Nilfisk PZC-M1 Mode D'emploi page 12

Fault
The machine does not start
The machine does not build
up pressure .
Unstable or too low pump
pressure .
Unsatisfactory foam quality .
Spreading of foam is not
uniform .
No spreading of foam .
No pressure air in the system .
12
Cause
Fuse blown
Power supply fault
Fuse in the wiring box of the
machine blown.
Motor overload in the wiring box of
machine disconnected.
The program does not function
correctly.
No water supply.
Direction of rotation of the pump is
not correct.
Insufficient water supply.
Strainer on inlet pipe blocked up.
Detergent not suitable.
Too low concentration of the
detergent.
Too high temperature of teh inlet
water.
Insufficient air quantity and
pressure.
Insufficient air supply to the system.
Incorrect air pressure on the
system.
Too high air pressure in the injector
(read pressure on pressure gauge.
Incorrect nozzles mounted.
The program does not function
correctly.
The non-return valve in the injector
is blocked up.
The dosing valve for detergetn is
blocked up.
Inlet valve for pressure air is not
open.
The solenoid valve for pressure air is
blocked up or defective.
Nilfisk FOOD
Remedy
Check fuse and replace, if necessary
Power supply to be checked by an
expert.
Check fuse and replace, if necessary.
Before switching on again, check
cause of disconnection.
Check the program.
Please call for assistance by JBT
Open inlet valve of machine.
Change direction of rotation of pump
in accordance with arrow on pump.
Provide sufficient water supply. Min. 1
1/4" piping.
Clean or replace filter.
Change to correct type of detergent.
Ensure sufficient detergent supply,
2-4%.
Reduce the temperature of the water.
Ensure sufficient air supply, 500 l/
min., 5 bar.
Ensure sufficient air supply, 500 l/
min., 5 bar.
Set pressure on 5 bar on the
regu lating valve.
Set pressure on 5 bar on the
regu lating valve.
Contact JBT for instructions.
Check the program. Call for JBT as-
sistance, if necessary.
Clean or replace the valve.
Clean or replace the valve.
Open inlet valve for pressure air.
Clean or replace the solenoid valve.