Maintenance 10. Ball Screw Spline Unit
G10 / G20 Rev.20 195
10.1 Greasing the Ball Screw Spline Unit
Grease
For Ball Screw Spline Unit (AFB grease)
Cross-point screwdriver 1
For clamp band removal
Only for Cleanroom-model and
The brake release switch is applied to both Joints #3 and #4. When the brake release
switch is pressed, the respective brakes of the Joints #3 and #4 are released
simultaneously.
Be careful of the shaft falling and rotating while the brake release switch is being pressed
because the shaft may be lowered by the weight of the end effector.
10.1.1 Standard-model (S type)
Cover the surrounding area such as the end effector and peripheral equipment in case the
grease drips.
Controller. Stop motor excitation. (MOTOR OFF)
Move the arm to a position where Joint #3 can be moved in full stroke.
Move the shaft to its upper limit manually
while
pressing the brake release switch.
Wipe off the old grease from the upper part of
the shaft, and then apply new grease to it.
When applying the new grease to the upper
part of the shaft,
directly fill the grooves on it
. Wipe off excess grease from the
Move the shaft to its lower limit manually while pressing the brake release switch.
Wipe off the old grease from the lower part of
the shaft, and then apply new grease to it.
When applying the new grease to the lower part of the shaft, directly fill the grooves
on it by hand
. Wipe off excess grease from the shaft.
shaft up and down several times while pressing the bra
ke release switch to
smooth out the grease on the shaft.
Wipe off excess grease from the shaft.
When wiping off the excess grease from the upper part of shaft, turn OFF the
Controller and remove the arm top cover.
For details, refer to Maintenance: 3.1 Arm Top Cover.
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