Acer Dynamic 1722S User manual

1
OPERATION MANUAL
& PART LISTS
HIGH SPEED PRECISON ENGINE
LATHE
Model: Dynamic 1722S~1790S
Dynamic 1922S~1990S
Dynamic 2122S~2190S
Taiwan: Ya-Gin Machine Tool Manufacturing Inc.
Ya-Wei Machine Tool Manufacturing Inc.
No. 101, 506 Lane, Seng-Tso Road
Seng Karng District, Taichung City, Taiwan
Tel: [phone] Fax: [phone]
CA: Springwood Industrial, Inc.
2320 E Valencia, Fullerton, CA 92830 USA
Tel: [phone] Fax: [phone]
NJ: Klim Industrial, Inc.
244 N. Randolphville Rd, Piscataway, NJ 08854 USA
Tel: [phone] Fax: [phone]
Revised: 8/3/23
ACER

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CONTENT
Page No.
PREFACE 5
SPECIFICATION 6
1. ACER HIGH SPEED PRECISION ENGINE LATHE
1-1 Machine Description 8
2. UNPACKING & MACHINE INSTALLATION
2-1 Unpacking 10
2-2 Lifting 10
2-3 Basic Foundation 11
2-4 Cleaning 11
2-5 Level Adjustment 12
3. ELECTRICAL CIRCUIT CONTROL
3-1 Electrical Wiring 13
3-2 Electrical Equipment 13
3-3 Electrical Cautions 13
3-4 Circuit Diagram 14
4. TESTING & OPERATION
4-1 Operation Symbols 19
4-2 Transmission & Stop of Spindle 20
4-3 Spindle Speed Selection 20
4-4 Jogging (Inching) Operation of Spindle 21
4-5 The Importance and Methods of Spindle Balancing Adjustment 22

3
4-6 Transmission & Stop of Gear Box 23
4-7 Gear Box Operation 23
4-8 Manual Operation 23
4-9 Automatic Feeding Operation 24
4-10 Automatic Feeding Stop Operation 24
4-11 4-position Automatic Feeding Stop Operation 24
4-12 Tailstock Operation 25
5. THREADING
5-1 Leadscrew Drive 26
5-2 Threading 26
5-3 Thread Chasing Dial 26
5-4 Thread & Feed Chart 28
5-5 Module & D.P. Thread Chart 32
6. LUBRICATION
6-1 Headstock Lubrication 34
6-2 Gear Box & Apron Lubrication 34
6-3 Lubrication Chart 34
6-4 Lubrication Location 35
7. MAINTENANCE & ADJUSTMENT
7-1 Headstock 36
7-2 Apron & Saddle 37
7-3 Gear Box 38

4
7-4 Tailstock Center Line Adjustment 38
7-5 Belt Tension Adjustment 39
7-6 Brake Belt Adjustment 39
7-7 Brake & Limit Switch Adjustment 40
7-8 Leadscrew Backlash Adjustment 40
7-9 Coolant System Repair 40
8. DELETED & LEFT BLANK
9. MECHANICAL DRAWINGS & PARTS BREAKDOWN
LIST
Each Assembly of the Lathe 42
9-1 Headstock: Ф58mm or Ф78mm 43
9-2 Gear Box 49
9-3 Apron 55
9-4 Bed and Base 61
9-5 Brake System 64
9-6 Carriage and Crossfeed Assembly 67
9-7 Tailstock Assembly 70
9-8 Steady Rest Assembly 73
9-9 Follow Rest Assembly 75
9-10 Coolant System Assembly 77

5
PREFACE
Thank you for purchasing our lathe to be your manufacturing tool. Before operating the lathe, it is
necessary to study our manual. If operated correctly, the machine is very efficient and veryeasy-to-
work with.
This manual consists of 7 chapters, mainly including operation, maintenance and list of spare parts.
Please read the manual thoroughly from the first page to the last in order to be familiar with this
machine, and to work efficiently and accurately with the lathe. Besides, based on safety
consideration, the operator must be well trained according to all the instructions in the manual. Any
damage of the machine and injury on the operator that is caused by miss-operation and disregard of
our instruction are not covered under warranty.
In addition to the instructions listed in our manual, there are some matters needing attention as
well:
1. Do not expose the machine outdoors in order to avoid any damage caused by the weather.
Besides, please keep the machine away from cooling blower.
2. Lubricate the machine with recommended or specified lubricant or grease.
3. Remove chips from time to time to keep the machine clean, this will prolong the life span of the
lathe.
4. If the bedway is dented, please do not move the carriage until the bedway is repaired.
If you have any question, please do not hesitate to contact personnel at ACER group.

