Huvema HU 480 X 2200 VAC TOPLINE User manual

L A T H E
MODEL: HU 480 X 2200 VAC TOPLINE

Lathe HU 480 x 2200 VAC TOPLINE
General safety rules for all machines
N.B.: Read the instructions carefully in order to avoid any problems.
As with all machinery there are certain hazards involved with operation and use of this machine. Using the
machine with respect and caution will considerably lessen the possibility op personal injury. However, if normal
safety precautions are overlooked or ignored, personal injury to the operator may occur. Observe these rules
insofar as they are applicable to this particular machine.
This machine was designed for certain applications only. We strongly recommend that this machine NOT be
modified in any way and/or used for any application other than for which it was designed.
If you have any questions relative to its application DO NOT use the machine until you have contacted your
dealer.
1. For your own safety read the instruction manual before operating the tool.
2. Keep all guards in place and in working order.
3. Ground all tools.
4. Remove adjusting keys and wrenches. Make a habit of checking the machine before turning it on.
5. Keep the work area clean. Cluttered areas and benches invite accidents.
6. Do not use in a dangerous environment, such as damp or wet locations or expose to rain. Always keep the
work area well-lit.
7. Keep children and visitors away. They must be kept at a safe distance from the machine at all times.
8. Make sure that the work area is not accessible to unauthorised persons. Use padlocks, master switches,
remove starter keys etc.
9. Never overload the machine. The capacity of the machine is at its largest when properly loaded.
10. Do not force the machine or attachment to do a job for which it was not designed.
11. Wear proper apparel. No loose clothing, gloves, neckties, rings, necklaces, bracelets or jewellery: they may
get caught in moving parts. No slip footwear is recommended. Wear a hairnet to contain long hair.
12. Always wear safety glasses and work according to safety regulations. Use a face or dust mask if operation is
dusty.
13. Always secure workpiece tightly using a vise or clamping device. This will keep both hands free to operate
the machine.
14. Do not overreach. Keep your proper footing and balance at all times.
15. Maintain tools in top condition. Keep them sharp and clean. Read the instructions carefully and follow the
instructions for cleaning, lubrication and tool replacement.
16. Lubricate the machine and fill all oil reservoirs before operation.
17. Disconnect tools before servicing and when changing accessories such as blades, bits, cutters etc.
18. Use only recommended accessories. Consult the owner’s manual for recommended accessories. The use of
improper accessories may cause hazards.
19. Avoid accidental starting. Make sure the on/off switch is in the “OFF” position before plugging in the power
cord.
20. Never stand on the machine or tools. Serious injury could occur if the machine is tipped or if the cutting tool
is accidentally touched.
21. Check damaged parts. Replace or repair damaged parts immediately. Check machine for alignment of
moving parts, binding of moving parts, breakage of parts, mounting and any other conditions that may
affect its operation.
22. Direction of feed. Feed work into a blade or cutter against the direction of rotation of the blade or cutter
only.
23. Never leave tool running unattended. Do not turn power off until it has come to a complete stop.
24. Alcohol, medication, drugs. Never us the machine while under the influence of alcohol, medication or drugs.
25. Make sure the tool is disconnected from the power supply, before servicing, repairing etc.
26. Keep the original packing for future transport or relocation of the machine.
Always wear safety glasses!

CONTENTS PREFACE………………………………………………….. 3
1. WH HIGH SPEED PRECISION LATHE
1-1 Machine Assembly……………………………………..4
2. UNPACKING &MACHINE INSTALLATION
2-1 Unpacking……………………………………………... 6
2-2 Lifting……………………………………………….. ...6
2-3 Basic Foundation……………………………………. ...7
2-4 Cleaning……………………………………………......7
2-5 Level Adjustment……………………………………… 8
3. ELECTRICAL CIRCUIT CONTROL
3-1 Electrical Wiring………………………………………. 9
3-2 Electrical Equipment…………………………………...9
3-3 Electrical Cautions…………………………………... ....9
3-4 Circuit Diagram………………………………………...10
4. TESTING &OPERATION
4-1 Operation Symbols………………………………….. 11
4-2 Transmission &Stop of Spindle…………………….. 12
4-3 Spindle Speed Selection…………………………….. 12
4-4 Intermittent Operation of Spindle………………….... 13
4-5 The Importance and Methods of
Spindle Leveling Adjustment……………………….. 14
4-6 Transmission &Stop of Gear Box…………………... 15
4-7 Gear Box Operation…………………………………. 15
4-8 Manual Operation………………………………….... 15
4-9 Automatic Feeding Operation………………………. 16

