Maintenance
43. Apply non-hardening thread sealant to the threads of the
spindle supply fitting.
44. Thread the spindle supply fitting into the air motor assembly
until it is finger tight then tighten an additional 1/2 turn.
45. Slide the rubber disk into the counter bore in the front
housing.
46. Push the internal retaining ring into the counter bore to secure
the rubber disk.
47. If the tool was locked to single axis compliance before air
motor replacement, apply Loctite 7649 and 222 to and install
the 4 M4 x 16 mm button head socket cap screws. Tighten to
2.82 Nm.
48. Install the deburring tool to the robot or work location.
49. Connect the air hose to the spindle supply fitting and the
compliance air fitting.
50. Apply and/or unlock the spindle motor air supply.
8.3.3 Pivot Bearing Replacement
The pivot bearing allows articulation of the motor assembly. The
pivot bearing is subject to wear and should be replaced when
excessive spindle motion is observed. Contact between the motor
air supply fitting and the main housing indicates pivot bearing
wear which should be corrected. To minimize possible downtime,
the pivot bearing should be replaced any time the air motor is
replaced.
The pivot bearing may be replaced in one of two ways. For quick
repairs with minimal downtime the user is encouraged to replace
the entire rear housing assembly. When a spare unit can be placed
into service or downtime is not an issue a new pivot bearing can
be installed in an existing rear housing.
8.3.3.1 Pivot Bearing Replacement FDB 150
The articulation of the air motor spindle is accomplished using a
gimbal suspension. After prolonged heavy use, the bearings in this
suspension may require replacement. There are two bearings in
the outer gimbal ring and two bearings in the black anodized ring
on the motor subassembly. Should the bearings require
replacement refer to the steps below:
45
04.00 | FDB | Assembly and Operating Manual | en | 389072
