North Star M157305Y, 157305, 157306, 157307, 157308 Owner's Manual

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M157305Y

ITEM NUMBER: 157305, 157306,

157307, 157308

SERIAL NUMBER: _____________

Owner’s Manual

Electric Hot Water/Steam Pressure Washer

Instructions for Set-up, Operation, Maintenance & Storage

This pressure washer produces cold or hot water high-pressure spray as well as steam spray. Cleaning chemicals may be incorporated into the spray if desired. The pressure pump is powered by an electric motor and water is heated by an open flame burner fueled by diesel/kerosene or fuel-. Read and understand this Owner’s Manual completely before using and keep this manual for review. Failure to properly set up, operate, and maintain could result in serious injury or death to operator or bystanders.

WARNING: SPECIAL HAZARDS

 Skin/Eye Injury: High-pressure spray can cause serious skin or eye injury, including injection injury if fluid pierces the skin.

Injection injury can result in blood poisoning and/or severe tissue damage.

 Burns: Hot spray can scald and burn skin. Hot surfaces of wand and burner, as well as hot exhaust from the burner can

cause burns.

 Slips/Falls: Spray discharge can cause puddles and slippery surfaces. Spray-gun kickback can cause operator loss of

balance and falls.

 Flying Debris: High-pressure spray can cause surface damage and flying debris.  Fire/Explosion: Burner sparking can ignite fuel or other flammable liquids or vapors in the vicinity. Hot exhaust from burner

can ignite combustible materials.

 Chemical Exposure: Cleaning chemical vapors or contact with skin may be hazardous.  Electric shock: Spray contact with electrical sources can cause electric shock.  Electrocution: Improper connection of the equipment or grounding conductor can result in a risk of electrocution.  CO Poisoning: Exhaust from burner contains carbon monoxide, a poisonous gas that can cause carbon monoxide poisoning

and possible death if inhaled.

Equipment Protection Quick Facts

Inspect Upon Delivery: STOP! Closely inspect to make sure no components are missing or damaged. For missing

or damaged components please contact Product Support at 1-800-270-0810.

Check Pump Oil: Pump is shipped with oil. Check pump oil level before starting.

Water Flow Requirements: Make sure your supply water flow rate is 20% higher than the pressure washer’s flow

rate (3 gal/min preferred), and that your water is clean and particle free.

Chemical Spraying: Use only NorthStar brand or equivalent washer chemicals designed for pressure washer use.

Maintenance Schedule: Pump, burner fuel filter, burner coil and electrodes require periodic checking and servicing

to keep pressure washer functioning efficiently. See “Maintenance & Repair” for frequency of servicing.

Any Questions, Comments, Problems or Parts Orders

Call NorthStar Product Support 1-800-270-0810

Table of Contents

Equipment Protection Quick Facts ........................................................................................................................................ 1

TABLE OF CONTENTS ................................................................................................................................................ 2

ABOUT YOUR PRESSURE WASHER ......................................................................................................................... 4

SPECIFICATIONS ........................................................................................................................................................ 5

COMPONENT IDENTIFICATION .................................................................................................................................. 6

SPECIAL EQUIPMENT SAFETY FEATURES ............................................................................................................. 8

High Pressure Safety Device (Rupture Disc) ........................................................................................................................ 8

Temperature Control Switch ................................................................................................................................................. 8

Pump Thermal Relief Valve .................................................................................................................................................. 8

Spray Gun Safety Latch ........................................................................................................................................................ 8

SAFETY ........................................................................................................................................................................ 9

Hazard Signal Word Definitions ............................................................................................................................................ 9

SAFETY DECAL LOCATIONS ................................................................................................................................... 10

ASSEMBLY AND INITIAL SET-UP ............................................................................................................................ 11

Step 1. Inspect & Unpack ...................................................................................................................................................... 11

Step 2. Assembly ................................................................................................................................................................... 11

Step 3. Verify Electrical Connection .................................................................................................................................... 11

Grounding ........................................................................................................................................................................... 11

Ground Fault Circuit Interrupter Protection ......................................................................................................................... 11

