Jet JMD-40GHPF, JMD-45GH, JMD-45GHPF, JMD-40GH Operating Instructions And Parts Manual

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Operating Instructions and Parts Manual

Geared Head Mill-Drill Machines

Models: JMD-40GH, JMD-40GHPF, JMD-45GH, JMD-45GHPF

JET

JMD-45GHPF

JMD-40GH

1.0 IMPORTANT SAFETY

INSTRUCTIONS

WARNING – To reduce risk of injury:

1. Read and understand the entire owner's manual before attempting assembly or operation.

2. 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.

3. Replace the warning labels if they become obscured or removed.

4. This mill-drill machine is desi gned and intended for use by properly trained and experienced personnel only. The manual is not, nor was it intended to be, a training manual. If you are not familiar with the proper and safe operation of a mill-drill, do not use until proper training and knowledge have been obtained.

5. Do not use this mill-drill for other than its intended use. If used for other purposes, JET disclaims any real or implied warranty and holds itself harmless from any injury that may result from that use.

6. Always wear protective eye wear when operating machinery. Eye wear shall be impact resistant, protective safety glasses with side shields which comply with ANSI Z87.1 spe cificati ons. Use of eye wear which does not comply with ANSI Z87.1 specifications could result in severe injury from breakage of eye protection. (Ev eryday ey eglasses only have impact resistant lenses; they are NOT safety glasses.)

7. Before operating this machine, remove tie, rings, watches and other jewelry, and roll sleeves up past the elbows. Do not wear loose clothing. Confine long hair. Non-slip footwear or anti-skid floor strips are recommended. Do not wear gloves.

8. Wear ear protectors (plugs or muffs) if sound exceeds safe levels.

9. CALIFORNIA PROPOSITION 65 WARNING: This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive harm.

10. This product, when used for welding, cutting, or working with metal, produces fumes, gases, or dusts which contain chemicals known to the State of California to cause birth defects and, in

some cases, cancer. (California Health and Safety Code Section 25249.5 et seq.)

11. Make certain the switch is in the OFF position before connecting the machine to the power supply.

12. Make certain the machine is properly grounded.

13. Make all machine adjustments or maintenance with the machine unplugged from the power source.

14. Remove adjusting keys and wrenches. Form a habit of checking to see that keys and adjusting wrenches are removed from the machine before turning it on.

15. Keep safety 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 after completion of maintenance.

16. Check damaged parts. Before further use of the machine, a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform its intended function. Check for alignment of moving parts, binding of moving parts, breakage of parts, mounting and any other conditions that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced.

17. Provide for adequate space surrounding work area and non-glare, overhead lighting.

18. Keep the floor around the machine clean and free of scrap material, oil and grease.

19. Keep visitors a safe distance from the work area. Keep children away.

20. Make your workshop child proof with padlocks, master switches or by removing starter keys.

21. Give your work undivided attention. Looking around, carrying on a conversation and “horseplay” are careless acts that can result in serious injury.

22. Maintain a balanced stance at all times so that you do not fall into the blade or other moving parts. Do not overreach or use excessive force to perform any machine operation.

23. Use the right tool at the correct speed and feed rate. Do not force a tool or attachment to do a job for which it was not designed. The right tool will do the job better and more safely.

24. Feed work into a blade or cutter against the direction of rotation of the blade or cutter only.

25. Use recommended accessories; improper accessories may be hazardous.

26. Maintain tools with care. Keep cutters sharp and clean for the best and safest performance. Follow instructions for lubricating and changing accessories.

27. Turn off the machine before cleaning. Use a brush or compressed air to remove chips or debris — do not use bare hands.

28. Do not stand on the machine. Serious injury could occur if the machine tips over.

29. Never leave the machine running unattended. Turn the power off and do not leave the machine until it comes to a complete stop.

30. Remove loose items and unnecessary work pieces from the area before starting the machine.

31. Do not perform any setup work while machine is operating.

32. Do not place hands near cutter while machine is operating.

Familiarize yourself with the following safety notices used in this manual:

33. Don’t use in dangerous environment. Don’t use power tools in damp or wet location, or expose them to rain. Keep work area well lighted.

34. All work shall be secured using either clamps or a vise to the drill press table. It is unsafe to use your hands to hold any workpiece being drilled.

35. Use proper extension cord. Make sure your extension cord is in good condition. When using an extension cord, use one heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating. Sect.

6.3, Table 2 shows correct size to use depending upon cord length and nameplate ampere rating. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier the cord.

This means that if precautions are not heeded, it may result in minor injury and/or possible

machine damage.

This means that if precautions are not heeded, it may result in serious, or possibly even fatal,

injury.

1.1 Switch lock-out

To prevent unauthorized use or accidental starting of the Mill-Drill, insert padlock (not provided) through holes in switch. See Figure 1-1. Store key in a secure place.

Figure 1-1

2.0 Table of contents

Section Page

1.0 IMPORTANT SAFETY INSTRUCTIONS ....................................................................................................... 2

1.1 Switch lock-out ........................................................................................................................................... 3

2.0 Table of contents ............................................................................................................................................ 4

3.0 About this manual .......................................................................................................................................... 5

4.0 Specifications ................................................................................................................................................. 6

4.1 Mounting hole centers ................................................................................................................................ 7

5.0 Setup and assembly ....................................................................................................................................... 8

5.1 Shipping contents ....................................................................................................................................... 8

5.2 Tools required for assembly ....................................................................................................................... 8

5.3 Unpacking and cleanup .............................................................................................................................. 8

5.4 Location ...................................................................................................................................................... 8

5.5 Assembly .................................................................................................................................................... 8

5.6 Lubrication .................................................................................................................................................. 9

6.0 Electrical connections .................................................................................................................................... 9

6.1 GROUNDING INSTRUCTIONS ................................................................................................................. 9

6.2 Voltage conversion ................................................................................................................................... 10

6.3 Extension cords ........................................................................................................................................ 10

6.4 Overload re-set button .............................................................................................................................. 10

7.0 Adjustments ................................................................................................................................................. 10

7.1 Removing and installing arbors ................................................................................................................ 10

7.2 Head adjustments .................................................................................................................................... 10

7.3 Table adjustments .................................................................................................................................... 11

7.4 Gib adjustments ....................................................................................................................................... 11

7.5 Spindle return ........................................................................................................................................... 11

8.0 Operation ..................................................................................................................................................... 12

8.1 Operating controls .................................................................................................................................... 12

8.2 Powerfeed operation (models 40GHPF and 45GHPF only) ..................................................................... 12

8.3 Manual coarse feed .................................................................................................................................. 13

8.4 Manual fine feed ....................................................................................................................................... 13

8.5 Basic milling procedure ............................................................................................................................ 13

9.0 User-maintenance ........................................................................................................................................ 13

9.1 General maintenance ............................................................................................................................... 13

9.2 Additional servicing .................................................................................................................................. 13

9.3 Lubrication ................................................................................................................................................ 14

10.0 Troubleshooting JMD-40GH/45GH series Mill-Drills .................................................................................. 15

11.0 Optional accessories .................................................................................................................................. 16

12.0 Replacement Parts ..................................................................................................................................... 16

12.1.1 JMD-40GH,-40GHPF Table, Base, and Column Assembly – Exploded View .................................... 17

12.1.2 JMD-40GH,-40GHPF Table, Base, and Column Assembly – Parts List ............................................. 18

12.2.1 JMD-40GH,-45GH (non-powerfeed) Gear Head Assembly – Exploded View .................................... 20

12.2.2 JMD-40GH,-45GH (non-powerfeed) Gear Head Assembly – Parts List ............................................. 21

12.3.1 JMD-40GH,-45GH (non-powerfeed) Gears As sembly – Exploded View ............................................ 24

12.3.2 JMD-40GH,-45GH (non-powerfeed) Gears Assembly – Parts List ..................................................... 25

12.4.1 JMD-40GHPF,-45GHPF (powerfeed) Gear Head Assembly – Exploded View .................................. 26

12.4.2 JMD-40GHPF,-45GHPF (powerfeed) Gear Head Assembly – Parts List ........................................... 27

12.5.1 JMD-40GHPF,-45GHPF (powerfeed) Gears Assembly- Exploded View ............................................ 30

12.5.2 JMD-40GHPF,-45GHPF (powerfeed) Gears Assembly – Parts List ................................................... 31

12.6.1 JMD-45GH,-45GHPF Table and Base Assembly – Exploded View .................................................... 32

12.6.2 JMD-45GH,-45GHPF Table and Base Assembly – Parts List ............................................................ 33

12.7.1 JMD-45GH,-45GHPF Square Column Assembly – Exploded View .................................................... 35

12.7.2 JMD-45GH,-45GHPF Square Column Assembly – Parts List ............................................................. 36

13.0 Electrical Connections, JMD-40GH/45GH series ....................................................................................... 37

13.1 Wiring Diagram 115V ............................................................................................................................. 37

13.2 Wiring Diagram 230V ............................................................................................................................. 38

14.0 Warranty and service ................................................................................................................................. 39

3.0 About this manual

This manual is provided by JET, covering the safe operation and maintenance procedures for the JET JMD40GH and JMD-45GH series Geared Head Mill-Drills. This manual contains instructions on installation, safety precautions, general operating procedures, maintenance instructions and parts breakdown. Your machine has been designed and constructed to provide consistent, long-term operation if used in accordance with the instructions as set forth in this document.

This manual is not intended to be a training guide for milling/drilling operations, or tool and workpiece selection. Consult a machinery handbook or shop supervisor for information on proper speed and feed rates for specific materials, or type of cutter or drill suitable for a particular operation. Whatever accepted methods or materials are used, always make personal safety a priority.

If there are questions or comments, please contact your local supplier or JET. JET c an also be reached at our web site: www.jettools.com.

Retain this manual for future reference. If the machine transfers ownership, the manual should accompany it. Note that illustrations in this manual may or may not show your exact machine model.

Read and understand the entire contents of this manual before attempting assembly or

operation! Failure to comply may cause serious injury!

