NorthStar 1571107 User manual

M1571107B
Owner’s Manual
Pressure Washer: Machine that cleans dirty surfaces with
high pressure water.
Instructions for Installation/Set-up, Operation, Maintenance, & Storage
This pressure washer produces cold-water high-pressure spray. Cleaning chemicals may be incorporated into the
spray if desired. The pressure pump for this equipment is powered by an electric motor.
WARNING
SPECIAL HAZARDS
•Injection Injury: High-pressure spray can pierce skin and underlying tissues, leading to serious injury and possible
amputation. Such an injection injury can result in blood poisoning and/or severe tissue damage.
•Flying Debris: High-pressure spray can cause flying debris and possible surface damage.
•Electric Shock: Operating equipment in wet conditions or near water can cause electric shock.
•Chemical Exposure: Cleaning chemical vapors or contact with skin may be hazardous.
•Fire/Explosion: Motor sparking can ignite fuel or other flammable liquids or vapors in the vicinity.
•Burns: Pressure washer pump and motor are hot surfaces that can cause burn injuries.
Detailed safety information about these hazards appears throughout this manual.
Equipment Protection Quick Facts
Inspect Upon Delivery: FIRST! Inspect for missing or damaged components. See “Initial Set-Up”section for where
to report missing or damaged parts.
Pump: Pump is shipped with oil. Check pump oil level before starting. Remove shipping plug and install vented fill
cap.
Water Flow Requirements: Make sure your supply water flow rate is 20% higher than the pressure washer's flow
rate (see "Operations" section for detail) and that your water is clean and particle free. Maximum inlet water temp.
180˚F (82˚C) for 1571107 and 185˚F (85˚C) for 1571108 & 1571109.
Chemical Spraying: Use only approved pressure washer chemicals designed for high-pressure use.
Storage: Do not allow water to freeze in the pump, hose, or spray gun(s). See “Storage” for more information.
Maintenance Schedule: Motor and pump require periodic inspection and servicing to keep pressure washer
functioning efficiently. See “Maintenance Schedule Summary”for frequency of servicing.
Any Questions, Comments, Problems, or Parts Orders
Call NorthStar Product Support 1-800-270-0810
ITEM NUMBER: 1571107, 1571108, 1571109
SERIAL NUMBER: _____________

2
Table of Contents
Equipment Protection Quick Facts ........................................................................................................................................ 1
TABLE OF CONTENTS................................................................................................................................................2
ABOUT YOUR PRESSURE WASHER.........................................................................................................................4
COMPONENT IDENTIFICATION..................................................................................................................................6
SAFETY ........................................................................................................................................................................7
Hazard Signal Word Definitions ............................................................................................................................................ 7
SAFETY LABELING.....................................................................................................................................................8
Safety Decal Locations ......................................................................................................................................................... 8
INITIAL SET-UP..........................................................................................................................................................10
Step 1. Inspect & Unpack...................................................................................................................................................... 10
Step 2. Assembly................................................................................................................................................................... 12
Rubber Feet Assembly........................................................................................................................................................ 12
Spray Gun Assembly .......................................................................................................................................................... 13
Wall Mount Hook, Gun and Hose Assembly ....................................................................................................................... 13
Step 3. Select Suitable Location........................................................................................................................................... 13
Moving and Handling .......................................................................................................................................................... 13
Step 4. Verify Electrical Connection .................................................................................................................................... 13
Grounding ........................................................................................................................................................................... 13
Ground Fault Circuit Interrupter Protection ......................................................................................................................... 13
Extension Cord.................................................................................................................................................................... 14
OPERATION ...............................................................................................................................................................15
Follow Safety Rules for Operation ....................................................................................................................................... 15
Preparing for Operation ........................................................................................................................................................ 16
Check/Add Oil to Pump....................................................................................................................................................... 16
Connect Hoses, Water Supply, and Spray Nozzle .............................................................................................................. 17
Prime the Water Supply......................................................................................................................................................... 18
Set Up for Chemical Spray (if desired)................................................................................................................................. 19
Start-Up Procedures.............................................................................................................................................................. 20
Start the Motor to Power the Pump..................................................................................................................................... 20
Apply Cleaning Chemical (if desired) .................................................................................................................................. 20
Begin High Pressure Spray................................................................................................................................................. 20
Shutdown ............................................................................................................................................................................... 21
STORAGE...................................................................................................................................................................22
Between Use Storage............................................................................................................................................................ 22
Prepare Pressure Washer for Freezing Conditions............................................................................................................ 22
Prepare Pressure Washer for Storage ................................................................................................................................. 22
MAINTENANCE & REPAIR........................................................................................................................................23
MAINTENANCE SCHEDULE SUMMARY..................................................................................................................23
DETAILED INSTRUCTIONS –MAINTENANCE & REPAIR ......................................................................................23
Follow Safety Rules ............................................................................................................................................................ 23
Keep Pressure Washer Clean............................................................................................................................................. 23
Inspect Spray System ......................................................................................................................................................... 23
Clean Inlet Filter.................................................................................................................................................................. 24
Change Pump Oil................................................................................................................................................................ 25

