MASTERBLEND El Diablo HE User manual

Operator’s Manual
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Parts Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Van Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
©2014 MasterBlend, Inc. Denver, CO 80216 USA. All Rights Resevered

2Operator’s Manual
MasterBlend warrants the El Diablo HE to be free from
defects in materials and workmanship when properly operated
and maintained in accordance with our Operating and
Maintenance instructions. This warranty shall be for periods as
listed. Components, parts, and accessories furnished by other
manufacturers are warranted only to the extent of their original
manufacturers’ warranty. The warranty obligation shall extend
from the date of sale to the original purchaser or lessee only.
During the warranty period, we will either repair or replace, at our
sole option, any part found to be defective upon our examination.
This warranty does not cover normal wear items such as
hoses, filters, gaskets, quick disconnects or other parts that may
require replacement during normal use. Parts that have been
abused or damaged by neglect or freezing conditions will not be
warranted. Damage to materials and components due to the use
of improper lubricants, chemicals or deposits from poor water
quality will not be warranted. There is no warranty on pump or
valve seals and o-rings. This warranty does not cover labor, ship-
ping charges, or any other charges in connection with the
replacement of defective parts.
This warranty is for the replacement of defective parts or
workmanship only. It does not provide in any way for the
replacement of entire units due to defective parts or workman-
ship. This warranty service is an exclusive remedy and
MasterBlend will not be liable for any special, indirect, incidental
or consequential damages or injury to person or property of any
type.
Machine Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 years
(excluding paint and abuse or neglect)
Waste Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 years
(excluding paint and abuse or neglect)
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 years
(through original manufacturers’ warranty)
Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 years
(through original manufacturers’ warranty)
Water pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 years
All other components including seals, o-rings, belts, and electri-
cal components are covered for 2 years.
The above Limited Warranty Applies only to the
El Diablo HE Truckmount
Truck Mount L m ted Warranty Effect ve January 1, 2013
Congratulations and thank you or purchasing the EL
DIABLO HE truck mounted cleaning system. The EL
DIABLO HE has been designed with simplicity and dura-
bility in mind to give you many years o reliable service.
Years o experience, engineering, planning, and practical
know-how have gone into the design and manu acture o
the EL DIABLO HE. This manual is intended to in orm
you about the operation and maintenance o your new
truck mount. Please take time to read this manual to
become amiliar with the machine’s operating and mainte-
nance procedures. This will be time well spent to help give
you years o reliable service rom your EL DIABLO HE.

2+'9+8+'*:./93'4;'2(+,58+56+8':/4-583'/4:'/4/4-
?5;8+7;/63+4:
It is recommended that all persons who will be operating or
maintaining this equipment should be familiar with this manual.
Failure to follow proper procedures could result in damage to the
equipment or severe personal injury.
!./9+7;/63+4:3;9:(+56+8':+*542?/4'=+22<+4:/2':+*
+4</8543+4:
The engine produces carbon monoxide which is an odorless
and colorless poison gas.
55: operate this machine inside an enclosed area or where
the exhaust fumes could enter a building through an open door,
window, or another opening.
!./9+7;/63+4:.'935</4-6'8:9.
Keep your hands, hair, loose clothing, or any other items
away from all moving or rotating parts. Do Not service the
equipment while it is operating. Do Not operate the equipment
without the safety guards in place. Serious injury may result.
!./9+7;/63+4:.'9.5:9;8,')+9
The components of the machine will be extremely hot dur-
ing and shortly after operation. Do Not touch any suspected hot
areas of the machine without allowing sufficient time for cool
down.
!./9+7;/63+4:;9+9'952/4+
Store fuels in approved containers. Keep away from sparks
or open flames. If an odor of gasoline is present, Do Not turn on
the equipment or any other accessories until the source of the
odor is controlled and the fumes are dissipated.
!./9+7;/63+4:)54:'/49+2+):8/)'265=+895;8)+9
<*)('::+8?
Batteries can give off explosive gasses that can be ignited
by sparks or any ignition source. Use caution when working with
or around batteries. Disconnect the negative terminal of the bat-
tery before performing repairs to the equipment. Make sure all
electrical components are turned off before connecting or discon-
necting the battery to avoid a spark at the cable and battery ter-
minal connection.
/-.68+99;8+'4*./-.:+36+8':;8+=':+8
This machine is capable of producing 2000 psi water pres-
sure and 250˚F + water temperature. All hoses must be capable
of withstanding these ranges. Make sure the pressure and tem-
perature are adjusted properly for the cleaning tool being used.
Severe injury may occur if caution is not observed while using
high pressure and temperature.
2+'42/4+99
The machine area must be kept clean and free of foreign
material that may interfere with the normal operation and safety
of the machine.
!8'/4/4-5,56+8':589
This machine must only be operated by qualified persons
who have read this manual and understand the operating char-
acteristics of the machine. Improperly trained persons may dam-
age the equipment or cause personal injury.
El Diablo HE (Heat Exchange) Truck Mount 3
Safety

