Check cleaning solution
Inspect the cleaning solution container to assure adequate
level of the proper cleaning solution desired, and also that it is
the correct cleaning solution for the job.
Connect hoses to machine
Connect the water supply hose to the water input connec-
tion on the front of the machine. Before connecting the hose to
the customer’s water supply, it is suggested that the faucet be
turned on to flush out any debris that may have accumulated,
and also to assure an adequate amount of water is supplied from
the faucet.
Take the vacuum and pressure hoses into the building to
the furthest point that you are going to clean. Connect the hoses
to the cleaning tool, and then connect the vacuum hose to the
vacuum connection on the waste tank lid and the pressure hose
to the pressure out connection on the front of the machine.
Start the engine
Secure the doors of the van so they will not close during
machine operation. Turn the key switch to the “Start” position, and
hold until the engine starts. (If the engine does not start within 5
seconds, release the key and wait 10 seconds before trying to
restart). When the engine starts, release the key switch. If the
engine stalls, check the oil level to assure proper level, and then
repeat the starting procedure. This engine is equipped with an oil
safety shut down that will stop the engine if proper oil level or
pressure is not up to a safe level. If, after 2 or 3 starting
attempts, the engine still stalls, check the oil level then con-
tact your distributor or local service center for assistance.
DO NOT CONTINUE TO OPERATE THE MACHINE OR SERI-
OUS ENGINE DAMAGE WILL RESULT THAT IS NOT COV-
ERED UNDER WARRANTY. Allow the engine to run at a low rpm
for a couple of minutes to warm up, and then move the throttle
lever to the fast position.
Turn on the water pump
Turn the Pump Clutch switch on to engage the water pump
for pressure. The water pressure gauge should begin to register
pressure within 5 to 10 seconds. If the gauge does not begin to
read pressure, turn the Pump Clutch switch to the off position and
refer to the troubleshooting section. Do not continue to operate
the pump without pressure showing on the pressure gauge
or serious pump damage will occur that is not covered under
warranty. Pump seal damage will occur.
FOR WATER EXTRACTION ONLY, DO NOT TURN ON THE
WATER PUMP!
Set water pressure
Set the water pressure at the desired pressure for the
cleaning job. Adjust the water pressure by turning the pressure
regulator knob on the front of the machine. Suggested water
pressure setting for carpet cleaning is around 400 psi and hard
surface cleaning around 1000 psi, or as recommended by the
tool manufacturer. When setting the pressure for cleaning uphol-
stery, check the recommended pressure for the specific tool you
are using.
Set cleaning solution level
Make sure that the hoses for the cleaning solution are fully
inserted into the cleaning solution bottle. Turn the solution selec-
tor valve to PRIME and observe that there is flow thru the solu-
tion meter. If no flow is observed thru the meter within 20-30
seconds, the solution system pump may need to be primed. To
prime the system, remove the black hose from the solution bottle
and insert it into the vacuum hose connection on the waste tank.
Using your hand, block off the vacuum port to create a suction
on the hose. The cleaning solution will then begin to flow thru the
meter. Insert the hose back into the solution bottle.
Adjust the cleaning solution level by turning the solution
selector valve to ON then activate the cleaning tool and adjust
the amount of cleaning solution by turning the black adjustment
knob until the desired amount of cleaning solution is registered
on the meter.
Set Thermostat
Set the thermostat to the desired temperature for the job.
Please Note: There must be at least 8”hg vacuum on the
gauge for the diverter system to work properly. This is usual-
ly achieved when the vacuum hoses are connected to the
machine and the cleaning tool. Allow the machine to run for sev-
eral minutes with the vacuum hose connected to the machine
and the cleaning tool to preheat the water. To maintain maxi-
mum cleaning temperatures it is recommended that the total jet
orifice size on the cleaning tool does not exceed #4 (example: 2
- # 2 jets or 4 - #1 jets).
Water Extraction
When the need to perform water extraction only arises, DO
NOT TURN ON THE WATER PUMP SWITCH! Adjust the ther-
mostat to it lowest position. The diverter system is activated by
the water pump switch and the thermostat.
Complete the cleaning job
After the previous steps have been completed, continue
with the normal cleaning procedures as required by the job.
During operation, occasionally check out the gauges on the
machine to assure that the settings that were previously done
are still correct, i.e. water pressure and temperature, engine rpm,
solution metering, etc. Adjust as necessary.
El Diablo HE (Heat Exchange) Truck Mount
5
Operating Procedures
(continued)
