Jet Tools GH-1340W, GH-1440W User Manual
OWNER’S MANUAL
GH-1340W/1440W Lathes
JET EQUIPMENT & TOOLS, INC. P.O. BOX 1349 253-351-6000
A WMH Company Auburn, WA 98071-1349 Fax 253-939-8001
www.jettools.com e-mail jet@jettools.com M-321810 6/00
Important Information
1-YEAR JET offers a one-year limited
LIMITED WARRANTY warranty on this product
REPLACEMENT PARTS
Replacement parts for this tool are available directly form JET Equipment & Tools.
To place an order, call 1-800-274-6848. Please have the following information ready:
1. Visa, MasterCard, or Discover Card number
2. Expiration date
3. Part number listed within this manual
4. Shipping address other than a Post Office box.
REPLACEMENT PART WARRANTY
JET Equipment & Tools makes every effort to assure that parts meet high quality and durability
standards and warrants to the original retail consumer/purchaser of our parts that each such part(s) to
be free from defects in materials and workmanship for a period of thirty (30) days from the date of
purchase.
PROOF OF PURCHASE
Please retain your dated sales receipt as proof of purchase to validate the warranty period.
LIMITED TOOL AND EQUIPMENT WARRANTY
JET makes every effort to assure that its products meet high quality and durability standards and warrants to the
original retail consumer/purchaser of our products that each product be free from defects in materials and
workmanship as follows: 1 YEAR LIMITED WARRANTY ON THIS JET PRODUCT. Warranty does not apply to
defects due directly or indirectly to misuse, abuse, negligence or accidents, repairs or alterations outside our
facilities or to a lack of maintenance. JET LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD SPECIFIED
ABOVE FROM THE DATE THE PRODUCT WAS PURCHASED AT RETAIL. EXCEPT AS STATED HEREIN,
ANY IMPLIED WARRANTIES OR MECHANTABILITY AND FITNESS ARE EXCLUDED. SOME STATES DO
NOT ALLOW LIMITATIONS ON HOW LONG THE IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION
MAY NOT APPLY TO YOU. JET SHALL IN NO EVENT BE LIABLE FOR DEATH, INJURIES TO PERSONS OR
PROPERY OR FOR INCIDENTAL, CONTINGENT, SPECIAL OR CONSEQUENTIAL DAMAGES ARISING
FROM THE USE OF OUR PRODUCTS. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION
OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY
NOT APPLY TO YOU. To take advantage of this warranty, the product or part must be returned for examination,
postage prepaid, to an authorized service station designated by our Auburn office. Proof of purchase date and
an explanation of the complaint must accompany the merchandise. If our inspection discloses a defect, JET will
either repair or replace the product or refund the purchase price, if we cannot readily and quickly provide a repair
or replacement, if you are willing to accept such refund. JET will return repaired product or replacement at JET’s
expense, but if it is determined there is no defect, or that the defect resulted from causes not within the scope of
JET’s warranty, then the user must bear the cost of storing and returning the product. This warranty gives you
specific legal rights, and you have other rights, which vary, from state to state.
JET Equipment & Tools •••• P.O. Box 1349, Auburn, WA 98071-1349 •••• (253) 351-6000
2
WARNING
• Read and understand the entire instruction manual before attempting assembly or
operation.
• These lathes are designed and intended for use by properly trained and experienced
personnel only. If you are not familiar with the proper and safe operation of a lathe, do
not use until proper training and knowledge have been obtained.
• Always wear approved safety glasses/face shields while using this machine.
• Make certain the machine is properly grounded.
• 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. Do not wear gloves.
• Keep the floor around the machine clean and free of scrap material, oil and grease.
• Keep machine guards in place at all times when the machine is in use. If removed for
maintenance purposes, use extreme caution and replace the guards immediately.
• Do not over reach. Maintain a balanced stance at all times so that you do not fall or lean
against blades or other moving parts.
• Make all machine adjustments or maintenance with the machine unplugged from the power
source.
• Use the right tool. Don't force a tool or attachment to do a job which it was not designed for.
• Replace warning labels if they become obscured or removed.
• Make certain the main power switch is in the OFF position before connecting the machine to the
power supply.
• Give your work undivided attention. Looking around, carrying on a conversation, and "horseplay" are careless acts that can result in serious injury.
• Keep visitors a safe distance from the work area.
