Maintenance
02.01|FDB 150, 300, 340, 660, 900, 1040 |en
51
41 Assemble the O-ring over the disk boot, it will seat in the
groove in the air motor assembly.
42 Assemble the new internal retaining ring and rubber disk to
the spindle supply fitting as shown in the figure.
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 se-
cure 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.
Pivot Bearing Replacement
The pivot bearing allows articulation of the motor assembly. The piv-
ot 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 bear-
ing 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
