Kärcher HD 2.3/24 P User manual

9.801-629.0
MODEL # ORDER #
HD 2.3/24 P 1.575-100.0
HD 2.5/27 P 1.575-101.0
HD 3.0/30 P 1.575-102.0
HD 3.8/35 P
HD 3.5/40 P
1.575-104.0
1.107-223.0
PC3-24324 1.107-005.0
PC3-27324 1.107-006.0
PC3-30124 1.107-007.0
PC4-35324 1.107-008.0
PC4-40324 1.107-224.0
MODEL # ORDER #
DB-232439 1.107-031.0
DB-252739 1.107-032.0
DB-303039 1.107-033.0
DB-383539 1.107-034.0
DB-354039 1.107-222.0
DG-232437 1.107-138.0
1.107-244.0
DG-252737 1.107-139.0
1.107-245.0
DG-303037 1.107-140.0
DG-383537 1.107-141.0
DG-354037 1.107-225.0
1.107-246.0
OILALERT
WHENOIL LEVEL LOW,
ENGINESTOPS IMMEDIATELY.
READOWNER'S MANUAL BEFORE OPERATION.
LIRELE MANUEL D'UTILISATEUR AVANT USAGE.
VORINBETRIEBNAHME UNBEDINGT
BEDIENUNGSANLEITUNGDURSCHLESEN.
NOUTILIZAR SIN ANTES NO HABER LEIDO EL MANUAL.
CHAUD!
SERVICE MANUAL

3
CONTENTS
CART SERIES • 9.801-629.0 • Rev. 07/17
Model Number ______________________________
Serial Number ______________________________
Date of Purchase ____________________________
The model and serial numbers will be found on a decal attached
to the pressure washer. You should record both serial number and
date of purchase and keep in a safe place for future reference.
Exploded View ......................................................................................... 4
Exploded View Parts List ...................................................................... 5-6
Specications........................................................................................... 6
Gun and Wand Exploded View and Parts List ......................................... 7
LP3035G1 Pump Exploded View and Parts Lisst................................. 8-9
S.3 Pump Exploded View and Parts List .......................................... 10-11
UU1 Unloader Exploded View and Parts List ........................................ 12
VBT Unloader Exploded View and Parts List......................................... 13
Troubleshooting ................................................................................ 14-15
Preventative Maintenance ..................................................................... 16
Oil Change Record ................................................................................ 16

CART SERIES • 9.801-629.0 • Rev. 07/17
OPERATOR’S MANUAL PRESSURE WASHER
4
CHAUD!
OILALERT
WHENOIL LEVEL LOW,
ENGINESTOPS IMMEDIATELY.
READOWNER'S MANUAL BEFORE OPERATION.
LIRELE MANUEL D'UTILISATEUR AVANTUSAGE.
VORINBETRIEBNAHME UNBEDINGT
BEDIENUNGSANLEITUNGDURSCHLESEN.
NOUTILIZAR SIN ANTES NO HABER LEIDO EL MANUAL.
T       S 
C         
   .O TE M 
CS TC S F A D V     .
AS A M   R. TO S 
CL F A  L  R
R F P   R. 
WARNING
.. 
EXPLODED VIEW
37
44
34
35 36
23
26
14
33
25
26
28
30
31
32
33
6
5
5
2
2
3
3
8
8
11
15
13
7
7
18
17
16
21
1
20
45
8
11
11
11
52
53 4
9
9
44 43
42
10
23
22
24
50
41
40
39 50
49
19
38
22
12
Pump Assy w/E-Z Start
Valve for 3000 & 3500
PSI Models
27
27
29
27
48
47
18
46
46
42
54 3
5
4
2
Pump Assy for
2400 & 2700 PSI
Models
4
50
6
6
51
Pump for
3500 PSI
Models
Pump Assy
w/ EZ Start for
4000 PSI Models
2
2

