Honda GX240RT2 Service And Repair Manual page 128

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BRUSH LENGTH
Measure the brush length.
If the negative brush length is less than the service limit,
replace the brush and brush holder.
If the positive brush length is less than the service limit,
replace the center bracket and brush holder.
STANDARD: 7.0 mm (0.28 in)
SERVICE LIMIT: 3.5 mm (0.14 in)
BRUSH CONTINUITY CHECK
Check for continuity between the positive (+) brushes
(1) and negative (-) brushes (2).
There should be continuity between both the positive
brushes.
There should be continuity between both the negative
brushes.
There should be no continuity from either positive brush
to either negative brush.
If the correct continuity of the positive (+) brushes is not
obtained, replace the center bracket
If the correct continuity of the negative (-) brushes is not
obtain, replace the negative (-) brushes.
ARMATURE MICA DEPTH
Visually inspect the commutator surface for dust, rust,
or other damage. If necessary, wipe it with a clean
lint-free cloth. If rusted or damaged, dress with a fine
emery cloth.
When the mica is clogged, or its depth is smaller than
the service limit value, recut the grooves using a
hacksaw blade or a small file.
STANDARD: 1.0 mm (0.04 in)
SERVICE LIMIT: 0.2 mm (0.01 in)
(2)
(page 10-9).
STARTING SYSTEM
(1)
(1)
(2)