Mi-T-M AW-7020-8001 Use and care manual

Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998 1
PROFESSIONAL
28 INCH ROTARY SURFACE
CLEANER
aw-7020-8001
OPERATING INSTRUCTIONS
AND PARTS LIST
CAUTION
RISK OF INJURY! READ MANUAL BEFORE OPERATING!
THIS MANUAL IS AN IMPORTANT PART OF THE CLEANER AND MUST
REMAIN WITH THIS UNIT WHEN YOU SELL OR RENT IT!
©COPYRIGHT 1998, MI-T-M CORPORATION®Form #37-0519-100198

2 Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998
TABLE OF CONTENTS
INTRODUCTION.................................................................................... 3
SPECIFICATIONS ................................................................................. 4
IMPORTANT SAFETY WARNINGS .....................................................5-7
RISK OF INJECTION OR SERVERE CUTTING INJURY .............. 5
RISK OF BURNS ........................................................................... 6
RISK OF BODILY INJURY ..................................................... .....6-7
FEATURES ............................................................................................ 8
INSTALLATION & PREPARATION ...................................................... 9
NOZZLE SELECTION & INSTALLATION ....................................... 9
UNIT ASSEMBLY ............................................................................ 9
SET-UP ........................................................................................... 9
SURFACE PREPARATION ............................................................. 9
PRE-START INSPECTION PROCEDURES................................... 9
OPERATION ......................................................................................... 10
START-UP............................................................................... ......10
SHUT-DOWN .......................................................................... ......10
TROUBLESHOOTING.......................................................................... 11
PARTS LISTING ..............................................................................12-17
NOTES.................................................................................................. 18
WARRANTY.......................................................................................... 19

Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998 3
! IMPORTANT !
These paragraphs are surrounded by a "SAFETY ALERT BOX". This
box is used to designate and emphasize Safety Warnings that must be
followed when operating this Rotary Surface Cleaner. Accompanying
the safety warnings are "signal words" which designate the degree or
level of hazard seriousness. The "signal words" used in this manual
are as follows:
DANGER: Indicates an imminently hazardous situation which, if
not avoided, WILL result in death or serious injury.
WARNING: Indicates a potentially hazardous situation which, if not
avoided, COULD result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not
avoided MAY result in minor or moderate injury.
The symbols set to the left of this paragraph are "Safety Alert Symbols".
These symbols are used to call attention to items or procedures that
could be dangerous to you or other persons using this equipment.
ALWAYS PROVIDE A COPY OF THIS MANUAL TO ANYONE USING THIS
EQUIPMENT. READ ALL INSTRUCTIONS IN THIS MANUAL AND ANY
INSTRUCTIONS SUPPLIED BY MANUFACTURERS OF SUPPORTING
EQUIPMENT BEFORE OPERATING THIS UNIT AND ESPECIALLY POINT
OUT THE "SAFETY WARNINGS" TO PREVENT THE POSSIBILITY OF
PERSONAL INJURY TO THE OPERATOR.
Unbox the unit and inspect for signs of obvious or concealed freight damage. Be sure that all
damaged parts are replaced and the mechanical problems are corrected prior to the operation of
the cleaner. Write in the serial number in the space provided below.
SERIAL NUMBER_________________________________
If you have questions, contact your Mi-T-M®Customer Service Representative at 800-553-
9053.
Please have the following information available for all service calls:
1. Model Number
2. Serial Number
3. Date and Place of Purchase
Mi-T-M®Corporation, 8650 Enterprise Drive, Peosta, IA 52068-0050 USA
INTRODUCTION
Congratulations on the purchase of your new Mi-T-M Rotary Surface Cleaner! You can be assured
this Cleaner was constructed and designed with quality and performance in mind. Each component
has been rigorously tested to ensure the highest level of acceptance.
Your Rotary Surface Cleaner is equipped with a heavy duty high pressure swivel with the versatility
of using this Cleaner in both Cold and Hot water applications. Simply connect the Rotary Surface
Cleaner to your Mi-T-M Pressure Washer, pull the trigger and walk behind for fast and efcient
cleaning!
This manual was compiled for your benet. The contents of this manual are based on the latest
product information available at the time of publication. Mi-T-M reserves the right to make changes
in price, color, material, equipment, specications or models at any time without notice.