CART SERIES • 9.801-629.0 • Rev. 07/17
5
PRESSURE WASHER
OPERATOR’S MANUAL
EXPLODED VIEW PARTS LIST
ITEM PART NO. DESCRIPTION QTY
1 Engine, See Specications Page
2 Pump, See Specications Page
3 Unloader, See Specications Page
4 9.804-025.0 Pump Protector, 1/4" 145° 1
8.707-256.0 Pump Protector,1/2" 1
(4000 PSI Models Only)
5 9.802-146.0 Swivel, 1/2" MP x 3/4" GHF 1
6 9.802-171.0 Coupler 3/8", Plug, Male,
Steel/Zinc 1
9.802-170.0 Coupler, 3/8", Plug, Female
Steel/Zinc (3000 & 3500 PSI Models) 1
7 9.802-254.0 Hose, 1/4" Push-on 14 in
(E-Z-Start Models Only )
8 8.706-955.0 Hose, Barb, 1/4" Barb x 1/8" MP,
90° (3000 & 3500 PSI Models) 1
8.706-958.0 Hose Barb, 1/4' Barb x 1/4" Pipe
(3000, 3500 & 4000 PSI) 1
9 9.802-190.0 Valve, E-Z Start 3/8" MPT x 1/8"
FPT (3000, 3500 & 4000 PSI) 1
10 9.803-125.0 Base, CW Direct, Black 1
8.912-065.0 Base, CW Direct Red 1
(DB Models Only)
11 6.390-126.0 Clamp, Hose (E-Z Start Models) 2
12 9.802-722.0 Bolt, 3/8" x 1-1/4" NC, HH 4
(3000, 3500 & 4000 PSI Only)
8.733-007.0 Bolt, 5/16"-24 x 3/4" 4
13 9.802-216.0 Injector, Detergent, Assembly 1
(All Models)
9.802-216.0 Injector, Chemical, Non-Adjust 1
8.707-057.0 Strainer, Plastic, 1/4" Hose Barb 1
9.802-251.0 Tube, 1/4" x 1/2" Clear Vinyl 6 ft.
6.390-126.0 Hose Clamp 2
14 9.800-723.0 Label, Instructions 1
8.753-777.0 Label, Instructions 1
(244.0, 245.0, 246.0)
15 Hose High Pressure, See Specications Page
16 Gun, See Specications Page
17 Wand, See Specications Page
18 Nozzle Size, See Page 18 For Proper Size
8.904-153.0 Nozzle Kit 3.0 (2400, 2700 PSI) 1
8.712-331.0 Nozzle, 3.0 0° Red 1
8.712-333.0 Nozzle, 3.0 15° Yellow 1
8.712-334.0 Nozzle, 3.0 25° Green 1
8.712-335.0 Nozzle, 3.0 40° White 1
8.904-154.0 Nozzle Kit 3.5 (3000, 4000 PSI) 1
8.712-337.0 Nozzle, 3.5 0° Red 1
8.712-338.0 Nozzle, 3.5 25° Green 1
8.712-339.0 Nozzle, 3.5 40° White 1
8.904-156.0 Nozzle Kit 4.0 (3500 PSI) 1
8.712-345.0 Nozzle, 4.0 0° Red 1
8.712-346.0 Nozzle, 4.0 15° Yellow 1
8.712-347.0 Nozzle, 4.0 25° Green 1
8.712-348.0 Nozzle, 4.0 40° White 1
8.712-398.0 Nozzle, Compl, QCEM-6540,
Brass (All Models) 1
19 9.803-097.0 Axle, 5/8" x 20.125" Long 1
ITEM PART NO. DESCRIPTION QTY
20 9.800-006.0 Label, HOT 1
21 9.802-713.0 Bolt, 5/16" x 1-1/2", NC HH 4
(2400, 2700 PSI Models)
9.802-727.0 Bolt, 3/8" x 1-3/4" Tap 4
(3000, 3500, 4000 PSI Models)
22 9.802-807.0 Washer, 3/8" SAE, Flat 6
23 9.197-003.0 Nut, 3/8" ESNA, NC 6
24 9.802-728.0 Bolt, 3/8" x 2" NC, HH 4
25 9.803-114.0 Retainer Bracket, Handle, Blk 2
8.912-061.0 Retainer Braket, Handle, Red 2
(DB Models Only)
26 9.802-773.0 Nut, 1/4" ESNA, NC 6
27 9.802-802.0 Washer, 1/4" Flat 6
28 9.802-064.0 Grommet, Nozzle Holder 5
29 9.802-788.0 Nut, 5/16" Whiz Loc Flange 2
30 8.925-057.0 Handle, Grab, Grey, OS 1
8.719-938.0 Handle, Grab, Red 1
(DB Models Only)
31 9.803-126.0 Plate, Warning, Black 1
32 9.803-098.0 Hanger, Hose/Wand 1
33 9.802-706.0 Bolt, 1/4"-20 x 1-3/4", Cge, Zc 6
34 8.925-058.0 Handle, Lower Grab, Grey, OS 1
8.719-937.0 Handle, Lower Grab, Red 1
(DB Models Only)
35 9.802-066.0 Pad, Soft Rubber 2
36 9.802-817.0 Washer, 3/8" x 1" Steel 2
37 9.802-730.0 Bolt, 3/8" x 2-1/2" HH, Grd. 5 2
38 9.802-712.0 Bolt, Carriage, 5/16" x 1-3/4" 4
39 8.718-980.0 Washer, 5/16" Flat 4
40 9.802-776.0 Nut, 5/16" ESNA, NC 4
41 8.925-059.0 Handle, Bumper, Grey, OS 1
8.719-939.0 Handle, Bumper, Red 1
(DB Models Only)
42 9.802-103.0 Bushing, 5/8" Snap 2
43 8.754-186.0 Qh Wheel Assy, 10" 2
Gray Steel Rim W/Tube
44 9.802-782.0 Collar, 5/8" Bore Shaft 2
45 9.800-008.0 Label, Cool Engine 1
Before Filling
46 9.802-810.0 Washer, 5/8" Flat 2
47 9.802-958.0 Key, 0.185 Sqr x 1.75" 1
(2400, 2700 PSI Models)
9.802-959.0 Key, 0.247 SQR X 2.125" 1
(3000, 3500, 4000 PSI Models)
48 9.800-049.0 Label, Manufacturer's Cleaning 1
Solution
49 9.802-776.0 Nut, 5/16" ESNA, NC 4
(2400, 2700 PSI Models)
9.197-003.0 Nut, 3/8" ESNA, NC 4
(3000, 3500, 4000 PSI Models)

