Landa PG4-15321 User manual

PRESSURE WASHERS
®
OPERATOR’S MANUAL
LANDA, INC. ■ 4275 N.W. Pacific Rim Blvd. ■ Camas, WA 98607 ■ USA
For technical assistance or the Landa Dealer nearest you, call 800-LANDA-4-U (800-526-3248) or [phone]
or consult our web page at www.landa.com
■PG4-15321 ■PG4-20321 ■PG4-25321 ■ PG4-30321
■PG4-35321 ■ PG4-40221 ■ PG4-40221E ■ PG4-40321E
■ PG5-35221 ■ PG5-35221E ■ PG5-35321E
PG

CONTENTS
2
PG Manual •Form #96-601 •Revised 9/02
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.
Introduction ................................................................................................................................... 3
Important Safety Information ...................................................................................................... 3-4
Pre-Operation Check .................................................................................................................... 4
Set-Up Procedures ....................................................................................................................... 4
Component Identification (4-1500, 4-2000, 4-2500, 4-3000, 4-3500) ............................................5
Component Identification (5-3500, 4-4000) ...................................................................................6
Operating Instructions ................................................................................................................ 7-8
Shut Down Procedures ................................................................................................................. 8
General Washing Techniques ........................................................................................................ 8
How To Use the Detergent Injector ...............................................................................................9
Exploded View (4-30321, 4-35321, 4-15321, 4-20321, 4-25321) ................................................ 10
Exploded View, Parts List (4-30321, 4-35321, 4-15321, 4-20321, 4-25321)..........................11-12
Exploded View (5-35321E, 4-40321E, 4-40221, 4-40221E, 5-35221, 5-35221E, 5-35321E) ...... 13
Exploded View, Parts List
(5-35321E, 4-40321E, 4-40221, 4-40221E, 5-35221, 5-35221E, 5-35321E) ....................14-15
Hose & Spray Gun Assembly (All Models) .................................................................................. 16
Downstream Injector Assembly and Parts List ............................................................................ 17
Accessories ................................................................................................................................ 18
Preventative Maintenance ........................................................................................................... 19
Oil Change Record ..................................................................................................................... 20
Storage ....................................................................................................................................... 20
Troubleshooting .....................................................................................................................21-22
Warranty ..................................................................................................................................... 23
Spanish Translations .............................................................................................................. 24-33

PG SERIES PRESSURE WASHER OPERATOR’S MANUAL
3
LANDA PG •REV. 9/02
INTRODUCTION
Thank you for purchasing a Landa Pressure Washer.
This manual covers the operation and maintenance of
the PG4-15321, PG4-20321, PG4-30321, PG4-25321,
PG5-35221, PG5-35221E, PG5-35321E, PG4-40221,
PG4-40221E, PG4-40321E, and PG4-35321 washers.
All information in this manual is based on the latest prod-
uct information available at the time of printing.
Landa, Inc. reserves the right to make changes at any
time without incurring any obligation.
The PG Series was designed for maximum
use of 8 hours per day, 5 days per week.
Owner/User Responsibility:
The owner and/or user must have an understanding of
the manufacturer’s operating instructions and warnings
before using this Landa pressure washer.Warning infor-
mation should be emphasized and understood. If the op-
erator is not fluent in English, the manufacturer’s instruc-
tions and warnings shall be read to and discussed with
the operator in the operator’s native language by the pur-
chaser/owner, making sure that the operator compre-
hends its contents.
Owner and/or user must study and maintain for future
reference the manufacturers’ instructions.
The operator must know how to stop the machine quickly
and understand the operation of all controls. Never permit
anyone to operate the engine without proper instructions.
This manual should be considered a permanent
part of the machine and should remain with it if
machine is resold.
When ordering parts, please specify model and
serial number.
IMPORTANT SAFETY
INFORMATION
WARNING:When using this machine basic precautions
should always be followed, including the following:
CAUTION: To reduce the risk of
injury, read operating instruc-
tions carefully before using.
1. Read the owner's manual thor-
oughly. Failure to follow instruc-
tions could cause malfunction
of the machine and result in
death, serious bodily injury and/
or property damage.
2. Know how to stop the machine and bleed pressures
quickly. Be thoroughly familiar with the controls.
3. Stay alert — watch what you are doing.
4. All installations must comply with local codes. Con-
tact your electrician, plumber, utility company or the
selling distributor for specific details.
WARNING: Risk of asphyxiation.
Use this product only in a well
ventilated area.
5. Avoid installing machines in
small areas or near exhaust
fans. Exhaust contains poison-
ous carbon monoxide gas; ex-
posure may cause loss of con-
sciousness and may lead to
death. It also contains chemicals known, in certain
quantities, to cause cancer, birth defects or other
reproductive harm.
WARNING: Flammable liquids
can create fumes which can ig-
nite causing property damage or
severe injury.
WARNING: Risk of fire. Do not add
fuel when the product is operating.
WARNING: Risk of explosion —
do not spray flammable liquids.
6. Do not place machine near flammable objects as
the engine is hot.
7. Allow engine to cool for 2 minutes before refueling. If
any fuel is spilled, make sure the area is dry before
testing the spark plug or starting the engine. (Fire
and/or explosion may occur if this is not done.)
Gasoline engines on mobile or portable equipment
shall be refueled:
a. outdoors;
b. with the engine on the equipment stopped;
c. with no source of ignition within 10 feet of the
dispensing point; and
d. with an allowance made for expansion of the fuel
should the equipment be exposed to a higher
ambient temperature.
In an overfilling situation, additional precautions are
necessary to ensure that the situation is handled in
a safe manner.
WARNING: High pressure stream
of water that this equipment can
produce can pierce skin and its
underlying tissues, leading to se-
rious injury and possible ampu-
tation.
WARNING
RISK OF
ASPHYXIATION.
USE ONLY IN A WELL
VENTILATED AREA.
WARNING
RISK OF FIRE.
DO NOT ADD FUEL
WHEN OPERATING
MACHINE.
WARNING
READOPERATOR’S
MANUALTHOROUGHLY
PRIORTO USE.
WARNING
RISK OF INJECTION
OR SEVERE INJURY
TO PERSONS. KEEP
CLEAR OF NOZZLE.
CAUTION