4Operator’s Manual
!.+2/'(25:8;)135;4:;4/:3;9:(+9+);8+2?
(52:+*:.85;-.:.+,25585,:.+<+./)2+/4=./)./:/9
/49:'22+* +8/5;9*'3'-+:5:.++7;/63+4:586+8954'2
/40;8?3'?5));8/,:.+3')./4+/945:35;4:+*6856+82?
The El Diablo HE truck mount weighs approximately
700lbs. The use of a forklift is required when lifting the machine
into a vehicle. It is also strongly recommended that a second
person be utilized to stabilize the machine while it is on the fork-
lift, due to the center of gravity being heavy to the waste tank
side of the machine. "9+)';:/54=.+435</4-:.+3')./4+
=/:.:.+,5812/,::5'<5/**'3'-+:5+7;/63+4::.+<+./)2+
'4*6+8954'2/40;8?
The El Diablo HE truck mount can be installed into a ½ ton
or larger van; however, it is strongly recommended that it be
installed into a ¾ ton or larger van. The machine can be
installed in either the side door or rear door of the van. If the
machine is installed into the rear doors a vacuum hose reel may
be installed next to the machine to maximize van floor space
(See page 19).
Due to irregularities in the van floor it is suggested that
wood be placed under the machine to provide a level surface on
which the machine is mounted. The wood should be ½ “or ¾”
exterior grade plywood or equivalent.
The El Diablo HE has 2 “L” - shaped mounting brackets on
the front of the machine and holes pre-drilled into the rear of the
water box support on the back of the machine to be used for
mounting. There are also mounting tabs on the base of the
waste tank that can be used if the situation permits.
+,58+*8/22/4-.52+9/4:.+<'4,2558).+)1:5+49;8+
:.':;4*+84+':.:.+<'4,2558:.+8+'8+45,;+22/4+9(8'1+
2/4+9585:.+85(9:8;):/549:.':)5;2*)';9+'9',+:?.'@
'8* Use 3/8” bolts to secure the machine to the van floor. Lock
washers and large fender washers are recommended to be used
underneath the van. Tighten the bolts until the machine is
securely mounted to the floor.
The engine on the El Diablo HE runs on gasoline, there-
fore, it is recommended that the vehicle’s gasoline fuel tank be
accessed. There are several fuel tank hook-up kits available
from your supplier for each specific model of vehicle. :/98+)
533+4*+*:.'::.+,;+2.551;61/:(+/49:'22+*(?542?
7;'2/,/+*3+).'4/)9,'3/2/'8=/:.:./9:?6+5,35*/,/)':/54
If the equipment is to be installed into a trailer, make sure
that the fuel is stored in a proper tank and connected to the
machine according to federal, state and local regulations.
Installat on
Operat ng Procedures
! It is strongly recommended that a water soft-
ening system be used. It is highly likely that the water
in your area is considered hard. Hard water is water
that has a high mineral content. Your local water sup-
ply can be tested to determine the hardness. If the
water hardness is determined to be greater that 3.5
grains, a water softening system should be used.
Continued and prolonged use of the machine with
hard water will cause excessive scale buildup that
reduces heating and water flow performance. Hard
water also detracts from the performance and effec-
tiveness of the cleaning solutions.
.+)15/22+<+29
Make sure that the engine oil level is in the operating range
of the dipstick. Inspect the oil sight gauges on the Cat Pump and
the Roots blower to insure correct level of oil. Operating the
equipment with improper oil levels can cause damage to the com-
ponents that is not covered under warranty. (See the
Maintenance section for the proper oil to be used in the engine,
blower, and the pump.)
.+)1,;+22+<+29
Make sure that there is an adequate supply of gasoline in
the gas tank to finish the job. If you are connected to the gaso-
line tank of the van, it is suggested that the level of fuel be no
less than ½ tank to avoid running the van out of fuel and being
stranded.