CONTENTS
4-10 Automatic Feeding Stop Operation………………….. 16
4-11 4-Position Automatic Feeding Stop Operation………. 16 4-
12 Tailstock Operation………………………………….......... 17
5. THREADING
. 5-1 Leadscrew Drive……………………………………….... 18
5-2 Threading……..……………………………….......... 18
5-3 Thread Dial Indicator……………………………………. 18
5-4 Thread &Feed Chart……………………………............ 20
5-5 Module &D.P. Thread Chart……………………............ 23
6. LUBRICATION
6-1 Headstock Lubrication………………………………….. 25
6-2 Gear Box &Apron Lubrication…………………............ 25
6-3 Lubrication Charts………………………………............ 25
6-4 Lubrication Location……………………………….. 26
7. MAINTENANCE &ADJUSTMENT
7-1 Headstock……………………………………………... 27
7-2 Apron &Saddle……………………………………….. 28
7-3 Gear Box…………………………………………......... 29
7-4 Tailstock Center Line Adjustment…………………….. 29
7-5 Belt Tension Adjustment……………………………….30
7-6 Brake Belt Adjustment……………………………........30
7-7 Brake &Micro Switch Adjustment…………………… 31
7-8 Leadscrew Backlash Adjustment……………………… 31
7-9 Cutting Coolant Repair………………………………... 31
8. PART LISTS……………………………………….....32

1. INVERTER TRANSMISSION LATHE
1-1 Machine Assembly
4

ITEM
DESCRIPTION
ITEM
DESCRIPTION
1
Spindle speed control switch
20
Carriage clamping lever
2
Spindle speed H/L shifting lever
21
Foundation adjusting bolt
3
Speed display
22
Spindle operation control rod
4
Forward/Reverse Shifting lever
23
4 position automatic feed
stop selection rod
5
Thread/Feed Selection lever
24
Leadscrew
6
Thread/Feed Shifting lever
25
Auto-feed rod
7
10-step feed selection dial
26
Tailstock set over
adjusting Screw
8
Alarm removing button
27
Tailstock body
9
Intermittent T button
28
Tailstock handwheel
○
10
Coolant supply button
29
Tailstock body Clamping lever
11
Spindle operation control lever
30
Tailstock spindle locking lever
12
Adjustable trip dog
31
Rack
13
Longitudinal feed hand wheel
32
Compound rest handle
14
Cross slide handle
33
Coolant control valve
15
Trip plunger
34
Compound rest
16
Auto feeding engaged lever
35
Four way tool post
17
Foot brake pedal
36
Tool post clamping lever
18
Half nut engaged lever
37
Thread dial indicator
19
Feed axis selector
38
Electric Cabinet
5

2. UNPACKING & MACHINE INSTALLATION
2-1 Unpacking
When the machine arrives:
Check first to see if the crate or container is damaged.
Open the case and inspect for any damage to the machine or missing parts.
If you find any damage or missing parts, contact our company or the appropriate
insurance company immediately.
Failure to report any discrepancies or damage immediately cold result in a delay
or the possibility of a claim being denied.
2-2 Lifting
Please refer to figure 2-2 for unloading and moving of machine.
1. Use hanging jig to lift the machine.
2. Locate the jig at approximately the center of the lathe.
3. Move apron and tailstock towards the end of bed to balance the weight.
4. To insure the accuracy of machine, not to jar the machine when it is placed
on its foundation.
5. The backside of the machine should be at least 600mm away from any wall
or obstruction to obtain sufficient space for wiring the electric cabinet.
Fig.2-2
6

2-3 Basic Foundation
With today’s common use of
tungsten carbide cutting tools,
heavy cutting practices and higher
spindle speeds, a good machine
foundation is a must to avoid
vibration, Please refer to figure 2-
3 for recommended foundation.
300
35
95
2 5 0
65
UNIT-mm Fig2-3
2-4 Cleaning
Before shipping, the machine is protected with a special anti-rust agent. Before
operating the machine, this agent must be removed. This can be done using a
soft brush/cloth soaked with cleaning solvent or kerosene. To avoid the danger
of fire or explosion, do NOT use gasoline or cellulose solvent. After the anti-rust
agent is removed, the machine should be properly lubricated and all moving
parts be checked for proper operation.
2-5 Leveling
Once the machine is on its foundation it is time for leveling. A machinist level
(accuracy 0.02mm/1000mm) should be used. Place level on bed to level machine
for longitudinal and transverse leveling. Tighten foundation bolts, and recheck.
If not level, loosen foundation bolts and re-level machine.
Tolerance should be within
0.04mm/1000mm. (See Figure 2-5)
7

