Acer ATL 1840E Operation Manual
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Acer ATL 1840E Operation Manual

Acer ATL 1840E Operation Manual

Precision flat bed cnc lathe
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OPERATION MANUAL
Precision Flat Bed CNC Lathe
Taiwan: Ya-Gin Machine Tool Manufacturing, Inc.
No. 101, 506 Lane, Seng-Tso Road
Seng Karng District, Taichung City, Taiwan
Tel: 886-4-2520-4120
CA: Springwood Industrial, Inc.
2320 E. Valencia Drive
Fullerton, CA 92831
Tel: 714-871-5558
NJ: Klim Industrial, Inc.
244 N. Randolphville Rd.
Piscataway, NJ 08854
Tel: 732-752-9100
Revision: 3/10/16
ACER
Model: ATL 1840E
Fax: 714-871-5554
Fax: 732-752-9101
Fax: 886-4-2520-4123

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  • Page 1 ACER OPERATION MANUAL Precision Flat Bed CNC Lathe Model: ATL 1840E Taiwan: Ya-Gin Machine Tool Manufacturing, Inc. No. 101, 506 Lane, Seng-Tso Road Seng Karng District, Taichung City, Taiwan Tel: 886-4-2520-4120 Fax: 886-4-2520-4123 CA: Springwood Industrial, Inc. 2320 E. Valencia Drive...

  • Page 2: Table Of Contents

    CONTENT SAFETY INSTRUCTIONS 1.1 General safety instructions for operating the machine…………………………… P 1.1.1 Safety instructions for work holding …………………………………………. P 1.2 Maintenance safety instruction ………………………………………………………………… P 1.3 Installation precautions …………………………………………………………………………... P 1.3.1 Wiring …………………………………………………………………………………………. P 1.3.2 Grounding …………………………………………………………………………………… P 1.3.3 Environmental conditions ……………………………………………………………...
  • Page 3 Content 3.3.2 Machine Lifting ………………………………………………………………………… 3.3.3 Machine Placing …………………………………………………………………………… P 3.3.4 Machine Clean & Lubrication ……………………………………………………… P 3.4 Machine Leveling ……………………………………………………………………………………… P 3.5 Lubrication ……………………………………………………………………………………………… P 3.5.1 Lubrication pump specification …………………………………………………… P 3.5.2 Lubrication System ……………………………………………………………………… P 3.5.3 Lubrication system on Headstock ………………………………………………… P 3-10 3.5.4 Lubrication on tailstock ………………………………………………………………...
  • Page 4 5.6 Independent chuck………………………………………………………………………………….. P ELECTRICAL DIAGRAM & ITS PARTS LIST MECHANICAL DRAWINGS & PART BREAKDOWN LIST 7.1 Headstock………………………………………………………………………………………….. 7.2 Bed & Z axis transmission…………………………………………………………………… 7.3 Carriage & cross slide……………………………………………………………………….. 7-10 7.4 Tailstock…………………………………………………………………………………………….. 7-13 WARNING Persons unable to read English must have this manual read and explained to them before operating or maintaining the machine.

  • Page 5: Safety Instructions

    SAFETY INSTRUCTIONS...

  • Page 6: General Safety Instructions For Operating The Machine

    1. SAFETY INSTRUCTIONS WARNING Do not install, operate, or service this machine until: 1) You have read and understand the safety instructions on the pages that follow. 2) You have read and understand the operator’s manual, especially knowing the function and location of all machine controls and read manuals for any related accessories.
  • Page 7 3) Never reach into the work area when the spindle is rotating or if the machine is in automatic mode. 4) Put the machine in manual mode and be sure last programmed function has been Completed before reaching inside of the work area. 5) The functions of the machine make it impossible to eliminate all pinch points.

  • Page 8: Safety Instructions For Work Holding

    14) Never touch a machine control device or electrical component when your hand is wet. Keep flammable liquids and materials away from the work area and chips. 15) Never clean up chips while the machine is running or is in automatic mode. 16) Do not file work pieces being rotated under power.
  • Page 9 travel. When using a power chuck, check the hydraulic or air pressure before every operation. Low chucking pressures will diminish jaw-gripping force, which may allow the work piece to come out of the jaws. Excessive pressure can damage a power chuck, which could cause a loss of jaw force. The gripping force of a power chuck can be diminished as much as 50% because lack of lubrication or lack of periodic cleaning.