.+)1)2+'4/4-952;:/54
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.
544+):.59+9:53')./4+
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.
:'8::.++4-/4+
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. ,',:+8589:'8:/4-
'::+36:9:.++4-/4+9:/229:'229).+)1:.+5/22+<+2:.+4)54
:'):?5;8*/9:8/(;:585825)'29+8</)+)+4:+8,58'99/9:'4)+
!!"!!!
" $ "!!! !#
"$!&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.
!;8454:.+=':+86;36
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. 545:)54:/4;+:556+8':+
:.+6;36=/:.5;:68+99;8+9.5=/4-54:.+68+99;8+-';-+
589+8/5;96;36*'3'-+=/225));8:.':/945:)5<+8+*;4*+8
='88'4:?;369+'2*'3'-+=/225));8
$!%!!&!!"!
$!"
+:=':+868+99;8+
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.
+:)2+'4/4-952;:/542+<+2
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.
+:!.+8359:':
Set the thermostat to the desired temperature for the job.
2+'9+5:+!.+8+3;9:(+':2+'9:A.-<');;354:.+
-';-+,58:.+*/<+8:+89?9:+3:5=5816856+82? 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).
$':+8>:8'):/54
When the need to perform water extraction only arises,
!!"!$!" $! Adjust the ther-
mostat to it lowest position. The diverter system is activated by
the water pump switch and the thermostat.
5362+:+:.+)2+'4/4-05(
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
Operat ng Procedures (cont nued)

6Operator’s Manual
!;845,,:.+:.+8359:':'4*952;:/543+:+8
Adjust the thermostat to the lowest setting and flush fresh
water thru the cleaning solution system to remove the possibility
of any residue left in the wand and hoses. Continue to run the
machine until the water temperature is 150ºF or lower. This will
reduce the residual heat left in the system.
!;845,,:.+=':+86;36
Turn off the Pump Clutch switch and activate the cleaning
tool to release pressure in the hoses.
!;845,,:.++4-/4+
Move the throttle lever to idle. Allow the engine to run for
several minutes to cool down. On the last job of the day, spray
WD-40 (or an equivalent) for 5 to 10 seconds into the Blower
Lube located on the upper front panel. 5:+ When spraying
the WD 40 the engine should be at operating speed and a vacu-
um load applied by blocking off the vacuum port on the waste
tank or the vacuum hose if it is still connected to the waste tank.)
Turn the key switch to off.
+:8/+<+'4*9:58+)2+'4/4-:5529'4*.59+9
Make sure all hoses, cleaning tools and accessories that
were used on the job are properly stored in the vehicle.
36:?='9:+:'41
When emptying the waste tank, follow local, state, and fed-
eral laws concerning waste water disposal. Waste water should
be disposed of only into drain systems that connect to a munici-
pal sanitary sewage treatment plant!
Make sure the engine is turned off before draining the
waste tank. Connect the drain hose to the drain valve on the
waste tank and open the valve. Remove the waste tank lid and
lift out the lint basket and clean out any debris that has accumu-
lated then reinstall basket in tank. Inspect the blower lint screen
for any build up of debris. Remove and clean screen then re
install. Do not operate machine without the blower lint screen
installed or serious damage to the blower will occur that is not
covered under warranty.
Rinse out the waste tank at the end of the cleaning day
using fresh water to prevent an accumulation of debris in the bot-
tom.
Shutdown Procedures

