Charnwood 1420V User Manual

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HEAVY DUTY ELECTRONIC VARIABLE
SPEED BENCH LATHE
MODEL: 1420V
Charnwood, Cedar Court, Walker Road,
Tel. 01530 516 926 Fax. 01530 516 929
email: sales@charnwood.net website: www.charnwood.net
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GENERAL SAFETY RULES
WARNING: Do not attempt to operate the machine until you have read thoroughly and
understood completely all instructions, rules, etc. contained in this manual. Failure to comply may result in accidents involving fire, electric shock, or serious personal injury. Keep this owner's manual and review frequently for continuous safe operation.
1. Know your machine. For your own safety, read the owner's manual carefully. Learn its application and limitations, as well as specific potential hazards pertinent to this machine.
2. Make sure all tools are properly earthed.
3. Keep guards in place and in working order. If a guard must be removed for maintenance or cleaning, make sure it is properly replaced before using the machine again.
4. Remove adjusting keys and spanners. Form a habit of checking to see that the keys and adjusting spanners are removed from the machine before switched it on.
5. Keep your work area clean. Cluttered areas and workbenches increase the chance of an accident.
6. Do not use in dangerous environments. Do not use power tools in damp or wet locations, or expose them to rain. Keep work areas well illuminated.
7. Keep children away. All visitors should be kept a safe distance from the work area.
8. Make workshop childproof. Use padlocks, master switches and remove starter keys.
9. Do not force the machine. It will do the job better and be safer at the rate for which it is designed.
10. Use the right tools. Do not force the machine or attachments to do a job for which they are not designed. Contact the manufacturer or distributor if there is any question about the machine's suitability for a particular job.
11. Wear proper apparel. Avoid loose clothing, gloves, ties, rings, bracelets, and jewellery which could get caught in moving parts. Non-slip footwear is recommended. Wear protective hair covering to contain long hair.
12. Always use safety glasses. Normal spectacles only have impact resistant lenses. They are not safety glasses.
13. Do not over-reach. Keep proper footing and balance at all times.
14. Maintain machine in good condition. Keep machine clean for best and safest performance. Follow instructions for lubrication and changing accessories.
15. Disconnect the machine from power source before servicing and when changing the drive belt.
16. To avoid accidental starting, make sure the switch is in the OFF position before plugging in the mains cable.
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17. Never leave the machine running unattended. Turn the power off. Do not leave the machine until it comes to a complete stop.
18. Do not use any power tools while under the effects of drugs, alcohol or medication.
19. Always wear a face or dust mask if operation creates a lot of dust and/or chips. Always operate the tool in a well ventilated area and provide for proper dust removal. Use a suitable dust extractor.
ADDITIONAL RULES FOR LATHES
Never attempt to adjust any part of the workpiece whilst the lathe is still in motion. Wait until the workpiece has come to a complete stop.
1. Ensure that chuck keys, tommy bars and similar items are removed before the lathe is started.
2. Always stand to one side when you start the lathe so that if anything does fly off e.g. a loose piece of bark, you will be out of the line-of-fire.
3. When mounting a new piece of timber, rotate the wood through 360
o
by hand to ensure
that it will not hit the tool rest or the bed of the lathe and then start the lathe at its slowest speed. When you are certain that that the work is secure and not too out of balance set the lathe to the normal turning speed.
4. Always check the rotation speed before switching the lathe on to avoid the risk of starting it whilst it is set to run at too high a speed.
5. The speed of the lathe must be adjusted to suit the size, balance, length and condition of the timber being turned. The greater the diameter of the work, the slower the rotation speed needs to be. If the piece you are turning is out of balance, then you must start turning at a low speed, until it is balanced.
6. The tool must rest firmly on the tool rest before it is brought into contact with the rotating wood and must never be lifted off the tool rest as long as it is in contact with the timber.
7. Before sanding, polishing or doing anything else that brings your fingers close to the work, remove the tool rest. Getting your fingers trapped between the tool rest and the work will at least be very painful and may cause serious injury.
8. Never wrap the sandpaper of polishing cloth round the work. If it tightens up it will pull your fingers into contact with the timber and may lead to serious injury.
Important
Risk of Injury! Wear Eye Wear Ear Never reach into Protection Protection Moving parts
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Introduction
In order to get the most out of your lathe, please read through this manual and safety instructions before use.
