Magnum C3C Spreader Sprayer
Operator Manual
Refer to the cover page for restrictions regarding
Page 54
reproduction or disclosure of this material.
Septenber/08
Failure Mode
Check
Corrective Action
Open the drain valve and
increase the engine speed to
3450 rpm. If the pump is
primed, there will be flow.
If there is no flow, allow the air
trapped in the system to
escape. Close the valve
when pressure and flow
begin.
Check the relief valve.
If there is no flow into the tank
through the relief valve, the
relief valve may be obstructed
or has failed. Clean, repair, or
replace the relief valve
according to the Maintenance
and Repair manual.
If there is flow into the tank
through the relief valve, check
the pump control valve and
nozzles.
Open the valve by manually
operating the lever. Test the
valve. Then, remove one of
the nozzles and strainers and
test the valve. Clean or
replace the nozzles or control
valve or the cable.
If there is flow into the tank
from the relief valve,
disconnect the line from the
relief valve to the control
valve.
If there is no flow from the
relief valve, the valve has
failed in the bypass position.
Repair or replace the relief
valve according to the
Maintenance and Repair
manual.
If there is no flow into the tank
from the relief valve, check
the suction strainer.
Remove and clean the
strainer.
If there is flow from the relief
valve output, disconnect the
line from the relief valve to the
control valve at the control
valve.
If there is no flow at the
control valve, the line is
obstructed or damaged.
Clean or replace the line
according to the Maintenance
and Repair manual.
Sprayer has no output.
If there is flow from the relief
valve to the control valve, the
control valve is obstructed or
failed.
Check, clean, repair, or
replace the control valve
according to the instructions in
the Maintenance and Repair
manual.
Table 8. Sprayer Does Not Operate (sheet 1 of 2)
