HY-FLO 4355H User manual

Service ManualService Manual
For full warranty information,contact your delivering distribu-
tor or contact the manufacturer at info@warrantysvc.com
20200506
Compact Skid GED Series
Model 4355H
(800) 421-4018
www.hy-oequipment.com

English to Metric Conversions
1 gal/m = 3.7843 L/m
1 hp = .7457 kw
100 psi = 6.8964 bar
1 ft = .3048 m
1 in = 2.54 cm
1 lb = .4536 kg
(˚F – 32)
1.8 =˚C
20180730
WARNING: This product can expose you to chemicals including lead, which is
known to the State of California to cause cancer and birth defects or other repro-
ductive harm. For more information, go to www.P65Warning.ca.gov
ADVERTENCIA: Este producto puede exponerle a productos químicos incluso
el plomo, que es conocido al Estado de California causar cáncer y defectos de
nacimiento u otro daño reproductivo.
AVERTISSEMENT : Ce produit peut vous exposer aux produits chimiques en in-
cluant l’avance, qui est connue à l’État de Californie provoquer le cancer et les
anomalies congénitales ou d’autre mal reproducteur.
WARNING:
ADVERTENCIA:
AVERTISSEMENT: California Prop 65 Warning
Register your machine at
warranty.alkota.com
_________________
INSTALLATION DATE
______________________________________________________
MAKE/MODEL SERIAL NUMBER
______________________________________________________
SELLER
______________________________________________________
ADDRESS CITY/STATE/ZIP

Contents
Table of Contents
Quick Machine Checklist ��������������������������������������������������������������������������������������������������4
Specications ���������������������������������������������������������������������������������������������������������������������1
Maintenance Schedule�������������������������������������������������������������������������������������������������������3
General Assembly ��������������������������������������������������������������������������������������������������������������4
Fuel Tank Assembly �����������������������������������������������������������������������������������������������������������6
Fuel Filter ����������������������������������������������������������������������������������������������������������������������������7
Specications, Trouble Shooting���������������������������������������������������������������������������������7
Maitennace Schedule ����������������������������������������������������������������������������������������������������8
Assembly, Control Panel ���������������������������������������������������������������������������������������������������9
Electrical Schematic���������������������������������������������������������������������������������������������������������10
Float Tank Assembly��������������������������������������������������������������������������������������������������������11
Water Pump�����������������������������������������������������������������������������������������������������������������������12
Injector, Chemical - Downstream �������������������������������������������������������������������������������13
Pump Maintenance�����������������������������������������������������������������������������������������������������������14
Plunger Service, Removal, Installation����������������������������������������������������������������������15
Packing Service �����������������������������������������������������������������������������������������������������������16
Head Installation - Torgue Sequence�������������������������������������������������������������������������17
Freezing conditions - Pump Oil Change�������������������������������������������������������������������17
Pump����������������������������������������������������������������������������������������������������������������������������������18
Specications ��������������������������������������������������������������������������������������������������������������18
Exploded View �������������������������������������������������������������������������������������������������������������19
Pump Kits���������������������������������������������������������������������������������������������������������������������20
Unloader Assembly ����������������������������������������������������������������������������������������������������������22
Specications ��������������������������������������������������������������������������������������������������������������23
Parts List ����������������������������������������������������������������������������������������������������������������������24
Maintenance - Exploded View ������������������������������������������������������������������������������������25
Trouble Shooting���������������������������������������������������������������������������������������������������������26
Pre-Cleaner Assembly �����������������������������������������������������������������������������������������������������27
Oil Burner��������������������������������������������������������������������������������������������������������������������������28
Burner Maintenance���������������������������������������������������������������������������������������������������������29
Burner Breakdown �����������������������������������������������������������������������������������������������������������32
Burner Parts List ��������������������������������������������������������������������������������������������������������������33
Coil Assembly�������������������������������������������������������������������������������������������������������������������34
Troubleshooting ���������������������������������������������������������������������������������������������������������������35
Pump�����������������������������������������������������������������������������������������������������������������������������35
Burner���������������������������������������������������������������������������������������������������������������������������37
Water Heater�����������������������������������������������������������������������������������������������������������������39
Schematic, Engine������������������������������������������������������������������������������������������������������������41
Warranty����������������������������������������������������������������������������������������������������������������������������43
(800) 421-4018
www.hy-oequipment.com