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7

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8. ACER HIGH SPEED PRECISION ENGINE LATHE
1-1 Machine Description
Note: Color of the lathe depends on OEM specification. Figure 1-1

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ITEM
DESCRIPTION
ITEM
DESCRIPTION
1 Spindle speed shifting lever 20 Carriage clamping lever
2 Spindle speed H/L shifting lever 21 Foundation leveling screw
3 Spindle speed shifting
selection lever 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 adjusting gib screw
8 Power source switch
(Main switch) 27 Tailstock body
9 Jog button 28 Tailstock handwheel
10 Coolant supply button 29 Tailstock body Clamping lever
11 Spindle 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 ball 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 engagement lever 37 Thread Chasing dial
19 Feed axis selector

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2. UNPACKING & MACHINE INSTALLATION
2-1 Unpacking
When the machine has arrived, first, please check to see if the wooden crate is
damaged or not? Secondly, open the crate and inspect the machine for any damage or shortage
of accessories. If so, please contact our company or insurance companyimmediately in order
to get the best solution; otherwise our company or the insurance company will not be able to
compensate for the damage.
2-2 Lifting
Please refer to figure 2-2 for machine unloading and moving.
The steps for lifting the lathe are:
(1) Clamp the bedways with a specially made hanger, which consists of a clamp and a wire
rope.
(2) Raise the lathe a little bit with overhead crane, and then check to see if the lathe is
balanced. If not, please slide hanger’s position left or right to achieve machine’s balance.
(3) When the machine arrives at the location, slowly put down the machine to the floor.
Please avoid bumps or crash to ensure machine’s accuracy is not altered.
(4) For easier access to the electrical cabinet, the back side of the lathe or cover of the electric
cabinet should be at least 600mm (2 feet) from wall.
Fig. 2-2

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2 – 3 Basic Foundation
With the common usage of tungsten carbide cutting tools, nowadays, heavy cutting
and quicker spindle speed are desired. This combination may cause vibration easily. In order
to ascertain the best cutting condition, it is necessary to build a sound & good floorf o u
n d a t i o n . ( P l e a s e r e f e r t o f i g u r e 2 - 3 for basic
structure.)
Each individual leveling screw is recommended to have a J-hook bolt foundation made as
displayed on figure 2-3. This design will grip machine soundly to the floor and achieve a
better leveling accuracy. Thus reduces the chance of getting vibration.
2 – 4 Cleaning
The machine is protected with a special anti-rust agent before delivery. Before
operating the machine, please clean all assemblies, especially the slideways, leadscrew,
g e a r r a c k s a n d a l l g r o u n d e d s u r f a c e s w i t h s o f t b r u s h / c l o t hsoaked
with cleaning solvent or kerosene.
Do NOT use gasoline or cellulose solvent to clean! This is to avoid danger from fire or
explosion. After removing the anti-rust agent, please lubricate the machine. Next thenc
r a n k t h e m o v i n g m e c h a n i s m l i k e t o o l p o s t , t a i l s t o c k b y hand
back & forth within their moving range to test run the assembly.

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2 – 5 Level Adjustment
Once the J-hook bolt and concrete are completely dried and fixed, it is time to
adjust the level of the bedways. Two machinist’s levels (accuracy 0.02mm/1000mm) should
be placed on the cross slide of the machine. Adjust the bolt for longitudinal direction of bed
level. For transverse direction of bed level, tighten the nuts until the a c c u r a c y
i s w i t h i n 0 . 0 4 m m / 1 0 0 0 m m . T h e n
please check the levels again.
If the deviation is resulted from tightening the nuts, it is necessary to make
another adjustment. (See Fig 2-5)
Fig 2-5

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3. ELECTRICAL CIRCUIT CONTROL
3-1 Electrical Wiring
The electrical control box can be found by opening its cover at the back side of bed. Connect
the power source wires to the connecting points (R.S.T)
The wire-grade for the power
source and the connecting points must be
more than cross sectional area of 8mm2(5.5
mm2for 460V or 18” series).
The main switch between machine
and power source also should be equipped
with fuse-breaker. Besides, the machine
must be connected to ground.
Figure 3-1
3-2 Electrical Equipment
1. The electrical control box is also equipped with overload circuit breaker and electric magnetic
contactors to protect motors from current overload.
2. The main switch is connected with micro switch.
3. The foot brake is connected to a micro switch. Stepping on the footbrake is quicker to stop the
lathe than turning off the spindle on/off switch. The spindle will rotate again by lifting the spindle
control lever.
4. The spindle will run continuously as long as the jog button on the top of the electrical panel is
pressed.
3-3 Electrical Cautions
After power connection, please check the rotation of the spindle. Turn the main switch “ON” and
make sure the safety of spindle. Then push jog button (T) momentarily. The correction direction of
the spindle rotation is counter clockwise. (Please look from tailstock end to the spindle side.) Wrong
direction of rotation can be rectified by interchanging any two of the three phasewires (R.S.T.) in
the power source.

