HUGH CRANE (Cleaning Equipment) Ltd –
COMMANDO
®
5050
Page 9
e)
Open the high-pressure bleed valve and adjust the throttle lever to the minimum
speed position.
f)
Depress the protection override button and turn the starter key fully clockwise to start
the engine. In cold weather pause the key at the pre-heat position before cranking the
engine.
g)
Once the engine has fired release the key switch and the override button when it is
running smoothly. Adjust the throttle to approximately
1
/
3
rd
of full speed. Close the
bleed valve once air free water is issuing. Then turn the 3-way valve to the
PRESSURE
position and open the spray gun or foot pedal to expel any remaining air
from the hose and lance.
NOTE: before turning the valve to the PRESSURE position ensure that the hose reel
lock is ON to prevent it rotating when pressure is applied.
g)
When air free water is issuing from the hose, the unit is ready to use.
h)
Increase the engine speed to the desired working level using the throttle. Use of the
throttle will directly affect output water volume and consequently the pressure.
DURING WORK
:
a)
Do not leave the
COMMANDO
®
5050
idling for periods in excess of 15 minutes, as
re-circulating water heats up rapidly and will eventually boil causing severe
damage to the pump.
b)
Should any vibration, fluctuation of pressure or any other abnormal symptoms occur
during operation it should be investigated immediately.
Likely causes include:
i)
A lack of water entering the unit causing air to be drawn into the pump.
ii)
A blockage of the main inlet filter causing water starvation at the pump.
iii)
The inlet water valve between tanks and pump not fully open.
iv)
Leaking seals or damaged valves etc.
AFTER WORK
a)
To stop the
COMMANDO
®
5050 decrease engine revs to idle speed and turn the
starter key to the OFF position.
Protection override
pushbutton
Engine starter
key switch