Register your product using the mail-in card provided, or register online: http://www.jettools.com/us/en/service-and-support/warranty/registration/

4.0 Specifications

Table 1

Model number Stock number 351040 351041 351045 351046

Motor and Electricals

Motor type Totally-enclosed, fan-cooled, induction Horsepower 1.5 Phase single Voltage 115/230 (prewired 115V) Cycle 60 Hz Listed FLA (full load amps) 20 / 10 Starting amps Running amps (no load) Start capacitor 400MFD 125VAC Motor speed 1720 RPM Motor cord AWM 600V 15AWG Power cord SJT 3x3.31mm2 12AWG 300V, 6 ft. Power plug installed 20A (5-20P) LED work lamp 12V, 6W; separate 115V power cord SJT 3x18AWG, 6 ft. Recommended circuit size 1 20A / 15A Sound emission without load 2 70dB

Capacities

Spindle taper R8 Spindle rotation Forward/Reverse

Drilling capacity Face mill capacity Ø 4 in. (100mm)

End mill capacity Ø 3/4 in. (20mm) Swing 20-1/2 in. (520mm) 19-11/16 in. (500mm) Max. distance spindle to table 15-3/4 in. (400mm) 18-1/8 in. (460mm) Spindle travel (manual) 5 in. (130mm) Spindle travel (power feed) n/a 4-1/4 in. (107mm) n/a 4-1/4 in. (107mm) Number of spindle speeds 6 Range of spindle speeds 65, 130, 220, 480, 925, 1550 RPM Number of power feeds n/a 3 n/a 3

Range of power feeds n/a

Head pivot around column 360 deg. Head swivel 90 deg. left, 30 deg. right Max. table travel (longitudinal) 20-1/2 in. (520mm) Max. cross travel 8-1/4 in. (210mm)

Main materials

Column Cast iron Table Cast iron Head Cast iron

Dimensions

Quill diameter 3 in. (75mm) Column diameter 4-1/2 in. (115mm) n/a (square design) Table working surface (LxW) 32-1/4 x 9-1/2 in. (820 x 240mm) Number of T-slots 4 T-slot size (WxD) 5/8 x 1 in. (16 x 26mm) Base dime nsions

Mild steel 1-1/4 in. (32mm) Cast iron 1-1/2 in. (38mm)

JMD-40GH JMD-40GHPF JMD-45GH JMD-45GHPF

68A/34A

16.8A /8.4A

0.005, 0.007,

0.010 in.

(0.12/0.18/0.2mm)

24-1/4 x 15-15/16 in. (615 x 405mm) 26-11/16 x 15-15/16 in. (653 x 405mm)

n/a

0.005, 0.007,

0.010 in.

(0.12/0.18/0.2mm)

Overall assembled (LxWxH) 28 x 39-1/4 x 42-1/2 in.

Shipping dimensions (LxWxH) 29-3/4 x 37-1/2 x 49 in.

JMD-40GH JMD-40GHPF JMD-45GH JMD-45GHPF

29 x 36 x 50 in.

(709 x 995 x 1079 mm)

(736 x 914 x 1270 mm)

36 x 30 x 52 in.

(755 x 950 x 1242 mm)

(915 x 763 x 1320 mm)

Weights

Net weight 628 lb (285 kg) 655 lb (297 kg) 728 lb (330 kg) 754 lb (342 kg) Shipping weight 694 lb (315 kg) 721 lb (327 kg) 794 lb (360 kg) 820 lb (372 kg)

subject to local and national electrical codes.

The specified values are emission levels and are not necessarily to be seen as safe operating levels. As workplace conditions vary, this information is intended to allow the user to make a better estimation of the hazards and risks involved only.

L = length, W = width, H = height, D = depth n/a = not applicable

The specifications in this manual were current at time of publication, but because of our policy of continuous improvement, JET reserves the right to change specifications at any time and without prior notice, without incurring obligations.

4.1 Mounting hole centers

JMD-40 series JMD-45 series

Figure 4-1

Read and understand all

assembly and setup instructions before attempting assembly. Failure to comply may cause serious injury.

5.2 Tools required for assembly

Cross-point (Phillips) screwdriver 14mm open-end (or adjustable) wrench 3mm and 5mm hex wrenches (provided)

5.0 Setup and assembly

5.1 Shipping contents

See Figure 5-1 1 Mill-Drill (not shown)

2 Drill arbor (pre-installed) 1 Draw bar R8-7/16 in. (pre-installed) 3 Handwheels – A 1 Face mill cutter assembly 3in. (74mm) – B 1 Face mill cutter arbor – C 4 Small handles – D 1 Crank handle – E 3 Downfeed handles – F (non-powerfeed models

only)

1 Drill chuck with key 13mm/JT6 – G 1 Socket wrench – H 1 Box wrench 17/19mm – H1 3 Hex wrenches, 3/4/5mm – J 1 Hardware package (see sect. 12.1.2):

2 Bolts – K 2 Flat washers – L

2 Hex nuts – M 1 Socket hd cap screw 3/8x1 – N 1 Flat washer 3/8 – O 1 Angle vise 3-inch – P 1 Operating instructions and parts list 1 Product registration card

5.3 Unpacking and cleanup

1. Inspect contents for shipping damage. Report damage, if any, to your distributor. Do not discard shipping materials until Mill-Drill is installed and running properly.

2. Compare contents of shipping carton with the contents list in this manual. Report shortages, if any, to your distributor. Note: Check machine first in case some parts are pre-installed.

3. Remove rust protectant from exposed surfaces with a clean rag and cleaner/degreaser or kerosene. Avoid getting solvents on rubber or plastic parts.

4. Apply a light coat of oil to exposed metal surfaces to inhibit rust.

5.4 Location

Machine is heavy; use appropriate lifting device and exercise caution when moving to final location. Failure to comply may cause serious injury.

1. The location for the mill-drill should be dry, with

good overhead lighting and room enough for head to rotate 360° around column, for maximum table travel, loading and offloading of stock, and general maintenance.

2. Before bolting mill-drill to a bench or stand, the

unit must be level: Place a level on table in both directions. If table is not level, shim under the low corner(s) until level. Tighten fastening bolts. (See Figure 4-1 for mounting hole spacing.)

3. Check for level again. Adjust as necessary until

mill-drill is level after fastening hardware has been tightened.

NOTE: An optional stand is available from JET, see

sect. 11.0.

Figure 5-1: contents (not to scale)

5.5 Assembly

See Figure 5-1 to identify parts.

1. Screw three downfeed handles (F) into hub and

tighten. Flat spot on rod accommodates an open or adjustable wrench. Note: Handle shafts are already installed into hub on powerfeed models.

2. Slide crank (E) onto shaft of column (see Figure

7-2) and tighten set screw. Make sure set screw

seats on flat part of shaft.

3. Thread handle (D) into crank and tighten nut.

4. Slide handwheels (A) onto shafts at front and both ends of table. If needed, tap with rubber mallet to seat handwheels onto shafts. Tighten set screws.

5. Thread handle (D) onto each handwheel and tighten nut.

6. Loosen lock handles/nuts (Q or R, Figure 7-2) and raise head using crank (E) to remove shipping block from table.

5.6 Lubrication

The Mill-Drill must be checked for proper lubrication before operating. See sect.9.3.

6.0 Electrical connections

Electrical connections must be made by a qualified electrician in compliance with all relevant codes. This machine must be properly grounded to help prevent electrical shock and possible fatal injury.

The Mill-Drill is rated at 115/230V power, and is prewired for 115 volt. The machine is provided with a plug designed for use on a circuit with a grounded outlet that looks like the one pictured in A, Figure 6-

1. Before connecting to power source, be sure switch

is in off position. It is recommended that the Mill-Drill, when operated

on 115V, be connected to a dedicated 20 amp circuit with circuit breaker or fuse. When operated on 230V power, connect it to a dedicated 15 amp circuit with circuit breaker or fuse. If connected to a circuit protected by fuses, use time delay fuse marked “D”.

NOTE: Local codes take precedence over recommendations.

6.1 GROUNDING INSTRUCTIONS

This machine must be grounded. In the event of a malfunction or breakdown, grounding provides a path of least resistance for electric current to reduce the risk of electric shock. This tool is equipped with an electric cord having an equipment-grounding conductor and a grounding plug. The plug must be plugged into a matching outlet that is properly installed and grounded in accordance with all local codes and ordinances.

Do not modify the plug provided - if it will not fit the outlet, have the proper outlet installed by a qualified electrician.

necessary, do not connect the equipment-grounding conductor to a live terminal.

Check with a qualified

electrician or service personnel if the grounding instructions are not completely understood, or if in doubt as to whether the tool is properly grounded. Failure to comply may cause ser ious or fatal injury.

Use only 3-wire extension cords that have 3-prong grounding plugs and 3-pole receptacles that accept the tool's plug.

Repair or replace damaged or worn cord immediately.

Grounded, cord-connected tools intended for use on a supply circuit having a nominal rating less than 150 volts:

This tool is intended for use on a circuit that has an outlet that looks like the one illustrated in A, Figure 6-1. An adapter, shown in B and C, may be used to connect this plug to a 2-pole receptacle as shown in B if a properly grounded outlet is not available. The temporary adapter should be used only until a properly grounded outlet can be installed by a qualified electrician. The green-colored rigid ear, lug, and the like, extending from the adapter must be connected to a permanent ground such as a properly grounded outlet box. Note: In Canada, the

use of a temporary adaptor is not permitted by the Canadian Electrical Code, C22.1.

Grounded, cord-connected tools intended for use on a supply circuit having a nominal rating between 150

- 250 volts, inclusive:

This tool is intended for use on a circuit that has an outlet that looks like the one illustrated in D, Figure 6-1. The tool is intended to be used with a grounding plug that looks like the plug illustrated in D. Make sure the tool is connected to an outlet having the same configuration as the plug. No adapter is available or should be used with this tool. If the tool must be reconnected for use on a different type of electric circuit, the reconnection should be made by qualified service personnel; and after reconnection, the tool should comply with all local codes and ordinances.

Improper connection of the equipment-grounding conductor can result in a risk of electric shock. The conductor with insulation having an outer surface that is green with or without yellow stripes is the equipment-grounding conductor. If repair or replacement of the electric cord or plug is

Figure 6-1

6.2 Voltage conversion

To convert machine to 230 volt operation:

1. Change incoming power leads according to

wiring diagram on inside cover of motor junction box.

2. Replace plug on end of motor cord with a

UL/CSA listed plug rated for 230V; or hardwire the machine.

6.3 Extension cords

The use of extension cords is discouraged; try to position equipment within reach of the power source. If an extension cord becomes necessary, be sure it is heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating.

Table 2 shows recommended size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier the cord.