4 PG SERIES PRESSURE WASHER OPERATOR’S MANUAL
LANDA PG •REV. 9/02
WARNING: High pressure spray
can cause paint chips or other
particles to become airborne and
fly at high speeds. To avoid per-
sonal injury, eye safety devices
must be worn.
8. Eye safety devices and foot pro-
tection must be worn when us-
ing this equipment.
9. High pressure developed by these machines will
cause personal injury or equipment damage. Use
caution when operating. Do not direct discharge
stream at people, or severe injury or death will re-
sult.
10. Never make adjustments on machine while in op-
eration.
11. Do not operate with spray gun in the off position for
extensive periods of time as this may cause dam-
age to the pump.
12. The best insurance against an accident is precau-
tion and knowledge of the machine.
13. Landa will not be liable for any changes made to our
standard machines, or any components not pur-
chased from Landa.
14. Read engine safety instructions provided.
WARNING: Keep water spray
away from electrical wiring or fa-
tal electric shock may result.
15. Never run pump dry or leave
spray gun closed longer than 5
minutes.
16. To reduce the risk of injury,
close supervision is necessary
when a machine is used near
children. Do not allow children to operate the pres-
sure washer. This machine must be attended dur-
ing operation.
17. Inlet water supply must be cold and clean fresh wa-
ter.
PRE-OPERATION CHECK
❑Check pump oil level. (Use SAE 30W non-detergent
oil). Dipstick is located on top of pump.
❑Cold water supply (minimum 6 gpm, 5/8", 20 psi)
❑Hose, wand, nozzle (nozzle size per serial plate)
❑Water filter (intact, non restrictive)
❑Fuel (unleaded 86 or higher octane)
❑Open spray gun to relieve pressure before starting.
❑Engine oil (SAE 10W30)
SET-UP PROCEDURES
❑Attach a 5/8" garden hose to inlet connector. Mini-
mum flow should be 6 gpm.
❑Attach high pressure hose to discharge nipple using
quick coupler. Lock coupler securely into place by
pulling back coupler collar and inserting it onto dis-
charge nipple, then pushing collar forward to lock in
place. (Also see pages 6 or 7).
❑Attach variable pressure wand to spray gun using
teflon tape on threads to prevent leakage.
❑Attach swivel connector on discharge hose to spray
gun using teflon tape on threads.
❑Remove oil plug on top of pressure washer pump
and replace with dipstick supplied. (This may be
installed from the factory.)
❑Check oil level on sight glass on back of pump. Oil
should be visible one half way up sight glass (30W
non-detergent).
❑Fill gasoline tank and check engine oil.
❑Notice: Running the engine with a low oil level can
cause engine damage.
WARNING
PROTECTIVE
EYEWEAR AND
CLOTHING MUST BE
WORN.
WARNING
KEEP WATER SPRAY
AWAY FROM
ELECTRICALWIRING.
Pressure Hose
Garden
Hose
Inlet
Connector
Collar
Discharge
Nipple
Filter
Filler Cap/Dipstick
Upper Limit
Lower Limit
Sightglass
Dipstick

PG SERIES PRESSURE WASHER OPERATOR’S MANUAL
5
LANDA PG •REV. 9/02
COMPONENT IDENTIFICATION
4-1500, 4-2000, 4-2500, 4-3000, 4-3500
Pump — Develops high pressure.
Starter Grip— Used for starting the engine manually.
Spray Gun — Controls the application of water and de-
tergent onto cleaning surface with trigger device. Includes
safety latch.
Detergent Injector — Allows you to siphon and mix
detergents.
Variable Pressure Wand — Must be connected to the
spray gun. Allows for detergent injection and lower pres-
sure by turning handle.
High Pressure Hose — Connect one end to water pump
discharge nipple and the other end to spray gun.
Pump Protector — Cycles water through pump when
water reaches 140°-145°F.
Note:If trigger on spray gun is released for more
than 2 minutes, water will leak from valve.Warm water
will discharge from pump onto floor. This system
prevents internal pump damage.
High
Pressure
Hose
Pressure Nozzle
Discharge
Nipple
Spray Gun
Trigger
Variable Pressure Wand
4-3000 & 4-3500
Water Supply
Hose
(not included)
Inlet
Connector
Detergent
Injector
Quick
Coupler
Collar
Wand
Coupler
Collar
Water Filter
EZ Start
Valve
Pump
Protector Pump
Variable
Pressure
Handle
Starter
Grip
Safety Latch
Soap Nozzle
Straight Wand
on 4-1500,
4-2000 & 4-2500
Detergent
Hose
Detergent Bucket
(not included)
Trigger
Swivel
Connector
Unloader

6 PG SERIES PRESSURE WASHER OPERATOR’S MANUAL
LANDA PG •REV. 9/02
COMPONENT IDENTIFICATION
5-3500, 4-4000
Pump Oil
Dipstick
Water Supply Hose
(not included)
Inlet Connector
Unloader
Detergent
Bucket
(not included)
Detergent
Hose
High Pressure
Hose
Spray Gun
Trigger
Soap Nozzle Variable Pressure
Control Handle
Variable Pressure
Wand
Engine Oil
Drain
Pressure Nozzle
Quick Coupler
Water Filter
Starter
Grip
Battery Holder
for Electric Start
Models (battery
not included)
Detergent Injector
Pressure Nozzle