• Use recommended accessories; improper accessories may be hazardous.
• Make a habit of checking to see that keys and adjusting wrenches are removed before turning
on the machine.
• Never attempt any operation or adjustment if the procedure is not understood.
• Keep fingers away from revolving parts and cutting tools while in operation.
• Keep belt guard in place and in working order.
• Never force the cutting action.
• Do not attempt to adjust or remove tools during operation.
• Always keep cutters sharp.
• Always use identical replacement parts when servicing.
• Never operate this machine under the influence of alcohol or drugs.
• Failure to comply with all of these warnings may cause serious injury.
3
Specifications: GH-1340W/1440W
Stock Number.............................................................................................. 321810 GH-1340W-1
Stock Number.............................................................................................. 321820 GH-1340W-3
Stock Number.............................................................................................. 321830 GH-1440W-1
Stock Number.............................................................................................. 321840 GH-1440W-3
Capacities:
Swing Over Bed ........................................................................................................13" (1340W)
.................................................................................................................................. 14” (1440W)
Swing Over Cross Slide .........................................................................................7-1/2" (1340W)
..............................................................................................................................8-1/2” (1440W)
Swing Through Gap...................................................................................................19" (1340W)
.................................................................................................................................. 20” (1440W)
Length of Gap...................................................................................................................... 9-3/8"
Distance Between Centers...................................................................................................... 40"
Headstock:
Hole Through Spindle.......................................................................................................... 1-1/2"
Spindle Nose.........................................................................................................................D1-4
Taper in Spindle Nose.......................................................................................................... MT-5
Spindle Taper Adapter.......................................................................................................... MT-3
SpindleBearingType...................................................................................Taper Roller Bearing
Number of Spindle Speeds........................................................................................................12
Range of Spindle Speeds........................................................................................40-1800 RPM
Gearbox:
Number of Longitudinal and Cross Feeds ..................................................................................40
Range of Longitudinal Feeds (inch/rev.)..............................................................0.0012" - 0.0294"
Range of Cross Feeds (inch/rev.) .......................................................................0.0003" - 0.0100"
Number of Inch Threads............................................................................................................40
Range of Inch Threads ............................................................................................... 4-112 T.P.I.
Number of Metric Threads.........................................................................................................22
Range of Metric Threads ..........................................................................................0.45 - 7.5mm
Leadscrew................................................................................................................ 7/8" x 49-1/2”
Feed Rod Diameter................................................................................................................ 3/4"
Compound and Carriage:
Toolpost Type..................................................................................................................... 4-Way
Maximum Tool Size.......................................................................................................5/8" x 5/8"
Maximum Compound Slide Travel ....................................................................................... 3-1/2"
Maximum Cross Slide Travel............................................................................................... 6-3/8"
Maximum Carriage Travel.................................................................................................. 37-1/2"
Tailstock:
Tailstock Spindle Travel....................................................................................................... 4-3/4"
Diameter of Tailstock Spindle...........................................................................................1-25/32"
Taper in Tailstock Spindle..................................................................................................... MT-3
4
Miscellaneous:
Steady Rest Capacity................................................................................................. 1/4" - 3-3/4"
Follow Rest Capacity .................................................................................................1/4" - 2-3/4"
Length of Bed.................................................................................................................... 54-1/2"
Width of Bed.......................................................................................................................10-1/2”
Height of Bed..................................................................................................................... 12-3/4"
Overall Dimensions...................................................................... 75-3/4"Lx 29-1/2"W x 47-1/4"H
Main Motor (1340W-1 & 1440W-1) ..............................................................3HP, 1Ph, 230V Only
Main Motor (1340W-3 & 1440W-3) .....................................3HP, 3Ph, 230V/460V prewired 230V
Net Weight (approx.)........................................................................................2,081 lbs. (1340W)
Net Weight (approx.)........................................................................................2,191 lbs. (1440W)
Shipping Weight (approx.) ...............................................................................2,351 lbs. (1340W)
Shipping Weight (approx.) ...............................................................................2,491 lbs. (1440W)
The specifications in this manual are given as general information and are not binding. JET Equipment
and Tools reserves the right to effect, at any time and without prior notice, changes or alterations to
parts, fittings, and accessory equipment deemed necessary for any reason whatsoever.
