Troubleshooting; Technical Data - Nilfisk-ALTO CONTRACTOR DIESEL Instruction Manual

14.0 Troubleshooting

Fault
The engine fails to start
Working pressure too high
Working pressure
too low
Irregular working
pressure
In suction mode:
No working pressure
The burner does not
ignite
Should faults occur other than those mentioned above, please contact the nearest Nilfi sk-ALTO service
organization *) IMPORTANT NOTE: To avoid damage to the electronic systems, the battery connecting
cables must be removed when recharging the battery.

15.0 Technical data

Model
Pump pressure, max.
Water volume at min/max pressure
Max. temperature of inlet water
Heating power
Nozzle, spray angle
Self-priming, max. lift
Engine
Rated effect
Start system
Battery
Diesel consumption, max. pressure
Fuel consumption at 60°C/140°F
"Jerry-can", capacity
Sound power level (L
WA
Sound pressure level (L
1
) Delta t= 52°C/126°F
This machine has been manufactured in accordance with the EMC directive 89/336/EEC inclusive of subsequent
amendments.
Specifi cations are subject to alterations.
48
Cause
Insuffi cient diesel supply
Battery run down
Fuse blown
The pump is frozen
Nozzle partly blocked
Valve for regulation of
water volume is not
adjusted to max pressure
Nozzle worn
Motor speed too low
Air in the pump
Inlet fi lter/fi lter blocked
Insuffi cient water supply
from the water works
Excessive suction head
or excessively hot water
Nozzle partly blocked
Nozzle blocked
No water
Unloader (recycling valve)
frozen
High pressure hose/
spray lance frozen
Insuffi cient fuel supply
Fuel fi lter blocked
1 )
) of the machine measured in accordance with ISO 3746: 112 dB(A).
) measured in accordance with ISO 11202 [DISTANCE 1m] [FULL LOAD]: 100 dB(A).
PA
Repair
Refi ll diesel tank.
Recharge the battery*)
Exchange fuse. See section 3.0.
Let the pump thaw.
Clean the nozzle. See section 12.6.
Open fully the valve for regulation of
water.
Turn counterclockwise.
Replace nozzle.
Contact Nilfi sk-ALTO service technician.
Repeat the venting procedure.
Clean the fi lter. See section 12.1.
Change to a water supply with greater
output. If this is not possible; turn the
valve for regulation of the water volume
clockwise, until the machine works smoothly.
Read section on suction mode (8.4).
Clean nozzle. See section 12.6.
Clean nozzle. See section 12.6.
Check the water connection.
Allow the machine to thaw.
See section 10.0.
Allow the high pressure hose/
spray lance to thaw.
Refuel.
Clean the fi lter. See section 12.4
CONTRACTOR DIESEL
bar/psi 180/2610
l/min-USgpm 20,5/19 - 5.42/5
°C/°F 35/95
kW/Kcal 115/98.200
degrees (05) 15/65
m/ft 5/16.5
Ruggerini MD 151
kW/hp 12/16.3
Electric start
V/Ah 12/50
l/h-USgph 3.0-0.79
l/h-USgph 7.5-1.98
l/Usg 20/5
EN
EN