MyTana M745 User manual

Manufacturers of Quality
Sewer & Drain Cleaning
Equipment since 1957
1.800.328.8170
Factory Direct Customer Service
M –F 7am – 5pm CST
Competent • Polite • Clear
www.MyTana.com
746 Selby Ave • St. Paul MN, 55104
fax: [phone]
- IMPORTANT ! -
THIS MACHINE IS NOT
TO BE OPERATED BY
ANYONE UNTIL HAVING
CAREFULLY READ THIS
INSTRUCTION MANUAL
ON ITS USE.
IF ANYONE ELSE THAN
THE ORIGINAL BUYER
OF OUR EQUIPMENT IS
TO USE THE MACHINE,
THEN HE/SHE IS TO BE
FURNISHED WITH AN
INSTRUCTION MANUAL.
To request new or additional
instruction manuals please
call us or download a copy
at MyTana.com
Inspect your system carefully upon receipt.
Let us know right away of any damage you note.
M745 User Manual
061119

PG 2 MYTANA M745 USER MANUAL
Revolving arm
Cable IN Reel Unit
Retractable
loading wheel
Telescoping
handle
release bar
Stair
rollers
Autofeed
Retriever
Drive
shaft
Autofeed
bracket
Air-actuated
foot pedal
GFCI Circuit
(not visible)
SmartDrive
Panel
Power
Receptacle
Motor
housing
Pneumatic
Tires
Inner
Drum
Identifying Parts
Also included with your purchase are:
MyTana Part# is also listed to help with replacements
2 ea (one mounted, one loose) of these four blades:
• 4" PearShaped blade PS4
• 3" PearShaped blade PS3
• Double 2⁄" - serrated edges KN20T, KN19T
• Single 2" - serrated edges KN4P, KN5P
3" Pig tail retriever LE148
2 Slip-joint cable ttings with set screws SJ3
3 Splicing Cores SP30
3ft Cable leader LE147
Gloves
Quart bottle of MT21
5/32”T-handle hex key tool
Allen wrench
SmartDrive Panel
You’ll dial in your RPM and make torque
selections on the SmartDrive panel.
See page 4 -5.
Practice with the speed and
torque selections on the SmartDrive
panel BEFORE you go on a job
so you are comfortable using
the panel as you work.
To Adjust the Handles
Lift up the handle release bar to raise or lower
the telescoping handles. They will lock in to
position either fully up or fully retracted.
If you ordered the optional Sinkline Kit, there will be more items. Please refer to the sheet that was included.

PG 3 MYTANA M745 USER MANUAL
To remove a reel
1 Loosen the knob
on the bottom of the
Autofeed.
2 Carefully slide
the Autofeed o it’s
bracket and o the
cable
3 Pull out the
Inner Drum and the
Revolving Arm at the
same time.
4 Pull the cable out
of the Revolving Arm
and feed it completely
back in to the reel
uTAKE CARE to
not let the cable
spring out of the
reel
5 Slide the reel o
the drive pins.
3 Fit the cable into
the groove on the
Inner Drum.
6 Insert the cable through
the automatic feed
1 Line the drive pins up
with the grooves on the
reel. Slide the reel all the
way in to bumper
4 Slide the Inner Drum
into the reel keeping
the Rev Arm free and
cable in the groove.
7 Slide the Autofeed on to it’s
bracket and tighten the knob on
the bottom side.
2 Feed cable through the Revolving
Arm tube. Fittings between the leader
and main cable may need an extra
push. TAKE CARE to not let the cable
spring out of the reel
5 Fit the Rev Arm
in to the Inner Drum
To load a reel
Assembly
The M745 should arrive completely assembled. Due to shipping constraints, if your reel arrives not mounted, refer the
steps about loading the reel, below right.
– Changing Reels
Follow the steps below to change reels on the M745.

