Jeep UNIVERSAL CJ-2A - Page 141

E LEC T R I CA L SY STE M
FIG. !57 - TYP ICAL STARTI NG MOTO R
10-F rome l- End Plate
2- P iug
.l- Th rust Washer
I 1 -lnsul o tin ~: Wa sher
12 - Woshcr
19- Intc:rmec1H~ t e Bea nng
20- Ik ndi x Drive
21-&: rew
13- Nut 4 -B r ush Plate A ssc nl bly
5-S crcw
t\- Lnc k Wa •he r
7- l nsulati ng Washer
a-T ermi nal
9 - Fiel d Coil nod Po le Shoe S.:t
1 4-Loc k Washer
1 5-I ns u lotin~ 'Bu,h in g
16 -Po le Sh<>e Scre w
17-S i eeve BeHdng
18- Drive End F rome
22- Lock WMher
23- Th ru st Woshcr
24-Key
25-A rmnture
26- Thr u Bo lt
.t7-l nsu 1otor
' -48. Del eted.
I-49. Over ha u l P roc ed ur e
At pe riodic interva ls t he sta r ting moto r ci rcuit
s ho u ld be tho roughly checked a nd t he motor re-
moved f rom t he engine f or cle anin g and chec ki ng .
1-50. Di sas s embly
To re mo ve t he starting motor from th e engine,
disconnect t
he l ead s and co ve r th e b attery l ead
wi th a sh or t pi ece of hose to prevent short circuit-
ing.
Remo ve t he flange bol ts holding t he starting
m otor to th e fl ywhee l housing. R e move t he star ti ng
-notor from t he vehicle.
Sach pa rt of the starting m otor should be re mov ed ,
cl
eaned. and i nspected f or evi dence of wear or
da mage. T he Bendix Drive should be clea ned and
· nspected for evidence of wear or a distorted spring.
Bearing s s hould be checked for pr op er cl earanc e
a
nd fit. All insulation should be free of oil and in
g ood co ndition . T he a rmature , fi e ld co ils, a nd
1 40
b rushes should be ch e cked for go od ground a nd
l ack of o pen circ u its.
1- 51. B ru she s
The b rushes should sl ide fre ely in t heir holde rs
a nd make full contact on th e co mmutator . Wo rn
b rushes should be repl ace d.
C
heck b ru sh spr ing te nsion with a sp r ing scale.
Hoo k the scal e under t he brush spr ing near t he
b n~sh and pull on a l ine parallel with the sid e of
~ he b rush. Ta ke t he read in g j ust as t he spri ng
l ea ves t he b rush . It is 1 mportant that the b rush
sp r mg tension be kept •vith in the l imits specified
at: t he end of th is sec tio n. If th e te nsion is too low,
t
he re wi ll be a loss of efficiency from poo r b ru sh
co ntact . To o g rea t a t ension wtll ca us e excessive
b
rush a nd co mmut ato r •. vear. To change t he
t ension, t wi st t he spri ng at t he ho lder with l ong-
n osed pliers.
W
orn b rushes should be r ep la ced .