Machine Check List
Gasoline Powered Hot Water Equipment
Daily:
_
___
_
Check oil level in motor.
Daily:
_
___
_
Check fuel levels. Add diesel or kerosene to black tank marked diesel. Add
gasoline to red tank marked gas. DO NOT ADD GAS TO DIESEL TANK -
EXPLOSION CAN OCCUR!II
Monthly:
_
___
_
Check oil level in pump and inspect belts for wear.
To start machine:
_____ 1. Make sure burner switch is in off position.
_
___
_
2. Choke engine - start motor. (Starting the motor with the trigger pulled ensures
easy start.)
_
___
_
3. Turn on burner - set temperature gauge to desired temperature.
_
___
_
4. When finished cleaning - turn off burner and run machine until discharge water is
cool.
_
___
_
5. Pull trigger when machine is off to release pressure in system.
Winterization
To winterize system:
_
___
_
1. With machine off - close ball valve to water and open valve to antifreeze tank.
_____ 2. Start engine - do not turn on burner.
_
___
_
3. Run machine with antifreeze valve open until it flows out end of wand, then
release trigger and re-pull trigger briefly. System is now antifreezed.
_
___
_
4. Upon start-up: close antifreeze ball valve and open water valve. Remove nozzle
and place end of wand in antifreeze tank. Start machine and run machine until all
antifreeze has been recaptured into antifreeze tank.
IMPORTANT: CHECK ANTIFREEZE PROTECTION LEVEL AND MAKE SURE THAT
FREEZE LEVEL IS BELOW AMBIENT TEMPERATURES! Freezing will cause extensive
damage to equipment.
Quick Machine Checklist

1
Specications
Specications
PERFORMANCE
Discharge Volume
3.7 gal/m / 14.0 L/m
Pump Head Pressure
3500 psi / 242 bar
Combustion Smoke/Bacharach
Scale
#1 OR #2 SMOKE
Carbon Monoxide Allowed
0.01%
Draft/Stack Installation
0.2” – 0.04” WC READING
Heat Input
235,200 Btu/h / 59,270 kcal/h
Combustion Smoke/Bacharach
Scale
#1 OR #2 SMOKE
GENERAL
Minimum Inlet Water Pressure over 65 psi may require water inlet regulator
10 psi / 0.68 bar
Weight
705 lbs / 320 Kg
Burner Fuel Tank Capacity
11gal / 42 Ltr
Engine Fuel Tank Capacity
1.7 gal / 4.4 Ltr.
Dimensions
40”” Long x 42 High x 24” Wide
Pump
Triplex, Oil Bath Crankcase, Solid
Ceramic Plungers
Spray Tip
Red (#4 - 0˚) p/n JA0-00040-2
Yellow (#4 - 15˚) p/n JA0-15040-2
Green (#4 - 25˚) p/n JA0-25040-2
White (#4 - 40˚) p/n JA0-40040-2
Belt
p/n R02-00245
Coil
Standard 14” OD x 1/2” ID x 95’ Schedule 80
Coil Back Pressure (New) 5 psi / 0.34 bar
Coil Back Pressure Requiring Descaling 50 psi / 3.40 bar

2Specications
Pump Engine
p/n F05-00488
Make Honda GX390
Horsepower 13 hp / 9.7 kw
Fuel Gasoline
Engine Starting Electric
Engine Air Filter p/n F05-000462-10
Engine Air Pre-Cleaner None
Engine Oil Filter None
Fuel Tank Capacity 6.4 Qt / 6.5 L
Oil Capacity 1.16 Qtl / 6.5 L
Engine Oil Alert Yes
BURNER
Burner Part Number V00-173141
Burner Type Pressure Atomizing
Voltage 12VDC
Horsepower 1/8 HP
Fuel Type Kerosene, #1 or #2 Diesel
Fuel Pressure 125 PSI / 9 BAR
Fuel Pump P/N V0014283
ELECTRICAL
Machine Voltage
12v
Battery Cable Negative - Black
32” Clmp/Eye p/n F05-00232
Battery Cable Positive + Red
32” Clmp/Eye p/n F05-00232-R
Burner Nozzle 1.50 90 Degree A
p/n V1.50 90DA
Fuel Consumption 1.68 Gal/Hr / 6.3 L/Hr
Fuel Pressure 125 Psi

3
Final Assembly
Maintenance Schedule
ENGINE DRIVEN Maintenance Schedule
Pressure Washer Cleaners
daily
Each HR
1st 8 HRS
AFTER
1ST 50
EVERY 50
HRS
EVRERY
100 HRS
EVERY
500 HRS
YEARLY
Oil Bath Water Pump:
Oil Level- check and add as needed per PUMP
SERVICE insert ●
Oil Change- drain and rell per PUMP
SERVICE insert
CAUTION: Used oil must be disposed into an
environmentally safe container and brought to an oil
recycling center
● ●
Oil Contamination- milky color indicates water ●
Hoses:
Blistering, loose covering ●
Abrasion of cover exposing reinforcement ●
Cuts exposing reinforcement ●
Belts:
Cracks or fraying ●
Belt tension- For correct belt tension, see
MACHINE MAINTENANCE insert ●
Filter-Water:
Check water inlet hose screen for debris ● ●
Check oat tank screen for debris ●
Leaks:
Check for water and build up of scale at pipe
connections ●
Guards and Shields: ●
Check that all guards and shields are in place
and secure
Freezing Temperatures:
Freezing temperatures break water pumps
and like components. See STORAGE in the
MACHINE MAINTENANCE section for cold weather
instructions.
● ●
Fuel:
Adequate fuel supply ●
Filter-Fuel:
If contaminants are present see FUEL FILTER
insert ●
Remove and replace fuel lter. ●
Guards and Shields:
Check that all guards and shields are in place
and secure ●