PG 4 MYTANA M745 USER MANUAL
Getting Started
– Placement
Place the machine about 2-3 feet from the opening in the pipe.
An experienced operator may nd it more comfortable to vary
the distance, but only slightly. 
– Attach Blade
Any of the single-unit blades may be used, and it is best to use a blade
much smaller than the inside diameter of the pipe to begin the job.
Attach the blade securely to the front of the cable, otherwise the blade
could slip on the front of the cable.
– Feed cable and blade
in to the line
Remove the clean-out plug, disen-
gage Autofeed (by loosening screw
knob on top cylinder) and insert the
cable, with blade attached, into the pipe by hand with a twisting motion.
When you have passed the bend, continue to rotate and push the blade
about 5-6 ft into the pipe, making sure it is not caught or bound so
that it can rotate freely.
uNEVER HAVE A SPINNING BLADE OUTSIDE THE CLEANOUT!
Position the foot pedal so you can both hold the cable and adjust the dial on
the SmartDrive panel while operating the pedal with your foot. 
– Plug in the machine
When you plug in the machine, the SmartDrive screen will
ash MyTana’s phone number, then this screen.
On the SmartDrive Panel
Select your Tension Release
choice: slow (
>) or fast ( >>> )
The Drum switch should
be in the forward ( F
<< )
position, even when
retrieving the cable
out of a line.
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
PU 32
Torque is High
Stopped 150 RPM
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
CDC 0
User Program Mode
New Speed 175 RPM
Torque Level High
Torque Level Low
OK
Torque Level Low
ALL OPERATORS
Read all instructions on these pages BEFORE operating equipment.
You will be able to
select your torque
and dial in the
speed using the
knob AFTER the
reel is rotating.
See next page.
2' - 3'
ALWAYS HAVE BLADE 5 OR 6 FT
INTO PIPE AND FREELY MOVING
BEFORE YOU START MOTOR
CDC is “Cool Down Count”. Should your motor overheat,
the rotation will stop, and this will count down to when it
is safe to start up again. This will rarely be an issue.

PG 5 MYTANA M745 USER MANUAL
Operation
Start the reel rotation by pressing your foot on the foot pedal.
The rst start up will spin at the factory default saettings.
The next start ups will use the speed/torque settings that
were in place at the last shut down.
– SmartDrive Selections
Once the reel is spinning, this screen will show. PU is number
of PowerUps the machine has had.
To change the speed / rpm
• Rotate the knob to INCREASE or DECREASE the speed in 25rpm increments
– or –
• Push the knob to INCREASE the speed in 25rpm increments
Note: Once the speed indicates 300 rpm, it will roll over to a
new cycle starting at 100 rpm
When you stop the machine, SmartDrive will remember the last speed used,
and the next start up will be at that rpm.
Select Torque
Stop the reel rotation to change the torque setting.
• Push the speed knob in for 1-2 seconds to enter User Program Mode
The next screens will appear with text toggling between
“High” and “Low”
The torque setting will provide the audio alerts as torque builds
in the cable. This will allow you to work your way through an
obstruction, but the rotation will stop if the torque gets too high.
• Press the panel knob for a second or two once your torque
preference is showing – the display will show the level and “OK”
We suggest selecting High for 9/16” cable, Low for 3/8” cable
Pressing the front knob while the system is idle will allow the
user to enter a new speed. This new speed will be the default
powerup speed.
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
PU 32
Torque is High
Stopped 150 RPM
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
CDC 0
User Program Mode
New Speed 175 RPM
Torque Level High
Torque Level Low
OK
Torque Level Low
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
PU 32
Torque is High
Stopped 150 RPM
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
CDC 0
User Program Mode
New Speed 175 RPM
Torque Level High
Torque Level Low
OK
Torque Level Low
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
PU 32
Torque is High
Stopped 150 RPM
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
CDC 0
User Program Mode
New Speed 175 RPM
Torque Level High
Torque Level Low
OK
Torque Level Low
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
PU 32
Torque is High
Stopped 150 RPM
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
CDC 0
User Program Mode
New Speed 175 RPM
Torque Level High
Torque Level Low
OK
Torque Level Low
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
PU 32
Torque is High
Stopped 150 RPM
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
CDC 0
User Program Mode
New Speed 175 RPM
Torque Level High
Torque Level Low
OK
Torque Level Low
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
PU 32
Torque is High
Stopped 150 RPM
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
PU 22
Torque is High
Running 150 RPM
MYTANA
CDC 0
User Program Mode
New Speed 175 RPM
Torque Level High
Torque Level Low
OK
Torque Level Low
uBEFORE STARTING your
rst job, read the paragraph
on “Building up Torque” (pg 7)
uUNPLUG THE MACHINE
WHEN NOT IN USE –
Never walk away from the
machine when it is running
uSAFETY Operators should wear heavy-duty
gloves when operating this machine. Tuck in
any loose clothing and tie up long hair.
Protective eyewear is recommended.