PG SERIES PRESSURE WASHER OPERATOR’S MANUAL
7
LANDA PG •REV. 9/02
Battery
WARNING: Wear eye, hand and skin protection when
handling or connecting battery.
WARNING:Batteries generate explosive gases during
normal battery operation. DO NOT expose the battery
to flame or sparks as these gases may ignite.
WARNING:Battery fluid is highly acidic.If battery fluid
contacts skin or clothing,wash immediately with soap
and water.If battery fluid enters eye, immediately flood
eye with running cold water for at least 15 minutes
and get immediate medical attention.
NOTE:The battery must be capable of accepting ring
terminals.
1. Place battery in battery box (battery not included). Use
a group U1, 12 volt, 30 amp hour battery (garden trac-
tor battery). Select a battery similar to the one in the
picture below for proper fit and installation.
Fuel Valve Lever
ON
OFF
Choke Lever
CLOSED OPEN
Starter Grip
Engine Switch
6.25"
5.25"
8.00"
OPERATING INSTRUCTIONS
❑Read engine manual warning and operating instructions.
❑Pull wand coupler collar
back and insert pressure
nozzle into coupler then
secure by pushing collar
forward to lock.
❑Turn on water at faucet and squeeze spray gun trig-
ger allowing water to flow until a steady stream
comes out of wand.
❑Move the fuel valve lever
to the ON position. Turn
the fuel valve lever to the
OFF position after stop-
ping engine.
❑To start a cold engine,
move the choke lever to
the CLOSED position.
To restart a warm en-
gine, leave the choke
lever in the OPEN po-
sition.
❑Turn the engine switch to the
ON position.
❑Open spray gun before pulling
the starter grip.
❑To start the engine pull
the starter grip lightly
until you feel resis-
tance, then pull briskly.
Return the starter grip
gently.
CAUTION: Pull trigger on spray gun to relieve pres-
sure if machine does not start after one pull of starter
grip.
CAUTION: Small engines may kick back. Do not hold
starter grip tightly in hand.
2. To reduce the possibility of sparking attach the
battery cables in the following order. First attach the
positive battery cable (red) to the positive “+” termi-
nal of battery. Next, attach the negative battery cable
(black) to the negative “—” terminal of the battery.
To disconnect the battery remove the cables in the
opposite order as installed. Install battery box cover
and fasten in place.

8 PG SERIES PRESSURE WASHER OPERATOR’S MANUAL
LANDA PG •REV. 9/02
❏On models with electric start: Turn the key to the
START position and hold it there until the engine
starts. If the engine fails to start within 5 seconds,
release the key and wait at least 10 seconds before
operating the starter again.
NOTICE: Using the electric starter for more than 5
seconds at a time will overheat the starter motor and
can damage it. When the engine starts, release the
key, allowing it to return to the ON position.
❏With the spray nozzle pointed away from you or any-
one else, press the trigger on the spray gun to ob-
tain pressurized spray.
SHUT DOWN PROCEDURES
❑If a detergent injector was used, flush all lines with
clean water to remove soap residue.
❑Turn off engine. Turn off water supply.
❑Squeeze spray gun trigger to relieve any pressure.
❑Disconnect water supply hose from washer.
CAUTION: Do not allow pump to run without water.
❑Disconnect all hoses to allow water to drain. Protect
from freezing.
CAUTION: Do not allow pump to run longer than 3
minutes without water. Disconnect all hoses to al-
low water to drain.
CAUTION: With machine off, open spray gun to re-
lease pressure before removing discharge hose.
Spray
Nozzle
Quick Coupler
Wand
1 Foot
GENERAL WASHING
TECHNIQUES
❑Test pressure and spray pattern on hard surface (i.e.
cement) to gauge distance and impact of water spray.
❑Hold spray
nozzle approxi-
mately one foot
from surface be-
ing cleaned. For
best surface
cleaning action,
spray at slight
angle.
❑To change spray nozzle for a different pattern it is
recommended that you turn off engine and squeeze
spray gun trigger to release hose pressure. Pull back
on quick coupler at end of wand and exchange
nozzle. Make sure nozzle is seated securely. Re-
start engine.
❑Use the detergent injector to apply detergent. Wash
from the bottom and work up. Allow the detergent to
set 5-10 minutes on surface. Rinse from top down.
NOTE: If pressure washer is running and not being
used for more than 3 minutes, turn off engine.

PG SERIES PRESSURE WASHER OPERATOR’S MANUAL
9
LANDA PG •REV. 9/02
HOW TO USE THE
DETERGENT INJECTOR
WARNING: Some detergents may
be harmful if inhaled or ingested,
causing severe nausea, fainting
or poisoning. The harmful ele-
ments may cause property dam-
age or severe injury.
The machine can siphon and mix
detergents with the use of Landa's
detergent injector kit.
1. Turn engine and water supply off. Squeeze spray
gun to relieve pressure before attaching detergent
injector.
2. To attach detergent injector between pressure
washer and high pressure hose, pull injector quick
coupler collar back and secure on discharge nipple.
Injector valve body arrow should point in direction of
flow.
3. Connect pressure discharge hose to injector nipple
securing quick coupler by pushing collar towards
nipple.
4. Install the brass soap nozzle provided with the in-
jector into the quick coupler of the wand.
5. Start machine as outlined in Operating Instructions.
6. Place detergent pick-up tube into container of deter-
gent solution.
7. Open spray gun. Water detergent ratio is approxi-
mately 15 to 1.
8. If your machine has a variable pressure wand, to
wash, turn the pressure control handle counterclock-
wise to lower the pressure. This directs the water
flow through the soap nozzle and allows the deter-
gent injector to siphon soap. To rinse with high pres-
sure water, simply turn the control handle clockwise.
NOTE: The detergent injector will not siphon deter-
gent with the control handle on the variable pres-
sure wand turned for high pressure.
9. For clean up, place detergent pick-up tube into con-
tainer of clear water and follow steps 5 and 6 to pre-
vent detergent deposits from damaging the injector.
WARNING
SOME DETERGENTS
MAY BE HARMFUL IF
INHALED OR
INGESTED.
Spray Gun
Detergent
Injector
Water
Inlet
Quick
Coupler
Collar Quick
Coupler
Trigger
Detergent
Pick-up Tube
Variable Pressure
Control Handle
High Pressure
Hose
Discharge
Nipple
Detergent Bucket
(Not Included)
Pressure Nozzle
Soap Nozzle