4General Assembly
General Assembly
27 29/32"
11
3
29 20 19
8
5
7
13
30
12
15
6
21
1612410
18
28
2
22
17
27
14
4
37 29/32"
41 13/16"

5
General Assembly
ASSEMBLY, GENERAL
3/5/2008
ITEM NO.
PART NUMBER
PART DESCRIPTION
QTY.
1
4355H-00501
ASSEMBLY, PUMP
1
2
4355H-00515
ASSEMBLY, UNLOADER
1
3
4355H-00657
ASSEMBLY, PRE - CLEANER
1
4
4355H-01121
ASSEMBLY, TANK - FLOAT
1
5
4405F-00126
ASSEMBLY, TANK - FUEL
1
6
4405F-00302
ASSEMBLY, CONTROL PANEL
1
7
E05-10025
CAP, PIPE
1
8
E09-00002-2
PLUG, PIPE
1
9
F04-00342
CLIP, INSULATED - 1/2"
6
10
H03-31311
BOLT,J-5/16-18UNC x 3 1/2
1
11
H04-19011
SCREW, SELF TAP
4
12
H04-31301
SCREW, CAP - 5/16 X 3/4
4
13
H04-31326
CAP, SCREW
2
14
H06-25003
NUT, HEX
4
15
H06-31300
NUT, LOCK - 5/16"
7
16
H06-37500
NUT,LOCK-3/8-16UNC HEX
4
17
K02-03222A2
ASSEMBLY, HOSE - 3/8 x 22""
1
18
K02-03225A2
ASSEMBLY, HOSE - 3/8 x 25"
1
19
K23
HOSE, LOW PERMEATION, BLACK
1
20
K23
HOSE, LOW PERMEATION, BLACK
1
21
K33-00900
HOSE, WATER - 3/8 X 9"
1
22
K60-02300
HOSE, WATER - 5/8 X 23"
1
23
R03-00732
PULLEY,V2AK32H
1
24
R03-00774
PULLEY,DBL V-2AK74H
1
25
R04-00001
BUSHING, PULLEY
1
26
R04-0006
BUSHING, PULLEY
1
27
W02-00031
CLAMP, HOSE
2
28
W02-00032
CLAMP, HOSE
2
29
W02-00033-P
CLAMP, HOSE
4
30
W04-34155-A
COUPLER, QUICK
1

6Fuel Tank
6
2
7
1
5
4
3
ASSEMBLY, TANK - FUEL
p/n: 4405F-00126
10/22/2009 - 10 Gallon
ITEM
NO. PART NUMBER PART DESCRIPTION QTY.
1 4405F-00125 TANK, FUEL 1
2 E08-00005-2 ELBOW,1/4FNPT 1
3 E09-00002-2 PLUG, PIPE 1
4 E13-00025-48 NIPPLE, PIPE 1
5 V04-00308 FILTER, FUEL 1
6 W02-10019-8 BARB, HOSE 1
7 W02-10031 BARB, HOSE 1
Fuel Tank Assembly

