Sharp 1118H User manual

OPERATION MANUAL
& PARTS LIST
Machine Model No.:
Machine S/N.:
1118H

CONTENTS
PAGE
PURPOSE OF THIS MANUAL………………………………………….... 1
LEVEL ADJUSTMENT PROCES…………….….…….……..…………... 2
LIFTING MACHINE…………….………………………………….……..... 3
A.) INSPECTION AND CLEANING OF MACHINE………….………… 3
B.) FOUNDATION, INSTALLATION, AND LEVELING………………… 3
C.) ELECTRICAL CONNECTIONS..…………...……………………….. 4
D.) LUBRICATION…………….……………..…….……………………… 5
E.) SPINDLE CONTROL LEVER…………………….…..……………… 6
F.) QUICK CHANGE GEAR BOX…….………..………………………... 7
G.) AUTOMATIC THREAD LENGTH CONTROL….…………………… 8
H.) SPINDLE BRAKE……………………………………………………... 8
I.) BELT ADJUSTMENT…….…………………….…............................. 9
J.) COLLET CLOSER-REMOVAL….……...………..….….……………. 9
K.) COLLET CLOSER-REPLACEMENT…….…….……….…………... 9
L.) COLLET CLOSER-ADJUSTMENT…..……….…..……………....... 10
M.) CARRIAGE INDICATED RING….…….…………………………….. 10
N.) CARRIAGE LOCK.……………………………………………………. 11
O.) CARRIAGE CLUTCHES……………………………………………… 11
P.) CROSS SLIDE INDICATING RING………….………….…………... 11
Q.) QUICK-ACTING TOOL POST COMPOUND SLIDE ASSEMBLY... 12
R.) POWER FEED UNIT……….………….………….……….…………. 13
S.) COOLANT FACILITIES……………………………………………..... 14
T.) TAILSTOCK.................................................................................... 14
U.) TAILSTOCK-SPINDLE LOCK.….…………….………...…………… 14
V.) TAILSTOCK BODY LOCK…….………….………………………….. 14
THREAD CUTTING………………………………………………………… 15
OUTSIDE CHANGE GEARS................................................................. 19
METRIC THREADS USING OUTSIDE CHANGE GEARS…………..... 22
PARTS ASSEMBLY NUMBER…………………………………………….. 30
ELECTRIC CONTROL PARTS&RD………………………………………. 64

1
PURPOSE OF THIS MANUAL
The model 1118H series machine is built for easy and safe operation and
excellent manufacturing of work in process. The machine is built with high
quality material, and carefully to exacting standards that guarantee the life,
economical use, accuracy, and minimum maintenance of the machine.
This manual is an introduction to the SHARP model 1118H HIGH
ACCURACY TOOL ROOM LATHE. It is used for installation, operation and
maintenance of the 1118H SHARP MACHINES.
Also, for fast reference, because it is necessary to make minor
adjustments or do preventive maintenance. (For personnel and operators who
deal with the 1118H machine.)
FOR MODEL 1118H EQUIPPED WITH ELECTRONIC VARI-SPEED
SYSTEM

2
Place one spirit level in Z direction and one in X direction on slide way
1118H
Level adjustment process
1. Put pads C (Figure B) under each of six points.
2. Insert the pillar A into the pedestal hole and adjust the nut B to the location
according to machine level need.
3. Make sure every point is touching the ground to support the machine.

3
Lifting machine, arrange rope or cable as shown in figure 1, and check to see if the
correct balance has been obtained. Then insert pads of soft cloth between the edges of the
rope and machine. The net weight of this machine is approx 1050kgs (2300 lbs). So the
rope or cable must be rated at 3000 lbs capacity.
A.) INSPECTION AND CLEANING OF MACHINE
An inspection should be made after arrival of the machine in your plant. Look for possible
damage caused by shock or vibration during transportation, also check for any missing
parts, standard tools or other equipment.
In shipment, all exposed surfaces of the machine are coated with a antirust liquid. Before
moving carriage and cross-slide, leadscrew tailstock…etc, these surfaces should be
thoroughly cleaned to remove all antirust liquid use a soft brush and solvent. This is very
important because it can prevent any dirt or grit which may have accumulated on the
antirust liquid from working under the sliding members and causing undue wear.
※CAUTION：
：：
：DO NOT USE COMPRESSED AIR TO CLEAN, WHICH WILL
REDUCE THE MACHINES LIFE.
B.) FOUNDATION, INSTALLATION, AND LEVELING
A fairly flat foundation and proper installation will provide the machine long-term high
accuracy, so supplying a good solid foundation of proper thickness is important. (Generally ,
a thickness of 300mm (12″) is considered to be enough.) The machine has six adjustable
feet on the coners of the pedestal base, used for leveling the machine. Place the pads
under the feet of pedestal. To adjust, loosen the set screw and raise or lower the foot with a
pin wrench so that all six feet rest firmly on the floor. When the adjustment is done, tighten
set screws.
Figure 1 – Lifting machine