10 PG SERIES PRESSURE WASHER OPERATOR’S MANUAL
LANDA PG •REV. 9/02
EXPLODED VIEW
PG4-15321, PG4-20321, PG4-25321, PG4-30321, PG4-35321
78
72 71
79
20
73
73
72
77
76
75
76
74
85
81
66
84
84
51
83 82
80
47
48
59 60
858 56 16 57
61
62
10
63
4
2
63
2
1
9
13
11
12
62
2
24
25
14, 17
28
22
23
32
29
23
7
24
32
24
7
23
57
7
23
23
7
6
69
68
5
70
23
22 2322
65
26 67
21
20
19
18
27
61
35
30
23
29
23
30
61
25
24
33
34
36
15
37
31
38
39
64
23
22
45
23
86

PG SERIES PRESSURE WASHER OPERATOR’S MANUAL
11
LANDA PG •REV. 9/02
ITEM PART NO. DESCRIPTION QTY
1 90-1006 Bolt, 5/16" x 3/4"
NL GR 5 CS ZN 3
2 90-4001 Washer, 5/16", flat, SAE 6
3 10-99060 Label, Platinum Series,
Op. Inst./Warn. 1
4 2-01171 Belt Guard, PG-Small, Plastic 1
5 2-0104 Pad, Hard Rubber 2
6 90-4025 Washer, 3/8" x 1" x 12 GA 2
7 90-10202 Bolt, 3/8" x 2-1/2" NC HH Tap 8
8 90-4007 Washer, 3/8" x 1-1/2", Fender, 1
9 5-511075 Bushing, H x 3/4"
(PG4-15321, PG4-15325) 1
5-511100 Bushing, H x 1"
(All other models) 1
10 5-512024 Bushing, H x 24mm (All models)1
11 5-40403601 Pulley, BK36H
(PG4-15321, PG4-15325) 1
5-40203201 Pulley, 2AK32H (PG4-20325,
PG4-25325, PG4-35325) 1
5-40203001 Pulley, 2AK30H
(PG4-30325, PG4-20321) 1
5-40503201 Pulley, 2BK32H (PG4-35321) 1
5-40203401 Pulley, 2AK34H (PG4-30321) 1
12 5-40407001 Pulley, BK70H
(PG4-15321, PG4-15325) 1
5-40207401 Pulley, 2AK74H (PG4-25321,
PG4-30325, PG4-25325,
PG4-30325,PG4-35325) 1
5-40208401 Pulley, 2AK84H (PG4-30321,
PG4-25321) 1
5-40510001 Pulley, 2BK100H (PG4-4-35321)1
13 5-604035 Belt, BX35 (PG4-15321,
PG4-15325) 2
5-602037 Belt, AX37
(PG4-20325, PG4-20321,
PG4-25325, PG4-25321,
PG4-30325, PG4-35325) 2
5-602038 Belt, AX38 (PG4-30321) 2
5-602035 Belt, AX35
(PG4-20321, PG4-25321) 2
5-604042 Belt, BX42 (PG4-35321) 2
14 95-07101213 Back Plate, Belt Guard,
PG Small 1
95-07101211 Back Plate, Belt Guard, Large
(PG4-35321) 1
15 10-2043000 Label, 4-3000 Lexan 1
ITEM PART NO. DESCRIPTION QTY
15 10-2043500 Label, 4-3500 Lexan 1
10-2041500 Label, 4-1500 Lexan 1
10-2042000 Label, 4-2000 Lexan 1
10-2042500 Label, 4-2500 Lexan 1
16 5-0105 Engine, Honda, 11 HP GX340K1QA
(PG4-30321, PG4-25321,
PG4-25325, PG4-30325) 1
5-010721 Engine, Honda 13 HP
GX390K1QAZ (PG4-35321,
PG4-35325) 1
5-0104 Engine, Honda, 5.5 HP
(PG4-15321, PG4-15325) 1
5-0102 Engine, Honda, 9 HP
(PG4-20321, PG4-20325) 1
17 2-0106 ▲Cushion, Pump (Thin) .5
18 2-10491 Plug, 1/4" JIC (Honda only) 1
19 2-11062 Swivel, 1/4" JIC Fem, Push-on
(Honda only) 1
20 4-02100000 Hose, 1/4", /ft, Push-on 2.5
21 2-11063 Plug, Push-on, Oil Drain
(Honda only) 1
22 90-2002 Nut, 3/8", ESNA, NC 20
23 90-4002 Washer, 3/8", Flat, SAE 34
24 90-4005 Washer, 5/8", Flat, SAE 4
25 90-2004 Nut, 5/8", Jam, ESNA, NC 2
26 90-1023 Bolt, 3/8" x 5" NC 2
27 95-07101216 Frame, PG/PE Small 1
95-07101218 Frame, Large Belt Drive
(PG4-35321) 1
28 95-07101130 Bumper, 1-1/4" Chrome Grab 1
29 90-10220 Bolt, 3/8" x 3-1/2", Tap 2
30 90-1010 Bolt, 5/16" x 1-3/4", NC HH 4
31 10-020PG Label, PG (Lexan) 1
32 4-0303 Wheel & Tire Assy, 4" Tube 2
4-0307 Wheel & Tire, 6" Steel Rim
(PG4-35321) 1
33 95-07101135 Bracket, Belt Tension 1
34 90-2020 Nut, Cage, 3/8" x 12 GA. 2
35 90-2007 Nut, 3/8", Hex, NC 4
36 95-07101132 Handle, 1-1/4" Chrome 1
37 2-0103 Grommet, Rubber 5
38 4-12804000 Nozzle, SAQCMEG 0004, Red
(PG4-30321, PG4-35321,
PG4-30325, PG4-35325) 1
EXPLODED VIEW PARTS LIST
PG4-15321, PG4-20321, PG4-25321, PG4-30321, PG4-35321