7
Fuel Filter
Fuel Filter
Specications, Trouble Shooting
FILFIL
FILFIL
FILTER,TER,
TER,TER,
TER, FUELFUEL
FUELFUEL
FUEL
P/N V04-00308
REMEDY
1. Fuel bowl leaking.
2. Air leaking into system
(indicated by air bubbles in bowl
during operation).
A. Deteriorated gasket.
B. Housing Cracked.
C. Bowl rim cracked, nicked, or scratched.
D. Gasket missing.
E. Loose Fuel Bowl.
A.Loose Valve Assembly.
B. craked Component.
C. loose Filter bowl.
A. Remove and Replace Gasket.
B. Remove and Replace Housing.
C. Remove and Replace Bowl.
D. Replace Gasket.
E. Tighten Fuel Bowl Onto Filter.
A.Tighten Valve Assembly.
B. Inspect Filter Bowl, Filter Housing,
and Gasket.
C. Tighten Fuel Bowl Onto Fuel Filter.
TROUBLE POSSIBLE CAUSE
TRTR
TRTR
TROUBLE SHOOOUBLE SHOO
OUBLE SHOOOUBLE SHOO
OUBLE SHOOTINGTING
TINGTING
TING
•MAXIMUM FLOW 15 GPH / 57 LPM
• MAXIMUM FILTRATION 2 MICRONS
• MAXIMUM TEMPERATURE 212°F / 100°C
• WEIGHT 1.0 LBS. / 340 GM
• INLET 1/4 NPT
• OUTLET 1/4 NPT
SPECIFICASPECIFICA
SPECIFICASPECIFICA
SPECIFICATIONSTIONS
TIONSTIONS
TIONS
3 1/4"
5 1/2" (6 1/2" Required For
Element Removal)
Inlet
Vent Plug
Drain Port
Outlet
ALL DIMENTIONS ARE
IN INCHES UNLESS OTHERWISE
NOTED. 25.4 MM = 1 INCH
Specications
Maximum Flow 15 GPM / 57 LPM
Maximum Filtration 2 Microns
Maximum Temperature 212˚F / 100˚C
Weight 1.0lbs / 340km
Inlet ¼ NPT
Outlet ¼ NPT
All dimensions are in inches unless otherwise noted.
25.4 mm = 1 inch
Maintenance Procedures
Priming the machine
Shut off the fuel tank valves. Spin off the clear bowl, ll with clean fuel and coat the round gasket (3)
with fuel. Reinstall the clear bowl and tighten ¼ to 1/3 turns after the gasket contacts the upper housing.
Turn on the fuel tank valves. Start the machine and check that there are no leaks.
Draining water
Check the collection bowl daily. Drain off water contaminants by unscrewing the clear bowl turning
counter-clockwise. Start the machine and allow air to purge from the fuel system prior to operating the
equipment.
Element replacement frequency
Frequency of element replacement is determined by contamination level in the fuel. Replace the
element every 500 hours.
Note: Foul smelling diesel fuel is an indication of microbiological contamination. A change in fuel source
is recommended. Always carry a spare lter element as one tank full of contaminated fuel will plug the
fuel lter element prematurely.
Element replacement procedure
1. Shut off the fuel tank valves.
2. Unscrew the clear bowl turning counter-clockwise.
3. Remove and discard the lter element.
4. Follow listed procedures under “PRIMING.”
Filter, Fuel
p/n V04-00308

