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This .pdf document is bookmarked Operation and Maintenance Instructions ZH Series Large Bore Lathes Models GH-2680ZH; GH-26120ZH Model GH-2680ZH shown For ZH-Series Lathes Parts List and Electrical Diagrams, see document M-321860-1 WALTER MEIER (Manufacturing) Inc. 427 New Sanford Road LaVergne, Tennessee 37086 Part No.
Walter Meier is consistently adding new products to the line. For complete, up-to-date product information, check with your local Walter Meier distributor, or visit waltermeier.com. WARRANTY JET products carry a limited warranty which varies in duration based upon the product (MW = Metalworking, WW = Woodworking). WHAT IS COVERED? This warranty covers any defects in workmanship or materials subject to the exceptions stated below.
13.15 Shear Pin Replacement ......................28 13.16 Steady Rest Adjustment ......................28 13.17 Follow Rest Adjustment ......................28 14.0 Troubleshooting the ZH Series Lathes ..................29 15.0 Lubrication Schedule and General Maintenance................30 16.0 Reference Tables ......................... 31 16.1 Inch Lead And Feed ........................31 16.2 Special Inch Lead And Feed ......................
3.0 Safety warnings Read and understand the entire owner’s manual before attempting assembly or operation. Read and understand the warnings posted on the machine and in this manual. Failure to comply with all of these warnings may cause serious injury. Replace the warning labels if they become obscured or removed.
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21. Give your work undivided attention. Looking around, carrying on a conversation and “horse-play” are careless acts that can result in serious injury. 22. Maintain a balanced stance at all times so that you do not fall or lean against moving parts. Do not overreach or use excessive force to perform any machine operation.
4.0 Specifications Model Number ................GH-2680ZH ........GH-26120ZH Stock Number ..................321860 ..........321890 General Capacities: Maximum Swing over Bed ............. 26” (660 mm) ........26” (660 mm) Maximum Swing over Cross Slide ........16-1/2” (420 mm) ......... 16-1/2” (420 mm) Maximum Swing Through Gap ..........
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GH-2680ZH GH-26120ZH Gearbox: Number of Longitudinal Feeds ..............65 ............65 Range of Longitudinal Feeds .. 0.0023 – 0.0937 in./rev. (0.063-2.52 mm/rev) ..0.0023 – 0.0937 (0.063-2.52 mm) Number of Cross Feeds ................63 ............63 Range of Cross Feeds .... 0.0010 – 0.0404 in/rev. (0.027-1.07 mm/rev) ..0.0010 – 0.404 (0.027-1.07 mm) Number of Inch Threads .................
6.0 General description and nomenclature Figure 2 – General Description (GH-2680ZH shown) The ZH series lathe operates on a centralized explanation of controls. The electrical box is gear system. The motor power is transferred mounted to the rear of the headstock.
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Steady Rest Cross Slide (H). The cross-slide is mounted on the saddle and used for cross feed The ZH series lathes are provided with small operations. It moves on a dovetailed slide and large steady rests (T). A steady rest serves which can be adjusted for play by means of as a support for shafts on the free tailstock end.
Round Nut Spanner, 170-210 mm – E Change Gears – 63T, 69T, 78T, 90T – F NOTE: Optional accessories are available for JET Lathes, such as Taper Attachment, Collet Closer and Digital Read Out. Contact your dealer or Walter Meier (Manufacturing) Inc., for more information.
8.1 Leveling the lathe 8.0 Installation It is imperative that the lathe be on a level plane; that is, where headstock and tailstock center 1. Finish removing all crate material from points remain aligned throughout the tailstock around lathe. travel, with the bed ways absent of twist and 2.
transit. Clean all parts thoroughly with 8.3 Chuck Preparation solvent. Also clean spindle camlocks. Read and understand all 4. Cover all chuck jaws and the scroll inside directions for chuck preparation. Failure to the chuck with #2 lithium tube grease. Cover comply may cause serious injury and/or the spindle, camlocks, and chuck body with damage to the lathe.
Failure to comply may cause serious damage to the lathe. The ZH series lathe is shipped with oil in the reservoirs. Coolant is not included. Use clean lubricants and check levels often, including before each working shift.
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One-shot Lube System: Pull knob (I, Figure 12) and hold for several seconds to allow oil to fill the pump from the apron reservoir. Then release the knob which will push the oil through various oil lines to lubricate the ways below the saddle.