!&!"
$!"! "#!
!! &" "&
!!
This section of your machine manual may very well be the
most important section of the manual that you read. The proper
care and maintenance of your El Diablo truck mount is essential
for a safe and reliable long life to your investment.
4-/4+
Check the engine oil level daily when the engine is turned
off and is in a level position. The oil level should be between the
upper limit and the low limit marks on the dipstick. 6+8':/4-
:.++4-/4+=/:./36856+85/22+<+2)'4)';9++4-/4+*'3'-+
:.':/945:)5<+8+*;4*+8='88'4:?
Change the oil after the first 20 hours and then every 100
hours thereafter. Use 10 W-30 with an API SERVICE CATEGO-
RY S or higher motor oil (see Kohler owners manual). The
engine holds approximately 2 US qts with an oil filter change. . It
is recommended that the oil be warm so it will drain more quickly
and efficiently.
Change the oil filter at least every 200 hours. Use only a
genuine Kohler oil filter or a filter of equivalent quality 96+)/,/+*
,58?5;8+4-/4+35*+2 Check the air filter every 50 hours and
replace as necessary. Replace the spark plugs every 500 hours.
For more specific engine maintenance procedures see the
Kohler Engine Owners Manual. "9+542?)2+'4,8+9.;42+'*+*
-'952/4+
25=+8
The El Diablo uses a Roots URI- DSL blower that is splash
lubricated by gear oil on both the front and back of the blower.
There are sight gauges on the side of each gear case for check-
ing the oil level. The gear boxes are filled with ROOTS SYN-
THETIC OIL. Use only ROOTS SYNTHETIC OIL to maintain
optimum performance. The gear oil should be changed after
the first 100 hours of operation, then every 1000 hours there-
after. To drain the oil, remove the drain plug in the bottom of the
gear case and allow the oil to drain out. It is recommended that
the oil be warm so it will drain more quickly and efficiently. To
refill the gear case, remove the top plug and fill until the oil
reaches the middle of the oil sight gauge on the side of the gear
case. The front and rear gear case must be serviced individual-
ly.
At the end of each working day, lubricate the lobes in the
blower by spraying WD-40 (or equivalent) for 5 to 10 seconds
into the Blower Lube located on the front panel of the
machine.(5:+ When spraying the WD 40 the engine should be
at operating speed and a vacuum load applied by blocking off
the vacuum port on the waste tank or the vacuum hose if it is still
connected to the waste tank.) If the blower is going to be shut
down for an extended time, it is especially important that this be
done to protect the lobes from rusting.
':;36
The crank case on the Cat Pump is filled with special CAT
PUMP CRANKCASE OIL. The oil should be changed after the
first 50 hours of operation then every 500 hours thereafter. Use
only CAT PUMP CRANKCASE OIL to maintain optimum per-
formance. The oil level should be at the middle to the top of the
red dot in the oil sight gauge located on the pump housing.
+2:'4*5;62+8
Belt tension is adjusted by first removing the belt guard.
Then loosen the tensioner mounting bolt. Move the tensioner
away from the pump to increase belt tension. Tighten the
mounting bolts. Reinstall the belt guard.
A spare belt is already installed at the factory. To install a
new spare belt or to replace the coupler sleeve, loosen the ten-
sioner as previously described above, and then loosen the two
set screws in the engine coupling flange. The flange will slide on
the shaft to open up a gap in the coupler assembly to allow a
new belt or coupler sleeve to be installed.
El Diablo HE (Heat Exchange) Truck Mount 7
Ma ntenance