8Fuel Filter
Maitennace Schedule
PRIMING THE MACHINE
Shut off the fuel tank valves. Spin off the element, fill with clean
fuel and coat the square gasket (3) with fuel. Reinstall the
element and tighten 1/4 to 1/3 turns after the gasket contacts
the upper housing. Turn on the fuel tank valves. Start the
machine and check that there are no leaks.
2. DRAINING WATER
Check the collection bowl daily. Drain off water contaminants
by opening the head vent and then the drain. If more than 1/8
cup of fluid is drained, follow the priming instructions,
otherwise, close the vent and drain. Start the machine and allow
air to purge from the fuel system prior to operating the
equipment.
3. ELEMENT REPLACEMENT FREQUENCY
Frequency of element replacement is determined by con-
tamination level in the fuel. Replace the element upon power
loss of the engine (if so equipped) or every 500 hours
whichever comes first.
NOTE: Foul smelling diesel fuel is an indication of microbio-
logical contamination. A change in fuel source is recommended.
Always carry a spare element as one tank full of contaminated
fuel will plug the fuel filter element prematurely.
4. ELEMENT REPLACEMENT PROCEDURE:
1. Shut off the fuel tank valves.
2. Unscrew the amber bowl from the fuel filter.
3. Unscrew and discard the filter from the upper housing.
4. Follow listed procedures under “PRIMING”.
MAINTENMAINTEN
MAINTENMAINTEN
MAINTENAA
AA
ACE PRCE PR
CE PRCE PR
CE PROCEDURESOCEDURES
OCEDURESOCEDURES
OCEDURES
EXPLEXPL
EXPLEXPL
EXPLODEDODED
ODEDODED
ODED VIEWVIEW
VIEWVIEW
VIEW
GASKETS:
1. Inspect for deterioration or tearing.
2. Remove and Replace.
BOWLS:
Inspect rim of bowl to insure it is free
of nicks, cracks, or scratches.
FILTER ELEMENT:
1. Inspect for damage or deterioration.
2. Remove and Replace. (500 hours)
FUEL BOWL:
If contaminants are found, check more
frequently.
NOTE:
intervals stated are for normal operating conditions. the
intervals suggested may be shiortened or lengthened as
determined by existing conditions.
WEEKLY 100 HRS
**
*
*
*
*
MAINTENMAINTEN
MAINTENMAINTEN
MAINTENANCE SCHEDULEANCE SCHEDULE
ANCE SCHEDULEANCE SCHEDULE
ANCE SCHEDULE
FILFIL
FILFIL
FILTER,TER,
TER,TER,
TER, FUELFUEL
FUELFUEL
FUEL
BREAKDOWN - P/N V04-00308
7
6
1
8
4
5
3
2
10
9
PARTS LIST
ITEM PART NUMBER PART DESCRIPTION QTY.
1 V04-00308-02 HOUSING, UPPER 1
2 V04-00308-07 ASSEMBLY, DRAIN 1
3 V04-00308-06 BOWL, AMBER - 3" 1
4 V04-00308-01 ELEMENT, FILTER 1
5 V04-00308-05 O-RING - 3/32CS X 2 1/2ID 1
6 C07-01300-08 O-RING - 1/16CS X 5/16ID 1
7 V04-00308-08 PLUG, PIPE 1
8 V04-00308-03 RING, FLAT 1
9 V04-00308-K KIT, REPLACEMENT
BOWL 1
10 V04-00308-04 ASSEMBLY, VENT 1
PARTS LIST
ITEM PART NUMBER PART DESCRIPTION QTY.
1 V04-00308-02 HOUSING, UPPER 1
2 V04-00308-07 ASSEMBLY, DRAIN 1
3 V04-00308-06 BOWL, AMBER - 3" 1
4 V04-00308-01 ELEMENT, FILTER 1
5 V04-00308-05 O-RING - 3/32CS X 2 1/2ID 1
6 C07-01300-08 O-RING - 1/16CS X 5/16ID 1
7 V04-00308-08 PLUG, PIPE 1
8 V04-00308-03 RING, FLAT 1
9 V04-00308-K KIT, REPLACEMENT
BOWL 1
10 V04-00308-04 ASSEMBLY, VENT 1
Maintenance Schedule
Weekly
EVRERY
100 HRS
Gaskets
Inspect for deterioration or tearing. ●
Remove and replace. ●
Bowls
Inspect rim of bowl to insure it is free of nicks,
cracks, or scratches. ●
Filter Element
Inspect for damage or deterioration. ●
Remove and replace.
Fuel Bowl
If contaminants are found, check more
frequently. ●
PART LIST
ITEM PART NUMBER PART DESCRIPTION QTY
1 V04-00308-02 Housing, Upper 1
2 V04-00308-07 Assembly, Drain 1
3 V04-00308-K Bowl, Amber – 3” 1
4 V04-00308-01 Element, Filter 1
5 V04-00308-05 O-Ring – 3/32CS x 2 1/2ID 1
6 V04-01300-08 O-Ring – 1/16CS x 5/16ID 1
7 ------------------ Plug, Pipe 1
8 V04-00308-03 Ring, Flat 1
9 V04-00308-K Kit, Replacement Bowl 1
10 V04-00308-04 Vent Plug & O-ring 1
Filter, Fuel
p/n V04-00308
Troubleshooting
Trouble Possible Cause Remedy
Fuel bowl leaking Deteriorated gasket Remove and
Housing cracked Remove and replace housing
Bowl rim cracked, nicked, ors cracked Remove and replace bowl
Gasket missing Replace gasket
Loose fuel bowl Tighten fuel bowl onto lter
Air leaking into system
(indicated by air bubbles
in bowl during operation)
Cracked component Inspect lter bowl, lter housing,
and gasket
Loose lter bowl Tighten fuel bowl onto fuel lter
Loose valve assembly Tighten valve assembly

9
Control Panel
4 8 14
3
1
12
2
9
10
13
11
CONNECTS TO PUMP
ASSEMBLY, CONTROL PANEL
2/27/2011
ITEM
NO.
PART NUMBER
PART DESCRIPTION
QTY.
1
4355H-00301
WELDMENT,CONTROL PANEL
1
2
F04-00411
BUSHING, STRAIN RELIEF
1
3
F04-00411
BUSHING, STRAIN RELIEF
2
4
F04-00451
GROMMET, RUBBER
4
5
F04-00615
TERM, SPLICE
4
6
F04-00616
TERM, INSULATOR
4
7
F04-00618
INSULATED SPADE
7
8
F04-00693
SWITCH, ROCKER
1
9
F04-00790
SWITCH, PRESSURE
1
10
F05-00168A
MODULE, RECTIFIER
1
11
FA5-00063
RELAY, AUTOMOTIVE
1
12
H04-13808
SCREW, MACHINE
2
13
H04-25000
SCREW, CAP
1
14
H06-25003
NUT, HEX
1
Assembly, Control Panel

