MyTana M20-M20T TrapBlast Electric Jetter User Guide

MyTana M20-M20T TrapBlast Electric Jetter

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

Safety First

Instructions and Precautions

Read and understand these safety warnings before using the M30 jetter. Drain and sewer cleaning can be dangerous if warnings are ignored. Follow appropriate safety procedures, your company’s policies and applicable safety codes and/or laws while operating this machine.
Environment

• Use caution in confined or wet areas. When working directly through non-trapped clean outs or openings into sewers, make sure that there is adequate ventilation in the work area.
• Neutralize or remove corrosive chemical 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 4-5 feet into pipe opening and hold onto hose before turning the machine on.

Electric Jetters

• This is electric equipment in a wet environment. Every precaution should be taken when water and electricity are in close proximity.
• Never run your jetter without a properly grounded electrical supply and hookup.
• If an extension cord is needed beyond the built-in 25’ cord, use 12gauge or heavier to power the M20
• Avoid getting the electrical connections and components wet.

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 under the influence of drugs, alcohol or if taking medication that alters alertness.
• Wear goggles or a face shield to product your eyes, protective gloves, rubber sole boots, and other protective clothing as required.
• 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!
• NEVER use chemicals or agents that are not compatible with the PVC (polyvinyl chloride) or neoprene covering of the hose.
• NEVER clean the machine using its own spray.
• High-pressure spray could damage components.
• Keep all labels, decals, warnings, cautions, and instructions with machine. For new decals or labels contact Mytana. Additional care and maintenance details follow in this manual.

The Jetting Process

• Sewer jetting (or hydro-jetting) uses a combination of water pressure (psi) and flow (gpm) through a hose and nozzle to used to penetrate and flush out 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.

Assembly

Remove “shipping” plug on top side of pump 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.
Follow Pre-operation checklist and Operation instructions as outlined on.

Model Details

Refer to the photos below for the location of controls and components. Pump details are on next page. M20T model will have the pump/motor caddy unit only.
Motor
Instructions for startup/shutdown of the motor are on the following pages. Additionally, refer to the motor’s manual for details and care of the motor. M20 The motor/pump unit may be removed from the cart. Pull out the lock-pin and lift the unit off the frame.

Hose and Nozzles

Your jetter works via the proper blend of water pressure and water volume: the more water that has to pass through the restriction of a hose, the less pressure you will have at the nozzle end. To optimize cleaning power, use the shortest hose with the largest inside diameter that you can. The orifices (holes) in the nozzle affect pressure. Over time, the orifices in your nozzle will wear, resulting in pressure drop and reduced cleaning effectiveness. Nozzles need to be replaced as normal wear occurs.

Pumps
This section includes information about the components of the pump, and basic care. Specific maintenance and care details are on pages 7-8, as is a detailed breakdown of pump parts.
Pressure Regulator/Unloader
The pressure regulating unloader both regulates the pressure and relieves pressure on the pump while in bypass. The regulator knob is located at the pump. It allows you to adjust pressure during operation. At the end of each job, reduce the pressure to zero to prevent pump lock. Greater pressure requires more power/amperage from the power source. On 15 amp circuits, maximum pressure may be 1,200 psi, while 20 amp circuits can support 1,500 psi.

Thermal Relief Valve

Water temperatures in excess of 140° F will damage pump seals. The thermal relief (PTP) valve protects the pump should it overheat by opening and releasing the hot water. Cool water from the source can then flow through the pump. Over heating can occur if the pump runs in bypass, meaning the pump is running but no water is being pushed through the hose for extended periods of time. The PTP valve will wear out if opened too much and will need to be replaced.
Pulse Valve
The stem and handle extending from one cylinder of the water pump enables pulsation of the water stream through the hose and nozzle. Turning the pulse control handle clockwise (right), one valve of the pump is temporarily disabled. This creates pulsation or vibration in the hose, allowing the hose to “wiggle” through multiple or tight bends easily. Turn the control left to stop pulsation.
NOTE: Pulsing creates extreme vibration and faster wear on the pump. Use pulsation only as needed, do not use if a blockage or sewer line configuration does not require it.
Water Inlet and Filter
The water inlet has a filter to prevent small debris from running through your pump. However recheck the inlet filter before each use to make sure there is no obstruction. Before attaching source hose to the jetter, run water through the source hose to flush debris out of the faucet and hose. Make sure the water is running clean and clear.
Basic Care
• Do NOT run pump without water in it. This can damage the cylinder walls or the pump casing.
• Do not use water more than 140°.
• NEVER run pump if there is ice in pump or outlet hose.
• If the M30 will be unused for more than 2-3 days, even in warm temperatures, we recommend running antifreeze through pump and hose before storage.
• Periodically change oil in pumps.

