PS Magazine - MAY 1982

PS, The Preventative Maintenance Monthly

ISSUE 354

MAY 1982

PS Magazine - MAY 1982 - Page 6 of 35
First, Check Ground
Make surE, fiRst of all, that thE gagES ArE grOUndED rIgHt. YoU cAN ±sE A
multim²t²R foR that³
1.
Set The multimeter swItch To
"Xl
OHMS" and zero the ±eter.
ConnecT one probe To the
suRface of the pAneL ANd the oTheR
probe To T²e gAge's gRound teRm³nA´.
µf the meter reAds ´ess thAn
³
ohm, youR gAge ³s grounded to The paneL.
´F thE rEADµng µS ¶orE t·aN
1
oH¶, rE¶OvE tHE gAgE aND CLEan t·E SUrFA¸ES
whER¹ tHE gAgE COnNE¸tS tO tHE pANEl grO±nD. ºr yO± CAN OrDEr AND ±SE l²AD,
AS A gRO±Nd WIrE³
»tta¸h onE EnD OF t·E lEaD tO EItHEr gAgE ¶O±NtINg SCrEW AND tHE OtHEr End
to t·E hoL² on t·E pANEl's SiDE.
¼SE SCrE½,
N²N 5305³00´984´6193;
¾O¸KWASHEr,
NSN 53µ0-00-045´3299¶
and nUt,
NSN 5310´00·934´9757¶
tO INStAL¾ It¿
ÀEiNStalL thE gAgE ANd mAKE t·E mEt²r CH²CK AgAIn.
¸
¹GrOund tO Engine
º» B¼
f´µ
"-
.
'½¾¿À"Á
±
ÂÃ:.Ä
ÁOW t·At tHE gAgE IS grO±NDED tO tHE pANE¾- ¶AKE S±rE tHE paNE¾'S grO±NDEd
tO tHE ENgINE. J±St bECA±SE It ¾OOKS grO±NDED IS NOt ENO±gH¿
³¶
D³sconnecT The engine gRound
cAb´e fRom The eng³ne d³sconnecT.
·¸
Check ThAT pins ¶b" And ¶e"
ARe noT ´oose· coRRoded oR dAmAged¸
¹f the mu´Timeter ReAding ³s
moRe Than
³
ohm· c´eAn or repA³r the
engIne grouNd cAb´e connecTIon AT
The ºul´.
»epeAT sTeps
3
And
»
foR p³n
»econNect the eng³ne ground
cAb´e connecToR to the eng³ne And
d³sconnecT The gRound At the hu´´.
Connect one pRobe To the
e¼gine ground cAb´e And tºe otheR
probe To bARe metA´ on The eng³ne. µf
Tºe reAding is moRe ThAn
³
ohm½
clean or RepaiR The engine gRound AT
The engine.
ÂOW tHAt tHE EngINE IS grO±NDED tO tHE H±¾l, ¶AKE S±rE thE
Ã
gAgE pANEL iS
grO±NDED to t·E ·±¾L. ÄF tHE ¶EtEr rEADS ¾ESS tHAN
l
OH¶, COGNE¸t oNE probE to
t·E bArE ¶EtA¾ OF t·E H±lL AND tHE OtHEr prObE tO t·E bArE mEtAl OF thE pANEL³ ´F
t·E rEADiNg iS
OrE tHaN
l
OH¶, rE¶OvE aND ¸LEAN tHE pANELÅtoÅ·±l¾ gro±Nd
StrÆp.
¼N¾ESS t·ErE IS A CoNtiN±O±S grO±Nd FrO¶ pANEl tO H±L¾ tO ENgINE, yo± ¸annot
tElL IF yO±r gagES Ar² DEFE¸tIvEÇ
Å


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