gap........................... 19"（475mm） Length of Gap ..........................9-3/ 8"（238mm） Distance Between Centers ........................ 40"（1000mm） Headstock: Hole through Spindle ......................... 1-1/2"（38mm） Spindle Nose ................................. D1-4 Taper in Spindle Nose ............................ - Page 4 Specifications: GH-1440B（C6236B2） Capacities: Swing Over Bed ........................... 14"（356mm） Swing Over Cross Slide ........................8-5/ 8"（220mm） Swing Over Gap........................... 20"（506mm） Length of Gap ..........................9-3/ 8"（238mm） Distance Between Centers ........................ 40"（1000mm） Headstock: Hole through Spindle ......................... 1-1/2"（38mm） Spindle Nose ................................. D1-4 Taper in Spindle Nose ............................
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Page 5: Table Of Contents
Table of Contents Warning ..................................1 Specifications ................................2-3 Table of Contents ................................ 4 Uncrating and Clean-Up ............................. 5 Chuck Preparation ..............................6 Lubrication ................................7-8 Electrical Connections ............................8-9 General Description ............................... 9-11 Controls ................................11-13 Break-In Procedure ..............................14 Operation ................................ -
Page 6: Uncrating And Clean-Up
△ WARNING Read and understand the entire contents of this manual before attempting set-up or operation! Failure to comply may cause serious injury! Uncrating and Clean-Up 1. Finish removing the wooden crate from around the lathe. 2. Unbolt the lathe from the shipping crate bottom. 3. -
Page 7: Chuck Preparation
Chuck Preparation (Three Jaw) △ WARNING Read and understand all directions for chuck preparation! Failure to comply may cause serious injury and/or damage to the lathe! 1. Support the chuck while turning three camlocks 1/4 turn counter-clockwise with the chuck key enclosed in the tool box Carefully remove the chuck from the spindle and place on an adequate work surface. -
Page 8: Lubrication
Lubrication △ CAUTION Lathe must be serviced at all lubrication points and all reservoirs filled to operating level before the lathe is put into service! Failure to comply may cause serious damage to the lathe! Headstock - Oil must be up to indicator mark in oil sight glass. -
Page 9: Electrical Connections
Carriage - lubricate four oil ports (A, Fig. 6) with 20W machine oil once daily. Tailstock - Lubricate two oil ports (B, Fig. 6) with 20W machine oil once daily. Coolant Preparation △ CAUTION Follow coolant manufacturer’s recommendations for use, care, and disposal. -
Page 10: General Description
leads, and connect the lathe to the power source. General Description Lathe Bed The lathe bed (A, Fig. 7) is made of high grade cast iron. By combining high cheeks with strong cross ribs, a bed with low vibration and high rigidity is realized. Two precision ground vee slideways, reinforced by heat hardening and grinding, are an accurate guide for the carriage and headstock. - Page 11 of a lever. Quick travel of the apron is accomplished by means of a bed mounted rack and pinion, operated by a hand wheel on the front of the apron. Tailstock The tailstock (A, Fig. 9) slides on a v-way and can be locked at any location by a clamping lever.
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Page 12: Controls
Follow Rest The traveling follow rest (F, Fig. 9) is mounted on the saddle and follows the movement of the turning tool. Only two fingers are required as the place of the third is taken by the turning tool. The follow rest is used for turning operations on long, slender workpieces. - Page 13 “D” are for the feed rod. Positions "E” and “C” are for the feed screw. Positions ”0” is neutral. 6. Lock Knob (A, Fig. 11) – Located on the front of the gearbox. With the lever in the six o’clock position, lead/feed selector knob (B, Fig.
- Page 14 moves the cross slide toward the rear of the machine. 15. Compound Rest Traverse Handwheel (H, Fig. 12) - located on the end of the compound slide. Rotate clockwise or counter-clockwise to move or position. 16. Tool Post Clamping Lever (J, Fig. 12) - located on top of the toolpost.
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Page 15: Break-In Procedure
Break-In Procedure During manufacture and testing, this lathe has been operated in the low R.P.M. range for three hours. To allow time for the gears and bearings to break-in and run smoothly, do not run the lathe above 755 R.P.M for the first six hours of operation and use. - Page 16 too tight will cause excessive noise and wear. 8. Install the cover and connect the machine to the power source. Note: other gear combinations are possible. See the lead and feed chart on the front of the gearbox (A, Fig. 16) Automatic Feed Operation and Feed Changes 1.
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Page 17: Adjustments
Inch Gear Box: Inch Lead and Feed Table Metric Thread Table LEAD SCREW 4mm LEVER LEAD SCREW 8TPI CROSS SCREW 4mm LEVER CROSS SCREW 10TPI 2.25 3.25 2.75 1.0 1.125 1.25 1.625 1.75 1.375 0.625 0.75 0.875 0.65 0.45 0.55 T.P.I 3.75 T 1"... - Page 18 2. Turn each of the four set screws with a hex wrench until a slight resistance is felt. Do not over tighten these screws. Move the carriage with the hand wheel and determine if the drag is to your preference. Readjust the set screws as necessary to achieve the desired drag.
- Page 19 Tailstock Off-Set Follow the procedure below to off-set the tailstock to cut shallow tapers: 1. Lock tailstock in position by raising locking handle (A, Fig. 22). 2. Alternately loosen and tighten front and rear hex socket cap screws (B, Fig. 22). Tailstock Gibs Take up play in the tailstock by tightening two gib screws Note:...
- Page 20 is required, loosen hex socket cap screws (A, Fig.23) which hold the headstock to the bed. Do not loosen completely; some drag should remain. Adjust two screw nuts (B, Fig.23) located on the endgear side of the headstock. Loose one and tighten the other.
- Page 21 Belt Replacement and adjustment 1. Disconnect machine from the power source. 2. Remove end gear cover and lower rear cover on the headstock side. 3. Take tension off old belts by loosening two motor mount plate screws (A, Fig. 25). 4.
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