Landa XPERT-HD 3.8/35 P User manual

8.780-001.0
MODEL # ORDER #
XPERT-HD 3.8/35 P
XPERT-HD 3.5/40 P
1.107-108.0
1.107-219.0
PD4-35324
PD4-40324
1.107-096.0
1.107-220.0
DA-383539
DA-354039
1.107-102.0
1.107-218.0
DD-383537
DD-354037
1.107-137.0
1.107-221.0
RG-364037 1.107-237.0
SERVICE MANUAL

3
CONTENTS
8.780-001.0 • Xpert HD-DD-PD-DA-RG • Rev. 07/13
Exploded View ......................................................................................... 4
Exploded View Parts List ......................................................................... 5
S.3 Pump and Parts List .......................................................................7-8
K4000 Pump and Parts List ..................................................................... 9
UU1 Universal Unloader Exploded and Parts List ................................. 10
VBA Unloader Exploded and Parts List ................................................. 11
Troubleshooting ................................................................................12-13
Preventive Manteinance ........................................................................ 14
Oil Change Record ................................................................................ 15

8.780-001.0 • Xpert HD-DD-PD-DA-RG • Rev. 07/13
PRESSURE WASHER SERVICE MANUAL
4
EXPLODED VIEW
15
2
4
914
6
7
8
10
10
5
1
11
57
3
13
55
56
12
50
29
17
16
18
19
20
21
25
25
26
27
24
24
23
30
31
32
54
28
19
22
33
34
34
35
36
37
38
39
40
43
44
49
42
41
45
46
47
48
2
K4000 Pump