12 PG SERIES PRESSURE WASHER OPERATOR’S MANUAL
LANDA PG •REV. 9/02
ITEM PART NO. DESCRIPTION QTY
38 4-12804015 Nozzle, SAQCMEG 1504, Yellow
(PG4-30321, PG4-35321,
PG4-30325, PG4-35325) 1
4-12804025 Nozzle, SAQCMEG 2504, Green
(PG4-30321, PG4-35321,
PG4-30325, PG4-35325) 1
4-12804040 Nozzle, SAQCMEG 4004, White
(PG4-30321, PG4-35321,
PG4-30325, PG4-35325) 1
4-12805000 Nozzle, SAQC Meg 0005 Red
(PG4-25321, PG4-25325) 1
4-12805015 Nozzle, SAQC Meg 1505 Yellow
(PG4-25321, PG4-25325) 1
4-12805025 Nozzle, SAQC Meg 2505 Green
(PG4-25321, PG4-25325) 1
4-12805040 Nozzle, SAQC Meg 4005 White
(PG4-25321, PG4-25325) 1
4-12805500 Nozzle, SAQC Meg 00055 Red
(PG4-20321, PG4-20325) 1
4-12805515 Nozzle, SAQC Meg 15055 Yellow
(PG4-20321, PG4-20325) 1
4-12805525 Nozzle, SAQC Meg 25055 Green
(PG4-20321, PG4-20325) 1
4-12805540 Nozzle, SAQC Meg 40055 White
(PG4-20321, PG4-20325) 1
4-12806000 Nozzle, SAQC Meg 0506 Red
(PG4-15321, PG4-15325) 1
4-12806015 Nozzle, SAQC Meg 1506 Yellow
(PG4-15321, PG4-15325) 1
4-12806025 Nozzle, SAQC Meg 2506 Green
(PG4-15321, PG4-15325) 1
4-12806040 Nozzle, SAQC Meg 4006 White
(PG4-15321, PG4-15325) 1
39 5-2304 Pump, T-1011(PG4-20321) 1
5-2307 Pump, TS-2021
(PG4-25321, PG4-35321) 1
5-2335 Pump, TS-1511 (PG4-30321) 1
5-2302 Pump, Gen T991 (PG4-15321) 1
5-2270 Pump, AR XRA4G2ON
(PG4-15325, PG4-20325) 1
5-2271 Pump, AR XRCA4.5G30HN
(PG4-25325, PG4-30325,
PG4-35325) 1
45 90-1016 Bolt, 3/8" x 1", NC 4
47 90-2002 Nut, 3/8", ESNA, NC 4
48 90-4002 Washer, 3/8", SAE, Flat 6
ITEM PART NO. DESCRIPTION QTY
51 5-3208 Unloader, AL607, 7.8 GPM @
4200 PSI 1
5-3203 Unloader, AR (PG4-15325,
PG4-20325, PG4-25325,
PG4-30325, PG4-35325) 1
55 2-1902 ▲Strainer, Inlet Garden Hose 1
56 10-02025A Label, Hot/Caliente 1
57 10-02029 Label, Danger Cool Engine 1
58 10-99081 Label, Prop. 65 Warning 1
59 90-1015 Bolt, 3/8" x 3/4", NC HH 1
60 2-0108 Bumper Pad Engine 1
61 90-4001 Washer, 5/16", Flat, SAE 8
62 90-2002 Nut, 3/8", ESNA NC 4
63 90-2001 Nut, 5/16" ESNA 3
64 2-30082 Pump Protector, 1/2" PTP 1
65 95-07101219 Bracket, Wide Foot 1
66 2-2007 Nipple, 3/8" x 3/8" NPT St. Male1
67 90-40125 Washer, 3/8" x 1" Steel 2
68 2-0107 Bellows, LEG (Boot) 2
69 90-5009 Spring, Foot Compression 2
70 95-07161114A Tube, Foot Bolt 2
71 2-3100543 Valve, EZ Start (4-1500) 1
2-3100544 E-Z Start Valve (4-2000, 4-2500,
4-3000, 4-3500) 1
72 2-1088 Hose Barb, 1/4" Barb x 1/4" Pipe2
73 2-9000 Clamp, Hose #4 2
74 2-10942 Swivel, 1/2" MPT x 3/4" GHF 1
75 4-02110000 Hose, 1/2", Push-On, per ft. 1.3
76 2-1105 Swivel, 1/2" JIC Fem, Push-On 2
77 2-10421 Tee, 1/2" w/1/8" Hole, Street 1
78 2-1062 Elbow, 1/2" JIC x 1/2", 90° 1
79 4-02047720 Hose, 3/8" x 20", 2 Wire
Pressure Loop 1
80 2-0053 Elbow, 1/2" JIC, 3/8", 90° 1
81 2-0051 Nipple, 1/2" JIC, 3/8" Pipe 1
82 2-1060 Elbow, 1/2" JIC x 3/8", 90° 1
83 2-0006 Nipple, 3/8" Hex Steel 1
84 90-1020 Bolt, 3/8" x 2", NC HH 2
85 95-07101216/B Block, Unloader, 3/8" x 3/8",
Brass 1
86 95-07141121 Key, Motor, Shaft (4-35321) 1
▲ Not Shown
EXPLODED VIEW PARTS LIST (CON'T)
PG4-15321, PG4-20321, PG4-25321, PG4-30321, PG4-35321

PG SERIES PRESSURE WASHER OPERATOR’S MANUAL
13
LANDA PG •REV. 9/02
EXPLODED VIEW
PG5-35221, PG5-35221E, PG5-35321E, PG4-40221, PG4-40221E, PG4-40321E
33
4-4000
2
32
82
5
51
36
638
23
64, 13
43 47
69
70
67
66
14
47
51
48
11
50
21
50
45
42
48
48
52
44
45
50
53
46
39
47
48
44
48
40 54
56
57
60
59
58
55
61
44
48
48
62 48
48
11
11
63
48
73
44
76
74
26
11
48
71
34
41
32
72
810
9
49
22 79
12
25
24, 75
17
20
16
15
31
3965
21
27
80
20
16 16
29
22
28
19
68
30
37
Fuel Tank On
PG 4-40321E
Models Only 86 84
83
4a
77
85
81
7
77
84
4b
48
44
48
73
18
78
87