CART SERIES • 9.801-629.0 • Rev. 07/17
OPERATOR’S MANUAL PRESSURE WASHER
6
SPECIFICATIONS
Machine Pressure Nozzle Hose Pump Pump Unloader Engine
Model GPM (PSI) Size Part # Model Part # Part # Engine Part #
HD 2.3/24 P 2.3 2400 3.0 8.711-722.0 KP2535G 8.923-785.0 8.754-696.0 GC160 (163cc) 9.802-316.0
HD 2.5/27 P 2.5 2700 3.0 8.711-722.0 KP2535G 8.923-785.0 8.754-696.0 GX200 (196cc) 9.802-317.0
HD 3.0/30 P 3.0 3000 3.5 8.711-722.0 KP3035G1 8.923-787.0 9.754-696.0 GX270 (270cc) 8.750-680.0
HD 3.8/35 P 3.8 3500 4.0 8.711-722.0 KS4040GR.3 8.751-195.0 9.175-018.0 GX390 (390cc) 8.750-580.0
HD 3.5/40 P 3.5 4000 3.5 8.711-722.0 KS3540GR.3 8.751-194.0 9.803-900.0 GX390 (390cc) 8.750-580.0
Machine Pressure Nozzle Hose Pump Pump Unloader Engine
Model GPM (PSI) Size Part # Model Part # Part # Engine Part #
DB-232439 2.3 2400 3.0 8.739-107.0 HP2535G 8.923-771.0 8.754-696.0 GC160 (163cc) 9.802-316.0
DB-252739 2.5 2700 3.0 8.739-107.0 HP2535G 8.923-771.0 8.754-696.0 GX200 (196cc) 9.802-317.0
DB-303039 3.0 3000 3.5 8.739-107.0 HP3035G1 8.923-773.0 8.754-696.0 GX270 (270cc) 8.750-680.0
DB-383539 3.8 3500 4.0 8.739-183.0 HS4040GR.3 8.751-184.0 9.175-018.0 GX390 (390cc) 8.750-580.0
DB-354039 3.5 4000 3.5 8.739-183.0 HS3540GR.3 8.751-183.0 9.803-900.0 GX390 (390cc) 8.750-580.0
ITEM PART NO. DESCRIPTION QTY
50 8.718-980.0 Washer, 5/16" Flat 8
(2400, 2700 PSI Models)
9.802-807.0 Washer, 3/8" Flat 12
(3000, 3500, 4000 PSI Models)
51 8.751-096.0 Label, Regulation 4442.6 1
52 8.706-207.0 Elbow, 3/8", Str 90 Deg, Steel 1
(4000 PSI Models)
53 8.706-940.0 Hose Barb 1/4" x 1/8" Npt Male 1
(4000 PSI Models)
54 9.802-170.0 Coupler, 3/8" Plug, Female 1
Steel/Zinc
Machine Pressure Nozzle Hose Pump Pump Unloader Engine
Model GPM (PSI) Size Part# Model Part # Part # Engine Part #
PC3-24324 2.3 2400 3.0 8.739-380.0 LP2535G 8.923-757.0 8.754-696.0 GX160 (163cc) 9.802-316.0
PC3-27324 2.5 2700 3.0 8.739-380.0 LP2535G 8.923-757.0 8.754-696.0 GX200 (196cc) 9.802-317.0
PC3-30124 3.0 3000 3.5 8.739-380.0 LP3035G1 8.923-759.0 8.754-696.0 EX27 (265cc) 8.713-483.0
PC4-35324 3.8 3500 4.0 8.739-213.0 LS4040GR.3 8.751-177.0 9.175-018.0 GX390 (390cc) 8.750-580.0
PC4-40324 3.5 4000 3.5 8.739-213.0 LS3540GR.3 8.751-176.0 9.803-900.0 GX390 (390cc) 8.750-580.0
Machine Pressure Nozzle Hose Pump Pump Unloader Engine
Model GPM (PSI) Size Part # Model Part # Part # Engine Part #
DG-232437 2.3 2400 3.0 8.711-722.0 SP2535G 8.923-799.0 8.754-696.0 GC160 (163) 9.802-316.0
DG-252737 2.5 2700 3.0 8.711-722.0 SP2535G 8.923-799.0 8.754-696.0 GX200 (196) 9.802-317.0
DG-303037 3.0 3000 3.5 8.711-722.0 SP3035G1 8.923-801.0 8.754-696.0 GX270 (270) 8.750-680.0
DG-383537 3.8 3500 4.0 8.711-722.0 KS4040GR.3 8.751-195.0 9.175-018.0 GX390 (390) 8.750-580.0
DG-354037 3.5 4000 3.5 8.711-722.0 SS3540GR.3 8.921-766.0 9.803-900.0 GX390 (390) 8.750-580.0
EXPLODED VIEW PARTS LIST (CONT.)