Fig 2-5
3. ELECTRICAL CIRCUIT CONTROL
3-1 Electrical wiring
The electrical wiring can be found by
opening the electrical control box located
on the back of the machine. Connect the
power source to the terminals labeled
R.S.T. (For 16” & 18” use 8 gauge wire,
for 22” & 26” use 4 gauge wire).
The connection between the power source
and the machine should be equipped with
a safety fuse. Also make sure the machine
is grounded.
8

3-2 Electrical Equipment
1. To protect the motor from burning out due to an overload, the electrical
control box is equipped with an overload circuit breaker and magnetic
contactor.
2. A micro switch protects the main switch.
3. The foot brake is connected to a micro switch. Stepping on the foot brake
stops the lathe much faster than turning off the switch. After using the foot
brake. The forward/reverse lever must be returned to neutral before the
spindle can be operated.
4. The spindle will rotate continuously as long as the intermittent button ○Tis
depressed.
3-3 Electrical Cautions
After wiring, the rotation of the spindle must be checked. To do this, turn the
main switch to “ON” and push the intermittent button ○T, if the rotation is
counter clockwise (looking from the tailstock), the rotation is correct. If the
rotation is clockwise, changing any two of the three wires R.S.T will correct the
problem.
9

4. TESTING & OPERATION
4-1 Operation Symbols
Variable adjustment
High speed
(pressure)
Clockwise:
1
HIGH revolution
11
Countercloc kwise:
pressure increase
pressure decrease
2
LOW
Low speed
12
Electrical
Revolution
control box
3
Forward
13
THREADS
Imperial threads
revolution
N
4
□
Neutral gear
14
mm Metric threads
5
Reverse revolution 15
mm
Auto feeding
Rate per
revolution
6
Feeding
16
Pump
7
T
Intermittent
17
GREEN
Power switch-ON
button
8
Cross feeding
18
RED
Power switch-OFF
9
Longitudinal
19
OIL
Oil inlet (hole)
feeding
10
Cone clutch
10

4-2 Transmission & Spindle Operation
After all the previously described procedures have been done, it is time to test
the machine. Position the spindle H/L lever ○2to “L”, turn speed control button
○1counterclockwise to lowest speed and forward/reverse lever ○4to the “N”
position. Lift the spindle operation control lever (○11 of item 1-1), and the
spindle will rotate in the forward direction. To reverse spindle direction, push the
lever down. Place lever in neutral to stop spindle. The foot brake is used for
emergency stop. After using the foot brake, the forward/reverse lever must be
returned to neutral before the spindle can be operated again.
Fig 4-2
4-3 Spindle Speed Selection
There are three speeds on inverter transmission lathe: H (High), N (Neutral) and
L (Low). Speed range in H is from 235rpm to 2000rpm, in L is from 20rpm to
170rpm.
Turn speed control button ○1counterclockwise to the lowest speed and select
speed range by turning lever ○2to proper position, then lift or press down
spindle operation control lever (○11 of item 1-1) to start spindle. Rotate speed
control button ○1to choose applicable speed, clockwise for speeding up and
counterclockwise for slowing down. Spindle speed shows on display ○3.
For safety consideration and to protect the gears from damage, spindle speed
H/L lever ○2can be shifted only when the motor is completely stopped. If the
gears do not engage easily, use intermittent button ○Tto engage gears. Be sure
gears are properly engaged before starting lathe.
11

4-12 Tailstock Operation
1. The tailstock handwheel dial is divided in 0.001” per graduation. Rotating
the handwheel clockwise moves the quill out, counterclockwise retracts the
quill. Retracting quill will release the center or other tool being used.
2. To lock the quill, push locking lever forward. (○30 Fig. 4-12).
3. The centerline of the tailstock can be adjusted using set-over adjusting screw
○26 Fig.4-12. After adjusting, be sure to tighten screws on both sides.
Fig. 4-12
5. THREADING
5-1 Leadscrew Drive
Moving the Forward/Reverse lever (○4of item 1-1) to the right will cause the
leadscrew to rotate backwards, moving the lever to the left the leadscrew will
rotate forward and when lever is in neutral the leadscrew will stop.
5-2 Threading
1. After selecting the thread to be cut, set the following levers to the appropriate
position: ○5, ○6& ○7of item 1-1. (Example 18 T.P.I.: PAE2)
2. Turn off the lathe.
3. Engage the halfnut by pushing ○18 of item 1-1 down, making sure it is fully
engaged.
16