Step 4. Moving and Handling ................................................................................................................................................ 12

Moving your pressure washer around ................................................................................................................................. 12

To reduce risk of injury, do not attempt to manually lift the pressure washer. Use a shallow ramp to raise or lower pressure

washer to a different elevation ............................................................................................................................................ 12

BEFORE EACH USE .................................................................................................................................................. 13

Step 1: Inspect Equipment ................................................................................................................................................... 13

Electrical ............................................................................................................................................................................. 13

Pump Oil ............................................................................................................................................................................. 13

Spray System ...................................................................................................................................................................... 13

Burner Fuel System (if heated water to be used) ................................................................................................................ 13

Periodic Maintenance .......................................................................................................................................................... 13

Step 2. Check and Fill Burner Fuel Tank ............................................................................................................................ 13

Filling Burner Fuel Tank (if heated water to be used) ......................................................................................................... 14

Step 3. Select Suitable Worksite Guidelines ...................................................................................................................... 14

For All Indoor and Outdoor Uses ........................................................................................................................................ 14

For Indoor Hot Water/Burner Use ....................................................................................................................................... 15

OPERATION ............................................................................................................................................................... 15

Step 1. Connect Hoses, Water Supply, and Spray Nozzle ................................................................................................. 15

Hose and Water Supply ...................................................................................................................................................... 15

Connect Water Supply to Pump .......................................................................................................................................... 15

Connect Pressure Hose to Pump ........................................................................................................................................ 15

Quick Connect Procedure ................................................................................................................................................... 15

Selecting and Connecting Spray Nozzle ............................................................................................................................. 16

Step 2. Pre-Spraying Procedure .......................................................................................................................................... 16

Safety Rules ........................................................................................................................................................................ 16

Personal Protective Gear .................................................................................................................................................... 17

Purging ................................................................................................................................................................................ 17

Step 3. Spraying .................................................................................................................................................................... 17

Starting ................................................................................................................................................................................ 17

Spraying Procedure ............................................................................................................................................................ 17

Using Chemicals for Cleaning (if desired) ........................................................................................................................... 17

Hot Spray Procedure ........................................................................................................................................................... 18

Step 4. Stopping..................................................................................................................................................................... 19

STORAGE ................................................................................................................................................................... 19

Between-Use Storage ......................................................................................................................................................... 19

Long-Term Storage Preparation (between infrequent uses and at end of season) ............................................................. 19

Winter Storage Preparation ................................................................................................................................................. 19

MAINTENANCE & REPAIR ........................................................................................................................................ 20

MAINTENANCE SCHEDULE ..................................................................................................................................... 20

DETAILED INSTRUCTIONS – MAINTENANCE & REPAIR ...................................................................................... 20

Dust/Debris Removal .......................................................................................................................................................... 20

Inspect Fuel System(s) ....................................................................................................................................................... 20

Inspect Spray System ......................................................................................................................................................... 20

Clean Inlet Filter for Garden Hose ...................................................................................................................................... 21

Check Tire Pressure ........................................................................................................................................................... 21

Change Pump Oil ................................................................................................................................................................ 21

Drain Burner’s Fuel Filter/Water Separator ......................................................................................................................... 21

Descale Heating Coil ........................................................................................................................................................... 21

Inspect and Clean Flow Switch ........................................................................................................................................... 22

Inspect Heating Coil and Desoot as Needed ...................................................................................................................... 22

Inspect/Clean/Adjust Electrodes ......................................................................................................................................... 23

Perform Engine Maintenance .............................................................................................................................................. 23

OIL BURNER ADJUSTMENT (ONLY NEEDED IF WHITE EXHAUST SMOKE APPEARS) ..................................... 24

TROUBLESHOOTING ................................................................................................................................................ 25

PARTS EXPLOSION– REV Y ..................................................................................................................................... 26

PARTS LIST– REV Y .................................................................................................................................................. 27

PUMP EXPLOSIONS .................................................................................................................................................. 28

COMET AXD 2527GE-NH PUMP EXPLODED VIEW ................................................................................................ 32

WIRING DIAGRAMS ................................................................................................................................................... 36

LIMITED WARRANTY ................................................................................................................................................ 39

About Your Pressure Washer

Thank you for purchasing a NorthStar hot water pressure washer! It is designed for long life, dependability, and top performance.