14 PG SERIES PRESSURE WASHER OPERATOR’S MANUAL
LANDA PG •REV. 9/02
ITEM PART NO. DESCRIPTION QTY
1 2-10421 Tee, 1/2" w/1/8" Hole, Street 1
2 2-1088 Hose Barb, 1/4" Barb x 1/8" ML
Pipe, 90° 2
3 2-3100544 Valve, E-Z Start 1
4a 4-02100000 Hose, 1/4", Push-On 4ft.
2-01155 Tank Assy, Fuel, 6 Gal. 1
4b 4-02100000 Hose, 1/4", Push-On 1.5ft
5 2-9000 Clamp, Screw, #4 4
6 90-2002 Nut, 3/8", ESNA, NC 2
7 2-2109 Nipple, Coupler, Fuel Line 1
8 10-020PG Label, PG, (Lexan) 1
9 10-2053500 Label, 5-3500 (Lexan) 1
10-2044000 Label, 4-4000 (Lexan) 1
10 10-99060 Label, Plat.
Series Op.Inst/Warn. 1
11 90-10202 Bolt 3/8" x 2-1/2", NC, HH, Tap 8
12 2-0103 Grommet, 1/8", Rubber 4
13 2-0106 Cushion, Pump (Thin) 1
14 2-01172 Belt Guard, PG-Large, Plastic 1
15 2-1050 Plug, 1/2" JIC, Flare 1
16 2-1105 Swivel, 1/2" JIC Fem, Push-on 3
17 2-1108 Push-on, 3/8" Male Pipe 1
2-1101 Adapter, 3/8" X 1/4"
(20 H.P. Honda Only) 1
18 2-810 Key Ring, #1 with Landa 1
19 4-02047720 Hose, 20" x 3/8", 100R2,
Pres Loop 1
20 4-02110000 Hose, 1/2" Push-On /ft. 1.5
21 4-0307 Wheel & Tire Compl, Steel 6" 2
22 4-12805000 Nozzle, SAQMEG, 0005, Red 0°
(5-3500) 1
4-12805015 Nozzle, SAQMEG, 1505,
Yellow 15° (5-3500) 1
4-12805025 Nozzle, SAQMEG, 2505,
Green 25° (5-3500) 1
4-12805040 Nozzle, SAQMEG, 4005,
White 40° (5-3500) 1
4-01404000 Nozzle, 1/4" MEG 0004 SS
(4-4000) 1
4-01404015 Nozzle 1/4" MEG 1504 SS
(4-4000) 1
4-01404025 Nozzle 1/4" MEG 2504 SS
(4-4000) 1
ITEM PART NO. DESCRIPTION QTY
22 4-01404040 Nozzle 1/4" MEG 4004 SS
(4-4000) 1
23 5-0306 Engine, Vanguard 16 HP,
Pull/Start w/Fuel Tank (4-40221,
4-40225, 5-35225, 5-35221 ) 1
5-0317 Engine, Vanguard, 16 HP,E/S,
w/Tank (4-40221E, 5-35221E,
5-35225E, 4-40225E) 1
5-01093 Engine, Honda, 20HP,
Electric Start (PG5-35321E,
PG4-40321E, PG5-35325E,
PG4-40325E) 1
24 95-07101149 Guard, Muffler, Briggs, Vanguard1
25 76-807964 Muffler, Exhaust Skid & PG,
Briggs, Vanguard 1
95-07101214 ▲Heat Deflector,
Vanguard 16 HP 1
26 95-07101218 Frame, PG, Large 1
95-07101222 Frame, Large (PG5-35321E) 1
27 95-07101135 Bracket, Belt Tension 1
28 2-0053 Elbow, 1/2" JIC, 3/8", 90° 1
29 2-10942 Swivel, 1/2" MP x 3/4" GHF
w/ Strainer 1
2-1902 ▲ Strainer, Inlet Garden Hose 1
30 2-30082 Pump Protector 1/2" PTP 1
31 5-2307 Pump, General, TS-2021
(5-35221E, 5-35321E,
5-35221) 1
5-2320 Pump, General, T-9281,
(PG4-40321E, PG4-40221E,
PG4-40221) 1
5-2271 Pump AR XRCA4.5G30HN
(5-35225, 5-35225E, 5-35325E) 1
5-2272 Pump, AR XRCA4G40HN
(4-40225, 4-40225E, 4-40325E) 1
32 2-0051 Nipple, 1/2" JIC x 1/2" Pipe 1
33 2-1062 Elbow, 1/2" JIC x 1/2", 90° 1
34 2-2007 Nipple, 3/8" x 3/8" NPT ST MAL1
2-20022 ▲ Nipple, 5000 PSI 1
2-0006 ▲ Nipple, 3/8" x 3/8", Pipe
(4-4000) 1
36 5-3208 Unloader, AR, AL607, 7.8 GPM 1
37 95-07101216/B Block, Unloader, 3/8" x 3/8"
Brass 1
38 90-4002 Washer, 3/8", SAE, Flat 6
EXPLODED VIEW PARTS LIST
PG5-35221, PG5-35221E, PG5-35321E, PG4-40221, PG4-40221E, PG4-40321E