PG 6 MYTANA M745 USER MANUAL
Cleaning
As you operate the machine, place one hand on the cable close
to the cleanout and one hand on the Autofeed to prevent any
throwing of the cable.
Engage the Autofeed to feed the cable in to the line. Move the
feed lever about 10 degrees toward the“F” and turn on your
machine. Turn the screw knob on the top cylinder to the right
until the cable starts to move forward. Do not tighten the knob
more than is required to move the cable forward. Push lever
fully into the forward position.
– Obstructions
When you hit obstructions or debris, the SmartDrive will beep
indicating torque is building.
When the operator has had sucient experience, his“touch”and learning the audio signals will tell him the extent
of tension to allow to build in the cable before pulling back from the obstruction; however, inexperienced opera-
tors should be cautious and allow the cable only about 5 seconds to cut through.
If the blade doesn’t release after a few seconds, move the Autofeed lever to the“R”(reverse) position, pull it away
from the obstruction and try again. The freed blades spin rapidly when torque is released. Use this combined force
of the reel rotation and cable torque/spinning blade to optimize your cutting power. This action will be more eec-
tive and will shorten the length of time on the job.
The audio alerts will help you avoid over-torquing the cable to the point of damaging the cable or blade, or causing
injury to yourself. BE AWARE!
• If the cable doesn’t pull back, see next section on “Diculties”
• If you need to increase or decrease your speed follow SmartDrive instructions on previous page
Continue working through obstructions in this way until you have reached the end of the pipe.
After the rst opening is made, turn on the nearest faucet so that water will ush the loosened debris. Be sure the
water is draining and doesn’t back up to the cleanout.
– Finishing up
When the obstruction is removed, place the Autofeed-Retriever fully in the“R” position until you hear the blade
nearing the pipe opening. Disengage feed (by turning screw knob to the left).
DO NOT use the R position on the SmartDrive panel to rewind the cable.
SHUT OFF THE MOTOR and pull the blade out of the pipe opening stacking the cable snugly against the outer
diameter of the reel.
Follow the rst opening with slightly larger blades until you can use a blade large enough to scrape the sidewalls of
the pipe or sewer. Increasing the speed of the M745 will enhance this scraping action.
 IMPORTANT! NEVER LEAVE MOTOR RUNNING UNATTENDED

