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Sharp Precision Machine Tools SERVICE AND PARTS MANUAL Vertical Mill...
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SHARP's all new design of 3 HP vari-speed head, just lubricate the van-disc every three months, keep the head running smoothly.
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WIRING 440V TO 220V COOLING FANS Warning: Disconnect power source before starting installation. Caution: Follow wiring instruction carefully. For trouble shooting, use a meter to check the current. Do not use the 440V current to check the fan individually. This method of connecting the fans in series to run on 440V current is only applicable to the Twin Fan Model.
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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. Make proper connection according to the following diagram.
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.
(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 Headstock matching Quill Holes SHELL TONNA 68 Twice Daily Full...
(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.
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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)
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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.
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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.
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.
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Replacement of speed change belt(R) (Figure 10): Please refer to Step a to e on motor dismantling on P.15. Pull out drawbar (1). Take off three concave hexagonal bolts (1) and use two of them to push up the bearing cover (K).
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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.
(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.
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4. SPINDLE BRAKE a. When arrow marks in (D) position, spindle motor power is on. b. When arrow marks in (C) position, spindle motor power off through the engagement of micro switch. c. When arrow marks in (B) position, make spindle braked. The lever is cam operated and will never return back until you push it.
(b) Headstock Lubrication: 1. TMV-185VS Headstock Item Lubricants Qty. Time Position Head Stock Matching SHELL TONNA 68 Full Twice Daily Quill Holes SHELL TONNA 68 Full Twice Daily Bull Gear Bearing Sleeve Counter Shaft Gear SHELL TONNA 68 Full Twice Daily Worm Gear Cradle...
(c) Operations: Reversing Switch: Motor turning is controlled by the reversing switch (Vide the Figure in the right). When the high-low speed change lever (Vide P21, 22) is placed at the high gear position and the switch is on FOR, the motor turns clockwise.
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Cross Tilting Loosen evenly the four lock nuts (R) and turn the worm shaft (S) until the desired angle is secured. Then lock up the lock nuts (R) evenly. Note: 1. Do not loosen the lock nuts (R) totally during the adjustment.
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Manual Feed (2) Manual Micromotion Feed: To effectuate the manual micromotion feed, the 1) The manual feed lever is installed on the- power-feed transmission engagement crank (J) right side of headstock (Figure 13, H). The (Fig.13) shall be placed at "OUT" position, and spindle will travel vertically when the lever is feed reverse knob (D) at the neutral position.
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5 Automatic Feed: For automatic feeding, please take the following steps (Vide P.21 P22): Loosen the quill lock (L). Turn the power feed transmission engagement crank (j) from "OUT" to "IN" position. 'Make certain to engage the worm gear cradle with the spindle gear hub so that the driving will be directed from the spindle worm and worm gear before it is passed to the speed change gears.
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Spindle speed change (a) TMV-185VS 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. (1) Change of High and Low Speeds: The speed change may be effectuated by the chosen high and low speed lever (figure 15 (J)). When (J) is engaged in the right front, it is for the high speed and the spindle may rotate as high as 500 to 3,000RPM.
(d) Trouble Shootings: (A) TMV-185VS Head Stock (1) Dismantling of TMV-185VS Motor (as shown in Figure 17): Start the motor and turn the speed change handvvheel (A) to the position of 60RPM appeared on the indicator to lower down the stationary motor van-disc to the lowest position. Cut off the motor power source and take off wire pressboard and reversing switch.
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(2) Replacement of Speed Change Belt (as shown in Figure 18): Refer to Step a to e of motor dismantling on P. 31. Take off draw bar (I). Dismantle the three hexagonal concave bolts (j) and use two of them (j) to life the bearing housing (K).
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(3) Replacement of Brake Block (Figure 19): a. Refer to Step a to f on P.31 on motor dismantling. Refer to step b to g on P.33 on replacement of speed change belt to dismantle the upper belt housing. As shown in Figure 20, take off the connected gear housing (R) and the four hexagonal concave bolts (V) bottom belt housing (T1).
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(4) Replacement of Timing Belt: a. Refer to Step a to e of motor dismantling on P.24. b. Refer to Step b to g speed change belt replacement on P.26 to take off the upper belt housing. c. Refer to Step c to d on P.28 replacement of brake block for the dismantling of bottom belt housing and change the timing belt as shown in Figure 28.
(B) Machine lubrication Lubrication of work table, saddle, knee, sliding surface and leadscrews may be Position effectuated by means of the hand crank pump on the left side of knee. Method 3 to 5 times daily by pulling twice each time. Lubricant SHELL TONNA 68...
(C) Operations: (a) Ram Movement and Swiveling: Movement: Loosen the two Ram lock levers (A). Swivel the Ram pinion handle (B), and the Ram can be moved. When it moves to the desired position, lock up (A). Ram Swiveling: Loosen the four locking bolts (C), and force the cross arm to turn until the desired angle is obtained.
