PNC-12 EXTREME
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surfaces every week. The longitudinal track and idler wheel shall be wiped clean after completion of
every shift. Use tarpaulin to wipe to prevent track rusting.
5.2 MACHINE LUBRICATION
Sealed antifriction bearing with permanent grease is installed in all supporting rollers and guide pulleys of
this machine. Therefore, it is usually not required to maintain them. The tracks and idler wheels shall be
lubricated once every day. A relatively convenient method is to carefully clean the guide rails and apply a
layer of lubricating oil once every week.
5.3 MACHINE ADJUSTMENT
The longitudinal guide rail of the machine adopts imported hard guide rail axis. It cannot be easily
abraded if constantly maintained. The transverse aluminum guide rail is clamped by upper and
lower guide pulleys. After long-term use, if it is loose, the clamping screws at two sides of the idler
wheel can be loosened and the housing pin above can be adjusted to make sure the idler wheel
rolls freely within the full length of transverse guide rail.
After a certain period of operation, longitudinal and transverse gears and racks will be abraded to
different extents. Then, the housing can be disassembled to adjust the connection distance of each
motor and control the gap between gear and rack so as to assure the traveling precision and
stability of the machine.
5.4 CLEANING OF CUTTING NOZZLE
During cleaning of cutting nozzle in each time, the preheating oxygen hand valve; press down the cutting
oxygen button to open the cutting oxygen solenoid valve; close the cutting hand valve on the cutting torch
to facilitate the insertion nozzle cleaner of the cutting nozzle. In order to blow away dust, insert the nozzle
cleaner in the oxygen hole to move up/down and slowly open the cutting oxygen hand valve of the cutting
torch.
6 OPERATION OF CUTTING TORCH
It must be noticed that the cutting platform shall be checked first to see if there is any other material
stacked or turned cutting scrap before the machine is moved. The machine may be moved only after all
such foreign objects are cleared, thus preventing the cutting torch from hitting obstructions to result in
bending of cutting torch or damage of other parts. Before leaving the factory, each cutting torch goes
thorough backfire safety inspection. If dirty or damaged cutting nozzle is used to cut, the safety will not be
guaranteed. Under this circumstance, flashback may come into the cutting torch. The phenomenon is
described as follows: the flame disappears suddenly, and sharp wheezing or hiss will be sent from the
cutting torch head. If flashback happens, the gas valve shall be closed immediately and then the heating
oxygen and cutting oxygen valve shall be closed. Also, supervisor will be invited to check the problem.
After solving flashback problems, ignition can be done. Before ignition, please blow air into the pipeline
and cutting torch.
6.1 SHUTDOWN OF CUTTING TORCH
When a work procedure is completed and it is required to close the cutting torch, it must be closed
according to the following sequence: cutting oxygen solenoid valve, gas two-way valve and preheating
oxygen two-way valve. Lift the cutting torch and then move the machine to enter the next cutting
Содержание PNC-12 EXTREME
Страница 26: ...PNC 12 EXTREME 25 8 CUTTING DATA 102 Standard Speed Acetylene 102 D7 High speed Acetylene...
Страница 28: ...PNC 12 EXTREME 27 9 WIRING DIAGRAM...
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Страница 40: ...PNC 12 EXTREME 39 PNC 12 EXTREME Operation Manual Version T30003392 First edition July 2013...