4
C.) ELECTRICAL CONNECTIONS
The 1118H TOOLROOM LATHE is shipped completely wired and assembled, Turn Cam
Switch “A” (Figure 2) to the “OFF” position, then check motor voltage. Loosen screws “B”
(Figure 2), and open the switch case cover, connect the wires from the power source to the
terminals (R.S.T), and ground connection is made at the “G” (Figure 3) which is the electric
switch case. Pull out Spindle locking Pin “E” (Figure 4), turn “C” (Figure 5) in forward
position. The spindle should rotate counterclockwise when viewed from the tailstock end of
the machine. If the spindle dose not turn in the correct direction, turn Cam Switch “A”
(Figure 2) to “OFF” position. Disconnect electric power source, and interchanges any two
leads until the turning direction is correct. When the spindle is rotation correctly, secure
switch case cover, turn Cam Switch “A” (Figure 2) to “ON” position. Please check the
coolant direction when first time power up the machine.
※CAUTION：
：：
：RUNNING THE MACHINE IN THE WRONG DIRECTION WILL
RESULT IN DAMAGE TO THE SPINDLE SPEED CHANGE
.
.
Figure 2-Control Unit Door Figure 3-Control Unit
Figure 4-Control Speed and Direction
E
Figure 5-Speed Control Box
A
B
C
G

5
D.) LUBRICATION
Proper lubrication supplied carefully, will maintain the life and performance of the machine
for a long period. Therefore, lubricate the machine with a high quality lubricant, and check
periodically to assure that the lubricant in the oil sight gage is filled to the proper level.
1. CARRIAGE LUBRICATION
Fill with Mobil Vactra Oil No.2 or equivalent in
oil reservoir. Lift plunger on reservoir “R”
(Figure 6) hold briefly and release to keep bed
ways lubricated.
2. GEAR BOX AND CLUTCH LUBRICATION
Maintain oil level in sight windows “W”
(Figure 8). To fill gearbox, remove plug
“C”(Figure 8) use Automatic Transmission
Fluid Mobil 220 (Esso ATF or equivalent
Change oil every 500 hours.)
To drain oil, remove the Drain Plug “M”
located under the oil gear box (Figure 8).
※CAUTION：
：：
：USE OF ANY OTHER TYPE OF OIL IN THE GEARBOX MAY
RESULT IN DAMAGE TO THE CLUTCH SURFACES.
3. HEADSTOCK LUBRICATION
The headstock spindle is mounted on precision preloaded ball, bearings. The ball bearings
are grease packed for life and require no further lubrication.
Figure 6-Speed Change Unit
R
Figure 8-Gear Box Lubrication
W
C
M

6
E.) SPINDLE CONTROL LEVERS
To change spindle speeds. Push start button “I” (Figure 11). Turn cam switch “C” (Figure 11)
to the forward or reverse position and move lever “G” (Figure 10) to the start position. Turn
cam switch “Z” (Figure 11) to the right to increase speed and to the left to decrease speed.
The 1118H has a high and low speed range (Table 1), that moving lever "H" (Fig 11) the
high or low position. To change speeds move "H" to the forward or reverse position.
* Note: Please do not change function when spindle is running. The function will not be
successfully changed if disobey and may cause heavy vibration.
HI-LO RATIO SETTING FOR 1118H
SPINDLE SPEED
VR4 LOWER DIAL H/L RANGE RATIO
3 3:1
5 2.5:1
6 2:1
7.5 1.5:1
Figure 11-Speed Control Box
Table 1
Figure 9-Control Unit Door Figure 10-Control Speed and Direction
G
C
Z
I