Please keep the manual in case you need it in the future.
Technical Data
N.B. The distance between centres will vary and be dependent on the type of centres or accessories used. Maximum distance is 500mm (20”).
Max. spindle Length (with centres fitted)
430mm (17")
Distance over bed
350mm (14")
Motor DC (Carbon Brush)
750w (1hp) 240Vdc
Speed Range (Forward & Reverse) Low Medium High
250 - 1400rpm 400 - 2650rpm 600 - 4300rpm
Spindle thread size
M33 x 3.5mm
Spindle tapers
2MT
Indexing Positions
24 ( every 15 degrees)
Dimensions (WxDxH)
950mm x 370mm x 500mm
Weight
57kg
Rating
Hobby
Warranty
1 Year
Main Components
Belt Cover Tool Rest Crossbar Tool Rack/Lifting Handle
Indexing Pin Headstock Drive Centre Tail Centre Tailstock
Drive Belt Tensioner Lathe Bed Cam Lock Reversing Switch Start/Stop Buttons Tool Rack/Lifting Handle Tool Rest Stem Variable Speed Control Digital Speed Display
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Unpacking
All parts are contained in one pallet crate.
Cut the retaining straps and unscrew the corner brackets before prising apart the top and sides of the crate. Care must be taken as they are secured with sharp pins.
Using a 13mm spanner, remove the two coach screws securing the lathe to the pallet
Gently lay the lathe on its side and, using a cross head screwdriver, remove the two metal brackets and discard.
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If you decide to bench mount your lathe, without permanently fixing it, you should now attach the four rubber feet to the same holes in the lathe bed.
The lathe is sufficiently heavy and stable to be used without fixing to a base provided the workpiece is not too large and the blank well balanced. For larger diameter blanks (6” plus) and unbalanced pieces, it is recommended that the lathe is fixed to a suitable stand or bench. In that case, remove the rubber feet and mount directly using the holes in the cast bed.
Unpack the parts carefully and check that everything is present as shown.
If anything is missing contact your retailer immediately.
Assembling the Lathe
Decide where you wish to mount your lathe. Ideally, the height of the spindle should be approximately level with your elbow when standing/sitting in a working position.
Check that the Power & Control cables are connected to the sockets in the rear of the Speed Control Box.
PLEASE NOTE: THE POWER CORD MUST NEVER BE CONNECTED DIRECTLY TO THE MOTOR CABLE AS THE MOTOR IS A DIRECT CURRENT TYPE AND WOULD BE PERMANENTLY DAMAGED.
Fuse Holder
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Adjusting the Spindle Speed
The lathe has electronic speed control. There are three ranges of speeds which are obtained by changing the position of the drive belt.
To adjust the drive belt position:
1) Remove the bottom pulley access door by first loosening the four pozi-head securing screws. Then raise and lift off the door.
2) Open the upper belt cover by first loosening the retaining screw with a 3mm hex key. An alternative knurled head screw is supplied with the lathe, but this should not be fitted if the lathe is being used within the European Union.
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3) Loosen the belt tension lever locking handle.
4) Lift the belt tension lever and tighten the locking handle..
5) Move the slack belt to the alternate set of pulleys. Always remove the belt from the larger pulley first. Release the locking lever, apply light pressure to tension the belt and then re­tighten the locking handle.
6) Close the belt cover and re-fit the pulley door.
Forward/Reverse Switch On/Off Switch
Variable Speed Control
After switching on the lathe, adjust the speed using the variable speed control knob.
The approximate speed ranges are:
Left Hand Pulleys: 250rpm to 1400rpm
Centre Pulleys: 400rpm to 2650rpm
Right Hand Pulleys: 600rpm to 4300rpm
The actual spindle speed will be displayed on the LED Indicator.
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Recommended Turning Speeds
Workpiece Diameter mm
Roughing Cuts RPM
General Cutting RPM
Finishing Cuts RPM
Under 50
1500
3200
3200
50-100
750
1600
2500
100-150
500
1000
1700
150-200
500
800
1250
200-250
500
650
1000
250-300
500
530
850
Forward/Reverse Control
The Forward/Reverse switch should never be used when the lathe spindle is still rotating. Always stop the lathe by using the ON/OFF switch and wait for the workpiece to come to a standstill.
IMPORTANT The lathe should be reversed only if the chuck or faceplate is locked onto the spindle thread (e.g. with a grub screw) or when turning between centres with the morse taper drive centre.