8.780-001.0 • Xpert HD-DD-PD-DA-RG • Rev. 07/13
5
PRESSURE WASHER
SERVICE MANUAL
EXPLODED VIEW PARTS LIST
ITEM PART NO. DESCRIPTION QTY
1 8.750-580.0 Engine, Honda, GX390 1
UT2QA2 , 389cc
2 See Page 7 S.3 Series Pump
(All models except RG) 1
See Page 9 K4000 Pump (RG Model) 1
3 See Page 10 UU1 Unloader 1
(3500psi Models except RG)
See Page 11 VBA Unloader 1
(4000psi Models except RG)
4 8.707-256.0 Pump protector, 1/2"
(All models except RG) 1
5 8.706-958.0 Hose barb, 1/4" Barb X 1/4" 1
Pipe, 90 Drg
(All models except RG)
6 8.706-207.0 Elbow, 3/8" Street 90 Deg. 1
Steel (All models except RG)
7 9.802-190.0 Valve, Ez start, 1
3/8 Mpt X 1/8 Fpt
(All models except RG)
8 8.706-940.0 Hose barb,1/4" Barb X 1
1/8" ML Pipe
(All models except RG)
9 9.802-254.0 Hose 1/4"
(All models except RG) 1
10 6.390-126.0 Hose clamp
(All models except RG) 2
11 9.802-146.0 Swivel, 1/2" Mp X 3/4", 1
Ghf W/Strainer
(All models except RG)
12 9.802-171.0 Nipple, 3/8" X 3/8", Mpt St 1
(All Models except RG)
13 9.802-722.0 Bolt, 3/8" X 1-1/4", Nc HH 4
(All models except RG)
14 9.802-814.0 Washer, 3/8", Lock Split Ring 4
(All models except RG)
15 9.138-437.0 Karcher branding label 1
(Xpert HD)
9.138-439.0 Landa branding label 1
(PD Models)
9.138-440.0 Hotsy branding label 1
(DA Models)
8.750-881.0 Shark branding label 1
(DD & RG Models)
16 8.739-026.0 Hose, 3/8” X 50’ 1 Wire 1
Tuff-Skin (PD Models)
8.739-011.0 Hose, 3/8” X 50’ 1 Wire 1
Tuff-Skin (DA Models)
8.739-021.0 Hose, 3/8” X 50’ 1 Wire 1
Tuff-Skin (Xpert HD and
DD Models)
9.162-323.0 HP Hose DN8/50'/4000 1
(RG Model)
ITEM PART NO. DESCRIPTION QTY
17 8.750-247.0 Trigger Gun Model M407
(All models except RG) 1
9.112-017.0 AL5 Gun 4000 PSI
(RG Model) 1
18 8.783-040.0 Wand, 44” With Side Grip 1
(All models except RG)
9.112-527.0 Lance-Al Quick Connect -
Male 4000 PSI (RG Model) 1
19 9.104-030.0 Quick Connect Nozzle Kit 1
(040) (3500psi & RG Models)
9.802-295.0 ▲Nozzle, 0003, Red 1
9.802-296.0 ▲Nozzle, 0015, Yellow 1
9.802-297.0 ▲Nozzle, 0025, Green 1
8.932-298.0 ▲Nozzle, 0040, White 1
9.802-311.0 ▲Nozzle, Black, Soaper 1
19 8.904-154.0 Quick Connect Nozzle Kit 1
(035) (4000psi Models)
8.712-337.0 ▲Nozzle, 0003.5, Red 1
8.712-338.0 ▲Nozzle, 1503.5, Red 1
8.712-339.0 ▲Nozzle, 2503.5, Red 1
8.712-340.0 ▲Nozzle, 4003.5, White 1
8.712-398.0 ▲Nozzle, Black, Soaper 1
20 9.115-109.0 Frame O-Blk Wrinkle 1
21 9.140-151.0 Handle O-Blk Wrinkle 1
22 8.918-001.0 Holder, Wand, Right, Black
(All models except RG) 1
9.140-152.0 Powder Coated Black Wrinkle
Trigger Gun (RG Model) 1
23 9.196-306.0 5/16"-18 X 1"-3/4", Bolt Sq 2
Neck
24 9.198-002.0 5/16" SAE F/W zinc .062 3
Thk (All models except RG)
8.718-980.0 Washer,
5/16" Flat (RG Model) 3
25 9.802-776.0 Nut, 5/16, ESNA, Nc 3
26 9.142-315.0 Hose hanger Blk Wrinkle 1
27 9.802-716.0 Bolt 5/16" X 2" NC, HH 1
28 9.134-022.0 Name plate 1
29 9.196-049.0 Nylon Rivet 4
30 7.767-003.0 1/4"-20 Star knob 2
31 9.196-307.0 1/4"-20 x 1-1/2" GR 2, 2
Hex bolt zinc
32 9.802-727.0 Bolt, 3/8" X 1-3/4", TAP
(All models except RG) 4
9.186-021.0 3/8-16 X 2 GR 5 HHCS Zinc
(RG Model) 4
33 9.802-779.0 Nut 3/8"
(All models except RG) 4
9.197-003.0 3/8-16 NE Nylon Insert
(RG Model) 4
34 9.802-807.0 Washer, Flat 3/8" 8
(All models except RG)
9.198-004.0 3/8 USS F/W Zinc
(RG Model) 8
35 9.802-270.0 Wheel & Tire Assy, 10" 2
Steel Rim W/Tube