  • Page 10: Maintenance Safety Instruction

    diameter, without being supported by the tailstock, poor cutting condition will normally occur. Under no circumstances extend an unsupported work piece more than this amount without supporting the work piece with the tailstock. Doing so can cause the part to bend or break. 11) If the personal is trapped by axes movement, then the release procedure is shown as below: Power ON:...

  • Page 11: Wiring

    1.3.1 Wiring 1) Be sure to use electrical conductors with performance ratings equivalent or superior to those described in the Maintenance Manual. 2) Do nut connect to the power distribution panel any power cables for device, which can cause Line noise, such as, are welders and high frequency quenching machines.

  • Page 12: Environmental Conditions

    DESIRABLE INDEPENDENT GROUNDING Earth resistance: Less than 100 ohms Common grounds: Resistance to ground = 100 the number of devices connected to the grounding (Ω) NEVER GROUND EQUIPMENT AS SHOWN IN THE LEFT SIDE FIGURE (FORBADE): (WRONG!) 1.3.3 Environmental conditions Generally, the machine will be installed on the following conditions.

  • Page 13: Safety Precaution

    1.4 SAFETY PRECAUTION This machine is provided with a number of safety devices to protect operator and equipment from being injured and damaged. Operators should not, however, rely solely upon these safety devices but should operate the machine after fully understanding what special precautions to take by reading the following remarks thoroughly.

  • Page 14: Before Switching On

    4) Protect the NC unit, operating panel, electric control panel, etc. from shocks, since this could cause a failure or malfunction. 5) Do not change parameters, values and other electrical settings unnecessarily. If such changes are unavoidable, record the values prior to the change so that they can be returned to their original settings if necessary.

  • Page 15: Routine Inspections

    necessary. 5) For lubricating points, oil brands and appropriate levels, see the various instruction plates. 6) Switches and levers should operate smoothly. 7) Check the coolant level, and add coolant, if necessary. 8) When switching the machine on, connect the factory feeder switch to the machine circuit breaker, and then turn power switch to the ON position in order 1.4.2 Routine inspections...

  • Page 16: Preparations

    1.4.4 Preparations WARNING 1) Tooling should conform to the machine specifications, dimensions types. 2) Seriously worm-out tools can cause injuries. Replace all such tools with new ones beforehand 3) The work area should be adequately lighted to facilitate safety checks. 4) Tools and other items around the machine or equipment should be stored to ensure good footing and clear aisles, 5) Tools or any items must not be place on the headstock, turret, cover and...

  • Page 17: To Interrupt Machine

    10) While a work piece is turning, do not wipe it off or remove chips with a cloth or by hand. Always stop the machine first and then use a brush and a sweeper (for machine). 11) Do not operate the machine with safety front guard and chuck covers opened.

  • Page 18: Completing A Job

    Drop saddle cover removed. Put the L-wrench into the screw end of the X-axis, at the reverse exit from the work piece as shown as figure. COVER The screw end of X-axis ball 1.4.7 Completing a job CAUTION 1) Always clean the machine or equipment. Remove and dispose of chips and clean cover, guard and windows, etc.

  • Page 19: Safety Devices

    1.4.8 Safety devices 1) Front guard, rear guard and chuck guard. 2) Over travel limit switches. 3) Chuck barrier, tail barrier and tool barrier (NC software) 4) Stored stroke limit (NC software) 5) Emergency Stop push buttons. 1.4.9 Maintenance operation preparations 1) Do not proceed to any maintenance operation unless being instructed to do it by the foreman.

  • Page 20: Unit Operation Is Begun After Maintenance

    contact with the responsible person. Do not decide by yourself. 2) Over-travel limit and proximity switches and interlock mechanisms including function Parts should not be removed or modified. 3) When working at a height, us steps or ladders which are maintained and controlled daily for safety.

  • Page 21: Warning Signs Plate On The Machine

    1.5 WARNING SIGNS PLATE ON THE MACHINE Safety-related information, which must be strictly observed by all machine operators, is given on warning signs plate. These warning signs plate are attached to the machine. Page 1-16...
  • Page 22 Page 1-17...