Some chucks are not equipped with any form of locking and should never be used in reverse.
The faceplate supplied with the lathe has two thread-locking grub screws.
Using the Lathe
Fine adjustment of the tail centre is made by unlocking the winding handle locking lever (by half a turn only).
Turn the winding handle to enable the tail centre to be advanced or retracted. It has a travel of 70mm.
To slide the tailstock along the bed, pull up the silver tailstock locking lever.
When it is positioned where required, clamp it firmly in place by pressing the lever down firmly.
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The height of the tool rest can also be adjusted, using the black locking lever.
This type of lever can be rotated to a more convenient position, without moving the thread, by pulling the lever away from the thread to disengage the ratchet teeth and then rotating it.
The tool rest banjo can be moved along the bed of the lathe.
To release the tool rest banjo pull up the silver tool rest locking lever.
The tool rest can now freely slide along the bed, when it is positioned where required, clamp it firmly in place by pressing the lever down firmly.
Using the Indexing System
The lathe is fitted with an indexing system which allows the spindle to be locked in 24 positions (ie. at 15 degree intervals). The indexing facility is useful for fluted columns, clock faces and accurate hole placements.
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To set a position:
Lift the top belt pulley cover to expose the indexing ring. Mark a convenient position on the headstock casting and turn the faceplate to line up the required indexing position with it. Then lift and rotate the indexing pin, at the rear of the headstock, which will engage with the appropriate slot. The spindle is now locked in place.
To lock or unlock the spindle:
Lift and rotate the locking knob. Ensure that the horizontal pin is engaged in the shallow groove and the spindle is free to rotate before starting the lathe. Failure to do so could result in damage to the indexing mechanism.
Index Pin Disengaged Index Pin Engaged IMPORTANT The indexing pin should never be used as a spindle lock as this could result in
damage to pin and indexing wheel. Always use the spanner supplied to lock the spindle.
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Routine Maintenance
Replacing the Drive Belt
Eventually, the drive belt will become worn and require replacement.
To replace the belt, remove the motor pulley cover and top pulley access cover. Remove the chrome hand wheel from the spindle by unscrewing it from the spindle. Hold the spindle with the spanner and unscrew the handwheel anticlockwise using the knock-out bar as a lever. Remove the cover plate surrounding the spindle to allow access for the belt
Release the tension as when changing the speed range and remove the old belt by feeding it over the end of the spindle and through the aperture in the headstock casting.
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Replace by feeding the new belt through the opening in the lathe bed and over the bottom pulley, then over the corresponding upper pulley. Apply tension and tighten the locking handle. Ensure that the V- grooves are on the inside of the belt and engaged with the grooves on the pulleys.
Replacing the Motor Brushes
The carbon brushes should be regularly inspected and will need changing after approximately 500 hours use, or when the block has worn down to a length of 7mm.
Unscrew the two black plastic screws found on either side of the motor. Withdraw the worn brush and spring, then replace it with a new one.
Always replace both brushes at the same time.
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Optional Accessories
Our full range of accessories can be viewed on our website: www.charnwood.net
Viper3 Geared Scroll Chuck, 70mm Diameter.
A compact scroll chuck, with the jaws adjusted by a geared mechanism for simple one handed operation. Self-centring, high precision design.
DC16MT2 Drill Chuck 16mm Chuck Capacity with No.2
Morse taper (MT2) fitting. Supplied with chuck key.
ULEG A heavy duty floor stand
ideal for the 1420v lathe. The two platforms have a series of
slotted holes for securely mounting the lathe to the stand. The height of the stand is also adjustable so a comfortable working height can be set.
Supplied with 4 adjustable rubber feet.