5-3 Thread Dial Indicator
1. Thread dial indicator for Imperial leadscrew
To cut even number threads the leadscrew can be engaged on any number or
line. For odd number threads the leadscrew can be engaged on any number.
Fractional threads (1/2, 1/4 etc.), leadscrew can only be engaged on the same
number or line.
Note: When cutting metric threads on a lathe with an Imperial leadscrew, be
sure the half nut is engaged at all times. (If not, the thread will not repeat.)
2. Thread dial indicator for Metric leadscrew for cutting metric threads
There are two dials used for metric leadscrews, 2 & 7 divisions and 3 & 5
divisions. To cut threads with pitches of 1.25, 2.5, 5.0, 2.25 and 4.5, use the 3 &
5 division dial. For the balance of threads , use the 2 & 7 division dial. For
cutting thread pitches of 0.5, 0.75, 1.0, 1.5, 2.0, 3.0, 4.0 and 6.0, use the 14T
worm gear and 2 & 7 division dial. The Maximum number of divisions on the
dial are 7, however, you can only engage the dial on 2 of these numbers.
Gear
Pitch
Dial
Halfnuts Engaged Number
Teeth
Division
11T
2.75
5.5
2
1
13T
3.25
6.5
2
1
1.75
3.5
2
1.2
7
14T
0.5
0.75
1
1.5
7
1,2,3,4,5,6,7
2
3
4
6
1.25
2.5
3
1,2,3
15T
5
2.25
4.5
5
1,2,3
18T
6.75
2
1,2
17

Fig 4-3
4-4 Intermittent Operation of Spindle
The lathe has been equipped with an intermittent button ○9to simplify speed
changes, check rotation and work piece centerline. This function only works in
the forward direction.
12

4-5 The Importance and Method of Spindle Balancing
1. lathe with a spindle that is out of balance can cause chatter and a poor finish
on the workpiece. To ensure proper spindle balance, our lathes are equipped
with balancing weights located on the locking ring at the rear of the spindle.
2. To properly balance the spindle, first run the lathe at 1350rpm. Put the palm
of your hand on the headstock and check for any vibration. Moving the
balance weights left or right can eliminate any vibration detected.
4-6 Transmitting Power to the Gear Box
Lever ○4of item 1-1, controls the direction of the lead screw. This lever has
three positions, Left, Right and Neutral.
13

4-7 Gear Box Operation
1. Threading
With our special design, there is no need to re-arrange the back gears for
threading. Please refer to the threading and feed tables for correct settings. The
levers used for setting the feed rate or T.P.I are:
a. Feed direction ○4of item 1-1.
b. Thread/Feed lever ○5of item 1-1.
c. Thread/Feed lever ○6of item 1-1
d. 10 step selection dial ○7of item 1-1
2. Auto feed
After selecting the proper setting for either feed rate or threading you can use the
appropriate lever for the desired operation. Auto feed ○16 of item 1-1, or half
nut engagement lever ○18 of item 1-1.
4-8 Manual Operation
For manual operation, move both the half nut lever ○18 and lever ○4of item 1-
1 to neutral position. Hand wheel ○13 Fig. 4-8 controls the apron movement,
○14 controls the cross slide and ○32 controls the compound. The graduations on
all the dials are graduated in both metric and inch. Metric is 0.02mm per
graduation and inch is 0.001” per graduation.
Fig. 4-8
14

4-9 Automatic Feed
1. Position lever ○4of item 1-1 to the required position.
2. Move lever ○5& ○6of item 1-1 to the desired feed rate or thread.
3. For threading, use lever ○18 of item 1-1. Be sure lever is fully engaged.
4. For cross feed, push the feed axis selector lever ○19 of item 1-1 down.
5. To reverse the cross feed, pull the feed axis selector lever ○19 of item 1-1 up.
4-10 Automatic Feed Stop
The apron is equipped with an automatic stop device. To set this stop, loosen
the setscrew on the top of the dog ○12 Fig. 4-10 and move to the desired
location. With the dog in place and the top tip facing out tighten the setscrew.
When dog comes in contact with the trip plunger (○15 of item 1-1located at the
bottom of the apron) the carriage will
stop. Always test the stop
before you start machining
to avoid damage to the
lathe and or workpiece.
Fig. 4-10
4-11 Position Automatic Feed Stop
This feature gives you the option to set up to 4 stops. Dogs are stet individually
and can be set to trip the plunger going in either direction. If the dog is not
needed, simply turn it so the top tip is facing inward and the plunger arm will
pass by it.
15

