Graco EM 390 - Troubleshooting Guide - Motor and Pump; Motor Operation Issues; Pump Output and Stroking Problems


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 

  
0 2&%5$& 4)& 2*3, 0' 3&2*053 #0%*-9 */+529 */$-5%*/(
'-5*% */+&$4*0/ 31-"3)*/( */ 4)& &9&3 02 0/ 4)& 3,*/ 02
*/+529 '20. .06*/( 1"243 "-7"93 '0--07 4)*3 120$&;
%52& 7)&/ 905 3)54 0'' 4)& 312"9&2 7)&/ $)&$,*/(
"%+534*/( 02 $-&"/*/( 4)& 3934&. "/% 7)&/ $)"/(;
*/( 312"9 4*13
 /("(& 4)& (5/ 3"'&49 -"4$)
 52/ 4)&  37*4$) 
 /1-5( 4)& 107&2 3511-9 $02%
 *3&/("(& 4)& (5/ 3"'&49 -"4$) 0-% " .&4"- 1"24
0' 4)& (5/ '*2.-9 40 4)& 3*%& 0' " (205/%&% .&4"-
1"*- "/% 42*((&2 4)& (5/
 /("(& 4)& (5/ 3"'&49 -"4$)
 1&/ 4)& '-5*% 12&3352& %2"*/ 6"-6& "/% -&"6& *4
01&/ 5/4*- 905 34"24 4)& 312"9&2 "("*/
         
         
      -003&/ 4)& 4*1
(5"2% 2&4"*/*/( /54 02 )03& &/% $051-*/( 40 2&-*&6&
12&3352& (2"%5"--9 07 $-&"2 4)& 4*1 02 )03&
)&$, &6&294)*/( */ 4)& $)"24 #&'02& %*3"33&.#-*/( 4)& 312"9&2

 
-&$42*$ .0402 70/4 25/ 07&2 $02% 02 &84&/3*0/ $02% 5/1-5((&%
02 %"."(&% 02 #5*-%*/( $*2$5*4 #2&",&2 02
'53& )"3 42*11&%
)&$, 2&3&4 02 2&1-"$&
0402 06&2-0"% 37*4$)

 )"3 01&/&% /1-5( 107&2 3511-9 $02% 2&-*&6& 12&3352& "-;
-07 .0402 40 $00- %&$2&"3& 12&3352&
2&3352& 3&44*/( *3 400 -07 /$2&"3& 12&3352&
2&3352& $0/420- '20:&/ 02 %"."(&% #9
06&212&3352*:"4*0/
29 40 4)"7

 02 2&1-"$& 12&3352& $0/420-
-&$42*$ .0402 34013 7)*-& 312"9*/( 07&2 $02% 02 &84&/3*0/ $02% 5/1-5((&%
02 %"."(&% 02 #5*-%*/( $*2$5*4 02 '53& *3
#-07/
)&$, 2&3&4 02 2&1-"$&
0402 06&2-0"% 37*4$)

 )"3 01&/&% /1-5( 4)& 107&2 3511-9 $02% 2&-*&6& 12&3352&
"--07 .0402 40 $00- %&$2&"3& 12&3352&
2&3352& 3&44*/( *3 400 -07 /$2&"3& 12&3352&
12"9 4*1 *3 1-5((&% &.06& "/% $-&"/
!20/( 491& 0' &84&/3*0/ $02% 3& ."8*.5.  .  '4  7*2&3  .. 
("5(& .*/*.5. ("5(& (205/%&% &84&/3*0/
$02%
-&$42*$ .0402 25/3 #54 -07 1"*/4
054154 02 /0 1"*/4 054154 
 15.1 *3 /04 3420,*/(
*340/ #"-- $)&$, /04 3&"4*/( &26*$& 4)& 15.1 && 1"(& 
&& 4)&  04 &/05()
1"*/4 12&3352& 0/ 1"(&  "-30
*340/ 1"$,*/(3 "2& 702/ 02 %"."(&% &1-"$& 4)& 1*340/ && 1"(& 
/4",& 6"-6& #"-- $)&$, /04 3&"4*/( &26*$& 4)& 15.1 && 1"(& 
 5.1 *3 '20:&/ )"7

2&3352& $0/420- '20:&/ 02 %"."(&% #9
06&212&3352*:"4*0/

29 40 4)"7

 02 2&1-"$& 12&3352& $0/420-
2*6& "33&.#-9 %"."(&% &1-"$& 4)& %2*6& )053*/( && 1"(& 
*31-"$&.&/4 15.1 702/ 02 %"."(&% &1-"$& 4)& %*31-"$&.&/4 15.1 && 1"(& 
12"9&2 *3 /04 12*.&% 2*.& 4)& 312"9&2 && 1"(& 
-&$42*$.0402-"#0237)&/34"24*/(
"/% 42*13 #5*-%*/( $*2$5*4 #2&",&2
'53& 02 .0402 06&2-0"% 37*4$)
4"24 37*4$) )"3 '"*-&% &1-"$& 4)& 34"24 37*4$) && 1"(& 
0402 $"1"$*402 )"3 '"*-&% &1-"$& 4)& $"1"$*402 && 1"(& 
0402*3*/$022&$4-97*2&%'0260-4"(&#&*/(
53&%
&2*'9 7*2*/( && 1"(& 