3 before starting the cleaner – Nilfisk-ALTO NEPTUNE 1 User Manual
Page 7

5
1)
Options / model variants
Original instruction
NEPTUNE 1, NEPTUNE 2
NEPTUNE 2 Special
0
300
CUT OUT
1
°F
210
80
85
°C
175
105
120
60140
70
160
90
195
100
30
40
50
0
2%
1%
3%
4%
2.2 Operating
elements
1. High pressure hose reel
1)
2. Top cover release
3. Cannister for detergent
4. Cable
hook
5. Spray
lance
6. Supply water connection
7. Spray lance storage
8. Hose 
hook
9. Tank filler for fuel
10. High pressure hose connection 
for machines without hose 
reel
11. Control panel
12. Power ON
13. Fuel low
14. Nilfisk-ALTO AntiStone low
1)
15. Service interval due/expired
16. Boiler overheated
17. Flame sensor is sooted
18. Main switch
19. Temperature controller
20. Detergent metering knob
1)
3 Before starting the cleaner
3.1
Setting up the cleaner
Every fuel-burning appliance, 
such as pressure washers, de-
pends upon a proper mix of fuel 
and air (by weight) for proper 
combustion. Therefore some 
adjustment of the air regulation 
to the burner may be necessary 
to take account of altitude and 
the resulting air pressure. This 
is true whether your fuel is Ker-
osene or Diesel.
Your Nilfisk-ALTO hot water 
pressure washer was thor-
oughly tested and adjusted for 
optimum performance before 
it left our factory. The factory is 
located at approximately 140m 
(450 ft) above sea level, and the 
combustion settings are optimal 
for that elevation. 
If your location is higher than 
1200m (3900 ft) above sea 
level, your burner may require 
re-adjustment for proper per-
formance and best fuel econ-
omy. Contact your Dealer or 
Nilfisk-ALTO for assistance.
3.2 Before use
1. Before using the cleaner for
the first time, check it care-
fully to detect any faults or 
damage.
2. Run the machine only when
it is in perfect condition.
3. The slope on which the high
pressure cleaner is placed 
must not exceed more than 
10
o
in any direction.
See fold-out page at front of these 
operating instructions.
3.3
Fill up detergent tank
1)
1. Fill up detergent tank with
prediluted detergent.
Capacity see chapter 9.4 Tech-
nical Data
Max 10
°
