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Pressure Washer
PW 450
Husqvarna PW 450 User Manual
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English – 29
4.4
Circuit diagram
L
br[ro]
bl[hv]
bl
2
S1
2a
1a
S2M Switch
so
so
P>
so
bl
M
C1
hv
hv
1
br
N
PE
gu/gr
(J
P
:only green)
Thermo 180°
(J
P
:160°)
Ø
gu/gr
(J
P
:only green)
br
bl
so
gu
hv
C1
S1
S2
CU
M
WU
Brown
Blue
Black
Y
ellow
White
Capacitor
Switch
Single-pole switch/
micro switch
Control unit
Motor
Wireless unit
Appendices and schedules
28
30
Table of Contents
Default Chapter
2
Table of Contents
2
1 Introduction and Safety Regulations
3
General
3
Revisions
3
Target Group
3
Safety Instructions
3
General Safety Instructions
3
Special Safety Instructions
3
2 Repair Instructions
5
Product Overview
5
Cabinet Parts Overview
5
Motor/Pump Unit Overview
6
To Disassemble/Assemble the Front Cabinet
7
To Disassemble/Assemble the Switchbox and Motor Cover
8
To Disassemble/Assemble the Pump
10
To Do Maintenance on the Bearing
10
To Do Maintenance on the Pump Head
11
To Disassemble the Brass Connector Inside the Outlet
13
To Disassemble/Assemble the Start/Stop Valve
13
To Adjust the Micro Switch
14
To Replace the Hose (Hose Reel Version)
15
To Measure the Resistance of the Electrical Motor
15
To Service and Repair the Pressure Regulation
16
To Check Correct Operation
16
To Remove the Control Piston
16
To Install the Control Piston
16
To Prepare for Check of the Cut-Off Pressure
17
To Check Cut-Off Pressure
17
To Put the Machine Pressure in Basic Setting
17
To Fine Adjust the Machine Pressure
18
To Secure the Machine Pressure Setting
18
3 Specifications
19
Technical Data PW450 and PW 460
19
4 Appendices and Schedules
20
Operating Supplies
20
Recommended Oil Types
20
Recommended Lubrication
20
Recommended Glue
20
Tools
21
Function
22
Machine Stopped and Outlet Hose Emptied
22
Machine Operation
22
Machine Standby
23
Pressure Control Valve Standby
23
Start Stop System Guide - no Pressure in the System
24
Start-Up Pressure Build up
24
Pressure Build Up-Opening Pressure / Close Gun
25
Motor Stop - Standby Pressure
25
Gun Is Activated
26
Machine Run
26
Pressure Control Valve Active
27
Wiring Diagram
28
Circuit Diagram
29
4
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Husqvarna PW 450 Specifications
General
Brand
Husqvarna
Model
PW 450
Category
Pressure Washer
Language
English
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