Intended Use. Washing siding, windows, walkways, driveways, patios, decks, fences, vehicles, boats, lawnmowers, ATVs and other equipment by:

 Producing a high-pressure water spray (heated or

unheated), and

 Incorporating cleaning chemicals into a low-

pressure water spray.

Note: Do not use for other purposes, as unforeseen hazards or equipment damage may result.

Water Supply. The pump requires a clean, standard tap water supply provided through a garden hose at a flow rate of at least 3 gallons per minute. Use of a backflow preventer on the water supply hose is recommended and may be required by local code.

Chemical Usage. Any cleaning chemicals that are used must be specifically approved for use in pressure washers.

Power Source. The pump is powered by an electric motor. The spray water is heated (when desired) by a spark-ignited, open flame burner fueled by diesel/kerosene/fuel-oil.

Supplies Required. Normal operation will require you to supply:

 Pump oil  Burner fuel if heating water (kerosene, diesel, or

fuel oil)

 Input water supply  Input water supply hose

See “Specifications” section of this manual for more detail.

Site Selection. Pressure washers used while the open flame burner is used to heat the water are for OUTDOOR USE ONLY unless specific exhausting guidelines are met. Read additional details in the “Before Each Use” section of this manual.

Personal Protection. Wear safety apparel during operation, including waterproof insulated gloves, safety glasses with side and top protection, and non-slip protective footwear. Some cleaning chemicals may require the use of a respirator mask (as instructed on chemical label).

Adult control only. Only trained adults should set up and operate the pressure washer. Do not let children operate. Pressure washers can generate forces greater than children can control and require judgment beyond what can be expected of them.

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 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 machine 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.

Specifications

MODEL

Model #

157305

157306

157307

157308

FLOW OUTPUT

Pressure Rating

1700 psi

2700 psi

2000 psi

2750 psi

Flow Rate

1.5 gpm

2.5 gpm

1.5 gpm

2.5 gpm

Maximum Temperature

250 F

POWER REQUIREMENTS

Dedicated NEMA

Receptacles

5-20R

6-30R

5-20R

6-30R

Volts

115V

230V

115V

230V

Amps

20A

30A

20A

30A

Hertz

60Hz

Phase

Single

DIMENSIONS/COMPONENTS

Length

38”

Width

26”

Height

43”

Weight (fueled)

385 lbs.

415 lb.

385 lb.

415 lb.

Pump Type

Ceramic Triplex Plunger

Motor Horsepower

1.5 hp

5 hp

2 hp

5 hp

High Pressure

Discharge Hose

3/8” x 50’

Chemical Injection Point

Injection dilution ratio 15-to-1

SUPPLIES REQUIRED (not included)

Burner Fuel

#1 or #2 Diesel, B5 or lower Biodiesel, Kerosene, or Fuel Oil

(Capacity: 8.25 gal.)

Pump Oil

(shipped with oil, but

refills required)

Comet: Universal Tractor Transmission Oil

or Mobil 1 Synthetic 15W-50

Cat: SAE Non-Detergent Oil

Input Water Supply

Standard tap water @ 20-100 psi, delivered @ 3.0 gpm or higher

Input Water Supply

Hose

Standard garden hose with inside diameter at least 5/8”

(at least 3/4” diameter if hose longer than 100 ft.)

Component Identification

1 2 3 4 5 6 7

1. Exhaust Vent: Provides an exit for burner exhaust gases.

2. High Pressure Water Outlet: A passage for water to exit pump and enter the hose.

3. Motor: Electric motor powers the pump.

4. Burner: The oil burner is preset and performance

tested at the factory. The Burner may need initial adjustment for peak performance. See “Oil Burner Adjustment” section for instructions on initial adjustment of the oil burner. You will need to use the handle to tip the pressure washer up in order to access the Burner from underneath.