PG 7 MYTANA M745 USER MANUAL
Difficulties
If the cable resists going forward or backward than one of
several things is occurring:
• You are stuck in an obstruction (see below)
• However, if torque does not start to build, you may be at an
elbow or the blade may be hitting an oset or break in the line.
Apply some forward pressure manually to help you gure out
what it happening.
• The feed wheels are worn and need replacing
• There is debris hanging onto the end of cable and blade that is
resisting retrieval. In this case manually help the Autofeed pull
the cable back into the reel, clear blade of debris and run cable
through line again to make sure all blockages are removed
If at any time the cutting blades become stuck and cannot be
released, and the torque has reached it’s limit according to the
setting you selected, SmartDrive will stop the reel rotation.
Hold cable close to the Autofeed to prevent the cable from
coming out of the reel.
The automatic Tension Release will spin the reel backwards,
removing the strain on the cable. After the reel stops, spin it
backwards a few more turns. This may release the obstructions
that can be wrapped around the cutting blades.
When the cable is released, pull the cable out of the pipe, clean
o any obstruction accumulated on the blades or cable, and
insert it into the sewer again, still using the smaller blades.
User Tips
Using the Autofeed-Retriever
Turn top knob only as far as needed to move cable back or forth – avoid turning down the screw knob on top
cylinder of feed too tightly:
• It impedes the proper rotation of the cable through the auto feed
• It causes excessive wear on cable and bearings
• On retrieval, it causes the cable to stack loosely into the reel, rather than snugly
against the outer walls as it should
• It can break the feed bearings
Do not run cable ttings (i.e. couplings, splicers, cable ends) through a tightened down auto feed. Again, this can
break feed wheels. Release the feed, pull ttings through manually and then re-engage.
Foot Pedal
The foot pedal and hose may need to be replaced from time to time (parts are available, call us or visit MyTana.
com). Loosen the pressure nut on the end of the hose and pull out to remove foot pedal
unit from the pneumatic switch.
To help increase the longevity of your pedal/hose place your foot on pedal directly
opposite the hose tting.
NEVER LET THIS HAPPEN
Building up Torque
As the reel revolves, it generates power and
stores up energy in the cable, which when
released, allows the blade to travel at a
much higher rate of speed.
When the revolving blade comes in contact
with an obstruction and it cannot cut
through within about 5 seconds, or at all,
the cable naturally continues to wind up
with the rotation of the reel. This wind up
builds up torque, or tension, which acts as a
powerful spring motor. If too much tension
is allowed in the cable, it will lash in the
operator’s hands or can whip widely and
dangerously out of control (see below). The
torque build up is an extremely powerful
force and the operator must always be
warned of it’s potential danger.
Hose
tting

1.800.328.8170
fax: [phone] www.MyTana.com
746 Selby Ave
St. Paul MN, 55104
PG 8 MYTANA M745 USER MANUAL
Maintenance
Occasionally remove the reel and lubricate the main drive shaft.
Cable care
If you are not using your machine every day, treating your
cable with a cleaner / rust inhibitor will extend cable life
dramatically. Our MT21 is a water based treatment called
that also deodorizes.
You can also hose down the cable (remove reel from machine to do this).
Remove the red drain plug on the back of the reel, and lay at so water
can drain out of the reel. Spray the cable with WD40 or any light oil.
Make sure that the cable stacks to the outermost part of the reel when returning
cable to the reel. This helps prevent kinking or twisting inside the reel.
If a cable becomes kinked or wavy due to fatigue or over-stress, either repair the cable with splicing cores, or
replace the cable.
Autofeed
It is essential to keep clean and properly lubricated.
• The feed unit has been greased at the factory. However, routinely continue to grease all
housing equipped with zerks (grease ttings).
• Remove front disc periodically, clean and lubricate. Free movement of the front disc is crucial
to proper movement of cylinders and drive wheels.
• If feed will not used for a period of time, lubricate before storage.
Watch for wear on drive wheels (bearings) and drive pins.
Make sure drive pins stay in designated slots on movement disc.
Remove debris (i.e. rags, string, hair) from cable before running through the feed. This kind of debris
can clog up the feed wheels and movement parts rather quickly.
Replacing the Drive Wheels (Drive Bearings)
• Remove auto feed from machine
• Remove six acorn nuts and lockwashers
• Remove front disc and movement assembly
• Slip cylinder housing (whichever one that needs new drive wheel) from hex bolts
• Remove piston from housing (it will lift out of housing)
• Remove clip spring that holds drive pin
• Carefully pull out drive pin
• Remove spacers and drive wheels
• Clean all parts in cleaning solvent before reversing procedure to install new drive wheel(s)
NOTE: While installing new drive wheels, take the time to clean up cylinder housing. There are thrust bearing
(and two races) at the bottom of each cylinder that need to be cleaned periodically. These parts can be accessed
by removing the spacer plates and end cap at the bottom of the housing.