  • Page 23: Hazard List And Solution

    1.6 HAZARD LIST AND SOLUTION HAZARD LOCATION RISH DESCRIPTION SOLUTION Z axis leads screw When z-axis is moving, the Fit a protection cover above rotating Ball screw could cause The Ball screw to prevent hurt to operator if he touches it operator from touching it with unconsciously.

  • Page 24: Machine Specifications

    MACHINE SPECIFICATIONS...

  • Page 25: Dimensional Drawing

    2. MACHINE SPECIFICATIONS 2.1 Dimensional drawing Page 2-1...

  • Page 26: General Layout

    2.1.1 General layout ITEM DESCRIPTION ITEM DESCRIPTION SERVO MOTOR OF Z AXIS TAILSTOCK SPINDLE APRON ELECTRIC POWER BOX BALL SCREW OF X AXIS HEAD STOCK SERVO MOTOR OF X AXIS CHUCK FOUNDATION STAND SPLASH GUARD SPLASH CHIP PAN X AXIS HANDWELL BALL SCREW OF Z AXIS Z AXIS HANDWELL CONTROL PANEL...

  • Page 27: Chip Conveyor

    2.1.2 Chip Conveyor Page 2-3...

  • Page 28: Specification

    2.1.3 Specifications Model \ Description ATL-1820E ATL- 1830E ATL- 1840E WORKING CAPACITY Swing over bed 460 mm Center height 230 mm Swing over cross slide 230 mm Dist. Between centers 550mm 750mm 1000mm Width of bed 300mm HEADSTOCK Spindle nose A1-6 Spindle bore 58mm (2”)

  • Page 29: Interrupted Diagram Of Tool Rack

    2.2 INTERRUPTED DIAGRAM OF TOOL RACK Unit:mm TURRET MODEL L max. ATL-1820E 4 Way Tool post ATL-1830E ATL-1840E ATL-1820E 8 Station Turret ATL-1830E ATL-1840E Unit:mm TURRET MODEL D max. Dt max. 4 Way Tool post Dia.230 Dia.460 ATL-18X0E 8 Station Turret Dia.230 Dia.460 Page 2-5...

  • Page 30: Check List

    2.3 Check list 2.3.1Check list for operation ITEM DESCRIPTION NO. Read through operating manual thoroughly Read through all instruction manual thoroughly Lifting moving machine Installing machine Leveling machine Lubricating instruction Checking electrical circuit connection Main switch and button ‘’ON’’ Press emergency stop button to stop machine Learn safety rules Simple trouble shooting Maintenance...

  • Page 31: Installation

    INSTALLATION...

  • Page 32: Foundation

    3 INSTALLATION 3.1 Foundation To upgrade the operation efficiency and accuracy of precision machining, a proper foundation is required. It is recommended to locate the machine in a place away and without the influence of damping, chemical gas or trembling. The machine body is not allowed to be exposed to sunshine or rain.

  • Page 33: Foundation Layout

    3.1.1 Foundation layout Please dig holes in places as big as shown in Figure for setting foundation bolts. Place the bolts in the holes then fill the holes with cement. Lift the machine on the bolts after the cement has turned into solid concrete, and then fix the bolts with screw nuts.

  • Page 34: Layout & Floor Plan

    3.1.2 Layout & floor plan Following is a top view drawing.

  • Page 35: Connection Of Power Line

    3.2 Connection of power line 1) Make sure the voltage of incoming power supply is the right type that the machine requires or as marked on the unit. 2) Connect the power wires per electrical code in your area. 3) Power wires, grounding and over-voltage protector should comply with the local electricity regulations.

  • Page 36: Machine Lifting

    Please use the following equipment to lift the machine. 1) A crane which the safety loading weight required must more than the machine at least. 2) Two safety straps with width of 80 mm, thickness of 6 mm and length of 4000 mm.

  • Page 37: Machine Placing

    3.3.3 Machine placing Before placing the machine, fix the adjusting screws on the base, make the machine as close as possible to the floor, and position the leveling pads in their most suitable place, so as to increase the stability of machine. 3.3.4 MACHINE CLEAN &...

