AS NZS 62841.3.12:2018 pdf free
AS NZS 62841.3.12:2018 pdf free.Electric motor-operated hand-held tools,transportable tools and lawn and garden machinery – Safety
Threading machine safety warnings
a) Keep floor dry and free of slippery materials such as oil. Slippery floors invite accidents.
b) Restrict access or barricade the area from bystanders when the workpiece extends beyond the machine to provide a minimum of one metre clearance from the workpiece. Restricting access or barricading the work area around the workpiece will reduce the risk of entanglement.
c) Do not wear gloves. Gloves may be entangled by the rotating pipe or machine parts leading to personal injury.
d) Do not use the machine for other purposes such as drilling holes or turning winches. Other uses or modifying this machine for other applications may increase the risk of serious injury.
e) Secure the machine to a bench or stand. Support long heavy pipe with pipe supports. This practice will prevent the machine from tipping.
f) While operating the machine, stand on the side where the operator control switch is located. Operating the machine from this side eliminates need to reach over the machine.
g) Keep hands away from rotating pipe and fittings. Stop the machine before wiping pipe threads or screwing on fittings. Allow the machine to come to a complete stop before touching the pipe. This practice will reduce the risk of entanglement in rotating parts.
For tools marked with one or more rated voltages, the test is made at each of the rated voltages. For tools marked with one or more rated voltage ranges, the test is made at both the upper and lower limits of the ranges. For tools with multiple gear box settings, the test is made at each specified gear box setting in accordance with 8. 14.2 b). The highest value of input or current is applicable.
Threading machines are operated for 30 s at load followed by 30s no load and then switched off for a rest period of 60 s. This cycle is continued until thermal equilibrium is reached, or for 30 cycles, whichever is achieved first. The tool is loaded during the periods of operation by means of a brake adjusted to attain the highest input or current as determined in Clause 11. The brake load may be ramped up over a period of time not to exceed 5 s. This ; ramp up time is added to the 30 s cycle at load. Temperatures are measured at the end of the last load period.AS NZS 62841.3.12 pdf free download.