5. Fuel Fill Cap: Vented cover for fuel tank.

6. Fuel Tank: The Burner has an 8.25 gal. fuel tankkerosene, #1 or #2 diesel, or fuel oil may be used. Do not mix fuel types.

7. Control Box: Flat surface for mounting switches.

8. Flow Switch: Water activated switch to control on

and off of burner.

9. Pump: A mechanical device that moves and pressurizes fluid. [Pump oil must be changed after first 40 hours of use, and then changed every three months or 500 hours of use. See “Maintenance and Repair” section for pump oil change instructions and recommendations.]

10. Gun Hooks: Spray gun storage location.

11. Power Switch: Flip up for on.

12. Thermostat: Controls power to fuel solenoid for

firing.

13. Control Panel: Power Switch (Reference 15), Thermostat (Reference 16) and Nozzle Storage (Reference 18) are located on control panel.

14. Nozzle Storage: Control Panel (Reference 17) has space for storing nozzles.

15. Fuel Filter/Water Separator: Filter in fuel line that removes water and screens out dirt and debris from fuel.

16. Power Cord Hangers: Storage Location

17. High Pressure Hose Hanger: Storage Location

Note: See “Parts Explosion” for additional detail.

18. Garden Hose Water Inlet: Connection point for standard garden hose. Garden hoses less than

100’ in length must have a minimum inner diameter of 5/8.” Garden hoses over 100’ in length must have a minimum inner diameter of 3/4.”

19. Rupture Disc: Over pressure safety device.

20. Quick Connector: Connection point on spray gun

for high pressure hose.

21. Spray Gun: Pressurized water is discharged.

22. Grip: Protected area on spray gun for additional

hold.

23. Lance Wand: Unprotected area on spray gun.

Special Equipment Safety Features

High Pressure Safety Device

Note: Shield not

Pump

Relief Valve

Cat pump

Comet

pump

00417

Safety Latch

High Temp

Limit

This unit is equipped with the following safety features:

High Pressure Safety Device (Rupture Disc)

Acts as a backup safety feature. If the Pressure Control Valve (Unloader) malfunctions, this separate highpressure safety device will open and relieve excess system pressure. Repair is required.

WARNING: Rupture Disc failure

If the high-pressure safety device ever discharges water, turn the unit off and do not use the machine. Call Product Support at 1-800-270-0810.

Temperature Control Switch

Measures water temperature and automatically turns burner off when temperature setting is reached. When water temperature drops, burner automatically reignites.

Pump Thermal Relief Valve

This valve, on the Unloader bypass port, protects the pump from overheating. The pump continues to work in bypass mode when you are not spraying. If high temperatures are developed during bypass mode, the Thermal Relief Valve will open and discharge hot water onto the ground, protecting the pump from overheating.

Note: One of two pumps will be on your machine.

Thermal

Figure 2

Spray Gun Safety Latch

Has a built-in trigger safety latch to guard against accidental trigger actuation.

Figure 1

shown for clarity

Figure 3

Safety

DANGER

WARNING

CAUTION

NOTICE

Hazard Signal Word Definitions

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.

CHEMICAL NOZZLE

0° NOZZLE 25° NOZZLE15° NOZZLE 40° NOZZLE

STEAM NOZZLE































2005 NT+E Co. 800-270-0810

RISK OF ELECTROCUTION

1. Connect only to properly grounded outlet. Do not remove ground pin.

2. Inspect cord before using - Do not use if cord is damaged.

3. Keep all connections dry and off the ground.

4. Do not touch plug with wet hands

5. This product is provided with a Ground Fault Circuit Interrupter built into the power cord plug. If replacement of the plug or cord is needed use only identical replacement parts.

6. Read owner's manual before using.

DO NOT REMOVE THIS TAG

Part No. 778070

WARNING

Part No. 778070

RISK OF ELECTROCUTION

1. Connect only to properly grounded

outlet. Do not remove ground pin.

2. Inspect cord before using - Do not

use if cord is damaged.

3. Keep all connections dry and off

the ground.

4. Do not touch plug with wet hands

5. This product is provided with a

Ground Fault Circuit Interrupter built

into the power cord plug. If

replacement of the plug or cord is

needed use only identical

replacement parts.

