M157595ag owner's manual instructions for set-up, operation, maintenance & storage t railer m ounted , h ot w ater p ressure w asher 4000 psi / 4 gpm portable outdoor-use only this pressure washer produces both cold and hot water high pressure spray. Cleaning chemicals may be incorporated into the s...
Hazard signal word definitions 2 equipment protection quick facts inspect upon delivery stop! Closely inspect to make sure no components are missing or damaged. See the "assembly and initial set-up" section for instructions on whom to contact to report missing or damaged parts. Fill with engine oil ...
Table of contents 3 about your pressure washer ............................................................................................ 4 specifications ......................................................................................................................... 5 component identific...
About your pressure washer 4 thank you for purchasing a northstar hot water pressure washer! Your machine is designed for long life, dependability, and the top performance you demand. This pressure washer is designed to: 1) produce a high-pressure spray of heated or unheated water (up to 7 gallons p...
Specifications 5 model model # 157595 flow output pressure rating 4000 psi flow rate 4 gpm maximum temperature 210 f dimensions / components length 129" width 76" height 60" weight 970 lbs. – dry 2500 lbs. – water tank full pump type cat 66dx engine displacement 630cc high pressure discharge hose 3/...
Component identification 6 ref # description ref # description ref # description 1 unloader 8 water inlet (feed tank) 15 water outlet (high pressure) 2 lifting eye 9 ball valve (feed tank) 16 engine key switch 3 engine (see engine manual) 10 ball valve (city tap water) 17 circuit breaker 4 inlet plu...
Component identification 7 reference guide 1. Unloader valve that regulates pressure and directs flow into bypass when trigger is closed. 2. Lifting eye used to lift the unit. 3. Engine the air-cooled engine powers the pump. 4. Inlet plumbing means of connecting garden hose to pump inlet. 5. Diesel ...
Safety labeling 8 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. 1 2 5 6 3 4.
Safety labeling 9 on-product warning labels ref # part # description 1 782325 danger & warning 2 305410 caution hot 3 777721 operating instructions 4 777778 towing/moving instructions 5 786633 towing warning 6 782397 battery hazard eng in es hon da p ower ed by never use inside any building, structu...
Special equipment safety features 10 high pressure safety device (rupture disc) warning: if the high-pressure safety device ever discharges water, turn the engine off and do not use the machine. The device will no longer function properly. See a dealer or call product support at 1-800-270- 0810. Thi...
Assembly and initial set-up 11 steps for assembly / initial set-up step 1. Unpacking & delivery inspection step 2. Trailer assembly step 3. Initial pump & engine preparation step 4. Battery installation each of these steps is discussed in the below: step 1. Unpacking & delivery inspection find and s...
Assembly and initial set-up 12 figure 3 – hardware bag contents 5/16 flat washer qty-8 part # 82099 1/2" flat washer qty-2 part # 82122 1/2" class g nut qty-3 part # 82291 1/2 x 5" bolt qty-1 part # 82119 1/2 x 4" bolt qty-2 part # 82250 5/8 x 1-1/2" bolt qty-4 part # 82251 5/8" class g nut qty-4 pa...
Assembly and initial set-up 13 step 2. Trailer assembly warning: the pressure washer is heavy. It can crush and cause serious injury if it rolls out of control or tips over. Follow all assembly instructions exactly as presented below. 1.) remove the top and four sides of the steel crate. 2.) remove ...
Assembly and initial set-up 14 step 2. Trailer assembly (continued) 14.) attach coupler to a-frame with two 1/2x4" bolts and class g lock nuts. Tighten each bolt to 90ft.-lbs. Use a torque wrench. 15.) attach safety cables to the a-frame with 1/2" x 5" bolt and class g lock nut. Place a flat washer ...
Assembly and initial set-up 15 step 3. Initial pump, engine & high pressure hose preparation prepare water pump verify pump oil level . Note: the pump is shipped with oil. *change oil after first 40 hours, then every 3 months or 500 hours 1. Verify oil level: a. Remove shipping tape and black vent p...
Assembly and initial set-up 16 step 4. Battery installation install a 12-volt standard automotive battery (group 75) with a minimum 18 amp-hour rating. The engine will run but the burner will not fire unless a battery is installed. The battery is to be supplied by the customer and should be installe...
Moving and towing 17 warning the filled pressures washer is heavy. It can crush and cause serious injury if it rolls out of control or tips over. Always keep the jack cranked down to help balance the trailer when it is not connected to a vehicle hitch. Follow all the instructions below for safely co...
Moving and towing 18 attach safety cables two safety cables must be used while towing . Cross safety cables under the coupler, allowing only enough slack for vehicle turns. Plug in lights plug light pin connector into vehicle . Raise the jack always crank the jack into the up position before towing....
Before each use 19 follow the steps below prior to each use of the pressure washer. Steps to follow before each use step 1. Check equipment step 2. Add fuel(s) step 3. Select suitable worksite step 1. Check equipment check/add pump oil check/add pump oil . *change oil after first 40 hours, then ever...