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COM NC COM NC
COM
NO
0V 220V 380V 514V 440V
NC
COM
NO
NC
0V 12V 24V
5A
5A
U1 V1 W1 14
V W
LIGHT
(OP) (OP)
QS11 FU1(50A)
SQ1 SQ2
R2
SPINDLE
MOTOR
10HP
7 1/2HP
5HP
COOLANT
MOTOR
1/8HP
SA1 POWER SWITCH
SA2 COOLANT SWITCH
SB1
E-STOP SWITCH
SB2 JOGGING SWITCH
QS1 DOOR SWITCH
SQ1 END COVER
SQ2 BRAKE
SQ3 FORWARD
SQ4 REVERSE
3-4
Circuit Diagram

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16

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Model: Dynamic 2180S 230V 7.5HP
Item
designation
Description
and function
Suppliers
Reference Technical data
Supplier
Name
1
TC1 Transformer
LCP-TBS
JY-159
160VA
0-460V/0-110V
LUNG
GHI
2
QS1
Power on/off
Switch P1-25/V/SVB 600V 10KA 50A MOELLER
3 FU1 Fuse Blocks FSX-303 3P -600V/30A GIKOKA
4 FU2 Fuse Blocks TFB-102 250V/10A TEND
5 FU3 Fuse Blocks TFB-102 250V/10A TEND
6 FU4 Fuse Blocks
7 FU5 Fuse Blocks
8 FU6 Fuse Blocks
9 FU1 Fuse 14*51*3P 500V-50KA/aM40A
10 FU2 Fuse 10*38*2P 30mm/3A
11 FU4 Fuse 10*38*2P 30mm/3A
12 FU5 Fuse 10*38*1P
13 FU6 Fuse 10*38*1P
14
KM1
Magnetic
Contactor CU-27
Coil ac24v/ 230V
7.5HP TECO
15
KM2
Magnetic
Contactor CU-27
Coil ac24v/ 230V
7.5HP TECO
16
KM3
Magnetic
Contactor CU-11-3A1a Coil ac24v/ 230V 5HP TECO
17
KA1
Magnetic
Contactor
CU-11-3A1a Coil ac24v/ 230V 5HP TECO
18 FR1 Overload Relay RHN-80K4 23-32A(26A) TECO
19
FR2 Overload Relay RHN-10K
0.3-0.32A
230V(0.38A) TECO
20
X Terminal Blocks TB30A*6P 600VA /30A GIKOKA
21
X Terminal Blocks TB20A*16P 600VA/ 20A GIKOKA
22 SA1 Selection Switch LSS-251AG 250V 6A 1A (G) RENY
23 SA2 Selection Switch LSS-251AG 250V 6A 1A (G) RENY
24 SB1 Emergency Stop LBK-251BR 250V 6A 1B ( R ) RENY

18
25
SB2
Push button
Switch LBFR-251AG 250V 6A 1A ( G ) RENY
26 HL Indicator Lamp LPNR-251W AC-30V ( W ) RENY
27 SQ1 Limit Switch Mj2-1704 250V 15A MOUJEN
28 SQ2 Limit Switch Z-15GW22-B 250V 15A OMRON
29 SQ3 Limit Switch Mj2-1704 250V 15A MOUJEN
30 SQ4 Limit Switch Mj2-1704 250V 15A MOUJEN
31 SQ5 Limit Switch XCKN2102G11 240V 10A TE
32 M1 Spindle Motor 230V/460V 7.5HP 230V/460V 5.595KW
33
M2 Coolant Pump
230V/460V
1/8HP 230V/460V 0.93KW

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

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4-2 Transmission & Stop of Spindle
After the procedure described previously in this manual has been done, it is time to test run the
machine.
Position the spindle speed H/L shifting lever #2 to “L”, the spindle speed shifting selection lever
#3 to the very left side, and forward/reverse shifting lever #4 to “N” position. Lift the spindle control
lever (#11 of item 1-1), the spindle will rotate forward, press down the lever, the spindle willrotate
reverse; in ‘Neutral’ position, the spindle will stop. For normal forward & reverse rotation, always
operate the spindle control lever. For emergency stop, step on the foot brake, the spindle control
lever should push back to ‘Neutral’ position after stepping the foot brake. Afterward, please restart
the spindle.
Turn the coolant supply button (#10 of item 1-1). Adjust the coolant control ball valve for the
required coolant flow.
Figure 4-2
4-3 Spindle Speed Selection
Spindle speed selection is made up from combination of three speed-shifting levers:
1. Spindle speed shifting lever
2. Spindle speed H/L shifting lever
3. Spindle speed shifting selection lever for total of 12 spindle speed numbers
Put the spindle speed H/L shifting lever to ‘neutral’ gear between ‘H’ and ‘L’ rotate the spindle
by hand.