8Operator’s Manual
Ma ntenance Checkl st
+8</)+4:+8<'2.5;89
+8</)+:+3 '/2?
/2 Check 1st Change @
20 Hours X
/2/2:+8 1st Change @
20 Hours X
/8/2:+8 X Replace
6'812;- Replace
gap .028 - .031
;+2/2:+8 Replace
$
8'41)'9+/2 X 1st Change Change
;(+36+22+89 X
2+'4/4: )8++4 Every ob
X
2+'4/4:'91+: Every ob
X
!"
8'41)'9+/2 1st Change Change
+2:!+49/54 X
&
?'99 )8++4
++/:+3546'-+ Check Replace
?'998/,/)+
5)':+*/4=':+8(5> Check Replace
It is recommended that a general inspection of the machine, components, hoses, fittings,
nuts & bolts, etc., be performed on a monthly interval.

El Diablo HE (Heat Exchange) Truck Mount 9
4-/4+
'8*9:'8:/4-58=54B:9:'8: Check fuel in fuel tank to assure proper level and not contaminated.
Check fuel pump for operation.
Check for proper oil level.
Check battery and battery connections. Make sure they are clean and tight and battery is
charged.
Check fuse located on side of engine. Replace if blown.
Check waste tank water level. Drain if necessary.
Check waste tank float switch to make sure it is not stuck.
Inspect spark plugs and spark plug wires. Clean or replace spark plugs if necessary.
4-/4+8;49(;:259+965=+8 Check fuel for good quality.
Check fuel filter. Replace if restricted.
Check air filter for cleanliness. Replace if necessary.
Check spark plugs for proper gap and condition.
Make sure waste tank lint screen is clean.
Check engine oil level.
Check fuel pump for proper operation.
#');;3
#');;3/9=+'1 Make sure waste tank lint screen is clean.
Check that the waste tank lid is on properly.
Check to make sure the waste tank gasket is in good shape.
Check to make sure the waste tank drain valve is closed.
Check the vacuum hoses and cleaning tool for clogs.
Make sure engine is at proper operating rpm (3000).
Check waste tank inlet and lint basket for restrictions.
$':+88+99;8+
5=5845=':+868+99;8+54-';-+ Check incoming water supply for sufficient volume and pressure.
Check float in water tank to make sure it is not stuck or clogged.
Check level of cleaning solution in solution container and make sure hose is below solution
level.
Check to make sure the pump clutch is engaging.
Check pump belt tension to make sure it is not slipping.
Check adjustment of pressure regulator to make sure it has not backed off.
Check jets on cleaning tool for correct size and excessive wear of opening.
Check filter screen in bottom of fresh water tank.
5==':+868+99;8+'::552 et on cleaning tool partially clogged.
(;:-55*68+99;8+54-';-+ Quick disconnects on hoses worn and not making good connection.
Pressure hoses between machine and cleaning tool damaged or restricted.
Bad valve on cleaning tool.
Heating coil has scale build-up.
Troubleshoot ng
!&!" $!"! "#!
!! &" "&!! &"

10 Operator’s Manual
Waterflow D agram
CAT Pump
12
3
4
5
35
28
30
29
27
26
25
24
27
33
27
31
22
21
23
37
7
32
34
36 12
11
31
18 19 20
17 16
15 14
89
10
36
6
35
13
39
38

