9
Maintenance and Inspection
9.3 Grease Replenishment/Exchange
9-11
173124-1CD
HW1482991
MPL300
II
9.3.3.1 Grease Replenishment
(Refer to
Fig. 9-5(a) “L-Axis Speed Reducer Diagram”
and
Fig. 9-5(b) “L-Axis Grease Replenishment”
.)
1. Remove the hexagon socket head plugs from the grease inlet and
grease exhaust port.
2. Install a grease zerk A-PT1/8 to the grease inlet.
(The grease zerk is delivered with the manipulator.)
3. Inject grease through the grease inlet using a grease gun
– Grease type:
Molywhite RE No.00
– Amount of grease:
360 cc
(720 cc for 1st supply)
– Air supply pressure of grease pump: 0.3 MPa or less
– Grease injection rate:
8 g/s or less
4. If you cannot inject grease with your grease gun, prepare a grease
hose as shown in
and inject grease.
5. Move the L-axis for a few minutes to discharge excess grease.
6. 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).
7. 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).
NOTE
• 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.
• 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.
CAUTION
•
If the L-arm is tilted at 80 degrees or more, the link-C interferes with
the plug for air exhaust.
Do not tilt the L-arm over 80 degrees when verifying the manipulator
operation.
Plug for air exhaust
Link-C
Plug for air exhaust
Link-C
Link-C
80°
90°
170°
74 of 100