CART SERIES • 9.801-629.0 • Rev. 07/17
7
PRESSURE WASHER
OPERATOR’S MANUAL
HOSE & SPRAY GUN EXPLODED VIEW
HOSE & SPRAY GUN EXPLODED VIEW PARTS LIST
1
2
2
3
3
ITEM PART NO. DESCRIPTION QTY
1 Hose High Pressure, See Specications page 6 1
2 8.754-769.0 MV925 GUN (HD & DG, Except 4000 PSI Models) 1
9.802-223.0 Gun, Sk2, 3/8" Inlet, Lance 22mm, Coupler (PC Models, Except 4000 PSI Models) 1
8.751-269.0 AL12 Eagle3 Trigger Gun (DB , Except 4000 PSI Models) 1
8.750-247.0 Gun, M407 (All 4000 PSI Models Only) 1
3 9.802-219.0 Wand Assy, Side Grip w/1/4" Coupler (All HD & DG Models, Except 4000 PSI modesls) 1
9.802-220.0 Wand, 18" M22 x 1/4" QC (PC3, PC4 & DB Models, Except 4000 PSI Models) 1
8.783-040.0 Wand, 44" Zinc Plated, Handle & Coupler (All 4000 PSI Models) 1
s Not shown

CART SERIES • 9.801-629.0 • Rev. 07/17
OPERATOR’S MANUAL PRESSURE WASHER
8
LP3035G1 PUMP EXPLODED VIEW
LP3035G1 PUMP EXPLODED VIEW PARTS LIST
8.923-759.0 LP3035G1
8.923-773.0 HP3035G1
8.923-787.0 KP3035G1
8.923-801.0 SP3035G1
ITEM PART NO. DESCRIPTION QTY
1 8.754-841.0 Crankcase 1
2 8.754-846.0 O-ring Ø1.78 X 72.75 1
3* See Kits Below Plunger Oil Seal 3
4* See Kits Below O-ring Ø1.78 X 26.7 3
5* See Kits Below Washer, Pressure Ring 3
14 mm
6* See Kits Below U-Seal, 14 mm 3
7* See Kits Below Pressure Ring, 14 mm 3
8* See Kits Below U-Seal, 14 mm 3
9 9.803-199.0 Washer, Copper G1/2 1
10 9.802-926.0 Plug, Brass G1/2 1
11 8.754-853.0 Manifold 1
12* 8.717-233.0 O-ring Ø1.78 X 15.6 6
13* See Kits Below Valve Assembly 6
14* 9.803-948.0 O-ring Ø1.78 X 18.77 6
15 9.803-949.0 Valve Plug 6
16 8.754-854.0 Bolt, Manifold M14 x 40 2
17 8.754-850.0 Washer, Lock 2
18 9.803-198.0 Washer, Cooper G3/8 1
ITEM PART NO. DESCRIPTION QTY
19 8.707-262.0 Plug, Brass G3/8 1
20* See Kits Below Valve Seat 6
21* See Kits Below Valve Plate 6
22* See Kits Below Valve Spring 6
23* See Kits Below Valve Cage 6
24 9.802-939.0 Screw, M6 X 16 8
25 8.717-137.0 Bearing Cover 2
26 9.803-954.0 Bearing Seal 1
27 8.754-843.0 Seal Spacer, Crankshaft 1
28 9.802-914.0 Snap Ring, 25 mm 1
29 9.803-955.0 Bearing, Ball 1
30 8.754-828.0 Shaft, 1" Hollow 3035G1 1
31 8.754-219.0 Oil Dipstick 1
32 8.754-840.0 Bearing Needle 1
33 8.754-826.0 Seal, Crankshaft 1
34 9.802-889.0 Washer 4
35 9.803-243.0 Screw 4
36 9.803-215.0 Washer 6mm 10
8
6
13
1
2
3
4
5
7
9
10
11
12
13
14
15
16
17
18
19 12
14
15
20
21
22
23
24
25
26
27
28
29
30 31
32
33
42
43
44
45
46
47
48
49
41
50
51
52
53
19
54
24
39
38
37
34
35
36
40
41
TORQUE
SPECS
Item # Ft.-lbs
15 65
16 55
24 8
40 10
43 10
50 10

