Sharp TMV Series Building instructions

Sharp Precision Machine Tools
SERVICE AND PARTS
MANUAL
Vertical Mill
TMV

SHARP's all new design of 3 HP vari-speed head, just lubricate the
van-disc every three months, keep the head running smoothly.

WIRING 440V TO 220V COOLING FANS
1. Warning: Disconnect power source before starting installation.
2. Caution: Follow wiring instruction carefully.
3. For trouble shooting, use a meter to check the current. Do not
use the 440V current to check the fan individually.
4. This method of connecting the fans in series to run on
440V current is only applicable to the Twin Fan Model.
Do not use it on the Single Fan Model.

SHARP INDUSTRIES INC.
Wiring for DUAL Voltage Motors
WARNING: Disconnect all power sources before you start to do wiring changes or
checking wiring.
1) Most spindle motors are convertible between 220V & 440V. To change
wiring, please follow the instructions below:
2) After power source has been disconnected, remove the cove, the motor,
and make sure that a diagram as shown below is available; if not, please
consult a qualified electrician from Sharp Industries Inc.
3) Make proper connection according to the following diagram.
4) Be sure that all connections have been done properly and check isolation
carefully, then remount the cover.

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CONTENTS
1. Forward ..............................................................................................................2
2. Safety Rules and Regulations.............................................................................2
3. Capacity..............................................................................................................2
4. Headstock........................................................................................................... 3
(A)195VS......................................................................................................... 3
(a) Name of Machine Parts ............................................................3
(b) Headstock Lubrication.............................................................. 5
(c) Operations ................................................................................6
(d) Trouble Shootings...................................................................10
(B) 195TM.....................................................................................................15
(a) Name of machine Parts ..........................................................15
(b) Operations ..............................................................................16
(C) 185TM / 185VS .......................................................................................18
(a) Name of Machine Parts ..........................................................18
(b) Headstock Lubrication............................................................20
(c) Operations ..............................................................................21
(d) Trouble Shootings...................................................................26
5. Machine Body ..................................................................................................32
(a) Name of Machine Parts ..........................................................32
(b) Machine Lubrication...............................................................35
(c) Operations ..............................................................................36
(d) Adjustment .............................................................................38
6. Maintenance ....................................................................................................44
7. Chart of Feed and Cutting Speed .....................................................................47
8. Cautions ...........................................................................................................50
9. Remarks............................................................................................................51

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1. Forward:
LONG CHANG TMV-185 AND TMV-195 OF MILLING MACHINES are designed and manufactured
to meet the demands by most of our customers. All parts and materials have been placed under
strict quality control to ensure the machine quality superiority and permanent service life.
This manual shall give a detailed account of the structure, mechanism, methods of operation,
maintenance, etc. of TMV -185 and TMV -195 Miller. For permanent hi-precision and maximum
efficiency of each and every machine, the operators, maintenance and repair personnel are
requested to study this manual thoroughly and follow the specific instructions in operations
and maintenance exactly.
2. Safety Rules and Regulations:
1) Wearing of loose clothes by operators is not allowed.
2) Operators shall wear the goggles and safety boots.
3) Do not allow the body to get too close to the machine while it is in revolution.
4) Cautions must be exercised in machine handling in reference to the specific details in
this manual.
3. Capacity:
These models feature the multi-performances as follows:
(1) Drilling: Front and oblique, drillings.
(2) Boring: Front and oblique borings by cutters installed.
(3) Molding: Processing of irregular curves and mold removing angles.
(4) Polishing: Surface polish on metallic parts.
(5) Milling: Face, oblique, end, side millings, etc.

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4. Headstock
(A) Stepless Speed Headstock (195VS)
(a) Names of machine parts:

4
Emergency Stop
Forward/Reverse Switch
Brake
Speed Meter
Speed Knob

5
(b) Headstock lubrication:
Adopted with dripping lubricant in the headstock, it is to reassure driving
mechanism and smooth sliding. Please refer to the chart as hereunder
specified.
Item
Position
Lubricant
Time(s) Q’th
1
Headstock matching Quill Holes
SHELL TONNA 68
Twice Daily Full

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(c) Operations:
1. Spindle brake: brake lever (E)
When arrow marks in (D) position,
spindle motor power is on. When arrow
marks in (C) position, spindle motor
power off through the engagement of
micro switch. When arrow marks in (B)
position, make spindle brake.
The lever is cam operated and will never
return back until you push it. The spindle
will be powered again as you push it to
position (D). All are controlled electric-
magnetically. This provides you a great
convenience for immediate stop of
spindle and shifting back gears.
ADJUSTMENT (Fig.3) (A)
After long period usage, the brake shoe
might be loosed and some adjustment is
required. Use a flat head driver to adjust
the bolt inside the hole at left-front
position of pulley cage. Clockwise will
tight the brake. Counter-clockwise will
loosen it.
2. Chucking of tooling shank and dismantling:
First the spindle must be raised up to its
maximum height. The screw of draw bar
is right turn. When the screw is turned
clockwise, it is for locking of tooling
shank; the draw bar must be turned
from three to five rounds. Then, use a
soft mallet to hit lightly on the draw bar
to allow the tooling shank to separate
from the spindle. Turn the draw bar until
the tooling shank comes off totally.
Note: According to Spindle Braking,
brake the spindle to a stop and the
tooling shank may easily come off or
chuck on.

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3. Quill feed:
a. Manual feed:
Turn the feed rate selector to any of the two "DUMMY" positions.
Engage feed trip lever from (B) to (B')
The quill is now under hand wheel (G) control
b. Automatic feed:
Ensure quill lock is off (C)
Set micrometer dial to required depth, (D)
Engage Feed Clutch Selector (E)
Select feed rate, (A)
Engage feed trip lever (B) to (B')
The feed will automatically trip out at a depth within 0.2 mm.
Note: 1. To interrupt power feed, just press down the disengagement lever (F).

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Note: 2. Maximum drilling capacity in automatic feed is 3/4" (19mm).
3. The power feed transmission engagement crank shall be placed at "OUT"
position when the automatic feed is not in operation. DO NOT move the power
feed transmission engagement crank when the spindle is in revolution.
4. Do not use automatic feed when the turning speed is in excess of 3,000 RPM
5, Do not change the feed speed optionally by means of quill speed selector during
the revolution.
6. Lock up the quill lock of quill for far better milling surface when the unit is not
making the manual or automatic feed.
4. Speed change of spindle:
By means of the variation of one set of sliding belt Pulley and counter shaft gear (high or low
speed), the spindle revolution speed is changed accordingly.
a. Change of high and low speeds: (Fig.4)
Break the spindle
Push and Turn lever (H) in either direction to the next horizontal position. You can feel
the "SNAP IN" correct position through the ball-spring mechanism if difficulty
happened in meshing gears, inching the spindle through brake lever.
Notes:
a) The spindle must be motionless completely during the speed change.
b) To shift the high speed into the low one, the spindle must be slightly turned to
make it easier for the counter shaft to engage.
c) To shift the low speed into the high one, use the brake lever so as to put a stop to
the spindle clutch. Then turn the spindle slightly so that the clutch may be
engaged feasibly. A "click" sound of engagement may be sensed at this moment.
b. Speed change hand wheel:
Stepless speed variation between high and low speeds may be controlled by means of the
turning hand wheel (A) (Figure 5). When it is turned clockwise, it is for higher speed.
Note:
a: Do not change the speed when the spindle stands still.
b: Avoid to use it when the speed is in excess of 3,000 RPM.
c: In the process of speed change from high speed to low speed, and vice-versa, do not
change the speed rapidly to safeguard the service life of the internal mechanism.
d: It takes roughly 10 to 15 second to change from low speed to the high one.

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5 Tilting of headstock
Cross tilting (Figure 6)
a. Draw out 2 zero position securing taper pins.
b. Loosen 4 lock nuts (A)
c. Turn the worm shaft (B) so as to tilt the headstock to the desired position.
d. Lock up 4 lock nuts (A) evenly.

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6 Headstock Tilting:
In-and-Out Tilting (Figure 8):
Turn loose evenly the eight adapter
locking bolt (P Both sides) and turn
the vertical adjusting worm shaft (Q)
until the angle desired is obtained.
Lock up the bolts (P Both sides)
tightly.
Note: Do not loosen all the headstock
bolts totally.
(d) Trouble Shootings:
1. Dismantling of Motor (Figure 9):
a. Start the motor and turn the speed
change handwheel (A) to the
position of 60RPM appeared on the
indicator to lower down the
stationary motor vari-disc to the
lowest position.
b. Cut off the motor power source and
take off main power source.
c. Remove motor pulley cover (B)
under the motor shaft. Then, use
the two hexagonal concave bolts (C)
that locked the bearing housing to
, insert into the two holes of the
speed change spring piece (D). Lock into
the motor varj-disc (E) and evenly lock up
the two bolts (C). Push down the speed
change spring (F) so as to separate it from
the retainer ring (G).
d. Take out the retainer ring (G).
e. Take off the two hexagonal bolts (H) that
locked the motor. The motor may be lifted
up. Motor vari-disc (E) and speed change
belt are still kept inside the belt housing_
still kept inside the belt housing_
f. Once the motor is replaced, just reverse
the order of dismantling.

11

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2. Replacement of speed change belt(R) (Figure 10):
a. Please refer to Step a to e on motor dismantling
on P.15.
b. Pull out drawbar (1).
c. Take off three concave hexagonal bolts (1) and
use two of them to push up the bearing cover
(K).
d. Take down the two concave hexagonal bolts (L)
setting the pressboards from the top and take
out the bolt housing (M).
e. Take off the six concave hexagonal bolts (N).
f. Use a soft mallet to hit the belt housing (Q)
lightly upward so as to disengage it from the
gear housing (P).
g. Reverse the order of dismantling to restore the
assembly once the speed change belt is replaced.
Note: Replacing speed change belt shall conform to that of our
company specifications.

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14
3 Replacement of brake block (Figure 11, 12):
a. Refer to Step a to e on P.14 on motor dismantling.
b. Refer to Step b to g on P.13 on replacement of speed change belt to dismantle the upper belt
housing.
c. Remove the spindle pulley off.
d. Use flat head screw driver to kick-off the two half piece of brake shoe (A).
e. Remove the two springs (B).
f. Press the assembled brake shoe to rear support pin (C) first, then to the front cam (D).
g. For new brake shoe, some adjustment is required.

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(B) Headstock (195TM)
(a) Names of machine parts:

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(b) Operation:
1. FINE HAND FEED
a. Turn the feed rate selector to any of the two "DUMMY" positions.
b. Engage feed trip lever from (B) to (B')
c. The quill is now under handwheel (G) control
2. POWER FEED
a. Ensure quill lock is off (C)
b. Set micrometer dial to required depth, (D)
c. Engage Feed Clutch Selector (E)
d. Select feed rate, (A)
e. Engage feed trip lever (B)
f. The feed will automatically trip out at a depth within 0.2mm
HOTE: TO INTERRUPT POWER FEED, JUST PRESS DOWN THE DISENGAGEMENT LEVER (F)
DUMMY POSITION