8.780-001.0 • Xpert HD-DD-PD-DA-RG • Rev. 07/13
PRESSURE WASHER SERVICE MANUAL
6
ITEM PART NO. DESCRIPTION QTY
36 9.182-506.0 Cap black plastic, 2
5/8'' Fastener
37 9.183-411.0 Rubber buffer 2
38 9.802-714.0 Bolt, 5/16" X 1-3/4" 2
39 8.718-980.0 Washer, 5/16"", Flat 4
40 9.802-166.0 Coupler, 3/8" Female, Brass 1
8.702-088.0 ▲O-Ring, Viton, 3/8” 1
(All models except RG)
41 9.138-438.0 Shark branding label 1
(DD-383537 & RG Models)
42 8.930-124.0 Label, Intended for Outdoor 1
Use (All models except RG)
9.801-594.0 Rating Plate, RG-364037 1
43 9.800-008.0 Label, Danger Cool Engine
(All models except RG) 1
44 9.800-006.0 Label, Hot/Caliente 1
(All models except RG)
45 8.751-096.0 Label Regulation 4442.6 1
46 8.783-034.0 Label, Quick Start Guide 1 1
(All models except RG)
9.138-423.0 Quick Instruction Guide
(RG Model) 1
47 8.750-809.0 Label, Operator Warnings 1
(All models except RG)
8.783-035.0 Label, Operation Warnings
(RG Model) 1
48 8.783-036.0 Label, Warning Pictogram 1
(All models except RG)
49 8.783-038.0 Label, Universal DB Rating, 1
Ear Protection, Trilingual
(All models except RG)
50 9.802-216.0 Injector, Chem, Non Adj, 1
3-5 GPM, 0.083
(All models except RG)
51 6.388-216.0 ▲ Hose DN 5 1
(All models except RG)
52 5.731-652.0 ▲ Filter with weigh 1
(All models except RG)
4.862-032.0 Filter chemistry regulation 1
(RG Model)
53 9.802-959.0 ▲ Key, 0.247 Sqr x 1
2.125" (All models except RG)
54 8.753-555.0 Label, Rate Specs, High 1
(RG Model)
55 9.802-813.0 Washer, 5/16" Split Ring
Lock, Zinc (RG Model) 1
56 6.965-007.0 5/16-24X1 GR 5 SHCS THRU
Hardener (RG Model) 1
57 6.362-612.0 O-Ring seal 24,77x5,33-
NBR 70 (RG Model) 1
▲Not Shown
EXPLODED VIEW PARTS LIST

8.780-001.0 • Xpert HD-DD-PD-DA-RG • Rev. 07/13
7
PRESSURE WASHER
SERVICE MANUAL
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 LS3540GR.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
S.3 PUMP EXPLODED VIEW

8.780-001.0 • Xpert HD-DD-PD-DA-RG • Rev. 07/13
PRESSURE WASHER SERVICE MANUAL
8
S.3 PUMP EXPLODED VIEW PARTS LIST
ITEM PART NO. DESCRIPTION QTY
50* See Kit Below O-Ring Ø1.78x5.28 3
51* See Kit Below Teflon 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 31163

8.780-001.0 • Xpert HD-DD-PD-DA-RG • Rev. 07/13
9
PRESSURE WASHER
SERVICE MANUAL
ITEM PART NO. DESCRIPTION QTY
1 9.175-011.0 Unloader Assy
(9.120-019.0) Pump 1
2 9.139-359.0 Spare parts set
seat excess-current 1
3 9.154-047.0 Plug M22x1 3
4 6.362-481.0 O-Ring seal
14,0 x 2,0 NBR 80 3
5 2.884-512.0 Valve (Set With 3 pc.) 1
6 5.443-448.0 Nipple chemistry 1
7 6.362-175.0 O-Ring seal 5,28x 1,78 1
8 7.401-908.0 Sphere 7 G300
-1.4301 DIN 5401 1
9 5.332-258.0 Helical spring 1
10 9.154-049.0 Plug M10x1 1
11 9.151-014.0 Rupture Disk,
5000 PSI, Blue 1
12 9.139-364.0 Spare Part List 019
(Set With 3 pc.) 1
13 9.135-012.0 Cylinder Head-Machined 1
14 7.306-072.0 Cylinder head screw
M10X 80-8.8-A3E IS 5
15 9.184-013.0 Thermal Relief Valve 1
16 6.362-851.0 O-Ring seal 4 x 2 NBR 90 1
17 9.184-012.0 Valve Pin-Back Pressure 1
18 9.157-006.0 Spring-Valve Pin 1
19 6.362-384.0 O-Ring seal 9x1,5 - NBR 70 2
20 5.769-141.0 Nozzle insert 1
21 6.362-451.0 O-Ring seal 8,0 x 1,0 1
22 6.363-067.0 O-Ring seal 92X2 NBR 70 1
ITEM PART NO. DESCRIPTION QTY
23 9.139-358.0 Spare Part of Piston
(Set With 3 pc.) 1
24 6.362-390.0 O-Ring seal 15,6 X 1,78 1
25 9.134-019.0 Male Adapter 1
26 9.181-005.0 Filter Seal-Hose Connector 1
27 9.155-013.0 Female Hose Connector 1
28 9.135-013.0 Piston Guide-4000 psi 1
29 6.365-340.0 Grooved ring 14X22X5/7 3
30 9.182-356.0 Spacer 3
31 9.177-311.0 Back Ring-Low
Pressure Seal 3
32 6.365-438.0 Compact seal 3
33 9.155-014.0 Housing-Low Pressure Seal 3
34 6.362-376.0 O-Ring seal 24,0 X 1,5 3
35 9.177-312.0 Back Ring-High
Pressure Seal 3
36 9.177-313.0 Seal high pressure 3
37 4.401-096.0 Deep groove ball
thrust bearing only for 1
38 9.165-256.0 Swash Plate-Machined 1
39 6.401-225.0 Taper roller bearing 41 1
40 7.367-011.0 Radial shaft seal ring
A40x52x7-NBR DIN 1
41 9.135-014.0 Oil Housing-Machined
42 5.582-080.0 Valve disc 1
43 5.332-209.0 Helical spring 1
44 5.030-533.0 Moulded part 1
K4000 PUMP EXPLODED VIEW
1
1
20
16
15
14 13
36 35
34
32
31
30
29
28 27
26
25
24
23
22
37
38
39
40
41
42
43
44
33
12
11
10
7
98
6
5
4
3
21
17
18
19 19 12
9.120-019.0