PG SERIES PRESSURE WASHER OPERATOR’S MANUAL
15
LANDA PG •REV. 9/02
ITEM PART NO. DESCRIPTION QTY
39 90-1010 Bolt, 5/16" x 1-3/4", NC HH 4
40 95-07101219 Bracket, Wide Foot 1
41 90-1020 Bolt, 3/8" x 2", NC HH 4
42 90-10220 Bolt, 3/8" x 3-1/2", Tap 2
43 90-2001 Nut, 5/16", ESNA, NC 9
44 90-2002 Nut, 3/8", ESNA, NC 24
45 90-2004 Nut, 5/8", JAM, ESNA, NF 2
46 90-2020 Nut, Cage, 3/8" x 16 Ga 2
47 90-4001 Washer, 5/16", Flat, SAE 16
48 90-4002 Washer, 3/8" SAE, Flat 30
49 95-07101132 Handle, 1-1/4" Chrome 1
50 90-4005 Washer, 5/8", Flat, SAE 4
51 90-1006 Bolt, 5/16" x 3/4" NC GR
5 CS ZN 3
52 95-07101130 Handle, 1-1/4" Chrome Grab 1
53 90-2007 Nut, 3/8", Hex, NC 2
54 92-102 Foot Assy, PG (9-90) 2
55 2-0107 Bellow, Leg (Boot) 2
56 90-1023 Bolt, 3/8" x 5", NC HH Tap 2
57 90-4013 Washer, 3/8" x 1-1/6" x 12 Ga 2
58 90-4015 Washer, 1-1/2" x 3/8" x 12 Ga 2
59 90-5009 Spring, Foot, Compression, New 2
60 95-07161114A Tube, Foot Bolt PC 2
61 2-0104 Pad, Hard Rubber 2
62 95-07101113 Holder, Battery, PG
(Elecric Start Only) 1
63 95-07101114 Clamp, Battery, PG
(Electric Start Only) 1
64 95-07101211 Back Plate, Belt Guard, PG, Lg. 1
65 90-4006 Washer, 5/16" x 1-1/4", Fender,
SAE 2
66 5-511100 Bushing, H x 1" (PG4-4000,
PG5-3500) 1
67 5-40504501 Pulley, 2BK45H (PG4-40321E,
PG4-40221, PG4-40221E,
PG4-40225, PG4-40225E,
PG5-35225, PG5-35225E,
PG5-35325E, PG4-40325E) 1
5-40503201 Pulley, 2 BK32 H (PG5-35221,
PG5-35221E, PG5-35321E) 1
68 5-40508001 Pulley, 2BK80H (PG4-40221,
PG4-40221E, PG5-35221,
PG5-35221E, PG5-35321E,
PG4-40321E, PG5-35225,
PG5-35225E, PG5-35325E) 1
ITEM PART NO. DESCRIPTION QTY
68 5-40507001 Pulley, 2BK70H (PG4-40225,
PG4-40225E, PG4-40325E) 1
69 5-604040 Belt, BX40 (PG5-35221,
PG5-35321E, PG4-40221E,
PG5-35221E, PG4-40221) 2
5-604041 Belt, BX41 (PG4-40321E) 2
5-604037 Belt, BX37 (PG5-35225,
PG5-35225E) 2
5-604038 Belt, BX38 (PG5-35325E,
PG4-40225, PG4-40225E,
PG4-40325E) 2
70 5-512024 Bushing, H x 24 mm 1
71 2-0006 Nipple, 3/8" Hex 1
72 2-1060 Elbow, 1/2" JIC x 3/8" 1
73 90-1016 Bolt, 3/8" x 1", NC HH 4
74 10-02029 Label, Danger Cool Engine 1
75 10-020251 ▲Label, “Hot” Muffler Warning 1
76 90-1021 Bolt, 3/8" x 2-1/2" GR 5 ZN 2
77 2-9000 Clamp, Screw
(Honda 4-40321E) 5
78 10-99081 Label, Prop. 65 Warning 1
79 4-16540 Nozzle, Brass Soap (5-3500) 1
4-0146540S Nozzle only, 1/4" U-6540,
Brass (4-4000) 1
80 2-20024 Nipple 1/4" Female 5000 psi
(4-4000) 5
81 2-2108 Coupler, Fuel Line, Quick
(Honda 4-30321E) 1
82 4-02100000 Hose, 1/4", Push-On, Fuel Line
Per Ft. 2.5
83 2-01152 Fuel Tank, 6 Gal. 1
2-01155 Tank Assy, Fuel, 6 Gal. (includes
4a, 77, 81, 83 & 84) 1
84 2-1085 Hose Barb, 1/4" Barb x 1/8" Pipe
(Honda 4-40321E) 3
85 2-1084 Hose Barb 1/4" Barb x 1/8" ML
(Fuel Tank Assy PG4-40321E) 1
86 2-1084 Hose Barb, 1/4" Barb x 1/8" ML
(PG4-40321E) 1
87 95-07141121 Key, Motor Shaft (4-40321E,
5-35221E, 4-40221) 1
▲ Not Shown
EXPLODED VIEW PARTS LIST (CON'T)
PG5-35221, PG5-35221E, PG5-35321E, PG4-40221, PG4-40221E, PG4-40321E

16 PG SERIES PRESSURE WASHER OPERATOR’S MANUAL
LANDA PG •REV. 9/02
PG HOSE & SPRAY GUN ASSEMBLY
ALL MODELS
ITEM PART NO. DESCRIPTION QTY
1 2-2002 Coupler, 3/8" Female 1
2-0123H ▲Quick Coupler O-Ring,
1/4" & 3/8" (Packaged) 1
2-20021 Coupler, 3/8" Female 5000 psi
(4-4000) 1
2-01321 ▲Seal, 3/8" (4-4000) 1
2 4-02083450C Hose w/Coupler 50' x 3/8"
(except 4-4000) 1
4-02083450F Hose w/Coupler 3/8" x 50'
w/5000 psi Coupler (4-4000) 1
3 4-01212 Spray Gun, Shut-off,
Series 2000 1
4 4-011053 Wand, SS, 31.4" YL31SS
(4-1500, 4-2000, 4-2500) 1
5 4-011143A Wand, VP AL344
(4-3000, 4-3500, 5-3500) 1
ITEM PART NO. DESCRIPTION QTY
5 4-011143B Wand, VP Assy 4000 psi
(4-4000) 1
6 Pressure Nozzle (See Exploded View)
7 4-16540 Brass Soap Nozzle (4-1500,
4-2000, 4-2500) 1
4-0146540S Nozzle Only, Brass Soap
(4-4000) 1
8 2-2000 Coupler, 1/4" Female 1
2-0119 ▲O-Ring, Coupler Quick Sm
HI-HT 1
2-20023 Coupler, 1/4" Female 5000 psi
(4-4000) 1
2-01321 ▲Seal 1/4" 1
9 2-20024 Nipple, 1/4" Female 5000 psi 1
▲ Not Shown
4-4000
6 - Pressure Nozzle
7 - Brass Soap Nozzle
Nozzle
8
4
5
6
9
High Pressure
Nozzle
2
3
1