9.1 Coolant Preparation 13. Leadscrew, Feed Rod, and Direction Control Axle – Slide the cover on the right Follow local regulations side bracket (Figure 15) to expose the oil and/or coolant manufacturer’s recommend- port and fill with SAE 20W oil daily. The oil is dations for use, care and disposal.
IMPORTANT: The lathe must be wired properly 1. Main Motor: Open lower panel at rear of and phased correctly. The spindle must rotate lathe beneath the gearbox, and change the counterclockwise (as viewed from the tailstock wires in the junction box on the main motor, end) while the feed rod must rotate clockwise according to the diagram on the junction box (as viewed from the tailstock end).
11.0 Basic Controls Figure 21 – Coolant pump access (GH-26120ZH) 3) Tilt the plate until you can reach the coolant pump junction box through the top opening in the bed. Follow the diagram on the coolant pump to change the leads. 4) Properly orient the pump, and secure Figure 23 –...
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3. Feed Direction Lever (F, Figure 23): 5. Carriage Lock (J, Figure 25): Located on Located on front of headstock. Moving the top right of carriage. Turn clockwise to lock, lever changes direction of feed. Center counterclockwise to unlock. position is neutral. Carriage lock must be move feed...
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feed direction lever. Rapid 18. Tailstock Quill Traverse Handwheel (V, longitudinal movement disengages Figure 27): Rotate clockwise to advance the carriage handwheel. However, the cross quill and counterclockwise to retract it. Fully slide handwheel should be disengaged retract it to eject a center or drill chuck. (pull it out) before using rapid feed.
• Avoid long workpiece extensions, as parts 12.0 Operation may bend or fly off (see figure 30). Use rests or the tailstock for support. The operator should consult shop manuals such as “Machinery’s Handbook” for cutting speeds and feeds appropriate to specific workpieces. Correct feed depends upon the material to be cut, cutting operation, tool type, chucking rigidity, depth of cut, and desired surface quality.
12.4 Thread Cutting 12.2 Spindle Speed Threading is performed in multiple passes, with Twelve speeds are available by placing the first an initial cutting depth of about 0.2 mm, and speed lever (E , Figure 32) in one of four decreasing depth in succeeding cuts.
NOTE: When a special thread must be cut that one turn, and tighten front gib screw a quarter is not found on the chart, move thread change turn. Rotate the handwheel to check the play. Repeat as needed until slide moves freely control lever (G , Figure 32) to position, and...
13.3 Tailstock Adjustments 13.4 Gap Section The tailstock can be offset to cut shallow tapers 1. To remove the gap section (A, Figure 41), up to 5° angle. See Figure 39. remove four socket head bolts (B) and two socket bolts at the ends of the rails (C). 1.
3. Loosen upper hex nut (A, Figure 42). Place scrap piece of wood under motor to act as lever. Lift motor up and block temporarily. 4. Remove belts. Install new belts onto pulleys. 5. Lift up on motor and remove temporary blocking.
13.8 Aligning Tailstock to Headstock Headstock and Tailstock have been aligned at the factory and should not require attention. If future adjustment should ever be needed, proceed as follows. (Make sure that twist in the lathe bed is not contributing to the problem – refer to section 8.1, Leveling the Lathe.) 1.
positioning pin. The tool post will rise slightly. 13.12 Apron Feed Clutch This raised distance should remain the same after repeated tool changes. The feed transmission begins with the feed rod to the apron, through feed clutch to worm, To clamp the tool post, turn the lever clockwise through the gear drives, to longitudinal or cross until it tightens.
cross slide movement, the nut needs adjusting 2. Loosen the knurled handle (B) at the side (Refer to Figure 51). until it can be pivoted out of the slot. 1. Remove dust cover (3). 3. Loosen the three lock knobs (C), and back off the fingers (D) using the knurled handles.
14.0 Troubleshooting the ZH Series Lathes Table 2 Trouble Probable Cause Remedy Verify incoming power, main leads, main No electrical power, or wiring incorrect. switch is on. Emergency stop switch is pressed. Rotate switch clockwise to release. End gear cover open, limit switch Close cover.
Regularly scheduled maintenance is crucial to ensure a long service life for your machine. The schedule below shows general cleaning, lubrication points and coolant replacement information for the ZH Series Lathes. Push stop button and power off before lubricating. Follow local regulations for disposal of used coolant/lubricants. Minimize direct skin contact with lubricants and coolants, and wear eye protection when pouring coolant in case of splash.
