background image

 9 

 

Read and understand the entire 

contents  of  this  manual  before  attempting  set-
up  or  operation.  Failure  to  comply  may  cause 
serious injury. 

5.0

  Set-up and assembly 

Open  shipping  container  and  check  for  shipping 
damage.  Report  any  damage  immediately  to  your 
distributor and shipping agent. Do not discard any 
shipping material until the Turret Mill is assembled 
and running properly.  

Compare  the  contents  of  your  container  with  the 
following parts list to make sure all parts are intact. 
Missing  parts,  if  any,  should  be  reported  to  your 
distributor. Read the instruction manual thoroughly 
for assembly, maintenance and safety instructions. 

If  your  mill  is  supplied  with  an  optional  Table 
Powerfeed  and/or  DRO,  be  sure  to  consult  the 
separate  instruction  materials  that  accompany 
them. 

5.1

  Contents of shipping container 

Note: Some parts may be pre-installed on the mill. 

 

Figure 5-1:  contents 

1  Turret Mill (not shown) 
1  Chip tray (not shown) 
1  Flat Way Cover  
1  Pleated Way Cover 
1  Draw Bar 
3  Table Adjustment Handles 
1  Tool Box, containing: 

4  Leveling pads 
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  Oil Can * 

1  Elevating Crank Handle 
1  Handwheel 
1  Coarse Feed Handle 
1  Lifting ring 
1  Electric box key 
1  Operator’s Manual  
1  Warranty Card 

*  parts with an asterisk are also included in the tool 
box  service  kits,  p/n  JTM1254VS-TB  and 
JTM1254RVS-TB. 

5.2

  Preparing the mill for service 

1.  Remove any crating which may be covering the 

machine on the pallet. 

2.  Remove  accessory  items  from  pallet  or 

machine table. Compare items with 

section 5.1

3.  Install provided lifting ring into tapped hole atop 

ram.  (

Note

:  If  your  mill  came  with  a  top-

mounted DRO, remove DRO from hole to install 
lifting  ring.  Reinstall  DRO  after  machine  has 
been  positioned.)  Check  lifting  ring  to 

be 

certain it is tight.

 

4.  Check tightness of lock handles on ram (C and 

E,  Figure  9-3)  to 

be  certain  ram  is  locked 

tight

5.  Remove nuts and bolts which secure machine 

to pallet. 

6.  Center  an  overhead  crane  or  other  suitable 

overhead  lifting  device  and  sling  arrangement 
over the lifting ring. 

Note:

 This machine weighs over 3000 pounds 

–  be  certain  lifting  arrangement  is  new  or  in 
excellent condition and has a safety factor that 
will  account  for  age,  difficulties  in  lifting,  etc. 
When lifting using the ring, the machine will tip 
forward.  If  you  wish,  you  can  minimize  this 
tipping  by  rigging  a  support sling  over  front  of 
machine. Be careful when doing this, to prevent 
sling from damaging any components on front 
of machine. Be sure to steady mill to prevent it 
from spinning. 

7.  Lift machine off pallet no higher than necessary 

to clear hold-down hardware, then pull pallet out 
of  the  way.  Do  NOT  get  hands  or  feet 
underneath machine when removing pallet! 

8.  Put  machine  base  over  hold-down  system 

where  machine  will  be  spotted.  Anchor  bolts 
(not provided) of sufficient size and length must 
be fastened to the floor according to footprint of 
mill. See Figure 4-1. 

Note:

 Figure 4-1 shows maximum dimensions 

of machines with table, ram, etc., fully extended 
in  all  possible  directions.  When  spotting 
machine, be certain to leave room not only for 
the  machine  itself,  but  also  for  operator 
clearance,  servicing  the  machine,  and  any 
unusual sizes of workpieces that might extend 
off the machine’s table. 

Содержание JTM-1254RVS

Страница 1: ...Parts Manual Variable Speed Turret Mill Models JTM 1254VS and JTM 1254RVS JET 427 New Sanford Road LaVergne Tennessee 37086 Part No M 690025 Ph 800 274 6848 Edition 5 08 2019 www jettools com Copyrigh...

Страница 2: ...e extreme caution and replace the guards immediately after completion of maintenance 14 Check damaged parts Before further use of the machine a guard or other part that is damaged should be carefully...

