Spray System
RD 12/RD 16
wc_tx000670gb.fm
66
8.3
Checking the Pump Timer Module
Background
The pump timer module is fed power in two locations:
Via key switch on pink wire #01
Via spray system switch on pink wire #18
Procedure
Follow the procedure below to check power to the pump timer module.
1. Remove the control console cover
(a)
.
2. Disconnect the pump timer module connector
(b)
.
3. Measure the voltage between pink wire #01 (connector pin 1) and ground.
Is more than 9.8V measured?
4. Place the key switch in the ON position.
5. Place the spray system switch in the ON position.
6. Measure the voltage between pink wire #18 (connector pin 11) and ground.
Is more than 9.8V measured?
7. Reconnect the pump timer module connector.
8. Measure the voltage between pink wire #18 (backprobe connector pin 6) and
ground.
Note:
The voltage will be intermittent depending on the setting of the pump timer dial.
Is more than 9.8V measured
?
9. Re-install the control console cover.
The pump timer module has now been checked.
Yes ____
No ____
Continue
Repair or replace pink wire #1.
Yes ____
No ____
The pump timer module is receiving power
and should be working; continue.
Repair or replace pink wire #18.
Yes ____
No ____
The pump timer module is functioning.
The pump timer module has failed;
replace it.
Summary of Contents for RD 12A
Page 1: ...5000192242 02 0912 5 0 0 0 1 9 2 2 4 2 Repair Manual Roller RD 12 EN...
Page 15: ...RD 12 RD 12A Safety Information wc_si000302gb fm 15 1 4 Label Locations X FF...
Page 21: ...RD 12 RD 12A Safety Information wc_si000302gb fm 21 Notes...
Page 25: ...RD 12 RD 12A Operation wc_tx000865gb fm 25 53 47 54 61 50 62 55 wc_gr004114 56...
Page 29: ...RD 12 RD 12A Operation wc_tx000865gb fm 29 wc_gr002951 N F R 55 42 44 54 10 15...
Page 119: ...RD 12 RD 12A Disassembly Assembly wc_tx000671gb fm 119...
Page 120: ...Schematics RD 12 RD 12A wc_tx001073gb fm 120 10 Schematics 10 1 Hydraulic Schematic...
Page 122: ...Schematics RD 12 RD 12A wc_tx001073gb fm 122 10 4 Electrical Schematic A RD 12A...
Page 124: ...Schematics RD 12 RD 12A wc_tx001073gb fm 124 10 6 Electrical Schematic B RD 12A...
Page 126: ...Schematics RD 12 RD 12A wc_tx001073gb fm 126 10 8 Electrical Schematic RD 12...
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