El Diablo HE (Heat Exchange) Truck Mount 11
Waterflow D agram Legend
#
Part #
Description
1
700101
Q.D. !” Female -Brass
2
715005
Pressure Regulator
3
730005
HEP Solution Valve 3-Way 1/8”
4
730006
HEP Solution Metering Valve
5
950110
5-Gallon Jug –Solution
6
730004
Flow Meter W/O Knob
7
700100
Q.D. 3/8” Female -Brass
8
730007
HEP Solenoid –Bypass
9
731415
Deck Lid –Complete –6” Black
10
731197
TM Water Supply Float Valve "”
11
720520
Cat Thermal Relief 165˚ "” MPT
12
731404
HEP SS Water Box Only
13
740079
Fresh Water Filter "” Acorn
14
701307
Jet Tee Body !” MPT
15
701313
Jet Tee Orifice .049
16
701312
Jet Tee Orifice Adapter
17
701304
Jet Tee Cap
18
701308
Jet Tee Body !” FPT
19
701302
Jet Tee Strainer
20
701309
Jet Tee Adapter !” FPT
21
720500
Cat 3CP 120CS 3400 Pump
720501
Cat 3CP Clutch Assembly
720522
Cat 3CP 1120.3400 Seal Kit
720505
Cat 3CP Valve Kit
22
720523
Cat Pulse Pump w/Adapter
720524
Cat Adapter for Pulse Pump
23
731401
Heat Exchanger –Outer Tube
731402
Heat Exchanger End Cap w/Butterfly
731403
Heat Exchanger Inner Baffel
731400
Heat Exchanger Finned Tube Coil
24
700105
Q.D. 3/8” Male Straight Thru –FPT
700106
Q.D. 3/8” Female Straight Thru –FPT
25
731407
HEP Brass Manifold
26
731408
HEP High Temperature Switch
27
731245
Hose 3/8” x 27.5” (Used 3 times)
28
780901
Check Valve 3/8” FPT
29
719022
Pressure Gauge 2000 PSI w/Flange
30
731185
Hose- Pressure Gauge –TM
31
731246
Hose !” Flare x !” Flare x 22” (Used 2 times)
32
731248
Hose !” Flare x !” Flare x 77”
33
731247
Hose 3/8” MPT x !” Flare x 15.5”
34
731198
Hose –Pump to Regulator –60”
35
451021
!” Low Pressure Hose – Purple – (Per Foot)
36
731181
"” Low Pressure Hose –Blue –(Per Foot)
37
450606
#” Low Pressure Hose –Blue –(Per Foot)
38
731127
TM Chem Feed Line –Clear –(Per Foot)
39
740058
1/8” Acorn Strainer
Legend: Blue = Cold Water Red = Hot Water HEP = Heat Exchanger Part
Purple = Cleaning Solution Yellow = Bypass

12 Operator’s Manual
Battery
Transfer Pump (Optional)
Fuel Pump
High
Pressure
Solenoid
Yellow
From
Engine
Thermostat
Black
White
WhiteWhite
White
Pump
Clutch
Mac
Valve
Electrical Diagram
(Back side of panel)
Black
Electr cal D agram

El Diablo HE (Heat Exchange) Truck Mount 13
# Description Part #
1. Kohler Engine - EFI 27HP 728120
2. Solution Metering Valve 730006
3. Solution Valve - 3 Way 730005
4. Flow Meter without Knob 730004
5. Temperature Gauge - Murphy 730028
6. Pressure Gauge 2000 PSI w/Flange 719022
7. Vacuum Gauge 730012
8. Switch - Pump Clutch 740211
9. Tiny Tach / Hour Meter 730018
10. PVC Elbow Barb 2” x 2” FPT 740266
11. Rubber Cap 731126
12.
TM Chem Feed Line - Per Foot - Qty 4
ot Shown - 1/8” Acorn Strainer - End of Chem Feed Line
ot Shown - 1/4” Tube x 1/8” MPT, compression tube
731127
740058
700346
13. 5 Gallon Solution Bottle 950110
14. Shut-Off Valve 1/8” x 1/8” (Blower Lube) 700168
14 1
Upper Panel V ew
34 5 6 7 8 9 10 11
12
13
2