Страница 3: ...Familiarize yourself with the following safety notices used in this manual This means that if precautions are not heeded it may result in minor injury and or possible machine damage This means that i...

Страница 4: ...operation changing tooling 15 8 17 Clamping workpiece to table 16 9 0 Adjustments 16 9 1 Mill head left right adjustment 16 9 2 Positioning ram 17 9 3 Gib adjustment 17 9 4 Power feed trip lever mecha...

Страница 5: ...ervice 51 3 0 About this manual This manual is provided by JET covering the safe operation and maintenance procedures for the JET Model JTM 1254VS and JTM 1254RVS Turret Mill This manual contains inst...

Страница 6: ...190mm Collet Capacity 1 8 1 in 1 8 1 in Ram Travel maximum 20 4 in 518mm 20 4 in 518mm Table and Knee Table Size 12 x 54 in 305 x 1372mm 12 x 54 in 305 x 1372mm Longitudinal Table Travel maximum 28 1...

Страница 7: ...7 4 1 Machine dimensions JTM 1254VS and JTM 1254RVS Figure 4 1 Installation Diagram...

Страница 8: ...8 4 2 Overview and terminology JTM 1254VS and JTM 1254RVS Figure 4 2 Overview...

Страница 9: ...hine table Compare items with section 5 1 3 Install provided lifting ring into tapped hole atop ram Note If your mill came with a top mounted DRO remove DRO from hole to install lifting ring Reinstall...

Страница 10: ...awbar with spacer installed into spindle center through top of machine 17 Slide fine feed handwheel onto handwheel hub and push until its roll pin engages hole in hub and handwheel is flush with hub s...

Страница 11: ...ree seconds to force feed oil The lubricator remains active as long as milling machine is turned on To turn off lubricator while mill is on use top switch C Remember to turn lubricator on before opera...

Страница 12: ...motor or gear mechanism However it is recommended that switch be placed at neutral position and spindle allowed to come to a stop then switch moved to opposite direction B Coolant switch Turns on and...

Страница 13: ...er feed worm gear whenever power feed is not required This avoids unnecessary wear on worm gear Do not move Quill Power Feed Lever unless motor is at complete stop spindle off D Figure 8 1 When changi...

Страница 14: ...fine feed handwheel B Figure 8 7 back and forth to aid engagement If spindle is rotating clockwise in is downfeed out is upfeed If spindle rotation is counterclockwise out is downfeed in is upfeed Neu...

Страница 15: ...setting Feed Direction Knob C position per Table 3 Spindle Direction Feed Direction Knob Position CW Down In Up Out CCW Down Out Up In Table 3 9 Place Quill Feed Engagement Lever L in Engaged position...

Страница 16: ...Figure 9 1 2 Turn worm nut B Figure 9 1 to tilt head left or right as required Use scale on ram adapter to set desired angle Note Scales on ram adapter and for head rotation are guides only Close tol...

Страница 17: ...turn should be sufficient to allow turret to move Note Use gentle hand pressure to avoid rapid movement 2 Turn ram until spindle is in desired position Use scale on turret for degree measurement 3 Ti...

Страница 18: ...acklash adjustment Refer to Figure 9 6 The milling machine table 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 re...

Страница 19: ...19 Figure 9 6...

Страница 20: ...arings and back gear mechanism Refer to Figures 10 1 through 10 4 for lubrication requirements and access points Key Description Recommended Lubricant Action A Spindle bearing oil cup Mobil DTE Oil Li...

Страница 21: ...30 40 45 90 Malleable iron 37 45 45 90 Steel soft 60 90 75 105 Steel medium 454 67 52 75 Steel hard 24 37 55 75 Cast steel 24 30 55 75 Aluminum 240 300 300 360 Brass 105 180 150 300 Bronze 52 75 75 9...

Страница 22: ...22 12 1 1 JTM 1254VS Upper Head Assembly Exploded View...

Страница 23: ...mbly includes 18 27 28 1 28 JTM1254VS A28 Handle 1 29 JTM1254VS A29 Chain Axle 1 30 5509313 Spring Pin 4x16L 2 31 GA7X 865 Spring Pin 3x25L 1 32 JTM1254VS A32 Chain 1 33 JTM1254VS A33 Screw 1 34 JTM12...

