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TROUBLESHOOTING YOUR HYDROSEEDER
®
(CONTINUED)
2. Plugging or clogging (Continued):
B. If the recirculation system is not working:
1. Disengage (turn off) the slurry pump and stop engine.
2. Remove clamps attaching recirculation valve assembly.
3. Slide rubber seals back and remove valve assembly.
4. Check valve assembly, recirculation nozzle and recirculation pipe going into
tank. Clear any obstructions.
5. Replace valve assembly and slide seals back into place. Lubricate outside of
seals before clamping in place.
6. Replace clamps.
C. Obstruction in slurry pump can be indicated by a drop in pressure. If a drop in
pressure is accompanied by a frothy or whitish discharge stream, blockage is in
the suction line or sump area. To clear the slurry pump:
1. Disengage (turn off) the slurry pump and stop engine. Close suction shutoff
valve.
2. Loosen suction pipe clamps. If there is material in tank, stuff a rag into the
suction piping.
3. Remove suction pipe clamp closest to slurry pump.
4. Remove elbow and inspect slurry pump inlet.
NOTE: If no water comes out of the slurry pump or the suction line when the
clamps are removed, the obstruction is in sump area.
5. Reach into slurry pump and remove obstruction. If it is jammed, the pump
suction cover may have to be removed.
6. Reassemble, removing rag plugging the suction piping and reopen the suction
shutoff valve.
D. Obstruction in sump area, which is located at the bottom of the tank on the inside
where the suction pipe is attached. Three methods to remove an obstruction in the
sump area are as follows:
1. Clear the sump by backflushing through the discharge plumbing with the water
supply hose. This is the easiest method.
2. Remove the tank drain plug and run a long pole through the opening and into
the sump area. Remove the obstruction and replace the drain cap.
3. Use a pipe or pole through the loading hatch opening to dislodge the
obstruction.
Do not turn the shaft backward with a pipe wrench. This will
unscrew pump impeller from pump shaft. Consequently, when the
slurry pump is engaged (turned on), the pump impeller will screw onto pump shaft with
a force great enough to break pump impeller. Failure to comply could result in minor
or moderate personal injury. Failure to comply could also result in product or property
damage.
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