10 Electrical Schematic
Electrical Schematic
PART NUMBER
DATE:
PART NUMBER
DRAWN BY:
RED
BLACK
WHITE
BROWN
YELLOW
BLUE
GREEN
PINK
ORANGE
ELECTRICAL
SCHEMATIC
ES-01835B
ES-01835B
09-28-15
LCL
BL K
RED
YEL
YEL
CAD
CELL
IGNITOR
TIMER
12 VDC
+
_
YEL
RED
BL K
WHT
RED
NOTES
:
1.) 20 AMP FUSE O N WAYNE BURNER ONLY.
2.) RED WIRE (SHOWN HERE OPPOSITE CAD CELL), IS NOT IN ANY WAYNE
B URNE R B UT , IS IN SOME BE CKETT BURNERS. THE Y ELL OW WI RE (SHOWN HERE
OPPOSITE CAD CELL) IS BLUE IN BECKETT BURNERS, AND THE OTHER RED WIRE
(FROM I GNITE R/ TIMER IS WHITE IN BECKETT BURNERS.
87
30
86
85 87A
** NOTE:
THE RELAY SPADE TERMINAL NUMBERS SHOWN IN THIS
DRAWING ARENOT VISIBLE ON THE RELAY. THEREFORE, TO
MAKE CORRECT WIRE CONNECTIONS, POSITION RELAY SO
SPADES CAN BE SEEN EXACTLY AS SHOWN HERE (3
VERTICAL, 2 HORIZONTAL), THEN MA KE WIRE
CONNECT IONS AS SHOWN.
RECTIFIER
RED
WHT
GRN BLK
ORG
BLK
BLK
WHT
RELAY
**
RED
BU RNE R
SWITCH
EN GI NE
REGULATOR
GREY
GREY
EN GI NE
STATO R
LE ADS
BLK
12 VDC
BATTE RY
P RE SS U RE
SWITCH
FUEL
SOLENOID
BU RNE R
MOTOR
ELECTRONIC
IGNITER
12 VDC
BRN
WHT
PURP
RED
BL K
RED
NC
NOCBLU
STARTER
SOLENOID
RED

11
Float Tank Assembly
Float Tank Assembly
5
8
9
12
11 4
10
1
7
2
6
ASSEMBLY, TANK - FLOAT
2/28/2008
ITEM
NO.
PART NUMBER
PART DESCRIPTION
QTY.
1
4120-10540P
ASSEMBLY, RESTRICTOR
1
2
5305A-04120
WELDMENT, TANK - FLOAT
1
3
AR14-00300
ROD,THREAD 1/4-20UNC X 3
1
4
C03-00216-4
VALVE, BALL - 3-WAY
1
5
C03-00620-Q
VALVE, FLOAT
1
6
C03-00622-B
BALL,FLOAT-PLASTIC
1
7
C04-00120
FILTER, SOAP SCREEN
1
8
C05-00273
ADAPTER, GARDEN HOSE
1
9
E04-00009-48
BUSHING, PIPE
1
10
E09-00002-P
PLUG, PIPE - NYLON
1
11
E15-R0006-4
NIPPLE, HEX
1
12
W02-10057-8
BARB, HOSE
1
21 6
3
5
1
7
Only Replaceable Part
Is The plunger With Seals
Float Ball and Stem Found
In The Assembly Where
Float Valve Used.
VALVE, FLOAT
p/n C03-00620-Q
ITEM
NO. PART NUMBER PART DESCRIPTION QTY.
1 -------------- HOUING-VALVE 1
2 -------------- ARM,PLUNGER 1
3 -------------- NUT,WING 1
4 -------------- ARM,BALL 1
5 C03-99620-Q PLUNGER 1
6 -------------- LINK,PLUNGER 1
7 --------------- ARM,PLUNGER 1
8 ---------------- WASHER, FIBER 1
9 ----------------- NUT, HEX 1

12 Water Pump
Water Pump
6
19
17
14
2
12
1
4
20
8
10
18
13
21
7
16
11
155
9
3
ASSEMBLY, PUMP
2/29/2008
ITEM
NO.
PART NUMBER
PART DESCRIPTION
QTY.
1
C03-00120
VALVE,BALL-1/4"MNPT x
1/4"FNPT
1
2
C03-00310-2
VALVE, METERING
1
3
C09-00008
VALVE, EASY START
1
4
E04-00005-48
BUSHING, PIPE
1
5
E04-00016-58
BUSHING, 3/8 - 1/4
1
6
E08-00006-48
ELBOW, PIPE
1
7
E08-00011-58
ELBOW, PIPE
1
8
E08-00017-48
ELBOW, STREET
1
9
E10-00005-4
TEE, PIPE
1
10
E10-00018-4
TEE, STREET
1
11
E10-00021-58
TEE, STREE - 3/8
2
12
E13-00010-48
NIPPLE, PIPE
1
13
E15-00010-48
NIPPLE, CLOSE - 1/2"NPT
1
14
K21-02214-1/4
ASSEMBLY, HOSE-OIL, DRAIN
1
15
K31-00900
HOSE, WATER
1
16
N07-00016-LH
PUMP,WATER-TS1511 4GPM
@3500PSI 1450RPM
1
17
N07-40046-P1
RAIL, PUMP - W/HOLES
1
18
W02-00033
CLAMP, HOSE
2
19
W02-10019-8
BARB, HOSE
2
20
W02-10030-8
BARB, HOSE
1
21
W02-10057-8
BARB, HOSE
1
NOTE:
Chemical Injector
Item # 2 adjusts
chemical intake
by turning
the valve knob
after opening
valve item #1

