Crafco EZ 500 Series II, Руководство пользователя

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EZ 500 Series II Melter Part Manual
Chapter 8 Troubleshooting
©2019 by Crafco, Inc. All Rights Reserved………………...………………………………..……………...Troubleshooting 8-31
Step Possible Cause If . . .
5 Is there 12Vdc between the blue wire on
terminal #12 of pump relay and the black
wire on terminal #13 of pump relay?
NOTE : Trigger must be actuated or pump
switch in “ON STANDARD” position during
this test.
•
Yes, check for loose or broken wire
between terminal #12 and the terminal
block.
•
No, go to Step 5a for Electric Hose.
•
No, go to Step 5b for Standard Hose.
5a Is there 12Vdc on red wire terminal #8 of
pump relay and black wire terminal #13?
•
Yes, replace relay.
•
Go to Step 6.
5b Is there 12Vdc on red wire terminal #4 of
pump relay and black wire terminal #13?
NOTE: This only applies to “ON
STANDARD” position of pump switch.
•
Yes, replace relay.
•
No, go to Step 7.
6 Is there 12Vdc between red wire labeled
RED-1 upper terminal block and a nearby
ground source (black wire)?
•
Yes, check for loose or broken wire
between terminal block and terminal #8.
•
No, go to Step 6a.
6a Is there 12Vdc between red wire labeled
RED-4 upper terminal block and nearby
ground source (black wire)?
•
Yes, replace terminal block.
•
No, go to Table 8-17 Mixer Electrical
Troubleshooting (continued) steps 9-10a.
7 Is there 12Vdc between red wire labeled
RED-9 on top right hand terminal of pump
switch and a nearby ground source?
•
Yes, check for loose or broken wire
between pump switch and pump relay.
•
No, go to Step 7a.
7a Is there 12Vdc between purple wire labeled
PRP-3 on center right hand terminal of pump
switch and a nearby ground source (black
wire)?
•
Yes, replace pump switch.
•
No, go to Step 8.
8 Is there 12Vdc between purple wire labeled
PRP-3 top left terminal of hose selector
switch and nearby ground (black wire)?
•
Yes, check for loose or broken wire
between hose selector switch and pump
switch.
•
No go to Step 8a.
8a Is there 12Vdc between pink wire labeled
PNK-3 center left terminal of hose selector
switch and nearby ground (black wire)?
•
Yes, replace hose selector switch.
•
No, go to Step 9.
9 Is there 12Vdc between pink wire labeled
PNK-3 upper terminal block and nearby
ground (black wire)?
•
Yes, check for loose or broken wire
between terminal block and hose selector
switch.
•
No, go to Step 9a.
Table 8-28 Pump Electrical Troubleshooting (continued)