Pre Operation Checklist

• Check for adequate water supply. Use no smaller than 5/8” garden hose for supply to pump
• Make sure water inlet filter is clean.
• Check ground fault interrupter on electric models. Test and reset.
• Check oil level in pump
• Check hose for wear or kinks
• Check hose reel and all connections
• Select nozzle and make sure orifices are not blocked or worn to excess
• Wear proper clothing gloves and eye protection, rubber sole boots

Operation Instructions

1. Attach garden hose (minimum of 5/8” diameter) to water faucet. Run water through the hose into an open drain or bucket to flush debris out of faucet and hose before connecting to pump. Shut water off again when water runs clear.
2. Attach other end (male end) of garden hose to water inlet valve at pump.
3. M20 Hose on reel is ready to go. If using smaller trap hose, disconnect jumper hose at the pump, and connect the 1/8” jetter hose to the coupling M20T Connect jetter hose to pump at the coupling
4. Attach nozzle to end of hose. Finger tighten, do not over tighten.
5. Mark the hose approximately 15 feet back from nozzle with electrical tape. Use this tape as a marker to shut off machine before retrieving all the line out of the drain pipe.
6. Open water intake.
7. Open water faucet again to prime pump. An equal amount of water should pass through the orifices of the nozzle.
8. Push jetter hose into drain up to the marker when possible (minimally several feet).
9. Always insert hose and nozzle into pipe opening and hold onto hose before turning the machine on.
10. Make sure power cord is plugged into a properly grounded 110 volt receptacle.
11. Start Motor/Engine by flipping switch into the “on” position.
12. Adjust pressure with pressure regulator knob, turning right to increase pressure, left to decrease.
13. Start jetting, using pulsation only if needed to promote forward motion of nozzle and hose.
14. During Operation

• Tight bends and certain blockages are often more easily negotiated by rotating or twisting jetter hose at drain opening. Once you are through that area, pull back and pass through several times to ensure cleaning. After the blockage(s) has been opened, pull hose back very slowly to provide maximum cleaning to wall of pipe.
• When operating from the high end to low end (most common) shut off the water flow ball valve on the reel occasionally. This will allow debris to get ahead of the nozzle and flush it down the pipe.
• Grease and Ice Blockages Warm water is effective in cleaning grease and ice blockages. A cold-hot mix from the tap is adequate. However, do not exceed 140° Fahrenheit. Hotter water can damage seals in the pump.

Shutting Down

1. When completing pass through drain, watch for tape marker on hose as you pull the hose out.
2. Reduce pressure gradually with pressure unloader knob until pressure gauge is at zero.
3. Stop the jetter motor/engine
   • Move switch to “off” position
   • Unplug power cord from receptacle
4. Continue to run water through pump and hose for 30 to 60 seconds.
5. Close water faucet and disconnect garden hose from spigot.
6. Close water inlet valve. Disconnect garden hose from jetter.
7. Pull remaining jetter hose from drain line.
8. Remove nozzle if you choose.
9. Store jetter hose properly on reel or in a coil to avoid damage to hose.

Troubleshooting

pressure

No Water flow

| Kinked or collapsed garden hose| Remove kink or replace worn hose
Water supply not turned on| Turn water supply on
Clogged nozzle| Remove nozzle & clean orifices
Intake or reel valve primed| Make sure valves are open
Inconsistent and/or erratic pressure| Sucking air on inlet side of pump| Make sure connections are tight
Partial blockage in inlet hose or filter| Remove blockage
Pump not properly primed| Disconnect hose at outlet & run until pump is properly primed
Electric motor trips circuit breaker OR electric motor overheats| Extension cord is too small| Replace with heavy duty extension cord
Pressure regulator at full pressure| Reduce pressure with pressure regulator
Other electrical devices already drawing current on circuit| Either temporarily disconnect other electric devices or find new circuit
Inadequate electric fuse or breaker| Recommended 20 amp breaker/fuse
Exceeding maximum recommended pressure| Reduce pressure at regulator
Clogged nozzle| Clean or replace nozzle

