JMB-E
:
REV
0
DiBO
n.v.
76
4.5. Put into operation
Put the high pressure cleaner as much as possible in a horizontal position.
Check the water supply - oil level engine & pump - sufficient fuel in the tank. Put the fuel valve open (if available).
Connect the spray gun with the high pressure hose (without spray lance) to the high pressure cleaner.
Open the fuel tap (if present). Turn the main switch to position ON or turn on the key contact to position START.
Starts the engine with key (electrically) or with the start rope (manually) until the engine starts.
First choke @ cold start (@version with petrol engine)! Put the choke in the open position while the engine is
warming up. After a longer period of non-use or at the first start of the engine, run at low speed and without load
during 20 seconds! The motor goes automatically to idle speed (via ETC) at not operating the spray gun.
Aim the spray gun to the free space and operate the spray gun until the water jet is completely de aerated (+- 30
sec.). Turn the operating switch/key contact to position OFF. Connect the spray lance to the spray gun.
Start the engine again and give time to reach operating temperature. Next, close the choke lever again(@version
with petrol engine). When the spray gun will be released, the cleaner will go in automatic speed control.
The engine will turn at idle speed by means of the pressure control.
Never turn the motor without an air filter, since these lead to a quick wear of the motor.
4.6. Turn off the cleaner
Do not choke the carburetor, to stop the engine. Turn the key contact to the OFF position or move the operating
switch to the OFF position. Aim the spray gun in to the free space and operate the spray gun until the water jet is
completely de aerated (+- 30 sec.). Close the fuel tap (as wished).
4.7. Pumps HT
There must be present a pre- pressure (pump) at HT pumps (pumps with high temperature).
The pre- pressure (pump) must provide for sufficient flow of water to feed the pump and to occur cavitation.
Cavitation is the phenomenon that in a moving fluid the local pressure is going to be lower than the vapour pres-
sure of the fluid. Because of this mist bells will arise who can implode with high power in the pump and could
cause damages. For all these applications at high temperature, it is ABSOLUTELY ESSENTIAL to feed the pump
with positive pressure (at least 3 bar) and with a sufficient quantity of water.
4.8. Scope of application
Efficient high pressure cleaning is achieved by following a few guidelines combined with your own experiences.
Each cleaning job is different and specific, therefore contact DiBO for the best solution in your application sector.
Using cleaning products (if applicable): the surface to clean should be sprayed so the product can act during
some time (do not let it dry!) before cleaning with high pressure jet.
Cleaning agents can increase the cleaning effect if they are used correctly!
Always follow/consider the safety instructions of the used product!
Cold water (high pressure) cleaning: removal of (mild) impurities/pollution and rinsing.
Hot water (high pressure) cleaning (if applicable): the cleaning effect will be such improved through increasing the
temperature (set the temperature experimentally according to the application).
Cleaning via lance with rotating head (if applicable): cleaning method to remove tough layers of dirt.
Cleaning using a steam lance (if applicable): this steam function (by overheating water) is used in ‘sensitive’ clean-
ing applications (eg: damage sensitive surfaces) where there is stubborn dirt (eg: degreaser) is removed by using
steam.
Please note: this application has high cleaning temperatures and requires various safety measures!
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