Maintenance Instructions

WARNING: Do not alter the unloader valve’s maximum pressure. Excess pressures could cause serious injury and/or pump damage. Any alteration other than turning the adjustment knob will void your warranty.

To Stop

1.If detergents were used, draw clean water through the detergent inlet line to purge detergent. Failure to do so may clog the chemical injector.

2.Turn the pump switch OFF.

3.Turn OFF the water supply.

4.Squeeze the trigger to relieve the system pressure.

WARNING: Unauthorized machine modification or use of non-approved replacement parts may cause personal injury and/or property damage and will void the manufacturer warranty.

All mechanical equipment, no matter how well designed, will need repairs. A North Star pressure washer is no exception. At times, a North Star pressure washer may be inoperable because repairs are required. North Star Customer Service will assist in these repairs as needed, but if an inoperable pressure washer creates a major expense to your business then we strongly recommend the following:

1.Have someone on staff who is trained in the operation of the pressure washer and is capable of making minor repairs and performing all preventative maintenance procedures as outlined in the provided manuals.

2.Keep a stock of recommended service parts for maintenance and minor repairs.

Recommended Service Parts List

Following is a list of the service parts we recommend stocking.

Description	Part Number
Nozzle 5 Pack (157303)	778197
Nozzle 5 Pack (157304)	778281
O-Ring for Hose	30784
Pump Oil	4043
Chemical Injector	31935
Spray Gun	319153
50’ Pressure Hose	32276

Maintenance Mode

Before performing any maintenance on the pressure washer, it must be placed in maintenance mode.

A.) Turn off water supply B.) Bleed water from system

C.) Disconnect power by unplugging power cord and/or flipping circuit breaker OFF.

Maintenance Schedule

What to Check	When To Check	What to Do
Inlet Filter	Each Use	Clean
Hoses	Each Use	Check for Wear
Bolts	Each Use	Check for Loose
		Bolts

Cleaning The Inlet Filter

WARNING: Check whether dangerous chemicals have been used, and take precautions when handling filters.

A.) Unscrew inlet filter cap

B.) Remove Inlet filter

C.) Run water though to clean filter

Checking the Hoses

WARNING: Do not use a finger or skin to check for leaks. Escaping fluid under pressure has sufficient force to penetrate the skin, causing serious injury. Do not operate the pressure washer if the hose is cracked, worn, or leaking.

A.) Check all hoses for leaks

B.) Check all hoses of worn areas

Good

Bad

Water Leak

Wire Mesh	Bad
	00426

M157304E specifications

The North Star M157304E is a cutting-edge piece of technology known for its outstanding performance and robust features. This versatile system has been designed to cater to various industries, from aerospace to industrial applications, ensuring that it meets diverse operational demands.

One of the standout features of the North Star M157304E is its advanced navigation system. Utilizing a combination of GPS, GLONASS, and BeiDou satellite systems, it provides accurate positioning data, essential for applications requiring high precision. This multi-system approach not only enhances reliability, but also ensures that the device remains functional in environments where one or two navigation systems might falter.

The device boasts an impressive data processing capability, powered by a high-speed processor that allows for real-time data analysis. This feature is particularly beneficial for time-sensitive operations where quick decision-making is crucial. The M157304E supports various data communication interfaces, including Wi-Fi, Bluetooth, and cellular connectivity, enabling seamless integration with other devices and systems.

In terms of durability, the North Star M157304E is engineered to withstand harsh environmental conditions. It features a rugged, weatherproof housing that protects the internal components from moisture, dust, and extreme temperatures. This characteristic makes it suitable for outdoor deployments in challenging climates, ensuring consistent performance and longevity.

The M157304E also prioritizes user experience with an intuitive interface. The device comes equipped with a high-resolution display that presents data in a clear and comprehensible manner. Touchscreen functionality allows for easy navigation through various settings and options, enhancing usability for operators of all skill levels.

Energy efficiency is another significant attribute of the North Star M157304E. It incorporates advanced power management technology that extends battery life without compromising performance. This feature is crucial for applications where access to power sources may be limited, allowing for extended periods of use in the field.

Overall, the North Star M157304E stands out as a reliable, high-performance device equipped with state-of-the-art technology. Its advanced navigation capabilities, robust data processing, durability, user-friendly interface, and energy efficiency combine to make it an ideal choice for professionals seeking a dependable solution for their operational needs. This device is poised to redefine industry standards and elevate productivity in various applications.

North Star M157304E specifications Maintenance Instructions

Models: M157304E

To Stop