Electric motor won’t start

| No power at outlet| Tripped circuit breaker. Reset breaker
GFI on power cord is tripped| Reset GFI
Motor overload button is tripped| Reset overload button
Water leaking from under pump manifold| Worn packing (seals) Ice damage|

Install new packing (seals)

Oil leaking from underside of crankcase|

Worn piston rod seals

|

Replace seals

Water in crankcase Oil will take on a cream color or look cloudy if

mixed with water

| Humid air condensing into water in crankcase| Change oil – see oil recommendations on back page.
Worn packing and/or piston rod sleeve. O-ring on plunger retainer worn| Replace packing. Replace O-rings
Oil leaking at rear portion of the crankcase| Damaged crankcase; rear cover O-ring’ drain- plug or sight glass O-ring| Replace cover O-ring, drain plug O-ring or sight glass O-ring

Frequent or premature failure of the packing (seals)

| Scored, damaged or worn plunger| Replace plungers
Excessive pressure to inlet manifold| Reduce inlet pressure
Abrasive material in fluid passing through pump| Properly filter fluid being pumped. Use clean hoses & fittings
Excessive temperature of fluid being pumped| Do not exceed 140 degrees
Running pump dry| NEVER run pump dry!

Care and Maintenance

• Regular inspection and maintenance are key to preventing breakdowns and prolonging the life of the equipment.
• Keep machine clean and dry to maximize performance and longevity.
• See back page for maintenance schedule.
• Never let pump run dry!! Pump cavitation can occur in only a few seconds of running dry.
• Avoid running anything abrasive through pump Abrasive materials will damage pump components, resulting in total malfunction or minimally, loss of pressure capability.
• Be careful with jetter hose against sharp edges Sharp edges can scrape, slice and generally damage hose quickly. While hose is easily replaced, it pays to take care by buffering sharp edges with tape, cardboard, etc., to maximize its useful life. MyTana has a TigerTail that helps protect your hose, available at MyTana.com.
• Do not use pulse valve more than necessary
• Never run pump if there is ice in pump or outlet hose

Antifreeze Procedure

• If you know there will be a period of 2-3 days when the jetter will be idle OR if the jetter is stored in potentially freezing weather, make sure to run antifreeze into pump and hose as part of your shut down procedure. This helps with lubrication and prevents o-rings from drying out.
• Insert a short length of garden hose into a gallon of antifreeze, turn on pump and run until you see antifreeze coming out of the nozzle end of the hose. At next use of jetter, you can recover most of that antifreeze when you hook up to your water source. Antifreeze can be used multiple times. However if it gets too diluted (more than 50% water) or if there is any discoloration, discard that antifreeze and replace with new.
• We recommend using RV antifreeze.

Maintenance Schedule Follow this maintenance schedule to maximize the life of your jetting equipment.
SHUT OFF AND UNPLUG THE MOTOR BEFORE ATTEMPTING ANY REPAIRS OR MAINTENANCE.

Inspect and check for Frequency

Service item: Frequency

Pump Crankcase Oil Change| 1st month or 25 hours for “break in”

Then every year or 500 hours

If water gets into oil, change immediately oil will take on a cream color or look cloudy if mixed with water

---|---
Recommended oil:

•        Primary – General Pump (GP) Brand

•        Secondary – SAE 30W, non-detergent

Add antifreeze to hose and pump (see procedure on previous page)| Stored in potentially freezing temps

If jetter will be unused for 2-3 days

• Recommended: RV antifreeze.

• Keep machine clean and dry to maximize performance and longevity.

• 800) 328-8170

• MyTana.com

• EMAILmytana@mytana.com youtube.com/videoMyTana
  

• M–F | 7a to 5p CST
  

• MYTANA LLC 746 SELBY AVE

• ST. PAUL, MN 55104

• 800-328-8170
  

• Factory Direct Customer Service
  

• M –F 7 am – 5 pm CST
  

• Competent

• Polite

• Clear

• www.MyTana.com

• 746 Selby Ave

• St. Paul, MN 55104

• fax:651-222-1739

References

• Sewer and drain cleaning equipment, parts and tools - MyTana LLC
• Jetter Parts Archives - MyTana LLC

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