Ski-Doo FORMULA III, Shop Manual

Page: 247 / 356

Section 06 ELECTRICAL
Sub-Section 05 (ELECTRIC STARTER)
06-05-7
CLEANING AND INSPECTION
CLEANING
CAUTION : Armature starter yoke ass’y
and drive unit assembly must not be im-
mersed in cleaning solvent.
Clean brushes and holder with a clean cloth
soaked in solvent. Brushes must be dried thor-
oughly with a clean cloth.
Blow brush holder clean using compressed air.
WARNING : Always wear safety goggles
when using compressed air.
Remove dirt, oil or grease from commutator using
a clean cloth soaked in suitable solvent. Dry well
using a clean, dry cloth.
Clean engine starter gear teeth and drive unit
(clutch).
NOTE : Bushings must not be cleaned with
grease dissolving agents.
Immerse all metal components in cleaning solu-
tion. Dry using a clean, dry cloth.
INSPECTION
Armature
NOTE : An ohmmeter may be used for the
following testing procedures, except for the
one concerning the shorted windings in the arma-
ture.
Check the commutator for roughness, burnt or
scored surface. If necessary, turn the commutator
on a lathe, enough to remove grime only.
Check the commutator for mica depth. If the
depth is less than 0.20 mm (0.008 in), undercut
the mica. Be sure that no burrs are left and no
copper dust remains between the segments after
the undercutting operation is completed.
1. Commutator undercut 0.20 mm (.008 in)
Check the commutator out-of-round condition
with V- Blocks and an indicator. If the commutator
out-of-round is more than 0.40 mm (.016 in), the
commutator should be turned on a lathe.
Check commutator outer diameter. If less than
specified value, replace.
Test for Ground Circuit in the Armature :
Use growler test probes. Check between arma-
ture core and the commutator bars. If growler
lamp turns on, bars are grounded.
1. Test probes
2. Commutator bars
-
;
'
'
F01H0RA
1
MODEL WEAR LIMIT
All 27 mm (1.063 in)
A03E06A
A09E08A
1
2