7
F.) QUICK CHANGE GEAR BOX
The Quick Change Gear Box Unit see (Figure 12 & 14), feed or thread change knob “T”,
shifted to left is threading, shifted to right is feed only. The range of threads, their selection
and the position of the knobs for each thread are shown on the chart “C” (Figure 13). Pull
out the ball of gear change arm “A” (Figure 13). Then move arm to left or right, insert in
correct position, and change the selector knob “S” (Figure 13) to 1,2 or 3 position until
desired thread cutting is acquired see (Figure 13). The standard threads and pipe threads
are immediately available through the gear box by the use of outside change gears (five
change gear assembly), pitches of threads can be cut to 250 threads per inch.
※CAUTION：
：：
：DO NOT SHIFT GEARS KNOB “T” WHEN THE SPINDLE IS
RUNNING.
T
Figure 13-Thread ChartFigure 12-Feed of Thread Change
S
A
C
Figure 14-Feed of Thread Change
T

8
G.) AUTOMATIC THREAD LENGTH CONTROL
When threading into a blind hole or to a shoulder without a thread relief. The lead screw
half nut if engaged at the start of the threading work is completed. Left or right hand threads
are controlled by Control lever “D” (Figure 15), the lever is joined with the control bar “B”
(Figure 16). When the carriage touches the adjusting screw “S” (Figure 16) of the length
control bar, it will push the lever “D” (Figure 15) to “STOP” position, and make the lead
screw stop. For method of threading cut, please see Page 10, QUICK ACTING.
H.) SPINDLE BRAKE
Inverter unit “E” is used to perform dynamic braking. In addition, discharge resistor “C”
shortens braking time (Figure 17).
Figure 15-Control speed and Direction
Figure 17-Control Unit
C
Figure 16-Thread Length Control
D
S
B
E

9
I.) BELT ADJUSTMENT
Run spindle at approximately 1000 rpm. Move lever “G” (Figure 18) to center “STOP”
position and let the spindle coast to a stop. This is done to equalize belt tension. Loosen
lock nut “N” (Figure 19) 19mm wrench. Turn adjusting screw “P” (Figure19) 6mm socket
head wrench clockwise to tighten belts. Stop machine and check belt tension, there should
be approx. 25.4mm (1″) of play in belt.
J.) COLLET CLOSER REMOVAL
Running the machine with the collet closer and not having a collet locked in place will
damage the collet closer. Remove the collet closer when using chucks, face plates, or
spindle nose type fixtures. The collect closer should be removed often for cleaning to
prevent loading of chips between collet closer tube and inside of spindle at rear and collet
threads. Removal method is：Pull out pin”L” (Figure 20). Slide draw tube out of the spindle.
Do not turn the adjusting nut “N” (Figure 20). It is keyed to the spindle. To remove slide it off
the end of the spindle. Do not remove collet closer by removing screw “S” (Figure 20), this
screw has been adjusted at the factory for proper operation of the collet closer.
K.) COLLET CLOSER REPLACEMENT
Before replacement of the closer, clean inside of the headstock spindle and outside
diameter at rear of spindle where Adjusting Nut “N” (Figure 20) is located. Apply a film of
light oil on rear of spindle Do not force Adjusting Nut “N” (Figure 20) on spindle. If Adjusting
Nut “N” (Figure 20) fits to tight, remove and check for burrs or scratches, then replace.
Clean collet closer tube inside and out apply a film of light oil on slip surface “T” (Figure 20)
of the collet closer tube, replace collet loser and insert Link Pin “L” (Figure 20).
Figure 18-Control Speed and Direction Figure 19-Belt Adjustment
Figure 20-Collet Closer Removal
T
S
L
N
N
P
G