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Fault Possible Cause Remedy
Machine will not start Power supply not connected Check plug connections in rear of control unit
Fuse in plug blown Replace fuse
Fuse in Control Box blown Replace Fuse
Break in power supply cable Visually check cable - replace if necessary
Loose terminal on switch Remove switch and check connections
Switch failed Replace switch
Machine will not start, Speed Display Lit Indexing Pin Engaged Disengage Indexing Pin
Fuse in Control Box blown Replace fuse
Speed controller failed Replace speed controller
Carbon brushes worn Replace carbon brushes
Machine starts only when green button held Switch has failed Replace Switch
Machine starts to turn but slow speed only Failed variable speed circuit Check connection to speed dial
Spindle stalls but motor still running Loose drive belt Increase belt tension
Motor is running but spindle not turning Broken drive belt Replace drive belt
Motor is overheating Too much load on motor Reduce load - make shallower cuts
Airflow around motor restricted Keep motor clear of shavings
Spindle rotation slows during cut Excessive depth of cut Make shallower cuts
Chisels are dull Sharpen chisels
Worn carbon brushes Replace brushes
Loose drive belt Increase belt tension
CHARNWOOD 1420V LATHE TROUBLESHOOTING GUIDE
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Charnwood 1420V Wiring Diagram
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Declaration of Conformity for CE Marking
Charnwood Declare that Woodworking Lathe, Model 1420V Conforms with the following Directives: Machinery Directive 2006/42/EC
And further conforms to the machinery example for which the EC type examination Certificate No. AM 50387407 which has been issued by TUV Rheinland LGA Products GmbH, Tillystrasse 2, 90431, Nurnberg, Germany.
I hereby declare that equipment named above has been tested and found to comply with the relevant sections of the above referenced specifications. The machinery complies with all essential requirements of the directive.
Signed: Dated: 11/09/2017 Location: Leicestershire
Richard Cook
Director
Please dispose of packaging for the product in a responsible manner. It is suitable for recycling. Help to protect the environment, take the packaging to the local amenity tip and place into the appropriate recycling bin.
Only for EU countries Do not dispose of electric tools together with household waste material!
In observance of European Directive 2002/96/EC on waste electrical and electronic equipment (EEE) and its implementation in accordance with national law, electric tools that have reached the end of their life must be collected separately and returned to an environmentally compatible recycling facility.
Your local refuse amenity will have a separate collection area for EEE goods
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Charnwood 1420V Parts List
Part No
Description
Part No
Description
01
Rubber Foot
02
D.C. Motor
03
Belt Tension Lock Lever
04
Flat Washer
05
Motor Plate
06
Cap Head Screw
08
Grub Screw
09
Cap Head Screw
10
Bed 11
Belt Door
12
Cross Head Screw
13
Screw
14
Cap Head Screw
15
Flat Washer
16
Handle
17
Cap Head Screw
18
Spring Washer
19
Headstock
20
Digital Readout Sensor
21
Location Pin Assembly
22
Spindle Pulley
23
Drive Belt 310J
24
Headstock Wheel
25
Locking Nut
26
Knockout Rod Assembly
27
Cover For Motor Pulley
28
Cap Head Screw
29
Grub Screw
30
Bearing
31
Circlip
32
Bearing 6005
33
Spindle
34
Cap Head Screw
35
Face Plate
36
Drive Centre
37
Revolving Tail Centre
38
Sleeve
39
Tailstock
40
Quill Lock Lever
41
Pin
42
Leadscrew
43
Tailstock Wheel
44
Handwheel Axle
45
Washer
46
Handwheel Handle
47
Grub Screw
48
Tailstock Lock Lever
49
Grub Screw
50
Tailstock Clamp Bolt
51
Tailstock Clamp
52
Nut 53
Circlip
54
Cross Head Screw
55
Cable Hook
56A
Tool Rest Stem 25mm Dia.
56B
Tool Rest Crossbar
57
Circlip 58
Banjo
59
Handle
60
Tool Rest Clamp Bolt
61
Tube 62
Banjo Lock Lever
71
Cross Head Screw
75
RPM Digital Readout
77
Wrench
78
Allen Key 3mm
79
Allen Key 4mm
80
Allen Key 5mm
81
Allen Key 12mm
82
Knob
83
Motor Pulley
84
Motor
85
Power Lead
86
Circuit Board
87
Connector for Motor Plug
88
Connector for Power Lead
89
Electrical Box
90
Rubber Grommet
91
Speed Controller
92
Variable Speed Knob
93
Box Cover
94
Switch - KJD20
95
Cross Head Screw
96
Cross Head Screw
97
FWD/REV Toggle Switch
BRUSH
Carbon Brushes x2
VS
Control Unit Complete Parts # 86-94 + 96
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Charnwood 1420V Parts Drawing
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Updated March 2018
Charnwood, Cedar Court, Walker Road,
Tel. 01530 516 926 Fax. 01530 516 929
email: sales@charnwood.net website: www.charnwood.net
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