14 Operator’s Manual
# Description Part #
1. Shutoff Valve - Oil Drain - 1/4” x 1/4” 700161
2. 1/4” Quick Disconnect - Female 700101
3. Pressure Regulator - Model 555 715005
4. Thermostat 755501
5. 3/8” Quick Disconnect - Female 700100
6. Drain Valve 2” FPT x 2” MPT 705115
7 PVC Barb 2” x 2” MPT 740033
2
1 3
Lower Panel V ew
5 4 7 6

El Diablo HE (Heat Exchange) Truck Mount 15
# Description Part #
1. Stainless Steel Water Box 731404
2. Kunkle Valve 730025
3. PVC Cap 2” FPT 731183
4. 3CP 1120.3400 Cat Pump
3CP 1120.3400 Seal Kit
720500
720522
5. Cat Pulse Pump 720523
6. Pulley / Belt Guard 755553
7. Muffler 725057
8. Bimba Actuator Support - R
Bimba Actuator Support - L
731405
731406
9. Bimba Diverter Actuator 731409
10. Bimba Diverter Actuator - Rod End 731410
11.
Heat Exchanger - Outer Tube
Heat Exchanger - End Cap w/Butterfly
Heat Exchanger - Inner Baffel
Heat Exchanger - Finned Tube Coil
731401
731402
731403
731400
3 4 6
11
S de V ew
10 9 8 7
21 5

El Diablo Truck Mount 16
# Description Part #
1. Coupling Flange 1 7/16” (Engine) 731158
2. Coupling Sleeve 8 Jems 731174
3. Coupling Flange 7/8” (Blower) 731157
4. Pulley 731189
5. Pulley / Belt Guard 755553
6. Belt - Ax 43 731244
7. TM Kohler Exhaust Manifold - EFI 731412
8. Flex Exhaust 1.25 x 18” SS 731166
9. Kohler Air Filter 728111
10 Kohler Oil Filter 728110
6 7 9
54 3
Eng ne V ew
2 1 8 10

El Diablo HE (Heat Exchange) Truck Mount 17
# Description Part #
1. Roots Blower 725005
2. Bypass Solenoid 730007
3. MAC Valve - For Bimba Cylinder 731411
4. Blower Elbow 45˚ 731107
5.
Idler Pulley
Idler Pulley Bolt
Idler Pulley 1/8” Spacer
Idler Pulley Arm
Idler Pulley Arm Spacer 1 3/8”
731114
731115
731116
731117
731138
6. V-Belt Ax-43 731244
7.
Bypass Filter Strainer
Bypass Filter Adapter 1/4” FPT
Bypass Filter Body - 1/8”
701302
701309
701306
8. Close ipple 2 1/2” MPT 731193
9. Blower Exhaust Hose - Silicone (Per inch - 4” needed) 731194
10. Blower Oil Sight Gauge ( o #)
2 3 4 5 6
1
10 8 7
Behind hose
Blower V ew
9

18 Operator’s Manual
# Description Part #
1. Deck Lid 6” Black 731415
2. Kunkle Valve 730025
3. Waste Tank Gasket - Per Foot (9’ Length) 731161
4. TM Waste Tank 731101
5. TM Waste Tank Float Switch 731179
6. TM Waste Tank Filter 731103
7. TM Waste Tank Aluminum Basket 731131
8. Brass Manifold 731407
9. High Temperature Shut-Down Switch 731408
10 Cat Pump Oil Gauge 720508
4 5 6 7
9
3
2 1 8
Waste Tank and Upper V ew
10

El Diablo HE (Heat Exchange) Truck Mount 19
Van Layouts:
The WaterWell
RB 121˝
EB 20˝
The WaterWell
El Diablo HE
Heat Exchange
Side Mounted
El Diablo HE
Heat Exchange
Rear Mounted
EB = Extended Bed
RB = Regular Bed
El Diablo HE
El Diablo HE

5330 Pecos Street · Denver, CO 80221
800-525-9644 · 303-373-0702
www.masterblend.net
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