SURFACE GRINDER MODEL: G3104 / G3155 OPERATOR MANUAL PLEASE READ THIS MANUAL CAREFULLY BEFORE OPERATION the serial number of your machine in 1t is essential to give assure prompt and accurate service any order of repair parts © GRIZZLY INDUSTRIAL, INC.
Pheasant you for purchasing the G3104/G3155 surface grinder. This mach me can provide you with years of accurate service if properly cared for and operated. Please read this manual carefully before using your machine. Warning: Failure to follow these warnings will result in serious personal injury: Read and understand manual before starting machine. Always wear eye protection. Plug power cord into grounded outlet only. Never place hands directly under cutter. Keep all guards in place at all times.
CLEANING: 1. Your machine has been coated with a heavy grease to protect it during shipment. This coating should be completely removed before operating the machine. Commercial greaser, kerosene or similar solvent may be used to remove the grease from the machine, but avoid getting solvent on belts or other rubber parts. 2. After cleaning, coat all bright work with a light lubrication, Lubricate ali points with medium consistency machine oil. Main Specification: Model G3104 G3155 Max.
Lubrication Instruction Chart Saddle Column guide ways | Lubrication Table a guide ways an points guide ways and Lead screw Lead screw interval Automatically Twice daily Twice daily Pull one shot instruction Lubrication pump | Twice daily § times MOBIL Vacuole oil 1409 SHELL Tonia Energizer HP 20-¢ WHEEL 1. Wheel Fitting hatcheck the wheel surface carefully and tap it with a wood hammer, to ensure a clear sound. A crack inside of the wheel results in a son ant sound. Be sure to check for cracks carefully.
1207/7110 Giz SB1: Power Source "off" button §B2: Grinding wheel *on® switch Sal-switch of coolant system Mi: Spindle motor 1.
2.1 2.2 Wheel guard is in its right position. Turn the wheel without loading for a few minutes. 3. Wheel Balancing 3.1 3.1.3 3.14 31.5 3.186 318 How to balance the wheel: Efficient balancing is essential to eliminate unnecessary and additional stress in the wheel. It is also unavoidable to obtain high quality results. Grinding accuracy and surface finish as well as life of grinding wheel, wheel spindle and bearings depend on some considerable extent on careful balancing.
3.3.2 3.33 3.3.4 34.1 If the spindle still vibrates please, take down motor and spindle and check the rubber and coupling, if rubber is broken, change new one. If the couplings loosen, set them well The spindle can be used more than 10 years under normal operation. Please don't disassemble it without our advise. Because of the spindle running at a very high-speed the wheel must be balanced. Otherwise it will cause spindle vibration, owing to its wear. It is advisable to re balance the wheels occasionally.
diamond feed only about 0.01mm. Experience has shown that, with highly accurate grinding, or better surface finish dressing with the diamond dresser which mounted on the magnetic chuck is better than that which is on the spindle housing (the former is more stable than fatter. The latter condition will cause light undulation in the surface of the wheel. 3.42 Sufficient coolant to contact point of wheel and the diamond is necessary. 3.4.
DRESSING Kinds of abrasive: A. For common steel grinding WA: For higher hardness materials grinding, such as heat-treated carbon steel, alloy steel efe. H: Suitable for higher hardness material particularly high-speed steel. C:_ For cast iron and non-ferrous grinding.
2.2 Grain size: Coarse: 10,12, 14,186, 20, 24 Medium: Fine: 70, 80, 100, 120, 150, 180 Grain Grinding ~ Size Coarse Fine condition SC Stock removal much Little Surface roughness coarse Sine Work piece hardness soft Hard Surface contacted wide Narrow Diameter of the wheel big small 2.
Structure ring Wide Close Condition Te Surface roughness coarse Fine Surface contacted wide Narrow Work piece hardness soft hard 3. Wheel be recommended Wheel Diameter Material be ground Under 205 mm Carbon Under HRC 25 WA 46K or A 46K Steel Above HRC 25 WA46J Alloy Under HRC 55 WA 48.) Steel Above HRC 85 WA 461 Tao Under HRC 80 WA 48] Steel Above HRC 60 WA 46H Stainless Steel WA 46) Cast Iron C484 Brass C30) Aluminum Alloy C304 Tungsten Carbide GC 60-100H,1 Glass C 80K Marble C 36M or GC 368M 4.
Cross Feed Great Small Grinding resistance great small Heat produced less much Surface finish rough fine Wheel worn-out much little Rough grinding: or under 1/2 of the wheel width. Fine grinding: under Skimming. or under 1/4 of the wheel width. 4.
V: Vitrified S: Silicate B: Resinous R: Rubber £: Shellac COOLING THE WORK PIECE DURING GRINDING Advantages of wet grinding, foremost of the work piece. Neo Reduce the possibility of distortion of the work piece caused by heating. Reduce the danger of burning. Prevent wheel from clogging. Shorter grinding times. Longer the wheel life. Protect the operator, machine and circumstances from grinding dust.
finish can not be obtained. 1 2 OE NED 11. Wheel is too hard, or wheel is not correctly chosen. Work piece is not fixed well. if it is dirty between the spindle taper and flange{adaptor) bore, it makes the wheel vibrate. If you use an unqualified flange, such as poor concentrically and poor squareness. Wheel and flange are not fixed well and slip, somewhat. Use unbalanced wheel or the wheel is not balanced well Wheel be not well dressed. The coupling between motor and spindle become loosen broken.
Fig 18 Cross feed mechanism MAGNETIC CHUCK To ensure maximum precision, when grinding with a magnetic chuck, the following process must be taken. Take care of grinding the magnetic chuck, otherwise the machine table will be distorted. This will happen if the magnetic chuck, clamped to the table, does not have a flat contact surface.
| T Chuck ; Pa ~ Table zl Fig. 19 1. The underside of the magnetic chuck must first be ground with great care to ensure this is flat sides, they are used to prevent chuck from moving only, in this way, chuck must not be switched on, wet grinding with max. Coolant volume and minimum wheel in feed is recommended to avoid excessive heating and the consequent surface inaccuracy. 2. Lightly grease the ground surface area of the machine table, and underside of the magnetic chuck, to for keeping it accurate 3.
. The wheel and the work piece have two contact sections, and the surface of grinding is bad. . The wheel do not have the “Relief Angle”, thus it contacts the whale face to the work piece, cause the work piece surface rough and rugged. Furthermore, it will cause work piece burned and cracked, . The “Relief Angle” of the wheel is lower than the surface of the work piece, so that the work piece face becomes two sections, the upper part like those in (3) and the lower in (1). .
PACKING Customer: No: LEST Date: Name Qt Name Qt Horizontal grinder With Puller for adapter rectangular table Flange Tool box 1 Wheel Screwdriver 100% 6 ! Pipe dram Cross screw-drive 100% 6 Wash pipe Open-end wrench 12x14 Flange wrench we bt fe foe a ef 17x18 Setting plate 22x24 Anchor bolt{with nut) Inner hexagon sparer 3 1 Whee] dresser Sheath for inner hexagon spanner Balancing stand Adjusting screw for balancing stand Balancing shaft w Customer's check Packer Person in charge; Check 37