  • Page 38: Machine Leveling

    3.4 Machine leveling It is necessary to level the machine before starting to operate the machine. Please prepare the following tools to adjust machine leveling: 1) Accurate spirit leveling gauge (spec. 0.02mm/1000mm or 0.01in/4ft0 2) Two adjustable wrench Clean the table surface thoroughly, set one of the spirit leveling gauge on the longitudinal direction and the other on the cross direction of the slide.
  • Page 39 * Note whether motor is running or not. 1) Fill clean lubricant into the oil tank up to the “MAX” marking of the oil level indicator. 2) The oil tank preserves clean lubricant. 3) In case impurity remains in the oil tank so as to fail the oil feeding, please clean the oil absorbing net immediately.

  • Page 40: Lubrication System

    PUMP OUTLET VOLUME(MAX.) 0.5 cc/sec. DISCHARGE PRESSURE 10kg /cm TANK CAPACITY : LITER MATERIAL Operating instruction 1) Instruction for manual oil feeding if continued lubricating is required. Please actuate the coercive pumping switch. 2) Setting time of auto oil-feeding to take off the cover of wiring box and set the “NO”...

  • Page 41: Lubrication System On Headstock

    3.5.3 Lubrication system on headstock The Gear construction in headstock is lubricated by mechanical type of pump. Spindle rotation On either direction will activate the pump to supply lubricant. 3.5.4 Lubrication on tailstock Bed width 350mm there are two oil ball on the tailstock. Please add 10 drops of recommended lubricant to them.

  • Page 42: Chucks And Chuck Mounting

    3.6 Chucks and chuck mounting NOTICE Use only high-speed chucks which are capable of min. 3100RPM with these machines. 3.6.1 Chuck fitting on spindle nose When fit a D type chuck , it is necessary to fit a Back plate for chuck. Fitting the Back plate first, then fit the chuck on.

  • Page 43: Maintenance

    MAINTENANCE...

  • Page 44: Lubrication System

    4. MAINTENANCE 4.1 Lubrication system Check all the fitting of lubrication system under normal operation temperature. If oil leaking is founds, tighten the fittings. Inspect oil level daily. 4.1.1 Replacing headstock oil It is necessary to replace the oil for a new machine after one month. After first replacement, it is recommended to replace the oil every 1300 operation hours.

  • Page 45: Fittings

    9) Keep adding new lubricant into the lubricant tank to sustain the lubricant level. 10) After a while, turn off the lathe and the spindle. Disconnect the escape hose from the container, and then connect back to the lubricant tank. 4.1.2 Fittings Check all fittings after 500 hours of operation especially their tightness between tubes.

  • Page 46: Cross-Slide

    4.2.2 Cross slide lf the gibs between slide and saddle become loose, it will affect the machining You should regularly check and adjust them every six months according to the following steps. 1) Release the screw 1 2) Remove slide cover 2 as shown as figure shown, then the gibs can be seen. 3) Use flat head screw diver to release the adjust screw 3 about 1/2 circle 4) Tighten screw 4 about 1/2 circle CW.

  • Page 47: Adjusting Belt Tension Of Spindle

    Follow the following steps to re-align tailstock to the spindle. 1) Insert a gauge bar between the spindle and tailstock, attach the base of a test indicator to the saddle, and apply the stylus of the indicator to the surface of the bar, of its maximal difference for later adjustment. 2) Release the fixing screw 1 and adjust the adjusting screw 2 to fine the alignment.

  • Page 48: Control Units

    Spindle motor is equipped with IP. Therefore, no special care in required. Have qualified technician check and clean it every six months is OK. Other motors should be checked annually. 4.3.2 Control unit No special care is required. Cleaning CRT or TFT display and key board by using a clean cloth! No detergent soap should be applied.

  • Page 49: Remove Chip And Renew Coolant

    4.5 Remove chip and renew coolant 1) There is too much chip deposited in the machine or before the end of work every day. It is necessary to take a little time for removing the chip from the machine. First should turn off the power on the operate panel, and then opening the safety doors.

  • Page 50: Notice For Maintenance And Inspection

    4.6 Notice for maintenance and inspection Execute an emergency stop or switch off the main power supply before carrying out maintenance and inspection work. If the machine is still in an operable condition during this work and for example, a sensor is inadvertently touched, the machine may move due care is therefore required.
  • Page 51 1. Lubricating Oil and Supplying Coolant Always use the types of oil specified. Do not mix the oil of different brands even if they are indicated as the “equivalent oil”. Original maker will not be responsible for any problem arising from the use of oil not specified by + -. 2.
  • Page 52 c) Supply coolant from the top of coolant tank. 7. Greasing the Chuck Master Jaws a) Stop the spindle b) Supply grease from the three grease cups around the chuck. c) Coolant splashed on the chuck will wash away the grease. Therefore, supply grease as often as possible.

