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4. Tighten the two nut locking screws.

5. Using one of the longitudinal table cranks,

move table to middle position.

6. Set up a dial indicator to check longitudinal

backlash. Gently move crank back and forth
while watching dial indicator. The backlash
should be between 0.003 inch and 0.005 inch.

7. If necessary, repeat the above steps to set

backlash.

Figure 14: Lead screw backlash adjustment

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Содержание JTM-1

Страница 1: ...ions and Parts Manual Step Pulley Turret Mill Model JTM 1 JTM 2 Model JTM 1 shown JET 427 New Sanford Road LaVergne Tennessee 37086 Part No M 690082 Ph 800 274 6848 Revision H 01 2016 www jettools com Copyright 2014 JET ...

Страница 2: ...tional action needed JET has Authorized Service Centers located throughout the United States For the name of an Authorized Service Center in your area call 1 800 274 6846 or use the Service Center Locator on the JET website More Information JET is constantly adding new products For complete up to date product information check with your local distributor or visit the JET website How State Law Appl...

Страница 3: ... feed operation 14 11 7 Draw bar operation changing tooling 15 12 0 Adjustments 15 12 1 Head movement left and right 15 12 2 Head movement Fore and aft 16 12 3 Positioning ram 16 12 4 Feed trip adjustment 16 12 5 Gib adjustment 17 12 6 Table lead screw backlash adjustment 17 13 0 Maintenance 19 13 1 Lubrication 19 13 2 Periodic Maintenance Activities 19 14 0 Belt position speed ranges 20 15 0 Repl...

Страница 4: ...ventilated area and work with approved safety equipment such as face or dust masks that are specifically designed to filter out microscopic particles 12 Do not operate this machine while tired or under the influence of drugs alcohol or any medication 13 Make certain the switch is in the OFF position before connecting the machine to the power supply 14 Make certain the machine is properly grounded ...

Страница 5: ...et locations or expose it to rain Keep work area well lighted 37 Some coolants used for machining contain chemicals that may be hazardous to your health if not used properly Read and understand all user information listed on the coolant container and protect yourself accordingly Familiarize yourself with the following safety notices used in this manual This means that if precautions are not heeded...

Страница 6: ...6 5 0 JTM 1 JTM 2 installation layout Figure 1 ...

Страница 7: ...6 0 0015 0 003 0 006 Spindle Travel 5 5 Head Movement 90 L and R 45 F and B 90 L and R 45 F and B Maximum Distance Spindle to Table 17 1 2 17 1 2 Maximum Distance Spindle to Column 19 19 Minimum Distance Spindle to Column 4 1 2 4 1 2 Collet Capacity 1 8 7 8 1 8 7 8 Ram Travel 13 3 8 13 3 8 Ram Rotation 90 L and R 90 L and R Table Table Size 9 x42 9 x42 Longitudinal Table Travel 23 7 8 23 7 8 Table...

Страница 8: ...tion box 10 Base 11 Filter screen x2 for use with optional flood coolant systems 12 Elevating leadscrew 13 Crossfeed handle 14 Knee crank handle 15 Pleated way cover 16 Table locking handle x2 17 Flat way cover 18 Spindle 19 Head Assembly see section 10 0 for explanation of controls 20 Motor junction box 21 Knee 22 Holes for mounting bolts x4 23 Knee locking handle x2 24 Saddle locking handle 25 O...

Страница 9: ... Note Some parts may be pre installed on the mill 1 Turret Mill not shown 1 Flat Way Cover 1 Pleated Way Cover 1 Draw Bar 3 Table Adjustment Handles 2 Belt Guards 1 Tool Box containing Figure 3 1 Hex Key Set 1 5 10mm 1 17 19mm Box Wrench 1 Cross Point Screw Driver 2 1 Flat Blade Screw Driver 2 1 Plastic Oil Bottle 1 Elevating Crank Handle 1 Handwheel 1 Coarse Feed Handle 1 Can White Touch Up Paint...

Страница 10: ...each counterclockwise just enough to allow rotation of head 2 Apply upward pressure on motor by hand to relieve pressure on worm mechanism and use supplied wrench to turn worm nut and raise head to upright position 3 Slightly tighten nuts A Figure 9 not torqued just snug Before operating mill follow procedures in section 12 1 to verify angle settings and properly tighten the four nuts 4 Use minera...

Страница 11: ...dicated 10 amp circuit with a circuit breaker or time delay fuse Connect the JTM 2 using 230 volt power to a dedicated 40 amp circuit with circuit breaker or time delay fuse and the JTM 2 with 115 volt power to a dedicated 30 amp circuit with circuit breaker or time delay fuse Local codes take precedence over recommendations 9 1 Wire Sizes For circuits which are far away from the electrical servic...

Страница 12: ...H Figure 5 For setting specific spindle depth Each graduation on the nut represents 0 001 of depth and corresponds to the adjacent scale I Feed Trip Lever I Figure 5 Engages overload clutch on pinion shaft when positioned to the left Stays engaged until quill stop comes into contact with micrometer adjusting nut forcing feed trip lever to drop out automatically or until lever is released manually ...