4. Tap drawbar head with rubber mallet to dislodge arbor.

Do not loosen drawbar

more than 3 or 4 turns before hitting with rubber mallet. Damage to drawbar threads may occur.

5. Grasp arbor with one hand while loosening drawbar with the other. Continue to loosen drawbar until arbor can be withdrawn from spindle. Wipe out spindle with clean, dry rag.

6. Wipe new arbor with clean, dry rag and place arbor into spindle. Thread drawbar into arbor from above. Tighten drawbar with wrench. Do not overtighten.

Ampere Rating

More Than

0 6 18 16 16 14 6 10 18 16 14 12 10 12 16 16 14 12

12 16 14 12

Not More Than

Volts 120

240 AWG

Total length of cord in feet

100

200

Not Recommended

150 300

Table 2: Extension Cord Recommendations

6.4 Overload re-set button

If the Mill-Drill becomes overloaded and motor shuts off, wait for machine to cool down, then push re-set button on motor junction box. Restart machine. If overloading happens frequently, refer to sect. 10.0, Troubleshooting.

7.0 Adjustments

Disconnect machine from power source before making adjustments, unless indicated otherwise.

7.1 Removing and installing arbors

1. Disconnect machine from power source.

2. Remove spindle cap to expose drawbar (Figure

7-1)

3. Loosen drawbar with provided socket wrench

counterclockwise 2 or 3 full turns.

Figure 7-1

7.2 Head adjustments

See Figure 7-2.

7.2.1 Head elevation

Loosen two hex nuts (Q, JMD-40) or handles (R, JMD-45). Turn crank handle (E) clockwis e to raise head on column, counterclockwise to lower head. Always tighten nuts/handles securely before milling or drilling operations.

7.2.2 Head rotation (JMD-40GH/GHPF)

Applicable only to JMD-40 models. Loosen two lock nuts (Q) with 24mm wrench, and rotate head around column. Make sure rack moves with head without binding. Retighten both lock nuts (Q) securely.

7.2.3 Head swivel

1. To swivel head up to 90° left or 30° right, loosen lock nut (S) on each side, and remove locating pin (T).

2. Swivel head to desired angle on scale. Retighten both lock nuts.

3. When returning head to vertical position (0deg.), re-insert locating pin (T) and securely tighten both lock nuts (S).

Figure 7-2: head adjustments

7.3 Table adjustments

See Figure 7-3. For X-axis longitudinal feed, loosen table locks (L

and use side handwheel (L locks (C

) should be kept tight.

). The cross feed table

For Y-axis cross feed, loosen table locks (C use front handwheel (C table locks (L

) should be kept tight.

). The longitudinal feed

The scales can be adjusted by loosening screw (T and rotating scale to align with indicator.

The stops (T

) can be adjusted to any point along

the longitudinal axis. Retighten screws after positioning.

) and

)

7.4 Gib adjustments

7.4.1 Table gibs

See Figure 7-3. Gibs have been properly adjusted by the

manufacturer. After a period of time, however, movement of the table over the ways will cause normal wear and some “play” between components. To adjust gibs to eliminate this play, proceed as follows.

1. The X-axis gib adjustment screw (XG, Figure 7-

3) is found on right side of saddle beneath table. The Y-axis gib adjustment screw (YG, Figure 7-

3) is found to the right on the table face.

2. Turn each screw slightly clockwise to tighten. Turn table handwheels to check tension; slight drag should be felt during movement.

3. Re-adjust as required.

7.4.2 Column gib (JMD-45 series only)

A Z-axis gib adjustment screw is located atop the square column near oil cup (see Z, Figure 7-2). Follow same principle as described under sect.

7.4.1. Slight drag should be felt when turning crank

handle.

7.5 Spindle return

The spindle return is pre-set by the manufacturer and should not require adjustment. If spring tension becomes a future issue due to wear, proceed as follows.

See Figure 7-4.

1. Loosen knob (A) just enough to rotate spring

cap (B) past pin (C) and settle it on the next notch. DO NOT remo ve spring cap or allow it to rotate freely in your hand, or spring may unwind.

2. Rotate spring cap clockwise to decrease

spring tension; counterclockwise to increase.

3. Tighten knob (A).

Figure 7-3: table and gib adjustments

Figure 7-4: spindle return spring adjustment

8.0 Operation

8.1 Operating controls

Refer to Figure 8-1 (non-powerfeed models) or Figure 8-2 (powerfeed models).

Depth stop and scale. Non-powerfeed models: Turn knurled knob (A desired mark on scale. Powerfeed models: Turn scale (A (A

) to desired depth, and tighten lock handle

Downfeed handle (B). Counterclockwise movement advances quill toward table. When released, return spring retracts quill. CAUTION: Handle will spring back if released, and will rotate during retraction.

Fine feed engagement knob (C). Non-powerfeed models only. Tighten knob to engage fine feed

handwheel (D). Loosen knob to use downfeed handle.

Fine feed handwheel (D). Non-powerfeed models: To engage, tighten knob (C). Powerfeed models: To engage, turn downfeed dial (H) to zero, loosen knob (J), and push feed handle (B) outward.

Fwd/Off/Rev switch (E). Activates spindle rotation and selects rotation direction.

Spindle lock handle (F). Turn clockwise to lock spindle in position, counterclockwise to release.

Speed Levers (G). Select speed according to chart on control plate. A similar chart is shown as Table 3. While moving speed levers, turn spindle by hand to ensure proper gear engagement.

) until pointer (A2) reaches

Figure 8-1: operating controls (non-PF models)

Figure 8-2: operating controls (PF models)

8.2 Powerfeed operation (models

40GHPF and 45GHPF only)

Turn switch to OFF before

changing speed. Failure to comply may damage gear mechanism.

RPM Levers

130 2

220 3

480 1 925 2

1550 3

= black = red

Table 3: speed selection

Downfeed dial (H). Powerfeed models only. Select among three feed rates. Must be set to zero when using fine feed handwheel.

Powerfeed disengagement knob (J). Powerfeed models only. Tighten to prevent powerfeed

engagement and fine feed engagement. Loosen to allow downfeed handles (B) to be pushed outward into powerfeed and fine feed position.

Turn machine OFF before

selecting speed and initial powerfeed settings. Failure to comply may damage gear mechanism.

See Figure 8-2.

1. Disengage spindle lock (F).

2. Select appropriate spindle speed (G).

3. Select downfeed rate (H).

4. Loosen handle (A

) and rotate collar (A3)

counterclockwise to desired depth on scale. OR… lower spindle to desired depth and set

collar to zero on scale.

5. Tighten handle (A

) to secure setting.

6. Loosen powerfeed disengagement knob (J).

7. Turn on machine and pull downfeed handle (B) away from column to activate power downfeed.

8. Once downfeed has reached pre-set depth, the trip will release and spindle will retract.

9. To stop feed before cycle has ended, push handle (B) toward head.

NOTE: Set downfeed dial (H) to zero when not using powerfeed.

8.3 Manual coarse feed

Non-powerfeed models (Figure 8-1):

1. Disengage spindle lock (F) and loosen lock knob (C).

2. Select spindle speed (G).

3. Set drill depth (A

4. Turn on machine and engag e workpiece using downfeed handle (B).

Powerfeed models (Figure 8-2):

1/A2

(N and O, Figure 5-1). Install arbor into spindle using procedure in sect. 7.1.

For best results, all milling operations should be performed with cutter raised as close to head assembly as possible.

1. Adjust depth stop to highest position.

2. Engage fine feed handwheel, and turn it to set milling height.

3. Tighten spindle lock (F, Figures 8-1,8-2) at desired height.

4. See sect. 7-3 for table movements.

Lock spindle in position before

attempting milling operations.

1. Disengage spindle lock (F).

2. Set feed rate to “0” on dial (H).

3. Select spindle speed (G).

4. Set drill depth (A

5. Tighten thumb screw (J) to prevent auto downfeed engagement.

6. Turn on machine and engag e workpiece using downfeed handle (B).

3/A4

8.4 Manual fine feed

Non-powerfeed models (Figure 8-1):

1. Disengage spindle lock (F).

2. Tighten lock knob (C).

3. Select spindle speed (G).

4. Rotate fine feed handwheel (D). Scale is 0.001 inch increments.

Powerfeed models (Figure 8-2):

1. Disengage spindle lock (F).

2. Set feed rate to “0” on dial (H).

3. Set depth scale (A to exceed the desired depth to prevent premature stopping of feed.

4. Select spindle speed (G).

5. Pull handles (B) into powerfeed position.

6. Turn fine feed handwheel (D) to accomplish operation. Fine feed scale is 0.001 inch graduations. If depth reaches pre-set stop, fine feed will disengage and spindle will retract. To disengage fine feed at any time, push handle (B) toward head.

) to desired stop; or set it

3/A4

9.0 User-maintenance

Always disconnect power to machine before performing maintenance. Failure to do this may result in serious personal injury.

9.1 General maintenance

1. After each use, wipe down machine with a clean

rag and apply light coat of oil to exposed metal surfaces.

2. Periodically check for backlash, or “play”, in

table and head movements. If handles or handwheels are turned an appreciable amount before they seem to engage, or there is a looseness in table or head movements, make adjustments using gib screws. See sect. 7.4.

3. Keep table and ways clean and free of debris.

Use a brush to clear shavings, not bare hands.

4. Make sure machine remains properly

lubricated. See sect. 9.3.

9.2 Additional servicing

Any additional servicing should be performed by authorized service personnel.

8.5 Basic milling procedure

The Mill-Drill is provided with a face mill cutter with tungsten carbide inserts. Install cutter onto mill arbor, and secure with socket cap screw and washer

9.3 Lubrication

Note: Spindle bearings are sealed and do not require further lubrication.

Location (see Figure 13-1)

Applicable

model

Recommended lubricant

(an equivalent may be us ed)

Ball oiler, handwheels (L1) all Mobil DTE® Oil Heavy Medium Once daily

Ball oiler, front of table (L2) all Mobil DTE® Oil Heavy Medium Once daily Ball oiler, crank handle (L3) JMD-40 Mobil DTE® Oil Heavy Medium Once daily Ball oiler for powerfeed (L4) JMD-45 Mobil DTE® Oil Heavy Medium Once daily

Way s (L5) all

Mobil DTE

Rack (L6) JMD-40 Mobilith® AW2

Column (L7) JMD-40

Mobil DTE

Oil cups (L8) JMD-45 Mobil DTE® Oil Heavy Medium

Oil Heavy Medium Once daily (move table along both

axes to distri bute oil)

As needed (especially if head is

Oil Heavy Medium As needed

Periodically c heck sight glass

Periodically c heck sight glass;

Oil fill hole for gearbox (L9) all Mobil DTE® Oil Heavy Medium

top off to half-way mark.

