Maintenance, Service And Repair; Maintenance; Changing The Cutting Tool; Changing The Belt - YILMAZ KD 402 Manual

8. MAINTENANCE, SERVICE AND REPAIR

8.1 Maintenance

8.1.1 Cut the electric and pneumatic (if any) power connections of the machine.
8.1.2 Clean all surfaces of the machine from burs, chips and foreign substances. If the machine will not be used for a
long time, lubricate undyed parts with oil that prevents rusting.
8.1.3 When cleaning the machine, do not use materials that may damage the dye.
8.1.4 Control cutting tools against corrosion, distortion and fractions. If cutting tools are damaged, change them.
8.1.5 Before using cutting tool, operate the machine out of gear and control whether it is inserted correctly, it is
without flexure and it is inserted appropriately. Do not use cutting tools that are damaged or lost its functionality.

8.2 Changing the cutting tool

8.2.1 Cut the electric connection of the machine.
8.2.2 Dismantle the blade guard group (FIGURE 2 N0.15) in the stipulated order.
8.2.3 Remove the segment (FIGURE 2 NO.180) on the protection sheet bar (FIGURE 2 NO.6). Set the end of the
protection sheet bar to off-position by removing it from the pin.
8.2.4 Remove the saw protection connection screws (FIGURE 2 NO.160) with the aid of philips screwdriver. Remove
the saw protection Group which is set to off-position.
8.2.5 Remove the M10 bolt (FIGURE 2 NO.17) from its place with the aid of 17 mm switch. While removing the bolt,
hold from the other end of the saw shaft (FIGURE 2 NO.50) with 8 mm Allen switch.
8.2.6 Remove the string (FIGURE 2 NO.181) and saw coupling (FIGURE 2 NO.19) respectively.
8.2.7 Take out the saw blade (FIGURE 2 NO.28) carefully.
8.2.8 Install the new saw blade onto the shaft ensuring the correct rotation direction.
8.2.9 Install the guard group parts applying the reverse order as described above.
8.2.10 It is necessary to sharpen / replace the saw blade in certain intervals depending on the cutting material. If the
cut material leaves burr after the cutting operation or if the saw blade is strained, it needs to be sharpened /
replaced.
8.2.11 When replacing the saw blade, use the part of the blade washer which is appropriate for the blade shaft
diameter. The outer diameter of the blade washer is 30 and 32 mm.
8.2.12 During saw blade change operations, use protective gloves
8.2.13 Saw must be selected according to standart DIN EN 847-1
8.2.14 A saw blade rotating in reverse direction, causes danger both for the operator and the equipment. The
teeth of the saw blade would be damaged and even broken.

8.3 Changing the belt

8.3.1 Cut the electric connection of the machine.
8.3.2 Also, remove M5 imbus screw (FIGURE 2 NO.175) with the aid of Allen switch by turning the plastic arm
(FIGURE 2 NO.156) manually. After removing the connections, remove the balancing wheel protection
(FIGURE 2 NO.27) from its place.
8.3.3 Loosen the motor connection bolts (FIGURE 2 NO.176) with the aid of 13 mm switch.
8.3.4 Hold the belt tension part (FIGURE 2 NO. 155) from its part, which has a nozzle, to the switch with the aid of 12
mm switch. Loosen the M16 nut (FIGURE 2 NO.157) which is located on the belt tension part with the aid of 24
mm switch.
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