Страница 13: ...ange selector B Figure 5 in high position facing operator This may cause gearing system to bind up 11 2 Clamping workpiece to table 1 The worktable has 5 8 inch T slots for clamping work piece to table 2 Set switch to OFF position 3 Place work piece on table 4 Clamp work piece using T slot clamps studs and step blocks as required Figure 6 Figure 6 11 3 Changing speed range Rotate spindle by hand t...

Страница 14: ...t Quill Stop L 5 Continue turning Micrometer Adjusting Nut H until Feed Trip Lever I trips 6 Tighten Locknut H 7 Disengage Quill Lock G by rotating counterclockwise 8 Start spindle by turning switch N 9 Set Feed Rate Lever M to the feed rate required for the tooling and material used 10 Place Quill Feed Engagement Lever E in the Engaged position 11 Select feed direction by setting the Feed Directi...

Страница 15: ...ation are guides only Close tolerance work will require use of a dial indicator to make sure head is 90 to table in X and Y axes Please note the table is fitted to be slightly higher in front usually about 0 0005 Be sure to apply torque in two steps using a crossing pattern Failure to do so could distort the face of the ram adapter 3 Tighten the four hex nuts Tighten in two steps using a calibrate...

Страница 16: ...t above procedure until dial indicator reads zero in both positions i When indicator reads zero tighten ram adapter locking bolts A Figure 10 12 3 Positioning ram 12 3 1 Sliding ram fore and aft 1 Loosen two bolts A Figure 11 that lock ram to its ways Figure 11 Ram positioning 2 Turn lever B Figure 11 to move ram on its ways 3 When desired position is reached lock bolts A Figure 11 securely 12 3 2...

Страница 17: ...is moved by a lead screw and nut for each machine axis For proper operation there must be clearance between lead screw and nut which results in backlash A second feed screw nut is provided to eliminate most of the backlash The following procedures provide instructions for obtaining acceptable backlash 12 6 1 Cross feed backlash adjustment Refer to Figure 14 1 Use cross feed crank to move table to ...

Страница 18: ...ble to middle position 6 Set up a dial indicator to check longitudinal backlash Gently move crank back and forth while watching dial indicator The backlash should be between 0 003 inch and 0 005 inch 7 If necessary repeat the above steps to set backlash Figure 14 Lead screw backlash adjustment ...

Страница 19: ... during operations Mobil Vactra Oil 2 or equivalent lubricant designed for slideways D Knee elevating screw grease fitting Service weekly with lube gun Mobilith AW2 or equivalent NLGI 2 grease Table surface and other exposed metal surfaces Wipe down after use Light coat of oil for rust protection Mobil DTE Oil Light or equivalent E Speed range selector Oil cam ring slot weekly Mobil DTE Oil Light ...

Страница 20: ...ment parts are listed on the following pages To order parts or reach our service department call 1 800 274 6848 Monday through Friday 8 00 a m to 5 00 p m CST Having the Model Number and Serial Number of your machine available when you call will allow us to serve you quickly and accurately ...

Страница 21: ...21 15 1 1 Upper Head Assembly Exploded View ...

Страница 22: ...1 27 JTM1 C27 Flat Head Screw 8 28 TS 0571072 Hex Jam Nut 5 8 18NF 1 29 LA 006 Plastic Ball 3 30 LA 074 Spindle Clutch Lever 1 31 LA 073 Cam Ring 1 32 JTM1 032 Cam Ring Pin 2 33 JTM1 C33 E Ring 1 34 LA 039 Brake Lock Handle 1 35 LA 038 Brake Lock Pin 1 36 TS 0680061 Washer 1 2 1 37 JTM1 037 Spindle Speed Plate JTM 1 1 JTM1 037A Spindle Speed Plate JTM 2 1 39 JTM1 039A Belt Guard 2 41 LA 012 Motor ...

Страница 23: ... M2 Motor not shown 2HP 3PH 220V 1 JTM1 598 Fwd Rev Switch not shown for 3PH 2 4P 1 JTM1 598A Switch Speed Plate not shown 1 JTM1 598B Switch Knob not shown 1 JTM1 598C Switch Bracket not shown 1 JTM1 598D Metal Switch Box not shown 1 JTM2 M1 Motor not shown 2HP 1PH 115 230V 1 JTM2 SC Start Capacitor 500MFD 125AC 1 JTM2 598CP Switch Assembly CP not shown 1 JTM2 599 Fwd Rev Switch not shown for 1PH...

Страница 24: ...24 15 2 1 Head Assembly Exploded View ...