5-4 Thread & Feed Chart
For Swing 16”, 18” (410mm, 460mm) Series while Metric Leadscrew & Metric
Feed.
LEAD SCREW-P=6mm
R
56
PAD10
32
PAD1
18
PAE2
9 1/2
PAF3
54
PAD9
28
PAE10
16
PAE1
9
PAF2
52
PAD8
27
PAE9
14
PAF10
8
PAF1
48
PAD7
26
PAE8
13 1/2
PAF9
7
PBF10
46
PAD6
24
PAE7
13
PAF8
6
PBF7
44
PAD5
23
PAE6
12
PAF7
5 1/2
PBF5
40
PAD4
22
PAE5
11 1/2
PAF6
5
PBF4
38
PAD3
20
PAE4
11
PAF5
4 1/2
PBF2
36
PAD2
19
PAE3
10
PAF4
4
PBF1
LEAD SCREW-P=6mm
C
0.5
PSF1
1.75
PSE10
3.5
PSD10
6
PUD7
0.75
PSF7
2
PSD1
4
PUD1
7
PUD10
1
PSE1
2.25
PSD2
4.5
PUD2
1.25
PSE4
2.5
PSD4
5
PUD4
1.5
PSE7
3
PSD7
5.5
PUD5
mm
mm
C.T.
C.T.
0.05
MF1
0.30
MD4
0.02
MF1
0.15
MD5
0.06
MF2
0.34
MD5
0.03
MF3
0.17
MD7
0.08
MF5
0.37
MD7
0.04
MF7
0.20
MD10
0.10
MF10
0.42
MD10
0.05
ME1
0.24
PD2
0.13
ME2
0.48
PD1
0.06
ME3
0.27
PD4
0.17
ME5
0.54
PD2
0.07
ME5
0.30
PD5
0.21
ME10
0.60
PD4
0.08
ME7
0.34
PD7
0.24
MD1
0.74
PD7
0.1
MD1
0.40
PD10
0.27
MD2
0.82
PD10
0.12
MD2
18

For Swing 16”, 18”, 20” (410mm, 460mm, 510mm) Series while Imperial
Leadscrew & Imperial Feed
LEAD SCREW - 4TPI
R
56
PAD10
32
PAD1
18
PAE2
9 1/2
PAF3
54
PAD9
28
PAE10
16
PAE1
9
PAF2
52
PAD8
27
PAE9
14
PAF10
8
PAF1
48
PAD7
26
PAE8
13 1/2
PAF9
7
PBF10
46
PAD6
24
PAE7
13
PAF8
6
PBF7
44
PAD5
23
PAE6
12
PAF7
5 1/2
PBF5
40
PAD4
22
PAE5
11 1/2
PAF6
5
PBF4
38
PAD3
20
PAE4
11
PAF5
4 1/2
PBF2
36
PAD2
19
PAE3
10
PAF4
4
PBF1
LEAD SCREW-P –4TPI
C
0.5
PSF1
1.75
PSE10
3.5
PSD10
6
PUD7
0.75
PSF7
2
PSD1
4
PUD1
7
PUD10
1
PSE1
2.25
PSD2
4.5
PUD2
1.25
PSE4
2.5
PSD4
5
PUD4
1.5
PSE7
3
PSD7
5.5
PUD5
in
in
C.T.
C.T.
0.002
MF1
0.001
MD4
0.001
MF7
0.0043
MD8
0.0025 MF2
0.012
MD5
0.0012 MF10
0.0047
MD10
0.0031 MF5
0.014
MD7
0.0015 ME2
0.0052
PD1
0.0039 MF10
0.016
MD10
0.0017 ME4
0.0060
PD2
0.0051 ME2
0.018
PD1
0.002
ME7
0.0071
PD5
0.006
ME5
0.020
PD2
0.0023 ME10
0.0078
PD7
0.008
ME10
0.023
PD4
0.0026 MD1
0.0086
PD8
0.009
MD1
0.027
PD7
0.0030 MD2
0.0094
PD10
0.010
MD2
0.032
PD10
0.0036 MD5
19