Completely drain and refill once a

year (drain plug beneath head)

Cross & Longitudinal leadscrews (L10)

(move table forward and remove way

cover to access cross leadscrew)

Gear and rack (L11)

(remove upper back panel)

all Mobilith

JMD-45 Mobilith

AW2

As needed (especially if

handwheels do not turn smoothly)

As needed (especially if head is

Return spring (L12)

(loosen cover-do NOT remove-and apply

All SAE 20 Once annual ly

with squirt can or brush)

Table 4

Frequency

difficult to raise)

), top off as needed

difficult to raise)

Figure 9-1: lubrication areas

10.0 Troubleshooting JMD-40GH/45GH series Mill-Drills

Symptom Possible Cause Correction*

Motor will not start. Low voltage. Check power line for proper voltage.

Open circuit in motor or loose connection.

Overload has tripped. Press reset button on junction box, and

Switch failure. Inspect switch, replace if needed.

Motor will not start: fuses blow or circuit breakers trip.

Motor overheats. Motor overloaded. Decrease feed pressure to reduce load on

Motor stalls, or doesn’t build to normal operating speed.

Short circuit in line cord or plug. Inspect cord or plug for damaged

Short circuit in motor or loose connections.

Incorrect fuses or circuit breakers in power line.

Air circulation through motor is restricted.

Prolonged operation at higher speeds.

Overload relay failure. Replace relay. Motor failure. Repair or replace motor. Motor overloaded. Reduce feed rate. Dull drill bit or mill cutter. Keep tools sharp. Short circuit in motor or loose

connections. Low voltage. Correct the low voltage conditions.

Inspect all lead connections on motor for loose or open connections.

retry.

insulation and shorted wires. Inspect all connections on motor for loose

or shorted terminals or worn insulation. Install correct fuses or circuit breakers.

motor. Clean motor fan with compressed air to

restore normal air circulation. Allow machine to cool.

Inspect connections on motor for loose or shorted terminals or worn insulation.

Incorrect fuses or circuit breakers in power line.

Motor fault. Repair or replace motor.

Spindle turns, but with loss of power.

Spindle/bearing runs hot.

Poor cut performance. Dull bit or cutting tool. Sharpen or replace.

Fine feed not smooth, or won’t engage properly.

Applying too much downfeed pressure.

Low voltage. Correct the low voltage conditions. Motor fault. Repair or replace motor. Prolonged operation at higher

speeds. Insufficient spindle lubrication. Make sure machine is properly lubricated.

Drill chuck loose Secure chuck in spindle. Workpiece not secured to table. Tighten down workpiece. Use proper vise

Arbor not secured in spindle. Adjust tightness with drawbar. Spindle runout or loosening due to

bearing misadjustment or failure. Fine feed handwheel loose. Tighten set screw.

Non-powerfeed models: damaged spring between worm gear and locking knob.

Improper worm gear engagement. Replace worm gear elements as needed.

Install correct fuses or circuit breakers.

Slow downfeed.

Allow machine to cool.

or jig for irregularly shaped pieces.

Inspect spindle elements, such as bearings and lock nuts; adjust or replace.

Replace spring.

Symptom Possible Cause Correction*

Excessive vibration or noise.

Loose motor fan. Inspect and tighten. Spindle improperly lubricated. Maintain proper machine lubrication. Spindle runout or loosening due to

bearing misadjustment or failure. Motor imbalance. Repair or replace motor.

Drill or cutter overheats or burns workpiece.

Drill bit wanders. No drill spot. Center punch or center drill workpiece.

Excessive wobble/ runout in drill.

*Warning: Some corrections may require a qualified electrician.

Dull cutting tool. Sharpen or replace. Insufficient feed rate. Increase feed rate. Consult machinery

Excessive spindle speed. Reduce speed. Consult machinery

Tool rotation incorrect. Reverse rotation. Chips not clearing. Adjust speed or feed rate to allow proper

Failure to use cutting lubricant. Use proper lubricant for material being cut.

Improper geometry of cutting edges. Regrind drill bit or replace. Spindle or quill loose, or play in

bearings. Improper chucking of bit. Properly reinsert drill bit in chuck.

Drill bent. Replace. Play in spindle bearings Inspect and adjust.

Table 5

Inspect spindle elements, such as bearings and lock nuts; adjust or replace.

handbook for proper speeds and feed rates for specific materials.

clearing.

Inspect and adjust.

11.0 Optional accessories

An optional enclosed stand (p/n 350045) is available for your JET Mill-Drill Machine. Contact your dealer or visit our website for more information.

Figure 9-1: optional stand

12.0 Replacement Parts

Replacement 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.

Non-proprietary parts, such as fasteners, can be found at local hardware stores, or may be ordered from JET. Some parts are shown for reference only, and may not be available individually.

12.1.1 JMD-40GH,-40GHPF Table, Base, and Column Assembly – Exploded View

12.1.2 JMD-40GH,-40GHPF Table, Base, and Column Assembly – Parts List

Index No. Part No. Description Size Qty

601 ............ JMD18-228G ............. Table ........................................................................ 31L ................................ 1

602 ............ JMD18-229 ................ Fixed T-Block ........................................................... ...................................... 2

603 ............ JMD18-230 ................ Stop Ring ................................................................. ...................................... 2

604 ............ TS-0207021 .............. Hex Socket Head Cap Screw .................................. 1/4”-20x1/2” .................. 2

605 ............ JMD18-368 ................ Ball Oiler .................................................................. 1/4” ................................ 5

606 ............ JMD18-201 ................ Table Handwheel ..................................................... ...................................... 3

606-1 ......... TS-0267041 .............. Set Screw ................................................................ 1/4”-20x3/8” .................. 3

607A .......... JMD18-201A ............. Handle Assembly (#607-1 thru 607-3) ..................... ...................................... 3

607-1 ......... JMD18-201-1 ............ Hex Socket Head Cap Screw (RE: JMD18-201-2) .. 3/8”-16x16 ..................... 3

607-2 ......... JMD18-201-2 ............ Handle ..................................................................... ...................................... 3

607-3 ......... TS-0561031 .............. Hex Nut .................................................................... 3/8”-16 .......................... 3

609 ............ JMD18-220 ................ Table Clutch............................................................. ...................................... 1

610 ............ JMD18-366 ................ Spring Pin ................................................................ 5x38L mm ..................... 1

611 ............ JMD18-222 ................ Left Flange ............................................................... ................................. ..... 1

612 ............ TS-0208061 .............. Hex Socket Head Cap Screw .................................. 5/16”-18x1” ................... 6

613A .......... JMD18-223A ............. Table Nut Set (#613-1 thru 613-3) ........................... ...................................... 1

613-1 ......... JMD18-223 ................ Table Nut ................................................................. TM 23.7-10 .................... 1

613-2 ......... TS-1502041 .............. Hex Socket Head Cap Screw .................................. M5-0.8x16 ..................... 1

613-3 ......... TS-1550031 .............. Flat Washer ............................................................. M5 ................................. 1

616A .......... JMD18-224A ............. Table Screw Assembly (#616-1 thru 616-6 ) ............ ...................................... 1

616-1 ......... JMD18-224 ................ Table Lead Screw .................................................... ...................................... 1

616-2 ......... BB-51103 .................. Thrust Bearing ......................................................... 51103 ............................ 2

616-3 ......... JMD18-226 ................ Right Flange ............................................................ ...................................... 1

616-4 ......... JMD18-202-1 ............ Graduated Dial ........................................................ ...................................... 1

616-5 ......... JMD18-202 ................ Dial Clutch ............................................................... ...................................... 1

616-6 ......... JMD18-366 ................ Spring Pin ................................................................ 5x38L mm ..................... 1

617 ............ JMD18N-617 ............. Link Screw ............................................................... ...................................... 2

618 ............ JMD18-121 ................ Indicator Plate .......................................................... .................................. .... 2

619 ............ JMD18-204-2 ............ Rivet......................................................................... 2mm .............................. 4

620 ............ JMD18-216G ............. Center Base ............................................................. 31L .......

621 ............ JMD18-219 ................ Anti-Dust Plate ......................................................... ................................... ... 1

622 ............ JMD18-217 ................ Anti-Dust Plate Assembly ........................................ ...................................... 1

623 ............ JMD18-227 ................ Gib Strip ................................................................... 31L ............................ .... 1

624 ............ JMD18-207 ................ Gib Strip ................................................................... 31L ............................ .... 1

625 ............ JMD18-214 ................ Fixed Block .............................................................. ...................................... 1

626 ............ TS-0051011 .............. Hex Cap Screw ........................................................ 5/16”-18x1/2” ................ 4

627 ............ JMD18-212 ................ Gib Strip Bolt............................................................ ...................................... 2

628 ............ JMD18N-628 ............. Bushing .................................................................... ...................................... 4

629 ............ JMD18-213-1 ............ Locking Handle ........................................................ ...................................... 2

630 ............ JMD18-213 ................ Leaf Screw ............................................................... ...................................... 2

631 ............ TS-0208061 .............. Hex Socket Head Cap Screw .................................. 5/16”-18x1” ................... 2

632 ............ TS-0051101 .............. Hex Socket Head Cap Screw .................................. 5/16”-18x2-1/4” ............. 1

633A .......... JMD18-215A ............. ACME Nut Assembly (#633-1 thru 633-3) ............... ...................................... 1

633-1 ......... JMD18-215 ................ ACME Nut ................................................................ TM23 ............................. 1

633-2 ......... TS-1550031 .............. Flat Washer ............................................................. M5 ................................. 1

633-3 ......... TS-1502041 .............. Hex Socket Head Cap Screw .................................. M5x16 ........................... 1

634 ............ JMD18N-634G .......... Base......................................................................... ........ .............................. 1

635A .......... JMD18-205A ............. ACME Nut Assembly (#63-1 thru 635-6) ................. ...................................... 1

635-1 ......... JMD18-205 ................ Cross Lead Screw .................................................. TM23 ............................. 1

