7
LUBRICATION
1. SM-Hyponic gearmotors are grease-lubricated.
They are filled prior to shipment and arrive ready for
customer use.
2. Ensure that the connection to the driven machine is
correct.
3. Ensure that the rotation direction is correct.
4. After completing these steps, start the test run,
without any load, and increase the load gradually.
Also observe the precautions listed in Table 6.
OPERATION
Once the SM-Hyponic gearmotor is installed, ensure that
the wiring is correct and secure prior to operation.
Observe the precautions listed in Table 6 during the trial
run. Stop running the gearmotor if any abnormalities are
detected and contact your nearest sales office or
distributor.
DAILY INSPECTION AND MAINTENANCE
1. Inspect the gearmotor daily for each of the items
listed in Table 7.
2. If any abnormalities are found during daily
inspections, follow the procedures outlined in the
Troubleshooting Guide, Table 20 on page 14. If the
abnormality is not listed or the recommended
procedure does not solve the problem, contact your
nearest sales office or distributor.
3. The SM-Hyponic gearmotor does not require grease
replenishment, but overhauling after 20,000 hours of
operation, or 2 – 3 years will extend its
life. Note:
Over-hauling consists of disassembling the unit,
replacing the seals and gaskets, cleaning the
internal parts and then repacking the unit with
designated grease.
Observation Possible Cause
Table 6 Trial Run Precautions
(1) The casing is distorted due to an uneven mounting surface.
(2) The gearmotor is resonant due to insufficient rigidity of the mounting surface.
(3) The shaft of the SM-Hyponic and the driven machine are not aligned.
(4) Vibrations of the driven machine are conveyed to the gearmotor.
(5) Rigidity of the driven machine and its shaft is insufficient (hollow shaft type).
(6) Excessive force is exerted on the baffle sections of the torque arm (hollow shaft type).
(7) After the SM-Hyponic gearmotor is flange or foot mounted, undue force is exerted between the gearmotor
and its shaft.
(1) The electric current is exceeding the rated value specified on the nameplate.
(2) The rise and fall of the electric current is too intense.
(3) The ambient temperature of the gearmotor is too high.
Any abnormal noises or
vibrations.
Abnormally high temperature
of the gear casing or motor
frame surface.
Table 7 Daily Inspection Items
Items Details
Electric current Is the electric current higher than the value specified on the nameplate?
Noise Is the gearmotor making any unusual noises?
Vibration Are there any unusual vibrations of the gear case or motor frame?
Is the surface temperature of the gear case, or motor frame not too high or rising suddenly? (The temperature
Surface temperature rise during operation varies depending on the type of motor. There may be a problem, if the temperature
frequently rises approximately 40°C (104°F) above the ambient temperature.)
Grease leakage Is there any grease leaking from the gear assembly?
Mounting bolts Are there any loose mounting bolts?
Chains and V-belts Are there any loose chains or V-belts?
Brake Is the brake lining worn out?
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