3
TROUBLESHOOTING................................................................................................................................................26
PARTS EXPLOSION- REV B .....................................................................................................................................27
PARTS LIST –REV B.................................................................................................................................................28
PUMP ASSEMBLIES..................................................................................................................................................30
PUMP EXPLODED VIEW –CAT 5CP3120.3000 .......................................................................................................31
PUMP EXPLODED VIEW –GP HTXS1812S .............................................................................................................32
PUMP EXPLODED VIEW –GP HTXS1813S .............................................................................................................33
LIMITED WARRANTY ................................................................................................................................................35
LIMITED WARRANTY CONTINUED ..........................................................................................................................36
CALIFORNIA PROPOSITION 65 INFORMATION .....................................................................................................38

4
About Your Pressure Washer
Thank you for purchasing a NorthStar Pressure Washer!
It is designed for long life, dependability, and top
performance.
Intended Use. Produce a high-pressure water spray.
Incorporate cleaning chemicals into a low-pressure
water spray.
Note: Do not use for other purposes, as unforeseen
hazards or equipment damage may result.
Power Source. The pressure washer is powered by an
electric motor.
Supplies Required. Normal operation will require you
to supply:
•Pressure Washer pump oil
•Electric supply
•Personal Protection Equipment
See “Specifications”section of this manual for more
detail.
Personal Protection. Wear safety apparel during
operation, including safety glasses with side and top
protection. Ear protection is also recommended if
working near any operating machine. Other safety
apparel includes waterproof, insulated gloves and non-
slip protective footwear. Cleaning chemicals may require
the use of respiration mask; refer to the chemical label
for further instruction.
Adult Control only. Only trained adults should set up
and operate the pressure washer. Do not let children
operate the pressure washer.
Under the Influence. Never operate, or let anyone else
operate, the pressure washer while fatigued or under
the influence of alcohol, drugs, or medication.
Keep this manual for reference and review.
ATTENTION: Rental Companies and Private
Owners who loan this equipment to others!
All persons to whom you rent/loan this pressure washer
to must have access to and read this manual. Keep this
owner’s manual with the pressure washer at all times
and advise all persons who will operate the pressure
washer to read it. You must also provide personal
instruction on how to safely set-up and operate the
pressure washer and remain available to answer any
questions a renter/borrower might have. Owner’s
Manuals are available from NorthStar at 1-800-270-
0810.

5
Specifications
1571109
FLOW OUTPUT
PSI (bar)
3000 (207)
GPM (I/min)
4.0 (15.1)
Max Water Temp
185°F (85°C)
MOTOR
Motor Horsepower
8.2 HP
Ampere
50A
Voltage
230V
DIMENSIONS/COMPONENTS
Length
24.35″
Width
21.00″
Height
19.00″
Pump Model
GP HTXS1812S
Pump Oil Capacity
14 oz
Nozzle orifice Size
#4.5
SUPPLIES REQUIRED (not included)
Pump Oil (Shipped
with oil but refills
required)
SAE 30 Non-Detergent Oil or
Pressure washer Pump Oil (Part#
4043)
Circuit Type
(Volts/Amps/Phase)
230V/50A/1ph
1571107
1571108
FLOW OUTPUT
FLOW OUTPUT
PSI (bar)
1500 (103.4)
PSI (bar)
2500 (172.36)
GPM (I/min)
2.0 (7.6)
GPM (I/min)
3.0 (11.4)
Max Water Temp
180° F (82°C)
Max Water Temp
185°F (85°C)
MOTOR
MOTOR
Motor Horsepower
2 HP
Motor Horsepower
6.2 HP
Ampere
20A
Ampere
30A
Voltage
120V
Voltage
230V
DIMENSIONS/COMPONENTS
DIMENSIONS/COMPONENTS
Length
24.35″
Length
24.35″
Width
21.00″
Width
21.00″
Height
19.00″
Height
19.00″
Pump Model
CAT 5CP
Pump Model
GP HTXS1813S
Pump Oil Capacity
17 oz
Pump Oil Capacity
14 oz
Nozzle orifice Size
#2.0
Nozzle orifice Size
#3.5
SUPPLIES REQUIRED (not included)
SUPPLIES REQUIRED (not included)
Pump Oil (Shipped
with oil but refills
required)
SAE 30 Non-Detergent Oil or Cat
Pump Oil (Part# 22158)
Pump Oil (Shipped
with oil but refills
required)
SAE 30 Non-Detergent Oil or
Pressure washer Pump Oil (Part#
4043)
Circuit Type
(Volts/Amps/Phase)
120V/20A/1ph
Circuit Type
(Volts/Amps/Phase)
230V/30A/1ph

6
Component Identification
1. Inlet Filter: Filter that will prevent particles and debris from entering the pump. Clean regularly.
2. On/Off Switch: Toggle switches that will power or shut down unit.
3. High Pressure Outlet: Connect your high pressure hose.
4. Trigger: Actuate to allow pressurized water to flow out of spray gun.
5. Unloader: Pressure Adjustment valve that regulates pressure and directs flow into bypass when
trigger is closed.
6. Motor: Motor provides years of reliable use and powers the pump.
7. Pump: A device that moves fluid through a combination of suction and displacement.
8. Spray Gun: Always use two hands for safe operation.
9. Chemical Strainer: Must be fully submerged in cleaning chemical to draw fluid.
10. Chemical Hose: Submerge in cleaning solution.
11. Pressure Hose: Attach to gun and water outlet.
12. Hose and Gun Bracket: Attaches on another surface suitable for storing the pressure hose.
13. Chemical Injector: Inject chemicals into a system at the required pressure for the system
14. Total Start / Stop Switch: Automatically shuts motor off when not spraying.
See “Parts Explosion” for more details

7
Safety
Hazard Signal Word Definitions
DANGER
WARNING
CAUTION
CAUTION
NOTICE
This is the safety alert symbol. It is used to alert you to
potential personal injury hazards. Obey all safety
messages that follow this symbol to avoid possible injury
or death.
DANGER (red) indicates a hazardous situation, which if
not avoided, will result in death or serious injury.
WARNING (orange) indicates a hazardous situation,
which if not avoided, could result in death or serious
injury.
CAUTION (yellow) used with the safety alert symbol,
indicates a hazardous situation, which if not avoided,
could result in minor or moderate injury.
CAUTION (yellow) without the safety alert symbol, is
used to address practices not related to personal injury.
NOTICE is used to address practices not related to
personal injury.

8
Safety Labeling
Safety Decal Locations
WARNING
ALWAYS make sure safety labels are in place and in good condition. If a safety label is missing or not legible, order new labels
from NorthStar Product Support at 1-800-270-0810.
On-Product Warning Labels
Location
Part Numbers
Description
1
35189
Warning, Rotating Equipment
2
803091
Start Up/Shut Down Instructions
3
33555
Risk Warning
4
802940
Total Start / Stop
5
NA
Serial Number

9
Safety Labeling
Safety Decals
To order replacement safety labels, call NorthStar Product Support
at 1-800-270-0810.
1
3
2
4
5

10
Initial Set-Up
Step 1. Inspect & Unpack
Upon receiving your item check for missing or damaged parts.
See “Component Identification” section of this manual for a diagram of the pressure washer and its components.
•For missing or damaged components, contact Product Support at 1-800-270-0810.
•If complete, fill out product serial number information. See “Limited Warranty” section of this manual.
Any Questions, Comments, Problems or Parts Orders call NorthStar Product Support
at 1-800-270-0810.