635-2 ......... BB-51103 .................. Thrust Bearing ......................................................... 51103 ............................ 2

635-3 ......... JMD18-204 ................ Square Flange ......................................................... ...................................... 1

635-4 ......... JMD18-202-1 ............ Graduated Dial ........................................................ ...................................... 1

635-5 ......... JMD18-202 ................ Dial Clutch ............................................................... ...................................... 1

635-6 ......... JMD18-366 ................ Spring Pin ................................................................ 5x38 mm ....................... 1

636 ............ JMD18N-636G .......... Column Base ........................................................... ...................................... 1

637 ............ JMD18N-637 ............. Rack......................................................................... 600.5L ........................... 1

638 ............ JMD18-211 ................ Column Cap ............................................................. .................................... .. 1

638-1 ......... TS-0270021 .............. Set Screw ................................................................ 5/16”-18x5/16” .............. 1

640 ............ JMD18-209 ................ Column Flange Ring ................................................ ...................................... 1

641 ............ F004999 .................... Hex Socket Head Cap Screw .................................. 5/8”-11x2-1/2” ............... 5

......................... 1

Index No. Part No. Description Size Qty

642 ............ TS-0720131 .............. Lock Washer ............................................................ 5/8” ................................ 5

643 ............ TS-0208022 .............. Hex Socket Head Cap Screw .................................. 5/16”-24x1/2” ................ 2

644 ............ JMD18N-644 ............. Lock Washer ............................................................ 5/16” .............................. 3

645 ............ JMD18N-645 ............. Plug.......................................................................... PT1/4”x3/8” ................... 1

646 ............ 365534 ...................... Angle Vise ............................................................... ...................................... 1

647 ............ 365534-01 ................. Hardware Package (2 Bolts, 2 Nuts, 2 Washers) .... ...................................... 1

.................. JMD18-AP ................. Accessory Package (not shown) * .......................... ...................................... 1

* Contents of Accessory Package:

.................. JMD18-020 ................ Cutter Arbor ............................................................. ...................................... 1

.................. JMD18-022 ................ Handle ..................................................................... ...................................... 4

.................. JMD18-039 ................ Handle Rod .............................................................. ................................... ... 3

.................. JMD18-040 ................ Knob ........................................................................ ...................................... 3

.................. JMD18-050 ................ Lock Handle ............................................................. ................................... ... 1

.................. 561704 ...................... Drill Chuck w/Chuck Key ......................................... JT6, 1/2" (13mm) .......... 1

.................. JMD18-086 ................ Face Mill Cutter Assembly ....................................... 3” (74mm) ..................... 1

.................. JMD18-021 ................ Chuck Arbor (Installed) ............................................ ...................................... 1

.................. 365534 ...................... Angle Vise ............................................................... ...................................... 1

.................. JMD18-058 ................ Handle Crank ........................................................... .................................... .. 1

.................. JMD18-201 ................ Wheel....................................................................... ...................................... 3

.................. TS-152704 ................ Hex Wrench ............................................................. 3mm .............................. 1

.................. TS-152705 ................ Hex Wrench ............................................................. 4mm .............................. 1

.................. TS-152706 ................ Hex Wrench ............................................................. 5mm .............................. 1

.................. TS-0209051 .............. Hex Socket Cap Screw ............................................ 3/8”-16x1” ..................... 1

.................. TS-0680041 .............. Flat Washer ............................................................. 3/8” ................................ 1

.................. 365534-01 ................. Hardware Package (2 Bolts, 2 Nuts, 2 Washers) .... ...................................... 1

12.2.1 JMD-40GH,-45GH (non-powerfeed) Gear Head Assembly – Exploded View

12.2.2 JMD-40GH,-45GH (non-powerfeed) Gear Head Assembly – Parts List

Index No. Part No. Description Size Qty

11 .............. 2401011G ................. Head Casting ........................................................... ...................................... 1

12 .............. 6112 .......................... Rubber Gasket......................................................... ...................................... 1

13 .............. 6513 .......................... Feed Base ............................................................... ...................................... 1

14 .............. 6114 .......................... Lock Nut................................................................... ...................................... 2

15 .............. BB-30206 .................. Taper Roller Bearing................................................ 30206 ............................ 1

16 .............. 6116-R8 .................... Quill.......................................................................... R8 ................................. 1

17 .............. 6117-R8 .................... Spindle Shaft ........................................................... R8 ................................. 1

18 .............. BB-30207 .................. Taper Roller Bearing................................................ 30207 ............................ 1

19 .............. 6119 .......................... Bearing Cap ............................................................. ...................................... 1

24 .............. 2421003 .................... Handle Rod Assembly ............................................. ...................................... 1

27 .............. 6127 .......................... Screw Key................................................................ .. .................................... 1

35 .............. 6135 .......................... Bearing Spacer ........................................................ ...................................... 1

39 .............. 6139N ........................ Handle Rod .............................................................. ...................................... 3

44 .............. 6144 .......................... Micro Adjusting Indicator ......................................... ...................................... 1

45 .............. 6145 .......................... Worm Cover............................................................. ...................................... 1

46 .............. BB-6202Z .................. Ball Bearing ............................................................. 6202Z ............................ 2

47 .............. 6147 .......................... Worm Shaft .............................................................. .. .................................... 1

50-A ........... GHD20-50-A ............. Chuck Guard Assembly (#50-1 thru 50-9) ............... ...................................... 1

50-1 ........... JMD18-125-1 ............ Chuck Guard and Support Rod ............................... ...................................... 1

50-2 ........... JMD18-125-2 ............ Support Rod (RE: JMD18-125-1) ............................ ...................................... 1

50-3 ........... TS-2361051 .............. Lock Washer ............................................................ M5 ........ ......................... 4

50-4 ........... TS-1502021 .............. Hex Socket Head Cap Screw .................................. M5 x 10 ......................... 2

50-5 ........... GHD20-50-5 .............. Chuck Guard Bracket .............................................. ...................................... 1

50-6 ........... JMD18-125-5 ............ Rotary Support Base ............................................... ...................................... 1

50-7 ........... JMD18-125-6 ............ Hex Socket Head Cap Screw .................................. M5x15L ......................... 2

50-8 ........... TS-1551041 .............. Lock Washer ............................................................ M6 ........ ......................... 2

50-9 ........... 6286490 .................... Hex Socket Head Cap Screw .................................. M6x15L ......................... 2

52 .............. TS-0071141 .............. Hex Cap Screw ........................................................ 5/8”-11 x 5-1/2” ............. 2

53 .............. GHD20-53 ................. Oil Plug .................................................................... ...................................... 1

54 .............. GHD20-54 ................. Threaded Rod .......................................................... ...................................... 1

55 .............. JMD40GH-55 ............ Worm Shaft .............................................................. ...................................... 1

56 .............. JMD40GH-56 ............ O-Ring .................................................................... ....... ............................... 1

57-1 ........... JMD40GH-57-1 ......... Bracket..................................................................... .........

57-2 ........... JMD40GH-57-2 ......... Worm Gear .............................................................. ...................................... 1

57-3 ........... F006042 .................... C-Ring, External ..................................................... S14 ............................... 2

57-4 ........... JMD40GH-57-4 ......... Shaft ........................................................................ ...................................... 1

57-5 ........... JMD40GH-57-5 ......... Ball Oiler .................................................................. ...................................... 1

58 .............. TS-0207041 .............. Hex Socket Head Cap Screw .................................. 1/4”-20x3/4” .................. 4

59-1 ........... JMD40GH-59-1 ......... Crank ....................................................................... ...................................... 1

59-2 ........... TS-0271052 .............. Set Screw ................................................................ 3/8”-24x1/2” .................. 1

60A ............ JMD18-201A ............. Handle Assembly (#60-1 thru 60-3) ......................... ...................................... 1

60-1 ........... TS-0561031 .............. Hex Socket Head Cap Screw .................................. 3/8”-16x16UNC ............. 1

60-2 ........... JMD18-201-2 ............ Handle ..................................................................... ...................................... 1

60-3 ........... TS-0561031 .............. Hex Nut .................................................................... 3/8”-16 .......................... 1

62 .............. 6142-2 ....................... Handwheel ............................................................... ...................................... 1

63 .............. F001600 .................... Full Nylon Insert Lock Nut........................................ 5/8”-11 .......................... 3

64 .............. TS-0680081 .............. Flat Washer ............................................................. 5/8” ................................ 2

65 .............. F008242 .................... Hex Cap Screw ........................................................ 5/8”-11 x 2-1/4” ............. 3

66 .............. 2401066 .................... Gear Lever Bracket.................................................. ...................................... 2

67 .............. 2401067 .................... Gear Lever (Left) ..................................................... ...................................... 1

68 .............. 2401068 .................... Gear Lever (Right) ................................................... ...................................... 1

69 .............. GHD20-69 ................. Screw ....................................................................... 1/4” x 1/2" ...................... 2

70 .............. 2401070 .................... Lever Shaft (Right)................................................... ...................................... 1

71 .............. 2401071 .................... Lever Shaft (Left) ..................................................... ...................................... 1

72 .............. JMD40GH-72 ............ Name Plate .............................................................. ...................................... 1

.................. JET-92 ....................... JET Logo (not shown) ............................................. 92x38MM ...................... 1

73 .............. GHD20-73 ................. Phillips Head Screw ................................................. 3/16” x 3/8” .................... 8

74 .............. TS-0267021 .............. Set Screw ................................................................ 1/4"-20 x 1/4" ................ 8

75 .............. 2401075 .................... Speed Lever ............................................................ ...................................... 2

76 .............. 2401076 .................... Scale ........................................................................ ...................................... 1

............................. 1

Index No. Part No. Description Size Qty

76-1 ........... 2401076-1 ................. Pointer ..................................................................... ...................................... 1

77 .............. GHD20-77 ................. Screw ....................................................................... ...................................... 2

79 .............. 2412001G ................. Casting..................................................................... ...................................... 1

81 .............. GHD20-81 ................. Oil Plug .................................................................... ...................................... 1

82 .............. TS-0209031 .............. Hex Socket Cap Screw ............................................ 3/8”-16 x 3/4” ................ 6

83 .............. GHD20-83 ................. Miter Pin................................................................... ...................................... 2

84 .............. 2401084G ................. Cover ....................................................................... ...................................... 1

85 .............. 6185 .......................... Lock Knob ................................................................ ...................................... 1