10
L.) COLLET CLOSER ADJUSTMENT
1. Before using collet closer, and any collet or step chuck to be used should be thoroughly
cleaned.
2. Push the lock Pin “E” (Figure 21). To engage lock pin, turn spindle by hand till lock pin
enters notch to lock.
3. Press the Closer Adjusting Finger “F” (Figure22) down to the point “P” (Figure 22).
4. Guard “G” (Figure 22) forward with the left hand, and hold the collet or stop chuck with
the right hand at the same time.
5. Place a work piece in collet or step chuck.
6. Place lever “L” (Figure 22) to the extreme left fixed position. Turn the Shell Guard “G”
(Figure 22) toward operator until the work piece is clamped by the collet.
7. Place lever “L” (Figure 22) to the right, the released position. Turn Shell Guard “G”
(Figure 22) toward operator, move the Adjusting Finger “F” (Figure 22).
8. Test collet closer’s tension on work piece. If the work piece needs additional gripping
pressure, press down on the adjusting finger “F” (Figure 22) and turn Shell Guard “G”
(Figure 22) forward and lock. (see Figure 22).
M.) CARRIAGE INDICATING RING
Dual dials with Inch and Metric Handwheel dial “W” (Figure 23) graduations are in 0.01″
0.2mm. It is built for the operator’s convenience of operation. (Figure 22) Spring loaded
indicating ring, just turn to required location by loosening lock screw “L” (Figure 23) Sliding
cover cage exposes only the dial in use.
Figure 21-Control Speed and Direction
E
Figure 23-Carriage Indicating
W
Figure 22-Collet Closer Adjustment
P
L
G
L
F

11
N.) CARRIAGE LOCK
To hold the carriage in a fixed position on the
bed use the Carriage Lock Handle “H” (Figure
24). Move the lock handle “H” (Figure 24)
clockwise toward the operator, lock the carriage
in position. Move the lock handle “H” (Figure 24)
counterclockwise away from the operator. To
unlock the carriage.
O.) CARRIAGE CLUTCHES
The carriage clutches are made of a friction
type material, designed to slip when slide or
carriage engages a feed stop. The clutches are
a spring-loaded arrangement and can not be
adjusted for more pulling power. If clutch slips
under a cut, it is a sign of improper tool grinding,
dull tool or excessive feed. The friction clutches
have sufficient power to handle all work. When
the machine contacts a feed “stop”, it is
intended for the clutch to slip, To operate
clutches as shown in (Figure 25), raise handle
“H” (Figure 25) is approx. 20degress above
horizontal, the clutch will engage, Push down
the handle “H” (Figure 25), the clutch will
release. When the carriage lead screw is
engaged for threading the carriage feed clutch
is mechanically interlocked (can not be
engaged). This is to prevent machine damage.
Adjust clutches as shown in Figure 25.
P.) CROSS SLIDE INDICATING RING
Dualdials with inch and metric handwheel dial. Each graduation of the Indicating Ring “C”
(Figure 26) is 0.02mm (0.001″) on the diameter. It is provided for operator’s convenience.
The Indicating Ring is spring loaded, so a lock screw is not needed. To use it, just turn the
Indicating Ring to required location by hand. Cross Slide operation of freed and adjustment
of clutches are identical with the operation and adjustment of carriage clutches. If 1118H
TOOLROOM LATHE needs to be used with the taper turning attachment, loosen the screw
“S” (Figure 26) with a spanner wrench.
Figure 24-Carriage Look
H
Figure 25-Carriage Clutches
H
Figure 26-Carriage Look
S
C
S

12
Q.) QUICK-ACTING TOOL POST COMPOUND SLIDE ASSEMBLY
The compound slide has a quick-acting tool post, at the start of threading cut, place the
ball-handle “H” (Figure 27) of the quick-acting tool post toward the workpiece, at the end of
the threading cut, the threading tool is instantly cleared from the work by hand operated,
handle “H”, for the return of the carriage to the next cut, the ball-handle lever actuating the
tool post slide feed screw. Operate above procedure repeatedly until the threaded work
piece is completed. Each graduation of the indicated ring “C” (Figure 27) is 0.02mm (0.001″)
on diameter.
※CAUTION：
：：
：THE BALL-HANDLE LEVER OF THE QUICK-ACTING TOOL
POST MUST BE MOVED TOWARD OPERATOR AT THE
END OF THE THREADING CUT.
Figure 27-Cross Slide Indicated Ring and
Quick Acting
H
C