Страница 24: ...ring Pin 3x20L 1 89 JTM949EVS A04 Hi Lo Detent Plate 1 90 JTM949EVS A05 Sleeve 1 91 JTM949EVS A06 Spring 1 92 JTM949EVS A08 Hi Lo Pinion Block 1 93 TS 1502031 Hex Socket Cap Screw M5x12 2 94 JTM949EVS...

Страница 25: ...escription Size Qty 132 TS 1502041 Hex Socket Cap Screw M5x16L 3 133 LM000005 Speed Range Label 1 134 JTM949EVS A91 Push Plate 1 135 JTM949EVS A92 Limit Switch 1 136 LM000182 Motor Label 1 137 JET 165...

Страница 26: ...26 12 2 1 JTM 1254RVS R8 Upper Head Assembly Exploded View...

Страница 27: ...embly includes 18 27 28 1 28 JTM1254RVS A28 Handle 1 29 JTM1254RVS A29 Chain axle 1 30 5509313 Spring Pin 4x16L 2 31 GA7X 865 Spring Pin 3x25L 1 32 JTM1254RVS A32 Chain 1 33 JTM1254RVS A33 Screw 1 34...

Страница 28: ...ion Shaft 1 88 B 56 Spring Pin 3x20L 1 89 JTM949EVS A04 Hi Lo Detent Plate 1 90 JTM949EVS A05 Sleeve 1 91 JTM949EVS A06 Spring 1 92 JTM949EVS A08 Hi Lo Pinion Block 1 93 TS 1502031 Hex Socket Cap Scre...

Страница 29: ...escription Size Qty 132 TS 1502041 Hex Socket Cap Screw M5x16 3 133 LM000005 Speed Range Label 1 134 JTM949EVS A91 Push Plate 1 135 JTM949EVS A92 Limit Switch 1 136 LM000182 Motor Label 1 137 JET 165...

Страница 30: ...30 12 3 1 JTM 1254VS Lower Head Assembly Exploded View...

Страница 31: ...ear 1 23 JTM1254VS B23 Bevel Gear Shaft 1 23 1 KF2R4445 Key 4x4x45L 1 24 JTM1254VS B24 Bevel Gear Bushing 1 25 JTM1254VS B25 Spacer 1 26 JTM1254VS B26 Feed Drive Gear TA2620Z 1 27 JTM1254VS B27 Bushin...

Страница 32: ...S B71 Feed Trip Bracket 1 72 JTM1254VS B72 Handwheel Clutch 1 73 5302731 Set Screw M8x6L 1 74 ETW6 Retaining Ring ETW6 1 75 JTM1254VS B75 Feed Reverse Stud 1 JTM1254VS B75A Feed Reverse Stud Assembly...

Страница 33: ...Set Screw M6x16L 1 109 TS 2311061 Hex Nut M6 1 110 STW22 Retaining Ring STW22 1 111 TS 1521071 Set Screw M4x20L 1 112 TS 1540021 Hex Nut M4 1 113 TS 1502051 Hex Socket Cap Screw M5x20L 1 114 TS 15400...

Страница 34: ...34 12 4 1 JTM 1254RVS R8 Lower Head Assembly Exploded View...

Страница 35: ...Indicator Rod 1 26 JTM949EVS B26 Indicator Rod Screw 1 27 JTM949EVS B27 Upper Bushing 1 28 JTM949EVS B28 Cluster Gear 1 29 KF2R4445 Key 4x4x45 1 31 JTM949EVS B31 Bevel Gear Shaft 1 32 STW16 Retaining...

Страница 36: ...er 1 98 STW10 Retaining Ring STW10 1 99 JTM949EVS B99 Clutch Arm Cover 1 100 TS 1523051 Socket Set Screw M6x16 1 101 TS 2311061 Hex Nut M6 1 102 5625391 Spring Pin 5x16 1 103 JTM949EVS B103 Cam Rod 1...

Страница 37: ...Lever 1 146 JTM949EVS B146 Trip Lever Pin 1 147 KF2R5525 Key 5x5x25 1 148 JTM949EVS B148 Quill Lock Sleeve 1 148 1 JTM949EVS B148 1 Spring 1 149 JTM949EVS B149 Lock Handle M8 1 150 TS 1533032 Pan Head...