Table of Contents
Warranty.....................................................................................................................................2
Warnings.....................................................................................................................................3
Specifications...........................................................................................................................4-5
Table of Contents........................................................................................................................5
Contents of the Shipping Container..............................................................................................6
Uncrating and Clean-Up..............................................................................................................7
Chuck Preparation.......................................................................................................................8
Lubrication..............................................................................................................................9-10
Coolant Preparation...................................................................................................................11
Electrical Connections..........................................................................................................11-12
General Description.............................................................................................................. 13-15
Controls................................................................................................................................15-17
Break-In Procedure ...................................................................................................................17
Operation.............................................................................................................................18-21
Adjustments.........................................................................................................................21-23
Removable Gap ........................................................................................................................23
V-Belts......................................................................................................................................24
Aligning Tailstock to Headstock .................................................................................................24
5
WARNING
Read and understand the entire contents of
this manual before attempting set-up or
operation!
Failure to comply may cause serious
injury!
Contents of the Shipping Container
1 Lathe
1 Steady Rest
1 Follow Rest
1 6" Three Jaw Chuck w/ Top Reversing
Jaws (Direct Mount)
1 8" Four Jaw Chuck with Backplate
1 12" Face Plate (strapped to container floor)
1 Backplate
1 Tool Box
Tool Box Contents:
1 No. 1 Cross Point Screwdriver
1 No. 1 Flat Blade Screwdriver
4 Open End Wrench
(9-11, 10-12, 12-14, 17-19mm)
6 Hex Socket Wrench (2.5, 3, 4, 5, 6, 8mm)
2 Shear Pin
1 30T Change Gear
1 32T Change Gear
2 40T Change Gear
1 Oil Can
2 No. 3 Morse Taper Dead Center
1 No. 5 to No. 3 Spindle Sleeve
6 Leveling Pads
1 Chuck Key
1 Key for Cam Locks
1 Tool Post Wrench
1 Owner’s Manual
1 Warranty Card
6
Uncrating and Clean-Up
1. Finish removing the wooden crate from
around the lathe.
2. Unbolt the lathe from the shipping crate
bottom.
3. Choose a location for the lathe that is dry,
has good lighting, and has enough room
to be able to service the lathe on all four
sides.
4. Place two steel rods or pipes (of sufficient
strength) into four holes (A, Fig. 1) of lathe
stand. Sling the lathe with properly rated
straps. Do not lift by spindle. With
adequate lifting equipment, slowly raise
the lathe off the shipping crate bottom.
Make sure lathe is balanced before
moving.
5. To avoid twisting the bed, the lathe's
location must be absolutely flat and level.
Check for a level condition using a
machinist's precision level on the bedways
both front to back and side to side. The
leveling pads included in the tool box and
thelevelingscrewsinthelathebasewill
help you to reach a level condition. The
lathe must be level to be accurate.
6. Clean all rust protected surfaces using a
mild commercial solvent, kerosene or
diesel fuel. Do not use paint thinner,
gasoline, or lacquer thinner. These will
damage painted surfaces. Cover all
cleaned surfaces with a light film of Mobil
DTE Oil Heavy Medium.
7. Open the end gear door. Clean all
components of the end gear assembly
and coat all gears with Mobilith AW 1.
Close the door.
7
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!
Note: Before removing the chuck from the
spindle, place a way board across the
bedways under the chuck
1. Support the chuck while turning three
camlocks 1/4 turn counter-clockwise with
the chuck key enclosed in the tool box.
2. Carefully remove the chuck from the
spindle and place on an adequate work
surface.
3. Inspect the camlock studs. Make sure
they have not become cracked or broken
during transit. Clean all parts thoroughly
with solvent. Also clean the spindle and
camlocks.
4. Cover all chuck jaws and scroll inside the
chuck with Mobilith AW2. Cover the
spindle, cam locks, and chuck body with a
light film of Mobil DTE Oil Heavy
Medium.
5. Lift the chuck up to the spindle nose and
press onto the spindle. Tighten in place by
turning the cam locks 1/4 turn clockwise.
The index mark (A, Fig. 3) on the camlock
should be between the two indictor arrows
(B, Fig. 3). If the index mark is not
between the two arrows, remove the
chuck and adjust the camlock studs by
either turning out one full turn (if cams will
not engage) or turning in one full turn (if
cams turn beyond indicator marks).
6. Install chuck and tighten in place.
8
Loading...