13
R.) POWER FEED UNIT
The carriage Power Feed unit is mounted on the carriage.
It is powered by a AC motor “M” (Figure 28).
1. The power feed can be operated only when the machine is running. Start the power feed
by turning Cam Switch “S” (Figure 29).
2. The Cam Switch “S” (Figure 29) controls the direction of the power feed.
3. The carriage Feed Control “N” (Figure 29) controls the rate of feed. When Cam Switch
“S” (Figure 29) is placed in “RIGHT” position, the carriage will feed toward the right, the
cross slide will feed away from the operator.
4. When Cam Switch “S” (Figure 29) is placed in “LEFT” position, the carriage will feed
toward the left, the cross slide will feed toward operator.
5. Turn Cam Switch “S” (Figure 29) to “STOP” position, power feed motor is turned off.
6. The rate of the carriage feed should be pre-selected to suit each particular job, which
depend on material, diameter, type of cut, and tooling used.
7. The numbers on the carriage feed control panel, do not represent either thousandths
per revolution or inches per minute. So the operator must test sample pieces for
determining the spindle speed and rate of feed which can best suit to the requested
surface finish and production rate, then record the proper settings after testing.
NOTE：
：：
：WHEN STARTING INTO PRODUCTION. AN OPERATOR CAN SET THE FEED
CONTROL “N” TO THE RECORDED REFERENCE SETTING, THEN THE
SAME TESTED RESULTS WILL BE OBTAINED.
Figure 28-AC Motor Figure 29-Power Feed Unit
S
N
M

14
S.) COOLANT FACILITIES
The coolant pump is controlled by Switch “C”
(Figure 30). Turn Switch “C” (Figure 30) to “ON”
position, the pump will run continuously, turn to
“AUTO” position, the pump will run only when the
machine is running. If pump switch is set at “OFF”
position, the coolant pump is off. Sump should be
cleaned periodically, depending on the type of
material being machined.
T.) TAILSTOCK
The tailstock is mounted on preloaded ball bearings and can support any load to the
spindle. It is provided with a fine “feed” for accurate work. The spindle of the tailstock is
graduated in eighths of an inch, and 1mm and has a travel of (3-3/4″) 395mm
The handwheel is dual dial Inch and Metric. Graduations are 0.02mm (0.001″).
It is built for the operator’s convenience of operation just turn the dial ring “D” (Figure 32)
to the required location. It is unnecessary to tighten the dial rings. They are spring loaded,
so a lock screw is not needed. Sliding cover cage exposes only the dial in use.
U.) TAILSTOCK SPINDLE LOCK
The tailstock spindle lock holds the spindle
securely in any travel position. Move lever “L”
(Figure 33) toward the headstock lock
position and backward to the released
position.
V.) TAILSTOCK BODY LOCK
The tailstock can be clamped in any position
along the bed way by operating Lever ”M”
(Figure 33). The Lever “M” (Figure 33) should
be adjusted to a clamp position between the
two stop pins “A” (Figure 33) and “B” (Figure
33). When tailstock is fully clamped, lever
“M” (Figure 33) should not contact stop pin
“A” (Figure 33).
Figure 30-Control Unit Door
Figure 31-Tailstock Spindle Travel Figure 32-Handwheel Dial Ring
Figure 33-Tailstock Spindle and Body Lock
C
D
L
M
B
A

15
THREAD CUTTING
CAUTION：
：：
：DO NOT RUN SPINDLE IN REVERSE WHEN THREADING.
The SHARP 1118H is designed for rapid and accurate thread cutting. The quick-change
gearbox permits instant selection of 36 different inch and metric threads.
Threads can be cut to a shoulder without running into the shoulder since the automatic stop
will limit carriage travel at a predetermined point in either direction. Before staring to cut a
thread, select the proper cutting speed for the size of thread to be cut and to give the best
finish for the particular material being used. Maximum recommended threading speed is
800R.P.M.
Set the quick-change gearbox for desired pitch. To make a selection on the gearbox
thread chart, pull the spring-pressured knob “A” (Figure 34), out as far as it will go and lower
it until it will move sideways to the desired notch directly under the thread required. Raise
the handle and let plunger drop into hole. If tumbler handle will not raise far enough to
position plunger into hole, loosen knob “S” (Figure 35), open gear box door and rotate gear
“T” (Figure 35), until gears mesh and handle raises, permitting plunger to seat.
DO NOT SHIFT GEARS OR OPEN GEARBOX DOOR WHILE MACHINE
IS RUNNING.
Set selector knob “C” (Figure 34), for number corresponding to left side of gearbox
thread chart. Set knob “C” (Figure 34) so desired number is in bottom position in line with
arrow. If the sliding gear cluster dose not engage the other gears in gearbox properly to
bring the desired number on selector knob “C” (Figure 34) in line with arrow, loosen knob
“B” (Figure 34) open gearbox door and rotate gear “T” (Figure 35), until gear mesh.
Figure 34-Headstock and Gearbox
T
A
B
C
Figure 35-Thread Gearbox
S

16
Set Inch/Metric knob “D” (Figure 36), so thread system to be cut reads at top of knob, If
the sliding gear does not engage properly to bring desired system to read at top, loosen
knob “B” (Figure 36), OPEN GEARBOX DOOR AND ROATE GEAR “T” (Figure 37), until
gears mesh and knob is felt to engage detent.
Engage gearbox by turning knob “E” (Figure 36), counterclockwise in the direction of
arrow marked “THREAD” When turning knob “E” (Figure 36) ＜THE TEETH OF THE
SLIDING GEAR WITHIN THE GEARBOX.＞May not mesh with the headstock spindle
gear teeth. If this is the case, turn headstock spindle with handwheel “F” (Figure 36) while
turning knob “E” (Figure 36) to left until definite click is heard.
Set compound slide at 61 and position cutting tool in compound slide tool post.∘
Position carriage with handwheel so threading tool is in the center of the part to be
threaded.
Carriage control lever “G” (Figure 36), when moved to the left, will cause carriage to
move to the left. When the carriage control level is moved to the right, the carriage will
move to the right. Carriage travel can be stopped at any time by placing control lever “G”
(Figure 36) in center position.
NOTE：
：：
：Carriage power feed unit is not used during threading operation.
F
Figure 36-Headstock and Gearbox Figure 37-Thread Gearbox
T
G
A
B
E

17
Place lever “G” (Figure 38) in center position and engage lead screw nut “J” (Figure 40),
by moving ball handled lever “H” (Figure 40) clockwise. Set two carriage stops “M” (Figure
39) approximately 1/2″from both ends of carriage. Loosen screw “K” (Figure 39) to make
area location of stops. Loosen lock screw ”N” (Figure 39) and turn stop screw “L” (Figure 39)
to make fine adjustment. With threading tool away from work toward operator, make a trial
run with the carriage. Pick up the exact relation between the tool and the shoulder or end of
the thread by using the tool post slide. Run carriage to the right, checking the stop. Make
adjustments so tool will clear end of work by 1/4″.
※CAUTION：
：：
：LOCK CARRIAGE STOPS SECURELY BEFORE STARTING
TO CUT THE THREADS. DO NOT RELEASE CARRIAGE
NUT “J” UNTIL THREADING OPERATION IS COMPLETED.
Figure 40-Thread Length Control
Figure 38-Headstock and Gearbox Figure 39-Thread Length Control
N
K
M
L
G
H
J

18
With carriage at rest and quick-acting handle “P” (Figure 42), forward in cutting position,
feed the desired amount for each threading pass using cross slide handwheel “R” (Figure
42).
Moe lever “G” (Figure 41), to the left and carriage will travel until it contacts stop at
headstock end of machine. The headstock spindle will continue to run. Carriage stops
cause only the gearbox, lead screw and carriage to stop.
After each pass, withdraw threading tool from work with quick-acting handle “P” (Figure
42), and return carriage to starting position by moving carriage control lever “G” (Figure 41),
to the right.
LEFT-HAND THREADS can be cut the same as right-hand with the spindle running
“FORWARD” except that cutting pass is made from the headstock toward the tailstock.
Carriage control stops are used for left-hand threads as well as right-hand threads.
Figure 41-Headstock and Gearbox Figure 42-Carriage and Compound Slide
A
G
R
P