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9.3.4 Grease Replenishment/Exchange for RBT-axes Gear
9.3.4.1 Grease Replenishment
9
Maintenance and Inspection
9.3
Grease Replenishment/Exchange
Fig. 9-6: RBT-axes Gear Diagram
Grease exhaust port
Hexagon socket head plug PT3/8
(Refer to fig. 9-6 "RBT-axes Gear Diagram" .)
1. Remove the hexagon socket head plugs PT3/8 from the grease
exhaust port.
• If grease is injected with the plug on, grease will leak
inside the motor and may cause a damage. Make sure to
remove the plug before the grease injection.
NOTE
• Do not install a joint, a hose, etc. to the grease exhaust
port. Failure to observe this instruction may result in dam-
age to the motor due to coming off of an oil seal.
2. Remove the hexagon socket head plug PT1/8 from the grease inlet
and install a grease zerk A-PT1/8.
3. Inject grease into the grease inlet using a grease gun.
(The grease zerk is delivered with the manipulator.)
– Grease type:
– Amount of grease:
– Air supply pressure of grease pump:
– Grease injection rate:
4. Move the R-, B-, and T-axes for a few minutes to discharge excess
grease.
5. Wipe the discharged grease with a cloth, and reinstall the plug. Before
installing the plug, apply Three Bond 1206C on the thread part of the
plug. Then tighten the plug with a tightening torque of 24.5 N•m (2.5
kgf•m).
6. Remove the grease zerk from the grease inlet, and reinstall the plug.
Before installing the plug, apply Three Bond 1206C on the thread part
of the plug. Then tighten the plug with a tightening torque of 4.9 N•m
(0.5 kgf•m).
If the plug is installed while grease is being exhausted,
grease will leak inside the motor and may cause a damage.
NOTE
Ensure that grease has been completely exhausted before
installing the plug.
9-12
Grease inlet
Hexagon socket head plug PT1/8
Molywhite RE No. 00
1040 cc
(2080 cc for the 1st supply)
0.3 MPa or less
8 g/s or less
HW1483270
HW1483270
54/88
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