Huvema HU 50 H, Operation Manual, Page: 27 / 37

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11. Maintenance of Machine
11.1 Routine maintenance of machine is very important for accuracy and function
of machine.
11.2 Add lubricating oil to oil tank and lubricating site regularly.
11.3 Please often change machining position of workpiece on the table.
11.4 Workpiece and cutter must be tightened before working.
12. Simple Malfunction and Obviation
12.1 Adjust lockinng round nut to eliminate big clearance when the runout of
spindle is too big.
12.2 If strange sound happens during the worktable rises or falls, check whether
gib is loose, or whether lubricating oil is poor. Please adjust gib and add oil.
12.3 Check whether speed change handles are in place when strange sound
happens in gear box, check whether oil is poor, whether shifting fork is damaged.
Please adjust the handle’s position, or add oil, or replace the shifting fork.
Caution :
1. Shut off power supply before repairing the machine.
2. The machine should be repaired by professional only.
13. Electrical System of Machine
Refer to wiring diagram and electrical parts list.
13.1 Power supply: 380V
±
10%, AC 50
±
1Hz, 3PH. Switch on main switch
after checking power supply.
13.2 The machine has many protection functions, such as protection, spindle brake,
E-stop and so on.
13.3 Press "E-stop" button on the operation panel immediately when malfunction
happens, then turn "E-stop" button clockwise after obviating malfunction.
13.4 The machine must be repaired by professional only.
Warning : No repairing on electricity.