Sharp UH-3 Operations Manual & Parts List
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Sharp UH-3 Operations Manual & Parts List

Horizontal milling machine
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OPERATIONS MANUAL / PARTS LIST UH-3 MILL

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  • Page 1 OPERATIONS MANUAL / PARTS LIST UH-3 MILL...

  • Page 6: Specifications

    Specifications Table Working surface length x width 51-3/16 x 11-13/16 in. Travel longitudinal x cross x vertical 37-3/8 x 13 x 1/2 in. T-slot nominal size x No. x pitch 5/8 in. x 13 x 2-3/4 in. Longitudinal x cross 50Hz 7/16-20-3/8 ipm.
  • Page 9 Chung Sing 3-2 VERSION: 2...

  • Page 10: Installation And Preparation

    2. Installation and preparation 2-1 Transportation of the machine Make certain the load is on balance and that the sling does not touch the table or head before lifting. If a crane is used in lifting, exercise care that none of the mechanism is damaged. When lifting the machine, insert two round bars of about 35mm in diameter and use a wire suspension rope, be certain that they are strong enough to safety carry the weight of the machine.

  • Page 11: Inspection And Cleaning

    2-2 Inspection and cleaning After you received the machine, please check if the packing contents all the accessories you ordered. Then wipe off dirt and protective coating. 2-3 Storage and Installation The surrounding condition of storage is that Temperature range: -25°C to +75°C Relative humidity range: 30% to 95% (non-condensing) Damage from shock and vibration should be avoided Ingress of solid bodies and liquid should be avoided...

  • Page 12: Cutting Oil

    2-5 Cutting oil There are two general types of cutting oil, i.e., water-soluble cutting oil and water insoluble cutting oil and these are further divided into many groups. As selection of the cutting oil depends on each cutting condition particular trade names or groups cannot be specified here but it is necessary to observe the following;...
  • Page 13 Chung Sing 7 VERSION: 3...
  • Page 14 Chung Sing 8 VERSION: 2...
  • Page 15 Chung Sing 9 VERSION: 2...
  • Page 17 3-2 Electric operation panel (Fig. 6) 1. Horizontal spindle start button 2. Horizontal spindle stop button 3. Table feed motor start button 4. Table feed motor stop button 5. Emergency stop button 6. Cutting oil pump switch Fig. 6 3-3 Start and stop for horizontal spindle Push the horizontal spindle start button (1) (Fig.
  • Page 18 3-6 Change of horizontal spindle speed Move lever (1)(Fig.7) to position  .  or  depending upon the spindle speed range required,and move lever (2)(Fig.7) to the position of the particular speed reuqired.Speed changes must not be made while the main motor is running. To facilitate changing spindle speed,stop main motor by depressing horizontal spindle stop button (2)(Fig.6).
  • Page 19 3-7-2 Operation of cross power feed Start feed motor by turning button (3) (Fig. 6) and then lever (5) (Fig.5) upwards for the saddle to feed towards the column, and for the saddle to feed away from the column move lever (5) (Fig.5) downwards.
  • Page 20 3-7-7 Backlash eliminator The use of the backlash eliminator device allows “climb milling” to be carried out on this machine. The backlash eliminator controller (8) (Fig. 5) is situated on the front of the saddle. When climb milling is to take place with the cutter revolving clockwise and the table moving from right to left, the backlash eliminator control should be rotated counter –...

  • Page 22: Safety Device

    Fig.10 4. Safety device 4-1 Thermal relay When electric current exceeding the rating, the thermal relay (2) (Fig. 11) is actuated automatically to stop the driving motor. If the thermal relay is actuated, located and correct the cause and reset the thermal relay by pressing the thermal relay reset push button.
  • Page 23 5. Symbols The various movements and corresponding symbols used on this machine are indicated in Table 4. Chung Sing 17 VERSION: 2...

  • Page 24: Carbide Cutters

    6. Suggested starting speed and feeds 6-1 Carbide cutters Table – 5 CARBIDE CUTTERS FULL & FACE SLAB FORM MATERUAL HALF SIDE SAWS MILLS MILLS MILLS MILLS MILLS MALLEABLE FEED PER TOOTH .005-.015 .005-.015 .005-.010 .005-.010 .003-.004 .005-.010 SOFT/HARD FEET PER MIN. 200-300 200-300 200-350...
  • Page 25 6-2 High speed steels cutters Suggested starting speed and feeds Table – 6 HIGH SPEED STEELS CUTTERS FULL & FACE SLAB FORM MATERUAL HALF SIDE SAWS MILLS MILLS MILLS MILLS MILLS MALLEABLE FEED PER TOOTH .005-.015 .005-.015 .003-.010 .006-.012 .003-.006 .005-.010 SOFT/HARD FEET PER MIN.

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