HARDI-EVRARD ALPHA PLUS 4100 - Spraying Circuit Troubleshooting; Pump Priming and Foam Issues; Admixture and Spraying Accuracy

ALPHA PLUS HARDI NOVA
FF AA UU LL TT SS II NN OO PP EE RR AA TT II OO NN
CHAPTER
66-
10
Incorrectly positioned valves
Intake filter blocked
Air taken in pump
- Check positions of valves
- Clean filters
- Check connections and seals.
- look into pump maintenance (adjustment) or air taken in at pump
- re-fit plugs
Excessive agitation
- Use an anti-foam additive
- Reduce the speed of pump
- Air taken in the piping
- Do not use agitation
PROBLEMS
SOLUTIONS
PROBLEMS
SOLUTIONS
66 -33 SS PP RR AA YY II NN GG CC II RR CC UU II TT
66-
33
-
11
PPUUMMPP DDOOEESS NNOOTT PPRRIIMMEE
66-
33
-
22
FFOOAAMM FFOORRMMSS
66-
33
-
33
NNOO AADDMMIIXXTTUURREE OOFF PPRROODDUUCCTTSS
66-
33
-
44
IINNCCOORRRREECCTT SSPPRRAAYYIINNGG
Incorrectly positioned valves
Insufficient pump delevery
Suction filter clogged
- Check positions valves.
- Accelerate the pump
- Clean suction filter
- Check connections and seals
PROBLEMS
SOLUTIONS
Suction and delivery filters clogged
Faulty pump
Crushed piped
Foreign body at suction end
Air taken in
Pressure drop
Pressure increase
- Clean filters
- Check turbine and adjustments.
- Replace pipe
- Clean suction circuit
- Tighten the corresponding connections
- Check the pipe porosity.
- Check seals - Check filters - Check the valves - check nozzles wear-
check spray pressure gauge - check speed rotation pump
- Position valve N° 3 on ‘’No agitation’’
- Nozzles blocked- filters blocked
- Check the pressure gauge and the pipe of pressure gauge.
PROBLEMS
SOLUTIONS