Before each use 20 never attempt to repair a high-pressure hose or component – always replace it with a part that is rated at or above the pressure rating of this machine. 1) check hoses, fittings, wand, trigger gun and connections for signs of wear, cracks, looseness, or leaks. Replace as required....
Before each use 21 always follow these general safety rules when fueling: 1) turn pressure washer off and allow to cool for at least two minutes before removing any fuel cap. Note: a running or still-hot engine or burner is hot enough to ignite fuel. 2) fill fuel tank outdoors – never indoors. Fuel ...
Before each use 22 4) wipe any excess fuel from unit before starting step 3. Select suitable outdoor worksite before using the pressure washer, you must understand the criteria for selecting a suitable location for operation. Note that this pressure washer is for outdoor use only. Warning : you must...
Before each use 23 or other vehicles, on boats, or on pick-up truck beds. Warning : never attempt to attach ductwork to the engine muffler or burner exhaust to allow for installation inside an enclosure. This could cause hot air deflection, heat build-up, and increased exhaust back-pressure, resulti...
Operation 24 after you have checked and fueled the equipment and positioned it in a suitable worksite, it is time to start your pressure washer. The following are the procedures necessary for safe, successful operation of your pressure washer. Warning carefully read and follow all instructions and s...
Operation 25 connect your water supply if using tap water: follow these instructions when supplying water from a pressurized source such as city tap water: acquire a suitable garden hose and attach to the water supply: 1. Acquire a suitable garden hose: a. The water supply garden hose must have an i...
Operation 26 if using water tank: follow these instructions when supplying water from the feed tank: 1. Ensure that you have the tank feed ball valve open, and the city tap water ball valve closed, as indicated in the diagram below. 2. Make sure the water in your tank is clean. Debris can cause exce...
Operation 27 3. Release the collar, making sure it springs back and re-seats to its original (non-retracted) position. (figure 8b). Check the connection by pulling on the hose to ensure a positive connection. Figure 8b select spray nozzle your pressure washer is equipped with four high-pressure nozz...
Operation 28 1. Make sure the engine is off and the hose line depressurized. 2. To install the nozzle, pull the collar back and twist the nozzle firmly into the coupler on the end of the wand. (figure 9a) figure 9a 3. Release the collar, making sure it springs back and re-seats to its original (non-...
Operation 29 low pressure adhere better to the surface being cleaned, allowing the formula time to react and remove dirt more effectively. Note: an external chemical injector pump is not recommended for use with this pressure washer. Warning : chemical spraying never spray acids, corrosives, or abra...
Operation 30 4. Submerge the suction strainer connected to the braided chemical hose into a bucket containing the chemical solution. See figure 10. Step 3. Spraying safety rules for operation before starting the pressure washer, review the following general safety rules for operation: conditions for...
Operation 31 well as hose whipping. Avoid sharp objects . Keep hose away from sharp objects. Bursting hoses may cause injury. No load bearing . Do not use the pump to support other items of equipment that impose unacceptable loads on the pump. Do not attempt to use this machine as a prop. Lock trigg...
Operation 32 purge air from the water supply hose by squeezing the trigger until a steady stream of water flows out of the nozzle at low pressure. (air in the hoses can cause damage to the pump, so always make sure all the air is out of the hoses before starting the pressure washer engine.) make sur...
Operation 33 3. You can apply chemicals with either warm or cold water. Check chemical label. If warm water is specified, start burner according to instructions provided below. 4. Apply chemicals by squeezing the spray gun trigger. The chemical injector will draw the chemical into the water stream. ...
Operation 34 the "oil burner adjustment instructions" step in the "set-up" section of this manual. 5. When the trigger is released, a pressure switch automatically turns the burner off. Also, when the temperature setting is reached, the thermostat automatically turns the burner off. Warning : it is ...
Operation 35 pressure first and follow instructions for attaching a nozzle). 2. Clear the cleaning area of all persons. Keep children and pets away. 3. Hold the spray gun firmly with two hands and a sturdy stance -- gun kicks back when triggered. Caution : spray gun metal gets extremely hot when usi...
Operation 36 9. If temporarily interrupting spraying, rotate trigger safety latch downward to the locked position to guard against accidental trigger release. 10. Always turn off the engine and activate spray gun trigger to relieve system pressure when: the sprayer is unattended, or disconnecting ho...
Storage 37 storage when you are finished using the pressure washer, you must prepare the sprayer for storage and store it in a proper location. Note: o if you will be storing the sprayer in freezing conditions , follow the instructions for preparing the sprayer for storage in freezing conditions. O ...
Storage 38 3. Using a wrench, disconnect the plumbing that connects to the heating coil inlet. The water will flow out of the heating coil. This will protect the coil from freeze damage. 4. Open both water inlet ball valves and remove the cap from the water filter. This will drain the pump and water...
Storage 39 d. Replace spark plug, but do not reconnect the spark plug wire. Prepare pressure washer for storage prepare the pressure washer for storage. 1. Disconnect the battery, remove it from the battery compartment, and store it indoors. 2. Make sure the engine start switch is off and fuel valve...
Burner adjustment 40 oil burner adjustment (only needed if white exhaust smoke appears) the oil burner is preset and performance tested at the factory (elevation 1100 feet). Different altitudes may require a one-time initial burner adjustment. Caution: if white smoke appears from the burner exhaust ...