  • Page 53: Maintenance And Inspection List

    4.7 Maintenance and inspection list Cycle Inspection 1.Remove chip, dust and other foreign matter around the table base, saddle , tool length measuring device ,etc. 2.Wipe off lubrication, coolant and chip from the machine surface. 3.Wipe off all foreign matter from the slide ways not protected by the cover(base slide ways) 4.Clean the slide ways covers.
  • Page 54 correctly function. 7.Clean the in-line filter in the headstock lubrication unit. Monthly (250 H) 8.Check to be sure that wiring is properly done without Maintenance looseness or disconnection. 9.Check to be sure that the interlock devices and timers can function normally. 10.Drain the coolant , clean inside the tank and hose and then fill the coolant tank with new coolant.

  • Page 55: Chuck

    CHUCK...

  • Page 56: Instruction Manual

    5.1 INSTRUCTION MANUAL INTRODUCTION To ensure safe operation of your chuck Please read this instruction Manual and pay particular attentions marked with , including IMPORTANT instructions concerning chuck performance 5.1.1 SAFETY PRECAUTIONS Please read this manual and following indications carefully. DANGER 1.
  • Page 57 Handle. Danger of flying handle. CAUTION 1. Never attempt to hammer the chuck, jaws or clamped workpieces. Never strike a work piece, which is kept on the chuck, by a hammer or the likes, The accuracy and function of the chuck will be damaged, and its life span shortened remarkably as well.

  • Page 58: Specifications

    IMPORTANT 1. Frequently clean the chuck. 2. When repeat accuracy is required, it is desired to tighten with the same Pinion if it is the same diameter. 5.2 SPECIFICATIONS Unit：mm Gripping range(mm) Max. speed Model (r.p.m) SC-8 Ø4~ Ø 190 Ø...

  • Page 59: Maintenance And Inspection

    INPORTANT 1. Carefully mount the chuck with it stabilized by using the lifting belt or touching the chuck to the spindle. 2. Tighten the chuck mounting bolts with specified torque(unequal tightening will cause chuck run-out) 3. To install the chuck accurately, mount it so that the chuck run-out and face run-out are within 0.02mm(target 0.01mm or less).