16.0 Reference Tables 16.1 Inch Lead And Feed Table 4 = metric threads = inch threads m = modular threads DP = diametral threads 16.2 Special Inch Lead And Feed Table 5...
16.3 Speed Selection Lever Positions Table 6 Lever Position Spindle Speeds (RPM) white white blue blue yellow yellow 1200 1600 17.0 Electrical – 230 volt to 460 volt Conversion Figure 53...
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WALTER MEIER (Manufacturing) Inc. 427 New Sanford Road LaVergne, Tennessee 37086 Phone: 800-274-6848 www.waltermeier.com...
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This .pdf document is bookmarked Parts List and Electrical Diagrams ZH Series Large Bore Lathes Models GH-2680ZH; GH-26120ZH Model GH-2680ZH shown For ZH-Series Lathes Operation and Maintenance Instructions, see document M-321860 WALTER MEIER (Manufacturing) Inc. 427 New Sanford Road LaVergne, Tennessee 37086 Part No.
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Walter Meier is consistently adding new products to the line. For complete, up-to-date product information, check with your local Walter Meier distributor, or visit waltermeier.com. WARRANTY JET products carry a limited warranty which varies in duration based upon the product (MW = Metalworking, WW = Woodworking). WHAT IS COVERED? This warranty covers any defects in workmanship or materials subject to the exceptions stated below.
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2.0 Table of Contents 1.0 Warranty and Service ............................. 2 2.0 Table of Contents ............................3 3.0 Bed Assembly I – Exploded View ....................... 4 3.1 Bed Assembly I – Parts List ........................5 4.0 Bed Assembly II – Exploded View ......................6 4.1 Bed Assembly II –...
5.1 Headstock Assembly I – Parts List Index No. Part No. Description Size 1 ....C6266C02502 ....Headstock Cover ................1 2 ....C6266C02501 ....Rubber Mat ..................1 3 ....C6140W02835 ....Flat Head Countersunk Screw ............1 4 ....
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Index No. Part No. Description Size 55 ..... GB819-M5x10 ....Cross Recessed Hd Countersunk Screw M5x10 ......2 56 ..... GB819-M6x14 ....Cross Recessed Hd Countersunk Screw M6x14 ......2 57 ..... GB818-M6x8 ....Cross Recessed Pan Head Screw .... M6x8 ......2 58 .....
6.1 Headstock Assembly II – Parts List Index No. Part No. Description Size 1 ....C6266CHA01 ....Chain ............12.7 x 58 ....... 1 2 ....GB894.1-16 ....Circlip for Shaft......... 16 mm ......1 3 ....C6140W02808 ....Chain Wheel .................. 2 4 ....
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Index No. Part No. Description Size 57 ..... TS-1522021 ....Socket Set Screw ........M5x8 ......1 58 ..... C6266C02773 ....Screw ..................... 1 59 ..... TS-2360121 ....Flat Washer..........12 mm ......1 60 ..... C6140W02826 ....Tightening Wheel ................1 61 .....
7.1 Headstock Assembly III – Parts List Index No. Part No. Description Size 1 ....C6266C08501 ....Back Cover ..................1 2 ....TS-1502031 ....Hex Socket Cap Screw ......M5x12 ......3 3 ....C6266C08706 ....Upper Hinge ................... 2 4 ....
11.0 Gear Box Assembly I – Exploded View 11.1 Gear Box Assembly I – Parts List Index No. Part No. Description Size 1 ....C6140W05504 ....Upper Cover ................... 1 2 ....TS-1534032 ....Cross Recessed Pan Head Screw .... M6x10 ......14 3 ....
20.1 Apron Assembly IV – Parts List Index No. Part No. Description Size 1 ....GB1155-10 ....Oil Cup ............. 10 mm ......1 2 ....C6266C11703 ....Handle ................... 1 3 ....C6266C11305 ....Label ....................1 4 ....
25.0 Coolant and Work Light Assembly – Exploded View 25.1 Coolant and Work Light Assembly – Parts List Index No. Part No. Description Size 1 ....RT-001C ......Rubber Tube ..........ID 1/2" x 2280 ....1 2 ....TS-2205201 ....Hex Cap Screw ........M5x20 ......4 3 ....
27.0 Small Carriage Stop – Exploded View 27.1 Small Carriage Stop – Parts List Index No. Part No. Description Size 1 ....TS-1492031 ....Hex Cap Screw ........M12x35 ......2 2 ....C6266C01112 ....Clamping Plate ................1 3 ....