Bosch EPS 807 - Replacing the Rotary Encoder B1; Preparatory Work; Removing the Rotary Encoder B31; Removing the Rotary Encoder B4

1 689 975 140 2013-07-01| Robert Bosch GmbH
20 | EPS 807 / 815 | Repair worksen
6.6 Replacing the rotary encoder B1
i The following description only applies to the drive
motor 1687220905.
6.6.1 Preparatory work
1. Turn off the EPS 815 at the master switch.
2. Disconnect the EPS 815 from unit from the mains
and secure to prevent renewed switch-on.
3. Remove the component connected to the flywheel.
4. Remove the side cover (Fig. 32, Pos.1) on both
sides.
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1
Fig. 32: Removing the side panel
6.6.2 Removing the rotary encoder B31
i The rotary encoder B31 is not contained as standard
in the EPS 815 and is retrofitted in conjunction with
the test sets VPM844 and CAM847. In it's as-deliv-
ered condition, the EPS 815 has a cover in place of
the rotary encoder B31.
1. Loosen the collet chuck. To do so, unscrew the hexa-
gon socket head bolt (Fig. 33, Pos. 5).
2. Remove the hexagon socket head bolt (Fig. 33,
Pos. 4).
3. Remove the rotary encoder B31 (Fig. 33, Pos. 3) or
the cover (Fig. 33, Pos. 2).
6.6.3 Removing the rotary encoder B4
1. Remove the connecting cable from rotary encoder
B4 (Fig. 33, Pos. 1).
2. Remove the rotary encoder B4 (Fig. 33, Pos. 1). To
do so, loosen the lock nut and then unscrew the
rotary encoderB4.
1
2
3
4
5
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Fig. 33: Drive motor with rotary encoder B31
6.6.4 Removing the trigger wheel
1. Remove the hexagon socket head bolt (Fig. 34,
Pos. 4).
2. Remove the housing flange (Fig. 34, Pos. 1).
3. Remove the retaining ring (Fig. 34, Pos. 3) with
retaining ring pliers.
4. Remove the trigger wheel (Fig. 34, Pos. 2) from the
shaft. Do not lose the feather key in the shaft.
1
2
3
4
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Fig. 34: Removing the trigger wheel