Meiji SEN3R-4W Operation Manual

Thank you for purchasing Meiji cleaning gun.
■ Be sure to read this manual carefully before using the product for correct use of it.
■ After reading, keep this manual in a convenient place with great care.
■ In case this product is loaned or sold to others, be sure this manual accompanies the product.
■ If this manual should be lost or damaged, place an order with us or the agent or sales shop for a replacement.
■ Parts of the equipment may be changed for improvement of quality, function or safety of the product. In such cases, a part of the contents or illustrations in
this manual may not be the same with the actual product.
■ If there should be any part of this manual which is not clear or which you feel should be brought to our attention, please consult with the store where you
brought the product or the nearest agent or sales shop of the product.
Caution
1. Materials
● The metal area is made of stainless steel, and the O-ring is made of Viton. The flexure joint is made of POM, and the rotary joint is Teflon.
● Operating temperature is between 0˚C and 80˚C. If you use hot water for the product, wear protective equipment or wrap a thermal insulator over the
cleaning gun.
Also, if the operating temperature exceeds 60°C, the lubricant will melt therefore periodical maintenance is required.
2. Equipment to Use
● The product is for tap water. It cannot be used at a vapor-mixing-type mixing valve outlet. If the mixing valve outlet is closed, vapor will flow backward.
Install a check valve on the water side and vapor side.
3. Handling
● Dropping the product can cause it to deform or break.
● Do not spray toward people or animals.
● Do not use the gun above the maximum working pressure (0.69 MPa).
● To prevent foreign objects from entering the gun, be sure to attach the filter (13) on the back of the body (1). (Pay attention to where you mount the filter.)
4. Other Precautions
● Do not modify the equipment. If you modify the product, it cannot provide sufficient performance. Also, a failure of the machine may result.
● If you find a problem, immediately stop the product, and examine the cause of the problem. Do not use gun until the problem can be solved.
1. Operation Procedure
1. Insert a hose to the hose nipples (8, 19, 24) all the way. Use commercial hardware to attach it tightly.
2. Direct the tip of the nozzle toward the direction you want to spray, and pull the trigger (2).
3. The flow rate changes depending on how much you pull the trigger. Because water pressure varies depending on your region and environment,
the spraying pattern may differ.
4. If the adjustable nozzle is mounted, move the slider (14) back and forth to change spraying pattern.
5. You can hold the trigger (2) in place with the ring (7) for continuous spraying. Use this function to fill water into a tank or similar purposes.
2. Maintenance and Inspection
1. Check for looseness and leakage from each area.
2. Points to Inspect
Connection
loose/leakage
Leakage from
the nozzle tip
3. Change O-rings every six months. Be careful not to damage an O-ring during replacement. Widening an O-ring suddenly may cause it to break, so slowly
attach it. (We offer an optionally available jig convenient for changing O-ring P3 (9) on the valve stem (3).)
4. When changing an O-ring, check if it is broken and that if it operates normally.
5. If the amount of sprayed water or spraying intensity has decreased, the filter (13) may be clogged. Remove the filter (13) and clean or replace it.
Operation Manual
This mark indicates a potential danger which may result in injury if instruction manual is not followed
appropriately or when appropriate attention is not paid beforehand. This also indicates the possibility of serious
damage to the product.
Defects arising from mishandling are not covered under warranty.
Inspect the gun daily to use it in the best operating condition.
Valve
operation/leakage
Connection
loose/leakage
Introduction
Symptom Cause
Leakage from the 1. The O-ring P6 (10) is worn
nozzle tip or damaged.
Connection 1. The connection is loose.
loose/leakage 2. The O-ring P14 (11) or S16
(12) is worn or damaged
Valve 1. O-ring P3 (9) or P6 (10) is
malfunction/leakage worn or damaged.
SEN3R
Stainless steel Cleaning Gun
Corrective action
1. Replace the O-ring P6 (10).
1. Tighten the connection.
2. Replace O-rings P14 (11) and
S16 (12).
1. Replace O-rings P3 (9) and
P6 (10).