CART SERIES • 9.801-629.0 • Rev. 07/17
9
PRESSURE WASHER
OPERATOR’S MANUAL
LP3035G1 PUMP EXPLODED VIEW
ITEM PART NO. DESCRIPTION QTY
37 9.803-244.0 Screw 4
38 89.803-217.0 Washer 4
39 9.803-216.0 Washer 4
40 8.752-824.0 Screw, M6 x 20 4
41 9.803-218.0 Washer, 6 mm 10
42 8.754-864.0 Flange, Engine 1
43* 8.754-855.0 Bolt, Plunger 3
44* 8.754-092.0 Spacer, Copper 3
45* 8.754-849.0 Plunger, 14 mm 3
46* 9.803-962.0 Spacer, Copper 3
47 8.754-827.0 Plunger Rod 3
48 9.803-965.0 Connecting Rod Pin 3
49 9.803-966.0 Connecting Rod 3
50 8.933-020.0 Screw, Connecting Rod 6
51 8.754-847.0 O-ring Ø2.62 X 111.62 1
52 8.754-842.0 Cover, Crankcase 1
53 9.803-906.0 O-ring Ø1.78 X 14 1
54 9.803-202.0 Sight Glass, G3/4 1
* Available in kit (See below)
REPAIR KIT
NUMBER 8.754-860.0 8.754-861.0 8.754-862.0 8.754-859.0 9.803-937.0
KIT DESCRIP-
TION
Plunger Seal
14 mm
Complete
Seal Packing 14 mm Plunger 14 mm Complete Valve
Plunger Oil
Seals
ITEM NUM-
BERS
INCLUDED
4, 6, 8 4, 5, 6, 7, 8, 43, 44, 45, 46 12, 13, 14, 3
NUMBER OF
CYLINDERS KIT
WILL SERVICE
3 1 1 6 3

CART SERIES • 9.801-629.0 • Rev. 07/17
OPERATOR’S MANUAL PRESSURE WASHER
10
S.3 PUMP EXPLODED VIEW
8.751-195.0 KS4040GR.3
8.751-177.0 LS4040GR.3
8.751-184.0 HS4040GR.3
8.751-194.0 KS3540GR.3
8.751-176.0 LS3540 GR.3
8.751-183.0 HS3540GR.3
8.921-766.0 SS3540GR.3
S.3 PUMP EXPLODED VIEW PARTS LIST
TORQUE
SPECS
Item # Ft.-lbs
14 75
15 30
24 7.6
38 10
46 7
56 13
ITEM PART NO. DESCRIPTION QTY
1 8.751-217.0 Crankcase 1
2* See Kit Below Plunger Oil Seal 3
3* See Kit Below O-Ring Ø1.78 x 31.47 3
4* See Kit Below Pressure Ring 3
5* See Kit Below U-Seal, 15mm 3
6* See Kit Below Intermed. Ring 15mm 3
7* See Kit Below U-Seal, 15mm 3
8 9.803-199.0 Copper Washer 1/2" 1
9 9.802-926.0 Brass Plug, 1/2" 1
10 8.751-218.0 Manifold Housing 1
11* 9.803-191.0 O-Ring Ø2.62 x 17.13 6
12* See Kit Below Valve Assembly 6
13* 9.803-193.0 O-Ring Ø2.62 x 20.29 6
14 9.802-928.0 Valve Plug 6
15 9.802-938.0 Manifold Stud Bolt 8
16 9.802-884.0 Washer 8
17 9.803-198.0 Copper Washer 3/8" 1
18 9.802-925.0 Brass Plug 3/8" 2
23 9.803-201.0 Washer, M6 x 16 4
24 9.802-939.0 Hexagonal Screw 9
25 9.803-184.0 Closed Bearing Housing 1
ITEM PART NO. DESCRIPTION QTY
26 8.717-225.0 O-Ring Ø 2.62 x61.6 1
27 9.802-914.0 Snap Ring 1
28 9.803-168.0 Double Row Ball Bearing 1
29 9.803-151.0 Crankshaft (3540G.3) 1
9.803-152.0 Crankshaft (4040G.3) 1
30 9.802-945.0 Set Screw 1
31 9.802-921.0 Oil Dip Stick 1
32 9.804-581.0 O-Ring Ø 3.53 x 55.56 1
33 9.803-161.0 Needle Roller Bearing 1
34 8.751-230.0 Gasket 1
35 8.717-544.0 Screw, Set 1
36 9.803-183.0 Engine Flange 1
38 9.803-240.0 Flange Screw 4
39 9.803-142.0 Crankshaft Seal 1
41 9.803-221.0 Spring Washer 4
46* See Kit Below Plunger Nut, M6 3
47* See Kit Below Washer, Copper, 9.2 x 13.5 3
48* See Kit Below Plunger, 15mm 3
49* See Kit Below Copper Spacer 3