  • Page 60: Trouble Shooting

    5.5 TROUBLE SHOOTING Trouble Cause Countermeasures Chuck part is damaged Disassemble and replace Chuck won’t start Disassemble and remove seized Slide part seized and repair or replace it Cutting powder or sward is Disassemble and clean entered into chuck Handle Rust occurs at slide part and Disassemble and remove the rotation is...
  • Page 61 ELECTRICAL DIAGRAM & ITS PARTS LIST For model ATL 1820E, ATL 1830E & ATL 1840E To order electrical parts, please have the following information ready: 1. Year of production 2. Model and serial number 3. Item number and description 4. Quantity To order the electrical components, please review separated “Electrical...
  • Page 62 7. Mechanical Drawings & Parts Breakdown List Note: When ordering parts, please be prepared with, 1. Machine model & serial number. 2. Item number. 3. Part number and description. 4. Year of Production. 5. Voltage & horsepower. 6. Quantity Page 7-1...
  • Page 63 CONTENTS PARTS LIST 7.1 HEADSTOCK _ 18TT, SPINDLE BORE 58mm (2”)．．．．． Page 7-3 7.2 BED & Z AXIS TRANSMISSION．．．．．．．．．．．． Page 7-8 7.3 CARRIAGE AND TOOLPOST ．．．．．．．．．．．．． Page 7-10 7.4 TAILSTOCK ．．．．．．．．．．．．．．．．．．．．． Page 7-13 Page 7-2...
  • Page 64 7.1 HEADSTOCK 58mm (2”) 1. HEADSTOCK _ 18, SPINDLE BORE Page 7-3...
  • Page 65 SPINDLE BORE 58mm (2”) Page 7-4...
  • Page 66 18 (2”) PARTS LIST OF HEADSTOCK Rev.2012.02.29 PARTS NO. DESCRIPTION Q’TY NOTE 18HT-001 HEADSTOCK 18HT-002 COVER 18HT-003 SPINDLE 18HA-037 COVER 18HT-005 GEAR 18HT-035 SPINDLE NUT 18HT-038 COVER 18HA-004-1 WASHER 18HA-005-1 V-PULLEY 18HA-006-A COVER 18HT-011 SHAFT 18HT-012 COVER 18HT-013 GEAR 18HT-014 GEAR 18HT-015 GEAR...
  • Page 67 18 (2”) PARTS LIST OF HEADSTOCK Rev.2012.02.29 PARTS NO. DESCRIPTION Q’TY NOTE 18HB-024-1 PLUG 18HT-036 SHAFT 18HB-025 WORM GEAR 18HB-026 BEVEL GEAR 18HT-046 SLEEVE 18HA-048 SOCKET SCREWS BEARING 6004ZZ BEARING 6005 BEARING 6007 BEARING 6008 BEARING 6015Z BEARING 6206 BEARING 6304 BEARING 6305 BEARING 6908 BEARING 32016XJ...
  • Page 68 7.1.2 MAIN SPINDLE TRANSMISSION PARTS LIST OF MAIN SPINDLE TRANS. PARTS NO. DESCRIPTION Q’TY NOTE PULLEY V BELT MOTOR SCREW MOTOR BASE SCREW Page 7-7...
  • Page 69 7.2 BED & Z-AXIS TRANSMISSION Page 7-8...
  • Page 70 PARTS LIST OF BED & Z-AXIS TRANSMISSION Rev. 2010.04.21 PARTS NO. DESCRIPTION Q’TY NOTE 18BT-001 STAND 18BT-002 BALL SCREW Z Axis 25CB-003 MOTOR BOARD 18BT-004 25CB-005 BRACKET 25CB-006 MOTOR BRACKET 25CB-007 BRG. COVER 25CB-008 COLLAR LOCK NUT M35*P1.5 25CB-010 SNAP COVER 25CB-011-1 PUELLY 25CB-013...
  • Page 71 7.3 CARRIAGE & CROSS SLIDE Page 7-10...
  • Page 72 PARTS LIST OF CARRIAGE & CROSS SLIDE Rev.2014.04.19 PARTS NO. DESCRIPTION Q’TY NOTE 18ST-001 CARRIAGE 25CS-002-1 CROSS SLIDE 25CS-003 25CS-004 GIB PLATE(BACK) 004-1 25CS-004-1 GIB PLATE(FRONT) 25CS-005 x-axis 25CS-006 BALL SCREW 25CS-007 BRACKET 008-1 25CS-008-1 TRANSMITTING BLOCK 008-2 25CS-008-2 TRANSMITTING BLOCK BRG.BASE 18ST-009 25CS-010...
  • Page 73 PARTS LIST OF CARRIAGE & CROSS SLIDE Rev.2014.04.19 PARTS NO. DESCRIPTION Q’TY NOTE CAP SCREW M6*45 CAP SCREW M8*40 CAP SCREW M8*30 CAP SCREW M8*45 CAP SCREW M6*15 CAP SCREW M6*30 CAP SCREW M6*10 SET SCREW M8*35 NUT M8*P1.25 SCREW M5*10 SCREW M8*25 SCREW M510 BEARING 6003...
  • Page 74 7.4 TAILSTOCK MANUAL TAILSTOCK _ Page 7-13...
  • Page 75 PARTS LIST OF MANUAL TAILSTOCK Rev.2015.03.12 ITEM PARTS NO. DESCRIPTION Q’TY NOTE 18TT-001 TAILSTOCK BODY 18T-002 BASE 17T-003 QUILL 18TT-004 SCREW 18TT-005 18TT-006 BRACKET 18TT-007 DIAL 18TT-008 NIPPING STUD 25T-010 WASHER 25T-011 ECCENTRIC LOCK STUD 25T-012 LOCKING LEVER 18T-013 CLAMPING BOLT 18T-014 CLAMPING BOLT 25T-015-1...
  • Page 76 PARTS LIST OF MANUAL TAILSTOCK Rev.2015.03.12 ITEM PARTS NO. DESCRIPTION Q’TY NOTE WASHER M10 WASHER M12 OIL SEAL 72*58*9 KEY 6*6*40 STEEL BALL Ø6 SPRING 6mm OIL STUFF (5/8”) Page 7-15...

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