9
Maintenance and Inspection
9.3 Grease Replenishment/Exchange
9-8
177010-1CD
HW1483759
MH215
II
9.3.1.1 Grease Replenishment/Exchange for S-Axis Speed Reducer
Fig. 9-4: S-Axis Speed Reducer Diagram
Grease Replenishment
(Refer to
Fig. 9-4 “S-Axis Speed Reducer Diagram”
.)
Replenish the grease according to the following procedure:
1. Remove the hexagon socket head plug from the grease inlet and
exhaust port.
2. Install a grease zerk A-PT1/4 to the grease inlet. (The grease zerk is
delivered with the manipulator.)
3. Inject the grease through the grease inlet using a grease gun
– Grease type:
Molywhite RE No. 00
– Amount of grease:
1200 cc
(2400 cc for 1st supply)
– Air supply pressure of grease pump: 0.3 MPa or less
– Grease injection rate:
8 g/s or less
4. Move the S-axis for a few minutes to discharge excess grease.
5. Wipe the discharged grease with a cloth and reinstall the plug PT3/8
on the grease exhaust port. Apply Three Bond 1206C to the thread
part of the plug, and tighten the plug with a tightening torque of 23 N
•
m
(2.3 kgf
•
m).
6. Remove the grease zerk from the grease inlet and reinstall the plug
PT1/4. Apply Three Bond 1206C to the thread part of the plug, and
tighten the plug with a tightening torque of 12 N
•
m (1.2 kgf
•
m).
Grease exhaust port
Hexagon socket head plug PT3/8
S-axis speed
reducer
Hexagon socket head plug PT1/4
Grease inlet
S1
2BC
1BC
A
B
FB
NOTE
If grease is injected with the plug on, the grease will leak
inside the motor and may cause a damage. Make sure to
remove the plug before the grease injection.
Do not install a joint, a hose, etc. to the grease exhaust port.
Failure to observe this instruction may result in damage to
the motor due to coming off of an oil seal.
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