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(b) Zero Positioning (as shown in Figure 23) of Dial Ring of Table Feed. 1. Loosen the nut (D) of dial ring. 2. Turn the dial right (E) to zero position. 3. Lock the nut (D) of dial ring. (c) Setting of Sliding Surfaces of Work Table, Saddle and Knee: All non-feed sliding Surfaces shall be secured and set to prevent slipping and increase machine body's rigidity.
(D) Adjustment: (a) Adjustment of Backlash of Leadscrew: After a certain period of time, a clearance is developed between the leadscrew and its nut due to frictions. Positioning accuracy will become impossible. Therefore, the nut must be adjusted so as to keep a proper tension between itself and the leadscrew. 1.
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2. Adjustment of Backlash of Longitudinal Leadscrew: Move the work table to the center of saddle. Insert the large end of backlash adjustment tool into the left side of saddle. Turn the locking nut (J) counterclockwise one round. Reverse the end of adjustment tool and insert the small end into same position and turn the leadscrew adjusting nut (K) clockwise.
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3. Adjustment of Work Table Gib (Figure 27): Work table gib (C) is attached between saddle and work table dovetail. Loosen the setting lever (A) (Vide Figure 27). Clean the slideway and add the lubricant Use a screwdriver to adjust the big bolts (B) on left and right sides of the saddle. Method of Adjustment.
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4. Adjustment of Saddle Gib (Figure 28): Saddle gib is attached to the position between the left side of saddle and the knee. Loosen the saddle lock lever (A) (Vide Figure 28). Move the saddle to the front part of the knee. Take off the front and rear wiper holders (B) of saddles.
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5. Adjustment of Knee Glb on Machine Body (Vide Figure 29): Knee gib is attached to the position between the side of knee and the column slideway. a. Loosen the lock bolt (A) by using hexagonal spanner. b. Take off the wiper holder (B). Clean the slideway and add the lubricant.
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6. Adjustment of Ram Gib (Vide Figure 30): Ram gib is attached to the position between the ram and the turret dovetail. Tightness of ram can be adjusted properly by gib bolts. a. Loosen the ram lock bolts (A). b. Clean the slideway and add the lubricant c.
6. Maintenance: "Maintenance is more important than repair, shall be moved to the proper position. and repair is better than purchase". Then cutter must be dismantled. (6) At the close of each day, the headstock Under long-term operations, if the machine has must be restored to its normal position if not been properly maintained and operated, its it is tilted.
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TROUBLE CAUSE CORRECTION SPINDLE POWER FEED The two M4 set screws on disengage lever DISENGAGEMENT NOT Tighten set screws loosed WORK WELL 1. Power feed rates selecting knob set on Rotate this knob to one of HAND MICRO-FEED NOT one of the three feed the two "DUMMY"...
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1. Peripheral relief too great. 1. Use recommended angle. CUTTING "HOGSIN" 2. Rake, angle too large 2. Decrease rake angle. 3. Improper speed 3. Check and adjust. 1. Use recommended clearance angle 1. Insufficient clearance rubbing VIBRATION 2. Check machine, be sure 2.
7. Cutting Condition Chart FEED- (in mm) PER TOOTH FOR HIGH SPEED STEEL AND HARD METAL CUTTERS, MILLING IN CONVENTIONAL FEED DIRECTION FORM TIPPED CUTTER HEADS PLAIN FACE ULTIMATE SLOTTING RELIEVED SLITTING WORKPIECE HARDNESS MILLING MILLING END MILLS HIGH SPEEED HARD STRENGTH CUTTERS...
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CUTTING SPEEDS (IN m/min.) OF HIGH SPEED STEEL AND METAL CUTTERS, MILLING IN CONVENTIONAL FEED DIRECTION FORM TIPPED CUTTER HEADS PLAIN FACE ULTIMATE SLOTTING RELIEVED SLITTING WORKPIECE HARDNESS MILLING MILLING END MILLS HIGH SPEEED HARD STRENGTH CUTTERS PROFILE SAWS CUTTERS CUTTERS STEEL METAL...
8. Cautions (1) Machine Operations: (2) Machine operator: Check and ensure if the machine bottom The machine is to be started or operated and ground base are properly contacted by an authorized operator only. before the anchor bolts are locked up. Immediate stop and repair are needed in The machine must be installed upon a case of troubles in operations.
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DVS HEAD PARTS 2 PART NUMBER DESCRIPTION QUANTITY H-149 DRAW BAR WASHER H-250 SOCKET SET SCREW 1/2” x 5/16” H-290 BEARING LOCK NUT H-291 LOCK WASHER H-505 BELT HOUSING (UPPER) H-515 TOP BEARING CAP H-516 WAVE WASHER H-517 BALL BEARING 6007ZZ H-522 BALL BEARING...