6. Read owner's manual before using.

DO NOT REMOVE THIS TAG

WARNING

2005 NT+E Co. 800-270-0810

15° NOZZLE0° NOZZLE

CHEMICAL NOZZLE STEAM NOZZLE

25° NOZZLE 40° NOZZLE

Ref#

Part#

Description

305410

Caution, Hot Water

777725

NorthStar

305427

Danger, Hot Water

778176

Control Panel

778174

Nozzle

778070

Cord Warning

N/A

Warning/Start-Up Instructions

Always make sure safety labels are in place and in good condition. If a safety label is missing or not legible, order new labels or unsafe operation could result. To order replacement safety labels, call NorthStar Product Support at 1-800-270-0810.

Safety Decal Locations

Assembly and Initial Set-Up

Wheel

Qty-2

Manual Bag

High Pressure Hose

Qty-1

Spray

Qty-1

Pressure

Gun

Qty-2

Wheel

Hose

Qty-3

Nozzles

Wheel Retainer

Wheel

Axle

Grease Zerk

Gun Hooks

Hose Hooks

5/16 Nut

Qty 5

Step 1. Inspect & Unpack

Inspect pressure washer immediately after delivery for missing parts or damage. Find and separate components identified in Figure 4 and Figure 5.

 For missing or damaged components, contact Product

Support at 1-800-270-0810.

Gun

Qty-1

Washer

Qty-1

Figure 4 – Pressure Washer Components

Retainers

Qty-2

Qty-6

Hooks

Figure 5 – Parts to be Installed

Step 2. Assembly

Insert nozzles in spaces provided on the control panel.

To install wheels, refer to Figure 6:

 Raise pressure washer off floor using blocks or

ramps and secure.

 Install two wheels with grease zerk away from

frame.

 Slide wheel retainers onto end of each axle.

Tighten retainer setscrew with a hex wrench.

Figure 6

 Install hose hook and gun hooks in the following

locations fasten with nut:

Step 3. Verify Electrical Connection

Grounding

Product must be grounded. The supply cord is equipped with an equipment-grounding conductor and a grounding plug. This plug must be plugged into an outlet that is properly installed and grounded in accordance with all local codes and ordinances.

Ground Fault Circuit Interrupter Protection

Connecting the pressure washer through some type of ground fault circuit interrupter (GFCI) protector is required to comply with the National Electric Code

(NFPA 70) and to provide additional protection from the

Handle

risk of electric shock.

Note: Before use, your GFCI should be tested at either built-in or receptacle base.

1. For a product rated at 125 volts or less, the GFCI is build into the power cord plug.

 This GFCI device provides additional protection

from the risk of electric shock. If replacement of the plug or cord is needed, use only identical replacement parts.

2. For a product rated at more than 125 volts, a receptacle based GFCI is required.

DANGER: Electrocution hazard

Improper connection of the equipment or grounding conductor can result in a risk of electrocution. Check with a qualified electrician or service personnel if you are in doubt as to whether an outlet is properly grounded. Do not modify the plug provided with the product. If it will not fit the outlet, have a proper outlet installed by a qualified electrician. Do not use any type adapter with this product.

Figure 7

Step 4. Moving and Handling

WARNING: Lifting hazard

The pressure washer is heavy. It can crush and cause serious injury if it rolls out of control or tips over. Follow the instructions below for safely moving the pressure washer.

Moving your pressure washer around

 Use handle to manually move pressure washer.  To turn, push down slightly on handle and pivot

pressure washer on its wheels. Do not move or operate cross-wise on a slope. High center of gravity can cause tipping.

 Block wheels to prevent inadvertent movement.  Never pull by hose. Do not move this machine by

pulling on the hose. Hose or connections could fail and result in catastrophic high-pressure

To reduce risk of injury, do not attempt to manually lift the pressure washer. Use a shallow ramp to raise or lower pressure washer to a different elevation

release of fluid as well as hose whipping.

+ 28 hidden pages

North Star M157305Y, 157305, 157306, 157307, 157308 Owner's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual