Collector Ring And Bearing Replacement - Kohler 5ECD Service Manual

6.2 Collector Ring and Bearing
Replacement
1. Unsolder the collector ring leads from the collector
ring terminals.
2. Remove the collector rings with a three-jaw puller.
3. Remove the bearing with a three-jaw puller.
4. Press the new bearing onto the rotor shaft.
5. Align the collector ring keyway with the keyway on
the rotor shaft. See Figure 6-8.
6. Press the new collector rings onto the rotor shaft.
Note: The new collector rings must be turned down to a
finish of 32 micro inches using a lathe and
commutator stones.
rings on the rotor shaft.
7. Solder the leads onto the collector ring terminals.
The connection is not to exceed 9.65 mm (0.38 in.)
beyond the collector rings. See Figure 6-8.
8. Test to ensure continuity at the collector rings.
Min. diameter mm (in.)
Max. finish
Max. eccentricity mm (in.)
Max. out-of-round mm (in.)
Figure 6-7 Collector Ring Dimensions
62 Section 6 Generator Disassembly/Reassembly
Turn down the collector
57.15 (2.250)
32 micro inches
0.08 (0.003)
0.01 (0.0002)
90°
2
View A-A
1. Collector ring leads
2. Keyways
Figure 6-8 Rotor Assembly
.38 maximum
(as soldered)
A
A
1
598695
TP-6391 9/08