8.780-001.0 • Xpert HD-DD-PD-DA-RG • Rev. 07/13
PRESSURE WASHER SERVICE MANUAL
10
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

8.780-001.0 • Xpert HD-DD-PD-DA-RG • Rev. 07/13
11
PRESSURE WASHER
SERVICE MANUAL
VBA UNLOADER EXPLODED VIEW
VBA UNLOADER EXPLODED VIEW PARTS LIST
ITEM PART # DESCRIPTION KIT QTY
1 Body Valve (KG) 1
Body Valve (KS) 1
2 O-Ring A, C 1
3 Seat C 1
4 Ball, Sub Assy C 1
5 O-Ring A 1
6 9.803-907.0 Guide Bushing 1
7 Teflon Ring 1
8 O-Ring A 1
9 O-Ring A 2
10 9.803-911.0 Connector 1
11 Teflon Ring A 1
12 Stem C 1
13 9.803-914.0 Connector Female 1
14 O-Ring A, B 1
15 Spring B 1
16 Poppet B 1
ITEM PART # DESCRIPTION KIT QTY
17 9.802-893.0 Seal Washer 3/8" 2
18 9.803-919.0 Banjo Bolt 3/8" Solid Cap 1
19 9.803-920.0 Banjo Bolt 1/2", w 1/4" Pilot 1
20 9.803-921.0 Seal Washer 1/2" 2
21 Plate C 1
22 Spring C 1
23 8.933-021.0 Set Screw 1
24 9.803-925.0 Nut 1
25 9.803-926.0 Brass Handle 1
26 8.706-865.0 Plug, 1/4" Countersunk 1
Kit A 8.717-672.0 O-Ring Repair Kit
Kit B 8.717-673.0 Outlet Kit
Kit C 8.717-674.0 Stem Basic Kit
12
25
24
23
22
21
11
8
8
7
6
5
4
3
2
1
17
17
16
15
14
13
18
26
19
20
20
10
9
9.803-900.0
UNLOADER (VBA), 6.6GPM@4000PSI