Burner adjustment 41 5. Slowly open the air band until white smoke just starts to appear. 6. Turn air band halfway back to the black smoke position previously noted. Tighten the locking screw. 7. Now fine tune the burner air by adjusting the shutter: a. Locate the shutter as shown in figure 14 below...
Maintenance & repair 42 inspect and maintain your pressure washer as specified below in order to keep it in safe and optimal working order. Follow all safety rules and recommended maintenance instructions. Warning always shut off water supply, bleed water pressure, turn off engine and disconnect the...
Maintenance & repair 43 270-0810. Replacement parts . If a part needs replacement, only use factory approved repair parts. Replacement parts that do not meet specifications may result in a safety hazard or poor operation of the pressure washer and will void the warranty. Keep pressure washer clean k...
Maintenance & repair 44 clean water filter clean the water filter before each use. Warning : when cleaning filters, check whether dangerous chemicals have been used with the filter and take any precautions that may be recommended by the manufacturer of these chemicals. Always dispose of hazardous fl...
Maintenance & repair 45 recharge and maintain battery inspect, recharge, and maintain battery according to your battery manufacturer's instructions. Do not store with battery charger always connected. Batteries that are over- charged can boil themselves dry and produce excessive amounts of hydrogen,...
Maintenance & repair 46 maintain burner's fuel filter/water separator drain water from burner's filter bowl as needed, and replace filter after every 500 hours of use or as needed. 1) after each use of the burner, visually check the filter bowl. If any water has accumulated, drain it via the water d...
Maintenance & repair 47 figure 18 inspect heating coil and desoot as needed inspect and desoot coil annually . Most coils never require desooting. However, poor grades of fuel oil or inadequate combustion air will cause heavy soot build-up on the outside surface of the heating coil tubing. These dep...
Maintenance & repair 48 inspect electrodes inspect electrodes yearly and make adjustments as needed. 1) remove the 4 nuts that attach the burner to the heating chamber. You do not have to disconnect the fuel lines or the electric cords. Figure 20 2) pull the burner out from underneath the heat excha...
Maintenance & repair 49 note to commercial users: all mechanical equipment, no matter how well designed, will need maintenance and repairs. A northstar pressure washer is no exception. At times, a northstar pressure washer may become inoperable because repairs are required. Northstar product support...
Troubleshooting 50 any questions, comments, problems, or parts orders call northstar product support 1-800-270-0810 engine will not start causes solutions low oil shutdown fill engine with the adequate amount of oil. Cold engine choke engine to start. No fuel add gas to engine, make sure fuel shutof...
Parts explosion 157595 – rev ag 51.
Parts explosion 157595 – rev ag 52 ref part # description qty ref part # description qty 1 783394 honda engine 18hp 1 65 783034 tank support 1 783396 honda muffler kit 66 777838 1/4” plug 1 3 777837 3/8" npt plug 2 67 790561 thermostat 1 4 38198 cat pump, 4gpm 1 68 777855 toggle switch 1 5 777347 3/...
Parts explosion 157595 – rev ag 53.
Parts explosion 157595 – rev ag 54 ref part # description qty ref part # description qty 1 783427 hose reel 2 21 50nbr12 1/2" hb x 3/4" npt elbow 1 3 777903 frame, skid 1 22 17141 3/4" hose clamp 1 4 30198 200 gal tank 1 23 791252 hose, 3/4" id pvc suction 3.83’ 5 777707 tank strap 2 24 50csc128 3/4...
Pump explosion – rev ag 55.
Wiring diagram – rev ag 56.
Summary of important safety information 57 this section provides a summary of the various safety procedures and measures that have been presented throughout the manual. Keep this summary handy and refer to it to refresh your memory about how to safely use your pressure washer. Warning carefully read...
Summary of important safety information 58 installation / initial set-up level, heat-resistant surface . Situate pressure washer on a firm, level, and heat-resistant surface with good drainage. Ensure it sits level and will not slide or shift during operation. Block wheels to prevent movement. Preve...
Summary of important safety information 59 vehicle handling. Be aware that vehicle handling will be affected when towing the filled pressure washer. Exercise caution to avoid loss of control or pressure washer overturning: o keep speed to a minimum so you can maintain control at all times. Reduce sp...
Summary of important safety information 60 incoming water supply on. Do not run the pump without the water supply connected and turned on. Operating the pressure washer without an incoming flow of water will damage the pump. Wait before re-lighting burner. Never attempt to immediately run or re-ligh...
Summary of important safety information 61 smoking/sparks . Never smoke near the running engine, and never operate near sources of sparks or flames as flammable fuel vapors are in the vicinity of the pressure washer. Lock trigger safety latch when not spraying . Spray gun is equipped with a built-in...
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Limited warranty 63 dear valued customer: the northstar product you just purchased is built with the finest material and craftsmanship. Use this product properly and enjoy the benefits from its high performance. By purchasing a northstar product, you show a desire for quality and durability. Like al...
64 manufactured by northern tool + equipment co., inc. Burnsville, mn 55306 northerntool.Com.