86 .............. JMD40GH-86 ............ Motor........................................................................ 1.5HP 1PH 115/230V ... 1

.................. JMD40GH-86MF ....... Motor Fan ................................................................ ...................................... 1

.................. JMD40GH-86MFC .... Motor Fan Cover ...................................................... ...................................... 1

.................. JMD40GH-86SC ....... Start Capacitor ......................................................... 400MFD 125VAC .......... 1

.................. JMD40GH-86CC ....... Capacitor Cover ....................................................... ...................................... 1

.................. JMD40GH-86JB ........ Junction Box ............................................................ ...................................... 1

.................. JMD40GH-86JBC ..... Junction Box Cover.................................................. ................. ..................... 1

87 .............. GHD20-87 ................. Oil Sight Glass ......................................................... ...................................... 1

88 .............. GHD20-88 ................. Key........................................................................... 6 x 6 x 30mm ................ 1

89 .............. GHD20-89 ................. Brass Fitting ............................................................. ...................................... 1

90 .............. 6286478 .................... C-Ring, External ...................................................... S12 ............................... 2

92 .............. 6192 .......................... Block ........................................................................ ...................................... 1

93 .............. 6193 .......................... Nut ......................................................................... .. ...................................... 1

94 .............. 6194 .......................... Support Base ........................................................... ...................................... 1

95 .............. 6195 .......................... Knurled Knob Assembly .......................................... ...................................... 1

96 .............. GHD20-96 ................. Oil Seal .................................................................... ...................................... 2

102 ............ 61102 ........................ Limit Plate ................................................................ ...................................... 1

103 ............ 61103S ...................... Spring and Cover (includes #104) ........................... ...................................... 1

104 ............ 61104 ........................ Spring (RE:61103S) ................................................ ...................................... 1

105 ............ 61105 ........................ Spring Base ............................................................. ...................................... 1

106 ............ 61106 ........................ Pinion Shaft ............................................................. ...................................... 1

107 ............ 61107 ........................ Worm Gear .............................................................. ...................................... 1

108 ............ 61108G ..................... Feed Cover .............................................................. ...................................... 1

110 ............ 61110 ........................ Spring Base ............................................................. ...................................... 1

111 ............ 6138 .......................... Lock Bolt w/ Knob .................................................... ...................................... 1

112 ............ TS-0209051 .............. Hex Socket Head Cap Screw .................................. 3/8”-16 x 1” ................... 3

115 ............ 61115 ........................ Compression Spring ................................................ ...................................... 1

119 ............ 6126-1 ....................... Collar (threaded) ...................................................... .....

................................. 1

120 ............ 6125-1 ....................... Collar Nut ................................................................. ...................................... 1

121 ............ 6125-2 ....................... Collar ....................................................................... ...................................... 1

124 ............ JMD40GH-124 .......... Lamp Assembly ....................................................... 110V ............................. 1

125 ............ TS-2284352 .............. Phillips Pan Head Machine Screw ........................... M 4-0.7x35L ................... 2

126 ............ GHD20-126 ............... Lamp Base .............................................................. ...................................... 1

127 ............ TS-1503031 .............. Hex Socket Head Cap Screw .................................. M6-1.0 x 12L ................. 2

130 ............ TS-1501021 .............. Hex Socket Head Cap Screw .................................. M4-0.7 x 8 ..................... 1

134 ............ TS-0050091 .............. Hex Cap Screw ........................................................ 1/4"-20 x 2” ................... 1

135 ............ TS-0561011 .............. Hex Nut .................................................................... 1/4"-20 .......................... 1

136 ............ F012072 .................... Roll Pin .................................................................... Ø4x20L ......................... 1

137 ............ GHD20-137 ............... Star Washer, Ext. Tooth .......................................... M30 ............................... 1

139 ............ GHD20-139 ............... Screw ....................................................................... 3/16” x 3/4” .................... 3

140 ............ GHD20-140 ............... Spring Pin ................................................................ Ø3x12L ......................... 1

141 ............ TS-0561031 .............. Hex Nut .................................................................... 3/8”-16 .......................... 1

142 ............ GHD20-142 ............... Double Rd. Hd. Key ................................................. 7 x 7 x 20 mm ............... 1

143 ............ TS-0208021 .............. Hex Socket Head Cap Screw .................................. 5/16”-18 x 1/2" .............. 2

145 ............ TS-0270021 .............. Set Screw ................................................................ 5/16”-18x 5/16” ............. 1

146 ............ TS-0267021 .............. Set Screw ................................................................ 1/4”-20 x 1/4" ................ 1

147 ............ GHD20-147 ............... Hex Socket Head Cap Screw .................................. 3/16” x 7/16” .................. 2

148 ............ GHD20-148 ............... C-Ring, External ...................................................... S15 ............................... 1

150 ............ TS-0561071 .............. Hex Nut .................................................................... 5/8”-11 .......................... 2

151 ............ TS-0680081 .............. Flat Washer ............................................................. 5/8” ................................ 2

184 ............ F000197 .................... Phillips Pan Hd Machine Screw ............................... #8-32 x 1/4" ................... 1

185 ............ GHD20-185 ............... Flat Washer ............................................................. 1/4" ................................ 1

187 ............ TS-0680021 .............. Flat Washer ............................................................. 1/4" ................................ 1

187-1 ......... TS-0720071 .............. Lock Washer ............................................................ 1/4" ................................ 1

Index No. Part No. Description Size Qty

188 ............ GHD20-188 ............... Screw ....................................................................... 3/16” x 3/8” .................... 1

249 ............ GHD20-249 ............... Rivet......................................................................... ...................................... 2

287 ............ GHD20-287 ............... Spring Pin ................................................................ Ø4x16Lmm ................... 2

293 ............ HP309 ....................... Taper Pin ................................................................. M6xØ7 (1:48) ................ 1

315 ............ TS-0680011 .............. Flat Washer ............................................................. 3/16” .............................. 2

316 ............ GHD20-374 ............... Flat Washer ............................................................. 1/2"x7/8”x2” ................... 1

330 ............ 2401085 .................... Dust Plate ................................................................ ...................................... 1

339 ............ JMD40GH-339 .......... For/Rev Switch ........................................................ ...................................... 1

340 ............ GHD20-340 ............... Screw ....................................................................... ...................................... 2

341 ............ JMD40GH-341 .......... Motor Cord (not shown) ........................................... 14AWGx5C 300V ......... 1

342 ............ JMD40GH-342 .......... Power Cord (not shown)……………………3x3.31mm² 12AWG, 5-20P ........ 1

.................. LM000286 ................. Warning Label, Mill-Drills (not shown) ..................... ...................................... 1

12.3.1 JMD-40GH,-45GH (non-powerfeed) Gears Assembly – Exploded View

12.3.2 JMD-40GH,-45GH (non-powerfeed) Gears Assembly – Parts List

Index No. Part No. Description Size Qty

1 ................ 2401001-2 ................. Main Shaft Cover ..................................................... ...................................... 1

3 ................ JMD40GH-03 ............ Draw Bar .................................................................. 7/16” .............................. 1

4 ................ GHD20-4 ................... Retainer Ring, Internal ............................................. R68 ............................... 1

5 ................ BB-6008ZZ ................ Ball Bearing ............................................................. 6008ZZ ......................... 2

6 ................ 2401006 .................... Idle Gear .................................................................. 53T ................................ 1

6-1 ............. F006055 .................... C-Ring, External ...................................................... S40 ............................... 1

7 ................ GHD20-7 ................... Oil Seal .................................................................... ...................................... 1

8 ................ 2401008 .................... Oil Seal Ring ............................................................ ...................................... 1

9 ................ GHD20-9 ................... Dust Cover ............................................................... ...................................... 2

10 .............. GHD20-10 ................. C-Ring, External ...................................................... S17 ............................... 2

20 .............. 2401020A .................. Gear Shaft Assembly ............................................... 15/41T ........................... 1

28 .............. GHD20-28 ................. Oil Seal .................................................................... ...................................... 1

29 .............. 2401029N .................. Idle Gear .................................................................. 42/16T ........................... 1

30 .............. GHD20-30 ................. Steel Ball w/ Spring.................................................. 5/16” .............................. 3

31 .............. 2401031 .................... Pinion Shaft (RE: T2401031BS) .............................. ...................................... 1

.................. T2401031BS ............. Pinion Shaft w/Gear Assembly (includes #29,31,33,34,37,52)....................... 1

33 .............. GHD20-33 ................. C-Ring...................................................................... S18 ............................... 1

34 .............. 2401055N .................. Idle Gear .................................................................. 44T ................................ 1

37 .............. 2401037N .................. Idle Gear (2 piece) ................................................... 35/28T ........................... 1

41 .............. BB-6002ZZ ................ Ball Bearing ............................................................. 6002ZZ ......................... 5

42 .............. GHD20-42 ................. C-Ring, Internal........................................................ R62 ............................... 1

43 .............. 2401043 .................... Pinion Shaft (RE: T2401043BS) .............................. ...................................... 1

.................. T2401043BS ............. Pinion Shaft w/Gear Assembly (includes #,43,49,50) .................................... 1

49 .............. 2401049N .................. Idle Gear (RE: T2401043BS) .................................. 15/31/23T ...................... 1

50 .............. GHD20-50 ................. Oil Seal .................................................................... ...................................... 1

51 .............. BB-6007ZZ ................ Ball Bearing ............................................................. 6007ZZ ......................... 1

52 .............. 2401192 .................... Bushing .................................................................... ...................................... 1

12.4.1 JMD-40GHPF,-45GHPF (powerfeed) Gear Head Assembly – Exploded View

12.4.2 JMD-40GHPF,-45GHPF (powerfeed) Gear Head Assembly – Parts List

Index No. Part No. Description Size Qty

40 .............. GHD20PF-40 ............ Screw ....................................................................... 3/16” x 3/8” .................... 1

42 .............. 61105 ........................ Spring Base ............................................................. ...................................... 1

43 .............. GHD20PF-43 ............ Spring Pin ................................................................ 3 x 12 mm ..................... 2

44 .............. GHD20PF-44 ............ Screw ....................................................................... 3/16” x 3/4” .................... 3

45 .............. 61103S ...................... Spring and Cover (includes #46) ............................. ...................................... 1

46 .............. 61103 ........................ Spring Cover (RE:61103S) ...................................... ...................................... 1

47 .............. TS-0680021 .............. Flat Washer ............................................................. 1/4" ................................ 1

48 .............. TS-0720071 .............. Lock Washer ............................................................ 1/4" ................................ 1

49 .............. 6185 .......................... Lock Knob ................................................................ ...................................... 1

50A ............ GHD20-50-A ............. Chuck Guard Assembly (#50-1 thru 50-9) ............... ...................................... 1

50-1 ........... JMD18-125-1 ............ Chuck Guard and Support Rod ............................... ...................................... 1

50-2 ........... JMD18-125-2 ............ Support Rod (RE:JMD18-125-1) ............................. ...................................... 1

50-3 ........... TS-2361051 .............. Lock Washer ............................................................ M5 ........ ......................... 4

50-4 ........... TS-1502021 .............. Hex Socket Head Cap Screw .................................. M5 x 10 ......................... 2

50-5 ........... GHD20-50-5 .............. Chuck Guard Bracket .............................................. ...................................... 1

50-6 ........... JMD18-125-5 ............ Rotary Support Base ............................................... ...................................... 1

50-7 ........... JMD18-125-6 ............ Hex Socket Head Cap Screw .................................. M5 x 15L ....................... 2

50-8 ........... TS-1551041 .............. Lock Washer ............................................................ M6 ........ ......................... 2

50-9 ........... 6286490 .................... Hex Socket Head Cap Screw .................................. M6 x 15L ....................... 2

52 .............. TS-0071141 .............. Hex Cap Screw ........................................................ 5/8”-11 x 5-1/2” ............. 2

53 .............. GHD20-53 ................. Oil Plug .................................................................... 1/4” PT ........................... 1

54 .............. JMD40GH-55 ............ Worm Shaft .............................................................. ...................................... 1

55 .............. JMD40GH-56 ............ O-Ring .................................................................... ....... ............................... 1

56-1 ........... JMD40GH-57-1 ......... Bracket..................................................................... ...................................... 1

56-2 ........... JMD40GH-57-2 ......... Worm Gear .............................................................. ...................................... 1

56-3 ........... F006042 .................... C-Ring, External ...................................................... S14 ............................... 2

56-4 ........... JMD40GH-57-4 ......... Shaft ........................................................................ ...................................... 1

56-5 ........... JMD40GH-57-5 ......... Ball Oiler .................................................................. ...................................... 1

57 .............. TS-0207041 .............. Hex Socket Head Cap Screw .................................. 1/4”-20 x 3/4”L ............. 4

58-1 ........... JMD40GH-59-1 ......... Crank ...................................................................... ...................................... 1

58-2 ........... TS-0271052 .............. Set Screw ................................................................ 3/8”-16 x 1/2”L .............. 1

60A ............ JMD18-201A ............. Handle Assembly (#60-1 thru 60-3) ......................... ...................................... 1

60-1 ........... JMD18-201-1 ............ Hex Socket Head Cap Screw .................................. 3/8” x 16UNC ................ 1

60-2 ........... JMD18-201-2 ............ Handle ..................................................................... ...................................... 1

60-3 ........... TS-0561031 .............. Hex Nut .................................................................... 3/8”-16 .......................... 1

70 .............. 2421003 .................... Handle Rod Assembly ............................................. ...................................... 1

76 .............. 2401076 .................... Scale ........................................................................ ...................................... 1

76-1 ........... 2450060 .................... Pointer ..................................................................... .. .................................... 3

78 .............. 6112 .......................... Rubber Gasket......................................................... ...................................... 1

79 .............. 2412001G ................. Casting..................................................................... ...................................... 1

82 .............. 6114 .......................... Lock Nut................................................................... ...................................... 1

83 .............. GHD20PF-83 ............ Star Washer, External Tooth ................................... M30 ............................... 1

84 .............. BB-30206 .................. Taper Roller Bearing................................................ 30206 ............................ 1

85 .............. 6116-R8 .................... Quill.......................................................................... R8 ................................. 1

86 .............. 6117-R8 .................... Spindle Shaft ........................................................... R8 ................................. 1

87 .............. BB-30207 .................. Taper Roller Bearing................................................ 30207 ............................ 1

88 .............. 6119 .......................... Bearing Cap ............................................................. ...................................... 1

89 .............. 6127 .......................... Screw Key................................................................ .. .................................... 1

90 .............. TS-0561031 .............. Hex Nut .................................................................... 3/8”-16 .......................... 1

91 .............. 2401066 .................... Gear Lever Bracket.................................................. ...................................... 2

92 .............. 2401067 .................... Gear Lever (Left) ..................................................... ...................................... 1

93 .............. 2401068 .................... Gear Lever (Right) ................................................... ...................................... 1

94 .............. TS-0207021 .............. Hex Socket Head Cap Screw .................................. 1/4”-20 x 1/2" ................ 1

95 .............. 2401070 .................... Lever Shaft (Right)................................................... ...................................... 1

96 .............. 2401071 .................... Lever Shaft (Left) ..................................................... ...................................... 1

97 .............. GHD20PF-97 ............ C-Ring, External ...................................................... S12 ............................... 2

98 .............. GHD20PF-98 ............ Oil Sight Glass ......................................................... ...................................... 1

99 .............. GHD20PF-99 ............ Screw ....................................................................... 3/16” x 3/8” .................... 8

100 ............ GHD20PF-100 .......... Oil Seal .................................................................... G12 ............................... 2

102 ............ 2401075 .................... Speed Lever ............................................................ ...................................... 2

Index No. Part No. Description Size Qty

106 ............ GHD20PF-106 .......... Oil Plug .................................................................... ...................................... 1

107 ............ TS-0209081 .............. Hex Socket Head Cap Screw .................................. 3/8”-16 x 3/4" ................ 6

108 ............ GHD20PF-108 .......... Miter Pin................................................................... ...................................... 2

109 ............ TS-0267021 .............. Set Screw ................................................................ 1/4"-20 x 1/4" ................ 4

110 ............ JMD40GH-86 ............ Motor........................................................................ 1.5HP 1PH 115/230V ... 1

.................. JMD40GH-86MF ....... Motor Fan ................................................................ ...................................... 1

.................. JMD40GH-86MFC .... Motor Fan Cover ...................................................... ...................................... 1

.................. JMD40GH-86SC ....... Start Capacitor ......................................................... 400MFD 125VAC .......... 1

.................. JMD40GH-86CC ....... Capacitor Cover ....................................................... ...................................... 1

.................. JMD40GH-86JB ........ Junction Box ............................................................ ...................................... 1

.................. JMD40GH-86JBC ..... Junction Box Cover.................................................. ................. ..................... 1

111 ............ GHD20PF-111 .......... Double Rd. Hd. Key ................................................. 6 x 6 x 30mm ................ 1

112 ............ TS-0209031 .............. Hex Socket Head Cap Screw .................................. 3/8”-16 x 3/4” ................ 6

113 ............ GHD20-89 ................. Brass Fitting ............................................................. ...................................... 1

114 ............ TS-0561071 .............. Hex Nut .................................................................... 5/8”-11 .......................... 3

116 ............ F008242 .................... Hex Cap Screw ........................................................ 5/8”-11 x 2-1/4” ............. 3

119 ............ 6126-1 ....................... Collar (threaded) ...................................................... ...................................... 1

120 ............ 6125-1 ....................... Collar Nut ................................................................. ...................................... 1

121 ............ 6125-2 ....................... Collar ....................................................................... ...................................... 1

124 ............ JMD40GH-124 .......... Lamp Assembly ....................................................... 110V ............................. 1

125 ............ TS-2284352 .............. Phillips Pan Head Machine Screw ........................... M 4-0.7x35L ................... 2

126 ............ GHD20-126 ............... Lamp Base .............................................................. ...................................... 1

127 ............ TS-1503031 .............. Hex Socket Head Cap Screw .................................. M6x12L ......................... 2

150 ............ TS-0561071 .............. Hex Nut .................................................................... 5/8”-11 .......................... 2

151 ............ TS-0680081 .............. Flat Washer ............................................................. 5/8” ................................ 2

201 ............ 2450001G ................. Head Body Cover .................................................... ...................................... 1

202 ............ 2450002G ................. Head Body Casting .................................................. ...................................... 1

218 ............ 2450008 .................... Worm Gear .............................................................. ...................................... 1

219 ............ TS-1523011 .............. Set Screw ................................................................ M6 x 6 ........................... 4

220 ............ F006033 .................... C-Ring, Internal........................................................ R35 ............................... 4

227 ............ 2450014 .................... Cover ....................................................................... ...................................... 1

233 ............ GHD20PF-233 .......... Screw ....................................................................... M4 x 25 ......................... 1

235 ............ 2450020 .................... Release Block .......................................................... ...................................... 1

236 ............ 2450021 .................... Small Pinion Shaft ................................................... ...................................... 1

237 ............ 2450022A .................. Cylindrical Key ......................................................... M8x12 ........................... 2

238 ............ 2450023 .................... Worm Gear .............................................................. ...................................... 1

239 ............ 2450024 .................... Clutch Key Base ...................................................... ...................................... 1

241 ............ 2450026 .................... Clutch Key ............................................................... ...................................... 2

242 ............ 2450027 .................... Spring Pin ................................................................ Ø5x18L ......................... 2

243 ............ 2450028 .................... Spring ...................................................................... ...................................... 2

244 ............ GHD20PF-244 .......... C-Ring, External ...................................................... S25 ............................... 1

246 ............ 2450030 .................... Bushing Pin ............................................................. ...................................... 1

247 ............ 2450031 .................... Bushing Stop ........................................................... ...................................... 1

248 ............ 2450032 .................... Scale Base .............................................................. ...................................... 1

249 ............ GHD20PF-249 .......... Rivet......................................................................... ø2x4L ............................ 8

250 ............ 2450033 .................... Scale Base Set Screw ............................................. ...................................... 1

254 ............ 2450037 .................... Handle Hub .............................................................. ...................................... 1

255 ............ 2450038N .................. Handle Rod .............................................................. ...................................... 2

257 ............ 2450039 .................... Handle Rod Pin ....................................................... ...................................... 2

258 ............ 2450040 .................... Washer .................................................................... ...................................... 1

259 ............ TS-1504021 .............. Hex Socket Head Cap Screw .................................. M8-1.25 x 12 ................. 1

265 ............ GHD20PF-265 .......... Double Rd. Hd. Key ................................................. 5 x 5 x 32mm ................ 1

266 ............ 2450045 .................... Cover ....................................................................... ...................................... 1

268 ............ TS-1502031 .............. Hex Socket Head Cap Screw .................................. M5-0.8 x 12 ................... 2

269 ............ GHD20PF-269 .......... Key........................................................................... 4 x 4 x 10mm ................ 1

270 ............ 24500470 .................. Handwheel ............................................................... ...................................... 1

271 ............ GHD20PF-271 .......... Washer .................................................................... ...................................... 1

272 ............ TS-1503031 .............. Hex Socket Head Cap Screw .................................. M6-1.0 x 12 ................... 1

279 ............ JMD40GH-279 .......... Handle Assembly ..................................................... 5/16” .............................. 1

282 ............ GHD20PF-282 .......... Plug.......................................................................... 7/8” ................................ 1

283 ............ GHD20PF-283 .......... Oil Seal .................................................................... ...................................... 1

287 ............ GHD20PF-287 .......... Spring Pin ................................................................ 4x16mm ........................ 2

Index No. Part No. Description Size Qty

291 ............ 2450051 .................... Pin............................................................................ ...................................... 1

293 ............ HP309 ....................... Taper Pin ................................................................. M6xø7 (1:48) ................ 1

313 ............ 2450063 .................... Handle ..................................................................... ...................................... 1

315 ............ TS-0680011 .............. Flat Washer ............................................................. 3/16” .............................. 2

332 ............ GHD20PF-332 .......... Pin............................................................................ ...................................... 1

333 ............ 2450069 .................... Dust Plate ................................................................ ...................................... 1

339 ............ JMD40GH-339 .......... For/Rev Switch ........................................................ ...................................... 1

340 ............ GHD20-340 ............... Screw ....................................................................... ...................................... 1

341 ............ JMD40GH-341 .......... Motor Cord ............................................................... 14AWGx5C 300V ......... 1

342 ............ JMD40GH-342 .......... Power Cord……………………………………..3x3.31mm² 12AWG, 5-20P ..... 1

345 ............ TS-0640081 .............. Hex Nut .................................................................... 5/16”-18 ........................ 1

346 ............ GHD20PF-346 .......... Manual Feed Knob .................................................. ...................................... 1

347 ............ JMD40GHPF-347 ...... Name Plate .............................................................. ...................................... 1

.................. JET-92 ....................... JET Logo (not shown) ............................................. 92x38MM ...................... 1

348 ............ 2450086A .................. Pinion Shaft ............................................................. ...................................... 1

349 ............ 2450097 .................... Clutch Key Pin ......................................................... Ø7x23L mm .................. 2

350 ............ 2450096 .................... Clutch Screw............................................................ ....... ............................... 1

351 ............ 2450095 .................... Clutch Nut ................................................................ ...................................... 1

352 ............ 2450068G ................. Gear Box.................................................................. ...................................... 1

353 ............ 2450081A .................. Gear Shaft ............................................................... ...................................... 1

354 ............ 2450082A .................. Speed Change Lever ............................................... ...................................... 1

355 ............ 2450083A .................. Stop ......................................................................... ...................................... 1

356 ............ 2450084A .................. Spring Leaf .............................................................. ...................................... 1

357 ............ GHD20PF-357 .......... Pin............................................................................ Ø3x10L mm .................. 2

358 ............ 2450089A .................. Fixed Bushing .......................................................... ...................................... 1

359 ............ 2450072A .................. Gear ......................................................................... ...................................... 1

360 ............ 2450071A .................. Gear ......................................................................... ...................................... 1

361 ............ 2450070A .................. Gear ......................................................................... ...................................... 1

362 ............ 2450074A .................. Washer .................................................................... ...................................... 4

363 ............ 2450073A .................. Shaft ........................................................................ ...................................... 1

364 ............ 2450078A .................. Transmission Worm ................................................. ...................................... 1

365 ............ 2450075A .................. Gear ......................................................................... ...................................... 1

366 ............ 2450076A .................. Gear ......................................................................... ...................................... 1

367 ............ 2450077A .................. Gear ......................................................................... ...................................... 1

368 ............ 2450085A .................. Spacer Ring ............................................................. .......

369 ............ 2450079 .................... Speed Lever ............................................................ ...................................... 1

370 ............ GHD20PF-370 .......... Speed Scale ............................................................ ...................................... 1

371 ............ 290089 ...................... Spring ...................................................................... ...................................... 1

372 ............ SB-8MM .................... Steel Ball.................................................................. 8mm . ............................. 1

373 ............ 2450087A .................. Clutch Bushing ........................................................ ...................................... 1

374 ............ GHD20-374 ............... Flat Washer ............................................................. 1/2” x 7/8” x 2” ............... 1

375 ............ 2450100 .................... Washer .................................................................... ...................................... 1

376 ............ GHD20PF-376 .......... E-Retainer Ring ....................................................... E5 ................................. 2

377 ............ TS-0208071 .............. Hex Socket Head Cap Screw .................................. 5/16”-18 x 1-1/4”L ......... 4

378 ............ CA6003ZZ ................. Ball Bearing ............................................................. ...................................... 4

379 ............ GHD20PF-379 .......... Double Rd. Hd. Key ................................................. 5 x 5 x 28L mm ............. 1

380 ............ GHD20PF-380 .......... C-Ring...................................................................... ...................................... 1

381 ............ 2450088A .................. Graduated Bottom Plate .......................................... ...................................... 1

.................. LM000286 ................. Warning Label, Mill-Drills (not shown) ..................... ...................................... 1

............................... 1

12.5.1 JMD-40GHPF,-45GHPF (powerfeed) Gears Assembly- Exploded View

12.5.2 JMD-40GHPF,-45GHPF (powerfeed) Gears Assembly – Parts List

Index No. Part No. Description Size Qty

1 ................ 2401001-2 ................. Main Shaft Cover ..................................................... ...................................... 1

2 ................ GHD20-28 ................. Oil Seal .................................................................... ...................................... 1

3 ................ JMD45GH-03 ............ Draw Bar .................................................................. 7/16” .............................. 1

4 ................ GHD20-4 ................... Retainer Ring, Internal ............................................. R68 ............................... 1

5 ................ GHD20PF-5 .............. Retainer Ring, External ........................................... S40 ............................... 1

6 ................ BB-6008ZZ ................ Ball Bearing ............................................................. 6008ZZ ......................... 2

7 ................ 2401006 .................... Idle Gear .................................................................. 53T ................................ 1

8 ................ GHD20-7 ................... Oil Seal .................................................................... ...................................... 1

9 ................ 2401008 .................... Oil Seal Ring ............................................................ ...................................... 1

10 .............. GHD20-9 ................... Dust Cover ............................................................... ...................................... 2

11 .............. GHD20-10 ................. C-Ring...................................................................... ...................................... 2

12 .............. BB-6002ZZ ................ Ball Bearing ............................................................. 6002ZZ ......................... 5

13 .............. 2401020A .................. Gear Shaft Assembly ............................................... 15/41T ........................... 1

17 .............. 2401029N .................. Idle Gear .................................................................. 42/16T ........................... 1

19 .............. 2401031 .................... Pinion Shaft (RE: T2401031BS) .............................. ...................................... 1

.................. T2401031BS ............. Pinion Shaft w/Gear Assembly (includes #17,19,22,23,24,303)..................... 1

22 .............. GHD20-33 ................. C-Ring, Ext .............................................................. S18 ............................... 1

23 .............. 2401055N .................. Idle Gear .................................................................. 44T ................................ 1

24 .............. 2401037N .................. Idle Gear (2piece) .................................................... 35/28T ........................... 1

26 .............. GHD20-50 ................. Oil Seal .................................................................... ...................................... 1

27 .............. GHD20-42 ................. C-Ring, Internal........................................................ R62 ............................... 1

28 .............. BB-6007ZZ ................ Ball Bearing ............................................................. 6007ZZ ......................... 1

29 .............. 2401043 .................... Pinion Shaft (RE: T2401043BS) .............................. ...................................... 1

.................. T2401043BS ............. Pinion Shaft W/Gear Assembly (includes #29,34) ... ...................................... 1

34 .............. 2401049N .................. Idle Gear (RE: T2401043BS) .................................. 15/31/23T ...................... 1

36 .............. GHD20-30 ................. Steel Ball W/ Spring ................................................. 5/16” .............................. 3

203 ............ 2450003 .................... Idle Gear .................................................................. 33T ................................ 1

205 ............ 2450004 .................... Transmission Worm ................................................. ...................................... 1

206 ............ 2450005 .................... Idle Gear .................................................................. 33T ................................ 1

207 ............ GHD20PF-207 .......... Double Rd. Hd. Key ................................................. 5x5x16 .......................... 1

208 ............ TS-1523011 .............. Set Screw ................................................................ M6x6 ............................. 2

209 ............ GHD20PF-209 .......... C-Ring, External ...................................................... S17 ............................... 2

210 ............ BB-6003ZZ ................ Ball Bearing ............................................................. 6003ZZ ......................... 1

211 ............ GHD20PF-211 .......... Oil Seal .................................................................... ...................................... 1

212 ............ BB-6001ZZ ................ Ball Bearing ............................................................. 6001ZZ ......................... 1

213 ............ BB-6202ZZ ................ Ball Bearing ............................................................. 6202ZZ ......................... 1

214 ............ GHD20-214 ............... Oil Seal Cover.......................................................... ...................................... 1

286 ............ TS-1502031 .............. Hex Socket Head Cap Screw .................................. M5x12 ........................... 2

292 ............ 2450052 .................... Worm Shaft .............................................................. ...... ................................ 1

293 ............ 2450053 .................... Clutch Block ............................................................. ...................................... 1

294 ............ 2450054 .................... Spring ...................................................................... ...................................... 1

295 ............ 2450055 .................... Adjustable Bolt ......................................................... ...................................... 1

296 ............ GHD20PF-296 .......... Key........................................................................... 5x5x10 .......................... 1

297 ............ GHD20PF-297 .......... Set Screw ................................................................ M 5x5 ............................. 4

302 ............ 2450057 .................... Washer .................................................................... ...................................... 1

303 ............ 2401192 .................... Bushing .................................................................... ...................................... 1

12.6.1 JMD-45GH,-45GHPF Table and Base Assembly – Exploded View

12.6.2 JMD-45GH,-45GHPF Table and Base Assembly – Parts List