Great Plains TSF660 Operator Manual - Manual (Page 43)

9/1/2009 500-644M
41 Troubleshooting
Troubleshooting
Problem Problem Area Specific Checks Solutions
Pressure
decreasing Between gauge
and liquid sup-
ply Pump wearing Rebuild or replace pump
Plugged suction or pump to pres-
sure head hose Clean hose and reduce cause of clogging
Plugged Whirlfilter Clean out Whirlfilter
Plugged gauge Remove the quick disconnect fitting and
flush gauge protector
Pressure
fluctuating Between pump
outlet and liquid Check suction hose & fittings for
air leaks. Air in system is indicated
by buffs of air at nozzles Remove obstruction from clogged area
Vortex in tank suction Align agitators properly
Cracked pump housing Replace pump housing
Pressure
increasing Between gauge
and nozzle Nozzle screens clogged Clean screens
Nozzle orifices plugged Remove material with soft brush or air
Boom hoses becoming clogged Remove obstruction from clogged area
Boom hoses pinched Use cable ties to position hose so it will
not kink
Pressure cannot
increase Pump or electric
ball valve From nozzle charts check liquid
demand against pump capacity
(nozzle requirement + agitation
requirement) Reduce swath width by nozzle reduction;
install smaller nozzles and drive at a lower
rate of speed
Electric ball valve or gauge not
functional Replace or repair
Pressure adjust switch faulty Test switch & replace if faulty
Fuse is out in control box Replace fuse
Manual pressure adjustment valve
not all the way open Open the manual pressure valve all the
way and allow the electric ball valve to
govern the pressure
No pressure Plumbing Tank shut-off valves off Make sure all tank shut-off valves are open
Loose fittings Tighten fittings so pump can prime
Collapsed suction hose to pump Replace hose
Obstruction in suction hose or tank Remove obstruction
Pump not primed Turn off valve after Whirlfilter. Turn agita-
tion/flush valve to “flush” or “off”. Turn off
chemical inductor valve. Open valve under
tank sump. Turn main valve to “main tank”.
Open Whirlfilter clean-out valve to prime
pump. When water comes out of valve,
pump is prime.
No pressure Pump Hydraulic pump running in the
wrong direction Switch hydraulic hoses in the tractor outlet
PTO pump coupler loose Tighten PTO coupler
Pressure cannot
decrease Pump or electric
ball valve Tank agitation restricted Check that the agitator valve is open and
that the liquid is being agitated