Troubleshooting – Great Plains TSF1290 Operator Manual User Manual
Page 64

500-641M
05/10/2012
60
TSF1080, TSF1090, TSF1280 & TSF1290
Great Plains Manufacturing, Inc.
Troubleshooting
Problem
Problem
Area
Specific Checks
Solutions
Pressure
decreasing
Between
gauge and liq-
uid supply
Pump wearing
Rebuild or replace pump
Plugged suction or pump to pres-
sure head hose
Clean hose and reduce cause of clogging
Plugged Whirlfilter
See “Clean-out the solution Whirlfilter®” on
page 63.
Plugged gauge
Remove the quick disconnect fitting and flush
gauge protector
Pressure
fluctuating
Between pump
outlet and liq-
uid
Check suction hose & fittings for
air leaks. Air in system is indi-
cated 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 elec-
tric 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
No pressure
Pump
Hydraulic pump running in the
wrong direction
Switch hydraulic hoses in the tractor outlet
PTO pump coupler loose
Tighten PTO coupler