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1.2 Load side
(1) Remove the bearing outer cover of load side. (For EDM22 or less, this cover is unified unit with
bracket.)
In addition, since the V ring is attached in the case of waterproof specification, remove
the V ring. Refer to the outline drawing to identify the type of V-ring.
(2) Pull out the slinger of bearing outer side of load side from the shaft. Slinger is fixed to the shaft
by screw at one position. ( Motors, to which the outer slinger is attached, are EDM31 or over)
(3) Remove the bracket of load side. When it is removed, mark the matchmarks. As to the motors
EDM27
～
EDM43 using roller bearing, pay attention since bearing outer ring also is pulled out
together.
(4) Pull out the bearing from the shaft by puller. (As to the detail of replacement work of bearing,
refer to item V-2.)
(5) After completion of disassembly, wash off the grease on the bearing and bearing cover, etc. by
clean washing oil. (This work is unnecessary for the shielded bearing.)
(6) Fill the cleaned bearing or replaced bearing with grease, turning the outer ring.
Fill the bearing cover with grease of about 1/2 to 1/3 of the capacity. (This work is unnecessary for
the shielded bearing.)
(7) Carry out assembly work under reversed procedure of disassembly procedure. Align
matchmarks marked at the time of disassembly and tighten the bolts of diagonal positions
alternately in order to avoid uneven tightening.
Apply grease (Three bond TB1805 spray type) to
the lip of V ring.
(8) After assembling, rotate the shaft manually to confirm smooth rotation.
[Note]
1) Giving the impact to the pulse oscillator will cause trouble. Never hit it with hammer, etc. Since
clearance fit is adopted for engaging of pulse oscillator rotor and shaft, they can be pulled out
manually.
2) Even for the cases of removing and re-mounting of pulse oscillator at the times of replacement,
etc. of bearing or pulse oscillator, setscrew position for fixing the pulse oscillator rotor is
determined to make that the magnetic pole position detection of the rotor of motor is same. As
shown in Detail of A-A Cross Section of Fig. 9 of Page 12, when one of 2 positions of setscrew M4
is coincided with flat cut position of motor shaft (one position of motor shaft, where setscrew
contacts, is flat surface), mount the other setscrew arranging that it surely comes to the position
turned 90° to counterclockwise seen from the non-load side shaft end (position where motor shaft
is not cut flatly).
As to motors EDM31 or over, the part where pulse oscillator rotor is inserted, is an insulated short
shaft. When this insulated short shaft is removed from motor shaft, be sure to mark the
matchmarks. (After mounting, confirm that the direction of keyway position of output shaft of
motor shaft and flat cut position of insulated short shaft is same.)