13
Water Pump
2 0
FLO W C O N TROLS
The Alkon Series J Flo w Control, Needle an d C heck V alv es offer substantially higher
flo w than an y oth er comp arable v alve in their size or pressure range. Alkon pioneered
th e t w o tap er needle and the in-line flo w p ath designs to provide the highest flo w
coupled w ith the most sensitive metering from full open to full closed.
In-LineFlow Controls, Needle& Check Valves
DESIG N FE A T U RES :
A. Aluminum controlknob permits adjustment of
flo w w ith v alve under pressure.
B. Locking set scre w on controlknob.
C. Brass retainer acts as a positive stop for needle
travel.
D. Buna-N sealstandard (V iton sealavailable) one-
piece back-up ring to prevent e xtrusion.
E. Heat treated, ground and polish ed 4 1 6 st ainless
steelneedle.
F. One-piece, high tensile brass forged body.
G. Four stage needle provides the most sensitive
flo w m etering from full closed to full open.
H. Large unobstructed orifices.
I.Stainless steelball acts against a lapped seat to
provide best sealing.
J. The stainless steelcage acts as a spring support
ball guide and ball stop. The spring is stainless
steelwire.
K. In-line check v alve has an orifice larger than the
nominalpipe siz e. Lo w pressure differential, no
chatter and lo w friction loss.
FEA TURES F ORDESIGN-IN Q U A LIT Y
•
Positive no-leak stem seal
•
Safe positive stop for needle travel
•
Precision calibrated dialto determine and allo w
a return to required flo w se ttings
•
Maximum O peratin g Pressure: 3, 0 0 0 PSI
•
2 PSI che ck cracking pressure
•
One piece forged housing
OPTIO N S
•
Nickelplating for service with corrosiv e media
•
Friction O-Ring for micrometer adjustment
•
Viton seals
•
British standard parallelpipe threads
•
Removable knob
N O T E:
Patents 3,421,547 and 3,441,2 49
Chemical Injector
16
Downstream Injector Operation
A downstream injector works by maintaining a certain psi
on the pump side of the injector by means of an orice
installed into the injector body. When the psi drops by at
least a 30% differential on the outlet side of the injector
it creates a vacuum draw that pulls your pre mixed
chemical solution into the injector body and mixes it with
the ow of water traveling through the injector and out
the hose and gun assembly of the pressure washer.
Operation:
1. Connect the chemical line & lter screen
onto the injector making sure the injector is
closed.
2. Place the suction lter into a container
chemical and attach the black low pressure
soap nozzle to the tip of the wand.
3. Start your pressure washer as normal
and turn the injector open. You are always
supposed to soap from the bottom up and
rinse from the top down.
4. When you are done applying cleaning
solution onto the surface, turn off the
chemical adjustable knob and replace the
soap nozzle with a 0º (red color) or 15º
(yellow color) nozzle to remove loosened
dirt.
You should never use anything but pressure washer
safe cleaning solutions. Use of other chemicals such
as bleach will damage seals and o-rings in the gun,
wand, hoses and pumps. What chemicals can be
used? Use only chemicals designed for pressure
washer use (pressure washer approved). They will
not damage your pressure washer, plus they are
biodegradable and environmentally friendly.
A. Control Knob
B. Locking set screw
C. Brass retainer
D. Buna-N o-ring seal
E. Needle valve
F. Housing
G. 4 stage needle
H. Orices
I. Stainless steel ball
J. Ball cage
K. Check valve
Down Stream Injector
Injector, Chemical - Downstream
p/n C03-00310-2
Injector, Chemical - Downstream

