GM Series
TM19040 P.27/31
6.2.1. Checking for lubricant leakage
Visually check the periphery of the reduction gears, joint surface with the machine, and the entire machine
to make sure that there is no leakage of the lubricant.
If a leakage of the lubricant has been found, identify and remove the cause, and then replenish the
lubricant.
NOTICE
The adhering earth and sand may cause seizure, heat generation, or protrusion, and the lubricant
may leak due to the loss of the sealing performance of the floating seal.
6.2.2. Inspecting the mounting bolts
Check looseness of the mounting bolts for equipment and the mounting bolts for driving part. If any are
loose, retighten with the specified tightening torque. (Refer to Table 4-1 for the tightening torque.)
6.2.3. Checking for abnormal noise
CAUTION
Abnormal noise should be checked during operation. Never touch the machine during the check.
Step 1
Be careful not to touch GM and check abnormal noise or sudden changes in sound.
Step 2
If any abnormal noise has been detected, report it to the administrator and stop the machine
operation.
6.2.4. Inspecting the surface temperature
Measure the surface temperatures of the motor and reduction gears to check whether they are not over
the standard temperature. Perform the measurement after continuous operation.