PG SERIES PRESSURE WASHER OPERATOR’S MANUAL
17
LANDA PG •REV. 9/02
DOWNSTREAM INJECTOR ASSEMBLY
ASSY #3 #4-011183 (EXCEPT 4-4000)
#4-011186 (4-4000)
ITEM PART NO. DESCRIPTION QTY
1 3-1202 Detergent Injector Non Adjust,
#2 (except 4-4000) 1
3-1208 Detergent Injector (No Coupler)
5000 psi, (4-4000) 1
2 2-9000 Clamp, Screw, #4 1
3 4-02080000 Tube, 1/4" x 1/2", Clear Vinyl /ft. 6
ITEM PART NO. DESCRIPTION QTY
4 2-1907 Strainer, 1/4" Hose Barb 1
2-1904 Strainer, 1/4" Hose Barb
(4-4000) 1
5 2-20022 Nipple 3/8" Female 5000 psi
(4-4000) 1
6 2-20021 Coupler, 3/8" Fem. 5000 psi
(4-4000) 1
6
1
5
4-4000
12
3
4

18 PG SERIES PRESSURE WASHER OPERATOR’S MANUAL
LANDA PG •REV. 9/02
ACCESSORIES
Water Jet Surface Cleaner
#30-585
Sand Blaster Pot
(Carbide)
#4-011201
Sand Blaster Wand w/Probe
(Carbide)
#4-011211
Telescoping Wand, 12 Foot
#4-011012
Rotating Nozzle
#4-2023
50' Hose 3/8", 3000 psi,
Rough Skin
#4-020350
Set of Nozzles (Packaged)
#4-651504H
50' Hose 3/8", 4500 psi,
Rough Skin
#4-020450
O-Ring, 1/4" and 3/8"
(Packaged)
#2-0123H

PG SERIES PRESSURE WASHER OPERATOR’S MANUAL
19
LANDA PG •REV. 9/02
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 preventative mainte-
nance procedures will assist in preserving the performance of your equipment. Contact your Landa dealer for main-
tenance. Regular preventative maintenance will add many hours to the life of your pressure washer. Perform mainte-
nance more often under severe conditions.
MAINTENANCE SCHEDULE
Engine Oil
Inspect Daily
Change
First month or 20 hours.
Every 100 hours or every 6 months after first month
Every 25 hours.
Every 50 hours or monthly
Filter Every 50 hours
Air Cleaner/Filter
Inspect Every 50 hours
Clean
Monthly
Every 3 months
Battery Level Check monthly
Engine Fuel Filter 500 hours or 6 months
Spark Plug Maintenance
300 hours or annually
500 hours or 6 months
Clean Fuel Tank(s) Annually
Replace Fuel Lines Annually
Pump Oil
Inspect Oil level daily
Change After first 50 hours, then every 500 hours or annually (or 3 months)
Replace High Pressure Nozzle Every 6 months
Replace Quick Connects Annually
Clean Water Screen/Filter Weekly
Replace HP Hose Annually (if there are any signs of wear)
Belts
Tighten Every 6 months
Inspect/Replace Every 6 months
Clean Float/Supply Tank Every 6 months
Grease Motor Every 10,000 hours
Clean Burner Filter Monthly (more often if fuel quality is poor)
Remove Burner Soot Annually
Burner Adjustment/Cleaning Annually
Replace Burner Nozzle Annually
Descale Coil Annually (more often if required)

20 PG SERIES PRESSURE WASHER OPERATOR’S MANUAL
LANDA PG •REV. 9/02
OIL CHANGE RECORD
Check pump oil and engine oil level before first use of your new power 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
STORAGE
Pump Storage
CAUTION: Always store your pres-
sure washer in a location where the
temperature will not fall below 32°F
(0°C). The pump in this machine is
susceptible to permanent damage if
frozen.
FREEZE DAMAGE IS NOT COVERED
BY WARRANTY.
If you must store your pressure washer in a location
where the temperature is below 32°F, you can minimize
the chance of damage to your machine by draining your
machine as follows:
1. Stop the pressure washer and detach supply hose
and high pressure hose. Squeeze the trigger of the
spray gun to drain all water from the wand and hose.
2. Restart pressure washer and let it run briefly (about
5 seconds) until water no longer discharges from
the high pressure outlet.
Engine Storage
When the pressure washer is not being operated or is
being stored more than one month, follow these instruc-
tions:
1. Replenish engine oil to upper level.
2. Drain gasoline from fuel tank, fuel line, fuel valve
and carburetor.
3. Pour about one teaspoon of engine oil through the
spark plug hole, pull the starter grip several times and
replace the plug.Then pull the starter grip slowly until
you feel increased pressure which indicates the pis-
ton is on its compression stroke and leave it in that
position.This closes both the intake and exhaust valves
to prevent the inside of the cylinder from rusting.
4. Cover the pressure washer and store in a clean, dry
place that is well ventilated away from open flame or
sparks.
NOTE: The use of a fuel additive, such as STA-BIL®, or
an equivalent, will minimize the formulation of fuel gum
deposits during storage. Such an additive may be added
to the gasoline in the fuel tank of the engine, or to the
gasoline in a storage container.
After Extended Storage
Caution: Prior to restarting, thaw out any
possible ice from pressure washer hoses,
spray gun or wand.
Engine Maintenance
During the winter months, rare atmospheric conditions
may develop which will cause an icing condition in the
carburetor. If this develops, the engine may run rough,
lose power and may stall. This temporary condition can
be overcome by deflecting some of the hot air from the
engine over the carburetor area.
NOTE: Refer to the engine manufacturer's manual for
service and maintenance of the engine.
CAUTION
CAUTION