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9.0 Operating instructions EN
d)Start the machine, if stopped, and activate the
spray handle to start the burner.
IMPORTANT: For safety reasons it is important
that instruction (a), above, always be followed!
Note: If the engine stops immediately after
having been started up, it should be checked
whether the throttle control is set at idle speed.
If it is, the throttle control should be adjusted to
full speed.
9.4 Adjustment of pressure and
water volume
High pressure/volume
In order to achieve maximum working pressure
the pressure adjustment knob (pos. 27) on the
lance should be turned all the way in (clockwise
until completely closed) and the volume
adjustment knob (pos. 22) situated on the front of
the pump should be turned all the way out
(counterclockwise). The water volume is infinitely
variable up to the max. capacity of the machine.
Low pressure/volume
To reduce the working pressure, turn the pres-
sure adjustment knob (pos. 27) on the lance,
counterclockwise until the desired result is
achieved. To reduce the water pressure AND
volume, release the trigger (pos. 28) or stop the
machine. Turn the volume adjustment knob on
the front of the pump, clockwise, reducing water
flow and volume. Test the results, and repeat
the process until you have achieved the results
you wish. By varying the settings of the pres-
sure adjustment knob on the lance, and the
volume adjustment knob on the pump, you may
obtain pressures from 4 bar (60 psi) to 180 bar
(2600 psi), and water flows from 6 l/min. (1.6
US gpm) to 20.5 l/min. (5.4 US gpm).
9.5 Shutdown
WARNING: Danger of burn
Do not disconnect the high pressure hose until
you have completed the following steps (risk of
injury):
1. Turn the thermostat (pos. 16) to the blue field.
Spray cold water until the water temperature
is under 50°C (122°F). Disconnect or turn off
the water supply.
2. Squeeze the trigger of the spray handle for a
short time to empty the system of water.
3. Stop the diesel engine. (See instructions for
the Ruggerini engine).
4. Disconnect the high pressure hose.
9.1 Start-up procedure
1. Check that the pump oil level is between the
MIN. and MAX. marks (pos. 2). Oil type:
ALTO Pump Oil 100.
2. Check the oil level on the Ruggerini engine.
Oil type: Choose oil type in accordance with
the instructions in the Ruggerini manual.
3. Run water through the inlet hose before
connecting in order to remove possible
impurities in the hose. Any water supply valve
must be fully open in order to provide suffi-
cient water supply.
4. Open the small venting cap on the ”Jerry-
can” if you intend to operate in hot water or
steam mode.
5. Turn the thermostat (pos. 16) to the blue field.
6. Start the Ruggerini engine as described in the
enclosed operating instructions. The key for
the electric start has the following 3 positions:
1 ”0” off
2 ”I” run
3 the startkey will return to position 2
when released.
7. Turn the trigger safety knob (pos. 33) to
position 0 and squeeze the trigger of the
spray handle (pos. 28) allowing water to flow
until the stream is steady.
8. When the engine is warmed up, check that
max. working pressure does NOT exceed
the maximum allowable pump pressure. This
can be taken from the pressure gauge and
must not exceed 180 bar (2600 psi). Over-
load will reduce the life of the machine. (See
section 14.0).
9.2 Cold water operation
After the starting up procedure the machine is
ready for cleaning with cold water.
9.3 Hot water/Steam operation
Hot water:
Adjust the thermostat (pos. 16) to the required
temperature, 30-95°C (86-200°F).
Steam:
a)Adjust to temperatures above 95°C (200°F)
ONLY with the trigger on spray handle
released.
b)Turn the water volume adjustment knob (pos.
22) completely in (fully clockwise).
c)Adjust the thermostat to the required
temperature, 95-150°C (200-302°F).