8.780-001.0 • Xpert HD-DD-PD-DA-RG • Rev. 07/13
PRESSURE WASHER Troubleshooting Guide
12
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
LOW OPERATING
PRESSURE
Insufficient 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. Retape
leaks with teflon tape.
Faulty or mis-adjusted unloader
valve
Adjust unloader for proper pressure. Install
repair kit when needed. Call local distributor.
Worn packing in pump Call Dealer Customer Support.
Machine has been stored in freez-
ing temperatures
Thaw out machine completely, including
hose, spray gun and wand.
Slow engine RPM Call local distributor.
FLUCTUATING
PRESSURE
Worn or dirty pump valves Call local distributor.
Nozzle is obstructed Blow out or remove debris with fine needle.
Pump sucking air, inlet hose
leaking
Check that all hoses and fittings are airtight.
Turn off machine and trigger spray gun until
a steady flow of water emerges through the
nozzle.
Insufficient water supply Turn water on full force. Check garden hose
for kinks, leaks or blockage.
PRESSURE LOW
AFTER PERIOD OF
NORMAL USE
Nozzle worn Replace nozzle.
Unloader valve worn Replace unloader valve.
ENGINE WILL NOT
START OR STOPS
WHILE OPERATING
Low oil shutdown Fill engine with oil.
Out of gas Fill fuel tank.
Water in gasoline Drain gas tank; fill 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
normal
If excessive leaking occurs, Call local
distributor.
PRESENCE OF
WATER IN PUMP OIL
Water sprayed at machine Change oil. Direct spray away from machine.
High humidity in air Check and change oil twice as often.
Piston packing worn. Oil seal worn. Call local distributor.

8.780-001.0 • Xpert HD-DD-PD-DA-RG • Rev. 07/13
13
PRESSURE WASHER Troubleshooting Guide
PROBLEM POSSIBLE CAUSE SOLUTION
ENGINE OPERATES
FOR 15 MINUTES
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 filter Clean or replace fuel filter.
ENGINE LACKS
POWER
Dirty air filter Replace air filter.
ENGINE FALTERS Choke is opened too soon Move choke to halfway position until engine
runs smoothly.
WATER DRIPPING
FROM UNDER PUMP
Piston packing worn Call local distributor.
O-Ring plunger retainer worn Call local distributor.
Cracked piston Call local distributor.
OIL DRIPPING Oil seal worn or damaged Call local distributor.
WATER LEAKING
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
manufacturers detergent.
Detergent filter valve is at lowest
setting
Set detergent filter valve to a higher setting.
Filter on detergent suction tube is
clogged
Run warm water through filter to remove
debris.
Damaged or clogged detergent suc-
tion tube
Remove obstruction or replace detergent
suction tube.
A high pressure nozzle is attached. Replace with black detergent nozzle.
Discharge nozzle is obstructed Blow out or remove debris with fine needle.
GARDEN HOSE
CONNECTION
LEAKS
Loose fittings Tighten fittings.
Missing/worn rubber washer Insert new washer.
SPRAY WAND
LEAKS
Spray wand not properly attached Slide the spray wand into the gun. Turn the
wand collar clockwise onto the spray gun
threads until tight.
Broken o-ring Call local distributor and order an o-ring.
PUMP IS NOISY Pump is sucking air Check that hoses and fittings are air tight.
Turn off machine and purge pump by
squeezing trigger gun until a steady flow of
water emerges through nozzle.
TROUBLESHOOTING

8.780-001.0 • Xpert HD-DD-PD-DA-RG • Rev. 07/13
PRESSURE WASHER Troubleshooting Guide
14
MAINTENANCE SCHEDULE
Engine Oil
Inspect Daily
Change First month or 20 hours.
Every 100 hours or every 6 months after first 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
(All Models except RG)
Inspect Oil level daily
Change After first 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)
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. Check pump oil (All Models except RG) and engine
oil level before first use of your new pressure washer.

8.780-001.0 • Xpert HD-DD-PD-DA-RG • Rev. 07/13
15
PRESSURE WASHER
SERVICE MANUAL
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
OIL CHANGE RECORD
Check pump oil (All Models except RG) and engine oil level before first use of your new pressure washer.

Form #8.780-001.0 • Xpert HD-DD-PD-DA-RG • Revised 07/13
Printed in U.S.A. or Mexico