Machine Use And Maintenance - Promac JDT-5030 Operation Manual

9 Machine use and maintenance:

9.1 Before running the machine, carefully read the Operation Manual first, fully understand the
structure of the machine and its performance and needs to familiar with locations for all
levers and buttons.
9.2 Lubrication of the machine is very important. Daily lubrication work as per the equirements
of the operation manual is necessary. Filter should be cleaned once every two weeks
otherwise pump, transmission parts and bearings will be damaged.
9.3 Max. spindle torque of this machine is 160Nm. Max. feed resisting force in the driving
system is10000N. Over permitted cutting feed range is not allowed. High spindle speed with
big cutting feed is not good to the machine.
9.4 As standard drill with118 degree angle features big cutting force but quick wear-out, so
diameter and roughness of holes is not so ideal after drilling, therefore, regrinding its edges
particularly for the big diameter drills is necessary. It is better to use two different angles for
the machining of cast iron material (Second angle could be 70°).
9.5 Spot facer with three edges is proffered for the spot facing machining, using a normal drill
for spot facing job will cause vibration. However, it will have a better result for the spot
facing machining if reducing the rear angle of the normal drill with two different angles and
going down the cutting speed and feed rate.
9.6 Temperature of motor will be increased so quickly when tapping due to frequently Motor
direction be changed. Therefore, rapid and continuous taping shall be avoided. Max. eight
times per minutes of tapping is recommended. The machine shall be stopped for cooling if
the motor is too hot.
9.7 A proper cutting force is required when milling. As this is not a milling machine although
it has a milling function. Too big milling force will cause worktable moving round the
column, therefore, clamping the worktable strongly is required when milling and a
reasonable cutting feed rate for milling job is necessary.
9.8 Please turn off the coolant valve when mounting and dismounting tools, clamping or
adjusting work piece or measuring work piece, as coolant is not necessary during this period.
Stop coolant pump if these job takes more than ten minutes.
9.9 As gears are to be used for spindle and feed system, so it is not allowed to change spindle
speed or change cutting feed rate when machine running, otherwise it will damage gears,
shafts or relevant parts.
Operation Manual
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