MyTana MV84 User Manual Download Page 2

PG  2

— IMPORTANT —

FOR YOUR SAFETY, AND TO ENABLE 

MAXIMUM EFFECTIVENESS OF 

YOUR EQUIPMENT, READ (AND 

UNDERSTAND) THIS INSTRUCTION 
MANUAL ENTIRELY BEFORE USING 

YOUR HIGH-PRESSURE WATER 

JETTING UNIT

FAILURE TO FOLLOW INSTRUCTIONS 

AND REGULATIONS CONTAINED IN  

THIS MANUAL CAN RESULT IN 

SERIOUS INJURY TO THE OPERATOR 

AND/OR TO ANYONE IN CLOSE 

PROXIMITY TO THE WORK AREA.

The Jetting Process

Sewer jetting (or hydro-jetting) uses a combination of water 
pressure (psi) and flow (gpm) through a hose and nozzle to 
flush debris out of drains or sewer lines. 

Water jetting is used to penetrate and wash out clogs or ice, 
potential blockages or to simply clean the walls of drains and 
sewer lines to prevent future blockages.

Sewer jetting differs from normal pressure washing:
•  Sewer jet nozzles direct the flow of water back toward the 

operator at a 20 to 45 degree angle. This backward stream 
propels the sewer nozzle and hose forward into the sewer 
line and also cleans the walls of the pipe.

•  Jetting pumps deliver more flow and controlled pressure to 

clear tough blockages.

Components of hydro jetters: Water pump, motor,  hose 
reel; various sub-components that protect the pump and the 
operator; various nozzles for various cleaning applications and 
situations. Larger jetters use a water storage tank for water 
supply buffer.

MyTana stocks replacement parts for our 
jetters. Many are available to purchase online 
at mytana.com/jetter-parts

Safety First!  

Instructions and Precautions

Pumps  

•  Remove “shipping” plug on top side of pumps and 

replace with vented plug.  This is very important for 
the proper operation of the pumps. 

•  Do not store or run the pumps on its side or at a 

sharp angle, since oil can run out of the vent plug.

Environment   

•  Use caution in confined, wet areas. Drain cleaning  

professionals often work directly through non-trapped 
openings into sewers — make sure that there is adequate 
ventilation into the work area. 

•  Neutralize or remove corrosive drain cleaners from drain 

before starting. 

•  Do not operate machine in areas where combustible gases, 

liquids or dust are present. Fire or explosion may occur.

Keep bystanders or unauthorized persons away 

Insist they keep a safe distance before operating  
high pressure equipment.
•  Never hold on to nozzle or point it at anyone with machine 

turned on. High pressure water streams can cause serious 
bodily harm. 

Always insert hose at least 3-4 feet into pipe opening and 
hold onto hose before turning the machine on.

Shut the machine down: 

•  When changing nozzles, hose or reels.
•  Before disconnecting water supply. Running a water pump 

“dry” will seriously damage the water pump.

•  If it will be unattended.
•  If machine fails to run properly.

Common Sense  

•  Don’t operate equipment while smoking, under the 

influence of drugs, alcohol or if taking medication that alters 
alertness.  

•  Wear goggles or a face shield to product your eyes, protec-

tive gloves, rubber sole boots, and other  
protective clothing as required.

•  Keep all labels, decals, warnings, cautions, and instructions 

with machine. For new decals or labels contact Mytana.

•  NEVER run flammable liquids or toxic chemicals (such as 

insecticide or weed killer), acids or hard caustics (such as lye) 
through the pump.  Only water!

Vented 

Plug

Read Shut Down 

instructions on pg 7.

MyTana    MV84 DUAL CART JET TER  User Manual

Summary of Contents for MV84

Page 1: ...f Quality Sewer Drain Cleaning Equipment since 1957 800 328 8170 Factory Direct Customer Service M F 7am 5pm CST Competent Polite Clear www MyTana com 746 Selby Ave St Paul MN 55104 fax 651 222 1739 M...

Page 2: ...ug This is very important for the proper operation of the pumps Do not store or run the pumps on its side or at a sharp angle since oil can run out of the vent plug Environment Use caution in confined...

Page 3: ...n see page 7 Keep antifreeze in hose and pump in freezing temperatures Additional maintenance details follow in this manual MV84 Components Hoses and Nozzles Your jetter works via the proper blend of...

Page 4: ...et elbow Pressure gauge Using the remote Set the engine speed to high automatically increases the pressure to 4 000 psi Conversely switching the engine speed to low drops the pressure to less than 1 0...

Page 5: ...rottle Choke Electric Start Jumper hose Jumper hose hook up Ball valves Pre Operation Checklist Be sure you understand all safety precautions pg 2 and have been trained to use the machine Locate jette...

Page 6: ...psi when the motor is throttled up and will drop when the motor is throttled down pressure may also be adjusted with regulator knob during operation Shutting Down Throttle down the motor press the SPE...

Page 7: ...freezing temps or if idle for more than 2 3 days see procedure at left Never let pump run dry Pump cavitation can occur in only a few seconds of low water supply Ensure adequate source supply before o...

Page 8: ...ngs Change oil at regular interval Inadequate water supply to pump creating a vacuum lock Ensure adequate tap water supply clear inlet filter Oil leaks Worn pistons and or leaking crank seals crankcas...

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