CART SERIES • 9.801-629.0 • Rev. 07/17
11
PRESSURE WASHER
OPERATOR’S MANUAL
S.3 PUMP EXPLODED VIEW PARTS LIST (CONT.)
ITEM PART NO. DESCRIPTION QTY
50* See Kit Below O-Ring Ø1.78x5.28 3
51* See Kit Below Teon Ring 3
52 8.751-225.0 Plunger Rod 3
53 8.751-228.0 Connecting Rod Pin 3
54 9.803-158.0 Connecting Rod 3
55 9.803-218.0 Spring Washer 6
56 9.803-238.0 Connecting Rod Screw 6
57 8.933-016.0 O-Ring 2.62 x 126.67 1
58 8.751-229.0 Crankcase Cover 1
59 9.803-197.0 O-Ring, Ø 1.78 x 14 1
60 9.803-202.0 Sight Glass, G3/4 1
* Part available in kit (See below)
REPAIR KIT NUMBER 8.725-358.0 8.725-359.0 8.933-023.0 9.802-603.0 9.802-609.0
KIT DESCRIPTION
Plunger U-Seal
15mm
Complete
U-Seal Packing 15mm Plunger 15mm Complete Valve
Plunger Oil
Seals
ITEM NUMBERS
INCLUDED 3, 5, 7 3, 4, 5, 6, 7 46, 47, 48, 49, 50, 51 11, 12, 13 2
NUMBER OF CYLINDERS
KIT WILL SERVICE 3 1 1 6 3

CART SERIES • 9.801-629.0 • Rev. 07/17
OPERATOR’S MANUAL PRESSURE WASHER
12
UU1 UNLOADER EXPLODED VIEW
UU1 UNLOADER EXPLODED VIEW PARTS LIST
ITEM PART # DESCRIPTION KIT QTY
1 8.751-394.0 Piston Housing D 1
2 Piston C, D 1
3 Piston O-Ring Back Up A, D 1
4 8.749-796.0 Main Block 1
5 9.152-372.0 Piston Ring D 1
6 Ball Seat C, D 1
7 O-Ring 10.5 ID x 1.5 CS A,C,D 1
8 Plunger B 1
9 9.152-016.0 Plunger Housing 1
10 Bypass Spring C, D 1
11 9.149-001.0 Low Pressure Port 1
12 9.152-017.0 Sliding Connector, 30mm 1
8.762-005.0 Sliding Connector, 40mm, Long 1
13 9.149-002.0 Sliding Connector H 1/2" 1
9.149-005.0 Sliding Connector H 3/8" 1
14 9.196-011.0 Plug 5/8 -18 UNF D 1
15 O-Ring 12 ID x 2 CS A, D 2
16 O-Ring 6 ID X 2 CS A, D 1
ITEM PART # DESCRIPTION KIT QTY
17 9.149-006.0 Sliding Connector Guide 1
18 O-Ring Backup A, D 1
6 x 1.45 x 1.68
19 Ball Housing Assy C, D 1
20 O-Ring 6.75 x 1.78 BN80 A, D 1
21 Spring Seat C, D 2
22 Plunger Spring B 1
23 8.917-699.0 Banjo Bolt 1/2" Short 1
8.917-700.0 Banjo Bolt 1/2"-1/4" NPT Short 1
24 8.917-698.0 Banjo Bolt 3/8" Short 1
25 9.802-893.0 Seal Washer 3/8" 2
26 9.803-921.0 Seal Washer 1/2" 2
9.802-893.0 Seal Washer 3/8" 2
27 O-Ring 15 ID x 2CS A,B,D 3
28 8.706-865.0 Plug, 1/4" Countersunk 1
Kit A 9.104-038.0 O-Ring Repair Kit
Kit B 9.104-039.0 Outlet Kit
Kit C 9.104-040.0 Stem Basic Kit
Kit D 8.920-045.0 UU1 Complete Stem Kit
9.175-018.0
UU1 3500PSI, UNIVERSAL UNLOADER (SPARE) 21
2
3
20
16
18
5
15
19
6
7
25
4
8
22
27
9
15
12
17
11
27
23
13
26
26
24
25
27
1
10
14
21
28
23

CART SERIES • 9.801-629.0 • Rev. 07/17
13
PRESSURE WASHER
OPERATOR’S MANUAL
ITEM PART # DESCRIPTION KIT QTY
1* 8.754-929.0 Stem C 1
2* 9.803-912.0 Backup Ring A 1
3* 8.754-930.0 O-ring, Ø2.62 x 6.02 A 2
4 8.730-882.0 Stem Connector 1
5* 9.803-193.0 O-ring, Ø2.62 x 20.24 A 1
6* 9.803-908.0 Backup Ring A 1
7 9.803-907.0 Guide Bushing 1
8* 9.803-906.0 O-ring, Ø1.78 x 14 A 1
9* 8.754-959.0 Ball SubAssembly C 1
10* 8.754-933.0 Seat C 1
11* 8.754-934.0 O-ring, Ø1.78 x 12.42 A,C 1
12 8.754-935.0 Valve Body 1
13 9.802-893.0 Seal Washer 3/8 1
14 9.803-919.0 Banjo Bolt 3/8 1
15* 8.754-936.0 O-ring, Ø2.62 x 10.78 A 1
16 9.803-920.0 Banjo Bolt, 1/2, w/1/4" Port 1
VBT UNLOADER EXPLODED VIEW
VBT UNLOADER EXPLODED VIEW PARTS LIST
ITEM PART # DESCRIPTION KIT QTY
17 9.803-914.0 Seal Washer 1/2) 1
18 8.754-937.0 Bypass Manifold 1
19 9.802-892.0 Outlet Connector 3/8 MPT 1
20* 9.803-191.0 O-ring, Ø2.62 X 17.13 A,B 1
21* 8.933-017.0 Poppet Spring B 1
22* 8.754-939.0 Poppet B 1
23* 8.754-940.0 O-ring, Ø3 x 6 A,B 1
24* 8.754-961.0 Plate C 1
25* 8.933-018.0 Spring 1500-4000 PSI C 1
26 8.933-021.0 Set Screw 1
27 9.803-925.0 Nut 1
28 9.803-926.0 Knob, Brass, Unloader 1
* Included in Kit
Kit A 8.754-941.0 O-Ring Repair Kit
Kit B 8.754-942.0 Outlet Repair Kit
Kit C 8.754-957.0 Stem Repair Kit
8.754-696.0
UNLOADER, VBT BANJO 1/2M 3/8M, 3000PSI (SPARE)

CART SERIES • 9.801-629.0 • Rev. 07/17
PRESSURE WASHER Troubleshooting Guide
14
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
LOW OPERATING
PRESSURE
Insufcient water supply. Closed
faucet. Inlet hose kinked
Use larger garden hose; clean inlet water
screen. Open faucet.
Clogged inlet hose strainer Check plumbing system for leaks. Re-tape
leaks with Teon tape.
Faulty or improperly adjusted
unloader valve
Adjust unloader for proper pressure. Install
repair kit when needed. Contact local dealer.
Worn packing in pump Contact local dealer.
Machine has been stored in
freezing temperatures
Thaw out machine completely, including
hose, spray gun and wand.
Slow engine RPM Contact local dealer.
FLUCTUATING
PRESSURE
Worn or dirty pump valves Contact local dealer.
Nozzle is obstructed Blow out or remove debris with ne needle.
Pump sucking air, inlet hose
leaking
Check all pump lines and connections.
PRESSURE LOW
AFTER PERIOD OF
NORMAL USE
Nozzle worn Replace nozzle.
Unloader valve worn Replace unloader valve.
ENGINE WILL NOT
START OR STOPS
WHILE OPERAT-
ING
Low oil shutdown Fill engine with oil.
Out of gas Fill fuel tank.
Water in gasoline Drain gas tank; ll with clean fuel.
ENGINE IS
OVERLOADED
Nozzle partially blocked Clean nozzle.
Excessive pressure from high
engine RPM
Adjust engine throttle to lower RPM.
WATER OR OIL
LEAKING FROM
BOTTOM OF PUMP
A small amount of leaking is nor-
mal
If excessive leaking occurs, Contact local
dealer.
PRESENCE OF
WATER
IN PUMP OIL
Water sprayed at machine Change oil. Direct spray away from ma-
chine.
High humidity in air Check and change oil twice as often.
Piston packing worn. Oil seal
worn.
Contact local dealer.

CART SERIES • 9.801-629.0 • Rev. 07/17
15
PRESSURE WASHER Troubleshooting Guide
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
ENGINE
OPERATES FOR
15 MIN. THEN
STOPS
Not enough gas or engine oil Fill tank with gas. Check oil level.
Vapor lock developed by heat
of day
Keep gas tank full to avoid vapor locking.
Obstruction in fuel lter Clean or replace fuel lter.
ENGINE LACKS
POWER
Dirty air lter Replace air lter.
ENGINE FALTERS Choke is opened too soon Move choke to halfway position until engine
runs smoothly.
WATER DRIPPING
FROM
UNDER PUMP
Piston packing worn Contact local dealer.
O-Ring plunger retainer worn Contact local dealer.
Cracked piston Contact local dealer.
OIL DRIPPING Oil seal worn or damaged Contact local dealer.
WATER LEAK-
ING FROM PUMP
PROTECTOR
Spray gun closed with machine
running 5 minutes or longer
Open spray gun or turn off machine.
Excess water supply pressure Place a pressure regulator at end of 50' garden
hose.
NO DETERGENT Detergent suction tube not
properly connected to machine
Check connection.
Detergent is too thick Dilute detergent. For best results, use manufac-
turers detergent.
Detergent lter valve is at low-
est setting
Set detergent lter valve to a higher setting.
Filter on detergent suction tube
is clogged
Run warm water through lter to remove debris.
Damaged or clogged detergent
suction tube
Remove obstruction or replace detergent suc-
tion tube.
A high pressure nozzle is at-
tached.
Replace with black detergent nozzle.
Discharge nozzle is obstructed Blow out or remove debris with ne needle.
GARDEN HOSE
CONNECTION
LEAKS
Loose ttings Tighten ttings.
Missing/worn rubber washer Insert new washer.
SPRAY WAND
LEAKS
Spray wand not properly at-
tached
Slide the spray wand into the gun. Turn the
wand collar clockwise onto the spray gun
threads until tight.
Broken o-ring Call your distributor and order an o-ring.
PUMP IS NOISY Pump is sucking air Check that hoses and ttings are air tight. Turn
off machine and purge pump by squeezing
trigger gun until a steady ow of water emerges
through nozzle.

CART SERIES • 9.801-629.0 • Rev. 07/17
OPERATOR’S MANUAL PRESSURE WASHER
16
PREVENTATIVE MAINTENANCE
This pressure washer was produced with the best available materials and quality craftsmanship. However, you
as the owner have certain responsibilities for the correct care of the equipment. Attention to regular preventa-
tive maintenance procedures will assist in preserving the performance of your equipment. Contact your dealer
for maintenance. Regular preventative maintenance will add many hours to the life of your pressure washer.
Perform maintenance more often under severe conditions.
OIL CHANGE RECORD
Check pump oil and engine oil level before rst use of your new pressure washer.
Date Oil Changed
Month/Day/Year
Estimated Operating
Hours Since Last
Oil Change
Date Oil Changed
Month/Day/Year
Estimated Operating
Hours Since Last
Oil Change
MAINTENANCE SCHEDULE
Engine Oil
Inspect Daily
Change First month or 20 hours. Every 100 hours or every 6
months after rst month.
Filter Every 50 hours.
Air Cleaner/Filter Inspect Every 50 hours
Clean Monthly
Engine Fuel Filter 500 hours or 6 months
Spark Plug Maintenance 300 hours or annually
Clean Fuel Tank(s) Annually
Replace Fuel LInes Annually
Pump Oil Inspect Oil level daily
Change After rst 50 hours, then every 500 hours or annually
Replace High Pressure Nozzle Every 6 months
Replace Quick Connects/O-Rings Annually/As needed
Clean Water Screen/Filter Weekly
Replace HP Hose Annually (if there are any signs of wear)

Form # 9.801-629.0 • Revised 07/17 • Printed in U.S.A. or Mexico