HUGH CRANE (Cleaning Equip ent) Ltd –
COMMANDO
®
5050 Page 9
e) Open the high-pressure bleed valve and adjust the throttle lever to the ini u
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 s oothly. Adjust the throttle to approxi ately
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 re aining air
fro 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 fro 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 volu e 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 abnor al sy pto s occur
during operation it should be investigated i ediately.
Likely causes include:
i) A lack of water entering the unit causing air to be drawn into the pu p.
ii) A blockage of the ain inlet filter causing water starvation at the pu p.
iii) The inlet water valve between tanks and pu p not fully open.
iv) Leaking seals or da aged 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