Страница 25: ...144 Cluster Gear Assembly 1 29 HA 029 Cluster Gear Key 3x3x45mm 1 31 LA 143 Cluster Gear Shaft 1 32 HA 032 Snap Ring 2 33 LA 142 Bevel Gear Bushing 1 34 LA 141 Thrust Spacer 1 36 LA 156 Feed Drive Gear 1 37 HA 037 Key 3x3x10mm 1 40 LA 157 Feed Drive Gear 1 41 HA 041 Needle Bearing 1 42 LA 168 Bushing 1 43 LA 139 Worm 1 44 LA 138 Feed Worm Shaft Bushing 1 47 LA 137 Bevel Gear Thrust Spacer 1 48 LA ...

Страница 26: ...113 LA 129 Handwheel Clutch 1 114 SB 3 16 Steel Ball 3 16 2 115 HA 115 Spring 2 117 HA 117 Spring Pin 1 118 LA 093 Cam Rod Sleeve Assembly 1 121 LA 095 Trip Plunger 1 123 LA 121A Bushing 1 124 LA 097 Feed Trip Plunger 1 125 LA 126 Handwheel chrome 1 LA 126 BR Handwheel brushed finish 1 126 LA 125 Handle chrome 1 LA 125 BR Handle brushed finish 1 127 LA 050A Spindle 1 128 LA 060 Quill Skirt 1 129 L...

Страница 27: ... TS 0270021 Set Screw 5 16 x1 4 1 175 LA 106 Hub 1 176 LA 104 Hub Sleeve 1 LA 102 3 Clock Spring Assembly includes 177 178 1 177 LA 103 Spring Cover 1 178 LA 102 Clock Spring 1 179 TS 0680061 Washer 1 2 1 181 TS 1523011 Set Screw M6x6 2 183 LA 113 Lever 1 184 LA 114 Plunger 1 185 LA 124 Screw 1 186 LA 018 Worm Gear 1 188 LA 173 Set Screw 1 189 LA 019 Worm Shaft 1 190 LA 105 Handle 1 191 LB 017 Pla...

Страница 28: ...28 15 3 1 Base Assembly Exploded View ...

Страница 29: ...8 Spider 1 28 MB 000AG Column 1 29 JTM1 330A Table 1 30 LT 027 Stop Nut 2 31 LT 028 Table Stop 2 32 TS 1504071 Hex Socket Cap Screw M8 x 35 2 33 TS 1504031 Hex Socket Cap Screw M8 x 16 2 34 LK 002 Gib Adjusting Screw 6 35 LS 003 Table Stop Bracket 1 36 LS 008 Saddle Table Gib 1 37 LS 013 Felt Wiper 2 38 LS 005B Table Lock Plunger 16mm 2 39 LS 011 Saddle Lock Handle 5 40 LS 001 Saddle Knee Gib 1 41...

Страница 30: ...1 75 LK 003 Plunger 1 76 LK 081 Spring Pin 8 x 30 1 77 LS 010 Saddle Lock Plunger 1 83 MB 090 Screw 1 4 x 3 8 4 84 MK 038 Bushing 1 86 MB 004 Cover 1 87 MB 041 Strainer Screen 2 98 RIBW34 Hoisting Ring 1 99 LB 036 Worm Thrust Washer 1 100 LB 033 Thrust Washer 1 102 LK 003 Lock Plunger 1 104 TS 1503051 Hex Socket Cap Screw M6 x 20 6 105 KEY3320 Key 3x3x20mm 1 106 MB 00BG Turret Scale 1 107 LS 006B ...

Страница 31: ...3021 Hex Socket Cap Screw M6 x 12 3 8 LT 005 Bearing Retainer Ring 3 9 BB 6204ZZ Ball Bearing 3 10 LT 002 Bearing Bracket 2 11 LS 009 Spring Pin 5 x 30 8 12 TS 1505031 Hex Socket Cap Screw M10 x 25 16 13 BD920 A04 Key 3 x 3 x 25 3 14 MT 015B Longitudinal Feed Screw 1 15 TS 1503041 Hex Socket Cap Screw M6 x 16 10 16 TS 1550051 Washer M7 4 17 MT 019B Feed Screw Nut Set includes 17 1 1 18 MT 017 Feed...

Страница 32: ...d Oiler Sight Glass with gasket 1 2 ALMP 04 Aluminum Pipe 3 5M 1 ALMP 04 VS Oil Line Set w Fittings 1 3 DB 4 Oil Regulating Distributor 1 4 PKD 4 T Joint 1 5 FHC 404 Flexible Steel Tube 1 6 PH 1 1 PB 4 Check Joint 2 7 PH 4 Elbow Joint 2 8 PA 4 PB 4 Straight Joint 14 9 PG 004 Union 1 10 JTM4VS BUTW1458 Screw 4 11 TS 1503061 Hex Socket Cap Screw M6 x 25 2 12 TS 1502061 Hex Socket Cap Screw M5 x 25 1...

Страница 33: ...33 16 0 Electrical Connections ...

Страница 34: ...34 This page intentionally left blank ...

Страница 35: ...35 This page intentionally left blank ...

Страница 36: ...36 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com ...

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