Tennant EC-H2O T12, Service Information Manual, Page: 171 / 178

T12 Service Information 9009917 (12-12)
5-39
SERVICE
TESTING ec-H20 PUMP
1 . key off . disconnect ec-h2o pump outlet hose .
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2 . fill the solution tank .
3 . Connect a temporary outlet hose to the pump . The
hose must be long enough to reach a 5 gallon bucket .
4 . enter manual mode and enable the ec-h2o system .
See manual mode in the Troubleshooting section of
this manual .
5 . use a stop watch to time how long it takes to fill a 5
gallon bucket . The open flow specification for the
ec-h2o pump is 1 .35 Gpm . The pump should fill the
5 gallon bucket in approximately 3 .5 - 4 .0 minutes .
replace the pump if it takes longer than 4 minutes
to fill and the pump has an adequate water supply .
NOTE: Open flow is different than system flow and should
not be used for scrubbing mode water consumption calcu-
lations.
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for Safety: before leaving or servicing machine, stop
on level surface .
ADjUSTING ec-H2O FLOW RATE
See Configuration Mode in the Troubleshooting section of
this manual.