Страница 38: ...38 12 5 1 JTM 1254VS Base Machine Exploded View...

Страница 39: ...Ram Cover 1 22 JTM1254VS C22 Strainer Net 2 23 JTM1254VS C23 Elevating Screw Housing 1 23 1 TS 1505071 Hex Socket Cap Screw M10x45L 2 24 JTM1254VS C24 Elevating Nut Inch 32 x 5 tpi 1 24 1 TS 1503051 H...

Страница 40: ...k Handle M12x25L 4 67 1 JTM1254VS C67 1 Table Lock Plunger 1 1 67 2 JTM1254VS C67 2 Table Lock Plunger 2 1 68 JTM1254VS C68 Gib 1 70 JTM1254VS C70 Chip Guard Bottom 680 mm 129x2 0T 1 71 JTM1254VS C71...

Страница 41: ...41 12 6 1 JTM 1254RVS R8 Base Machine Exploded View...

Страница 42: ...JTM1254VS C23 1 Hex Socket Cap Screw M10x45L 2 24 JTM1254VS C24 Elevating Nut Inch 32 x 5 Tpi 1 24 1 TS 1503051 Hex Socket Cap Screw M6x20L 6 25 JTM1254VS C25 Lead Screw Inch 35x5 Tpi 590 1 26 KF2R552...

Страница 43: ...C73 Knee Support Plate Right 1 74 JTM1254VS C74 Knee Support Plate Left 1 75 JTM1254VS C75 Gib 1 76 JTM1254VS C76 Hex Socket Cap Screw M14x35L 10 77 JTM1254RVS C77 Lock Stud 1 78 JTM949EVS C06 Adapter...

Страница 44: ...ring 6204ZZ 5 10 JTM949EVS D10 Bearing Bracket 60 2 11 5311251 Spring Pin 5x30 6 12 TS 1505011 Hex Socket Cap Screw M10x16 16 13 KF2R3325 Key 3x3x25 3 14 JTM1254VS D14 Lead Screw 32 x 5 tpi 1632 1 15...

Страница 45: ...t M5 4 10 TS 1550031 Flat Washer 5 4 11 JTM949EVS E12 Handle 1 12 TS 2245162 Socket Head Button Screw M5x16 4 JTM949EVS E14 Support Rod Unit Assembly includes 13 13 1 13 2 16 20 23 1 13 JTM1254VS E13...

Страница 46: ...TM949EVS F15 Terminal Block 1 11 JTM949EVS F21 Switch Bracket 1 12 JTM949EVS F05 1 Switch Interface 1 QS1 JTM949EVS F05 Door Switch includes 12 1 TC1 JTM949EVS F06 Transformer 400VA 1 KM1 JTM1254VS FK...

Страница 47: ...ck 1 5 JTM949EVS G07 Hose Fitting PT 3 8 x 1 2 90 1 6 JTM949EVS G06 Hose 1 2 1 7 JTM949EVS G07 Hose Fitting PT 3 8 x 1 2 90 1 8 JTM949EVS G08 Hose Clamp 5 6 11 20 2 9 JTM949EVS G09 Coolant Pump 1 8HP...

Страница 48: ...2101 Hex Socket Cap Screw M5x45 2 2 JTM949EVS H02 Support Plate 1 3 TS 2245102 Socket Head Button Screw M5x10 2 4 JTM949EVS H04 Bushing Bracket Re JTM949EVS H04A 1 JTM949EVS H04A Bushing Bracket Assem...

Страница 49: ...2L 0 180min 1 2 TS 1503061 Hex Socket Cap Screw M6x25L 2 3 JTM949EVS J03 Flexible Steel Tube 4 1 4 JTM949EVS J04 Elbow Adaptor 4 3 5 JTM949EVS J10 Oil Distributor 4 6 holes 2 6 JTM949EVS J06 Flexible...

Страница 50: ...50 13 0 Electrical Connections JTM 1254VS RVS 13 1 230V Wiring Diagram 13 2 460V Wiring Diagram...

Страница 51: ...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 Loc...

Страница 52: ...52 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com...

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