Nabtesco GM Series - Page 24

GM Series
TM19040 P.24/31
NOTICE
Use the same lubricant brand for replacement and replenishment, and do not mix different brands.
When changing the oil type, flush the inside of reduction gears.
Replace or replenish the lubricant according to the following procedure. Also, work with GM in the posture
with the oil fill port up and the oil drain port down as shown below.
Fig. 5-1
Step 1 When replacing, remove the plug of the oil fill port, oil drain port, and oil level check port, and
drain the lubricant. When replenishing the lubricant, do not remove the plug of the oil drain port.
NOTICE
Receive the drained lubricant with a container.
Step 2 After the completion of drainage, plug the oil drain port, and tighten the plug with the specified
tightening torque (p.25 Table 5-3).
（Refer to the confirmation notice for plug size.）
Step 3 Fill up the lubricant from the oil fill port.
Step 4 Referring to the amount of filled lubricant described in the confirmation notice, stop filling just
before the lubricant overflows from the oil level check port.
Oil Drain Port
Oil Fill Port
Oil Level
Check Port