14 Pump Maintenance
22 Pump Maintenance
6
7
2
6
3
1
General
PACKING EXTRACTION KIT P/N Z09-00028
COMPLETE TOOL KIT P/N Z09-00021
Valve Service
1. Remove the plugs holding the valve assemblies.
2. Remove and discard o-rings from the plugs. Clean plugs with
solvent or soap and water. Allow to dry.
3. Using needle nose pliers, ngers, or hook shaped tool,
remove the valve assemblies from the head. Remove and
discard the o-rings from the valve assemblies and/or head.
Examine each valve assembly and discard damaged parts.
Refer to the PUMP BREAKDOWN for part numbers of any
replacement items.
4. Clean any accumulated debris from the valve cavities and
ush with water.
5. Wash the valve assemblies in clean water and rinse. While
still wet, test each valve assembly by sucking on the valve
seat. A properly sealing valve will allow a good vacuum to
be developed and maintained, while a malfunctioning valve
will not. Good valve assemblies should be set aside for
installation in step 7.
6. Malfunctioning valve assemblies must be replaced.
7. Lubricate a new o-ring with the pump crankcase oil and install
into valve cavity in the head. Install a good valve assembly
into the cavity as illustrated.
8. Lubricate a new o-ring with pump crankcase oil and place on
a plug cleaned in step 2 above.
9. Install a plug into the pump head. Tighten plug by hand.
10. Torque the plug to the value indicated in the TORQUE section
of the pump specications.
11. Repeat steps 7 through 11 for remaining valve assemblies.
Head Removal
1. Remove the cap screws holding the pump head to the
crankcase. A metric tool is required for this step. Be careful
not to lose the washer on each cap screw.
2. Remove the head by rotating the crankshaft and tapping
the head away from the crankcase with a soft mallet. Keep
rear surface of the head parallel to the front surface of the
crankcase to prevent binding on the plungers.
3. Once the head is removed, protect the plungers from damage.
Pump Maintenance
Pump Maintenance

15
Pump Maintenance
23
Pump Maintenance
Plunger Service
1. Remove pump head per HEAD REMOVAL.
2. Remove any packings and retainers left on the plungers by pulling them straight off.
3. Examine each plunger, looking for a smooth surface free of any scoring, cracks, or pitting. Any
defective plungers should be removed per PLUNGER REMOVAL.
4. Discard and replace any defective plungers.
5. Reinstall the plunger per PLUNGER INSTALLATION.
6. Reinstall head per HEAD INSTALLATION.
Plunger Removal
NOTE: When the plunger screw is removed, it is important to install new o-ring, anti-extrusion, and copper
washers.
1. When the plunger screw is removed, it is important to install a new o-ring, anti-extrusion, and
copper washers.
2. Remove the plunger retaining screw by turning counterclockwise. Remove and replace copper
washer.
3. Remove and discard o-ring and anti-extrusion ring from retainer screw.
4. Remove the plunger from the cross head and examine it for cracks, scoring, or pitting.
5. Remove and discard copper inger washer, clean with solvent and allow to dry.
Plunger Installation
1. Install the copper inger washer onto the cross head.
2. Slide the plunger onto the crosshead.
3. Lubricate an o-ring with crankcase oil and install into the groove on the plunger screw. Install the
anti-extrusion ring into the groove next to the o-ring. NOTE: The o-ring should be nearest the
screw head and the anti-extrusion ring nearest the threads.
4. Apply a drop of thread sealant to the threads of the retainer screw.
5. Thread the plunger retainer screw into the cross head making sure the copper at washer is
installed onto the screw.
6. Torque the plunger retainer screw to the value indicated in the torque section of the pump
specications.
Plunger Service, Removal, Installation

16 Pump Maintenance
24 Pump Maintenance
Packing Service
1. Remove the head per PUMP HEAD REMOVAL.
2. Remove any packings and female adapters left on the plungers by pulling them straight off. Insert
proper packing extractor onto the extractor hammer. Insert packing extractor and tool through the
packings and adapters remaining in the head. Tighten the hammer and remove the remaining
items in the head. Remove packings and o-rings from adapters. Discard the o-rings and packings.
3. Clean the packing canities in the head and rinse with clean water.
4. Clean exposed plungers. Clean male and female adapters with soap and water and allow it to dry.
5. Examine male and female adapters, discard worn items. Trial t the female adapters into the head
checking for binding or damage. Discard and replace damaged items
6. Lubricate packing cavities in the head and all packings and adapters with pump crankcase oil.
7. Lay head on the bench with packing cavities up. Install one male adapter in each cavity with the
at side down.
8. Install one v-packing into each cavity with the lips pointing down. A packing insertion tool of the
appropriate size is recommended for this operation.
9. Install the re-stop ring with the lips pointing down.
10. Install a front female adapter into each cavity with the at side up. Make certain the adapter goes
all the way down into the cavity.
11. Install the low pressure packing with the at side down.
12. Install the rear female adapter into each cavity with the lips pointing down.
13. Lubricate o-rings with pump crankcase oil and install one into the groove of each adapter.
14. Install one adapter and o-ring into each cavity with the at side up. Each adapter and o-ring
assembly should push into the head to approximately 1/16 inch of being ush with the surface of
the head. Only hand pressure should be required to perform this operation. This step is VERY
IMPORTANT. If the rear female adapter does not t is obtained, proceed to step 16. If a proper t
is not obtained, remove the female adapters from the offending cavity and reinstall items per steps
8 through 15.
15. Install head per HEAD INSTALLATION.
Packing Service
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