4 Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998
Operating Pressure (PSI/ BAR) 2000-4000/ 138-276
Water Volume (GPM/ IPM) 3.0-10.0/ 11.36- 37.85
Maximum Temperature (°F/ °C) 212°/ 100°
Maximum RPM 2500
Unit Net Weight (lbs./ Kg) 46/ 20.87
Unit Net Dimensions (IN/ CM) L44.00 x W28.00 x H38.00/
L111.1 x W71.76 x H96.5
Unit Shipping Weight (Ibs./ Kg) 52/23.59
Unit Shipping Dimensions (IN/ CM) L42 x W29 x H11.5/
L106.68 x W73.66 x H29.21
SPECIFICATIONS

Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998 5
HAZARD
RISK OF INJECTION
OR SEVERE CUTTING
INJURY
PREVENTION
Serious injury or death could
occur from high pressure
spray penetrating the skin.
Keep clear of nozzle and spray! Never
put your hand, ngers or body directly
over the spray nozzle.
Never point the high pressure
discharge spray at yourself or anyone
else.
This product is to be used only by
trained operators.
Always keep operating area clear of all
persons.
DO NOT allow children to operate this
unit.
If an accident does occur, and the
spray appears to have penetrated the
skin, SEEK EMERGENCY MEDICAL
CARE. DO NOT TREAT AS A SIMPLE
CUT! Be prepared to tell a physician
exactly what kind of cleaning agents
you were using by reading the
Detergent Label and the Material
Safety Data Sheet (MSDS) provided
with your detergent.
High pressure hoses should be
inspected daily for signs of wear. If
evidence of failure exists, promptly
replace all suspect hoses to prevent
the possibility of injury from the high
pressure spray. If a hose or tting is
leaking, NEVER PLACE YOUR HAND
DIRECTLY ON THE LEAK.
Before using rotary surface cleaner, or
when quick connecting high pressure
hoses, be certain the "collar" on
the female quick connect is locked
securely to prevent accidental
discharge and that all quick coupler
ttings are secure.
NEVER operate the gun with the
trigger wired in the open position. To
prevent accidental discharge, the
trigger gun should be securely locked
when not in use.
Before removing the spray nozzle or
servicing the unit, ALWAYS shut off
the unit and trigger the gun to release
trapped pressure. (Even after you
shut off the unit, there is high pressure
water left in the unit until you release it
by triggering the gun.) Allow the unit to
cool down and service in a clean, dry,
at area.
Do not make repairs or
adjustments while unit is
running.
When using this product, basic precautions should always be observed, including the following:
READ ALL SAFETY WARNINGS BEFORE USING ROTARY SURFACE CLEANER
SAFETY WARNINGS
POTENTIAL
CONSEQUENCE

6 Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998
SAFETY WARNINGS
READ ALL SAFETY WARNINGS BEFORE USING ROTARY SURFACE CLEANER
Serious injury may occur
from touching Hot Surfaces.
HAZARD POTENTIAL
CONSEQUENCE PREVENTION
RISK OF BURNS The Rotary Surface Cleaner is capable
of accepting a maximum of 212°F. When
using in a hot water application, do
not touch or direct discharge stream at
persons. Be cautious of hose ttings as
surface temperatures are the same as
the water temperature.
RISK OF BODILY
INJURY
SEEK EMERGENCY MEDICAL CARE
if the spray appears to have penetrated
the skin! DO NOT TREAT AS A SIMPLE
CUT! Be prepared to tell a physician
exactly what kind of cleaning agents you
were using by reading the Material Safety
Data Sheet (MSDS) provided with your
detergent.
Never use any solvents or highly
corrosive detergents or acid type
cleaners with this rotary surface cleaner.
Protective equipment such as rubber
suits, gloves and respirators are
advisable, especially when using
cleaning detergents.
Keep all detergents out of the reach of
children!
ALWAYS wear protective goggles when
operating the unit to shield the eyes from
ying debris and detergents.
DO NOT direct spray toward fragile
materials such as glass for shattering
could occur.
Stay alert-watch what you are doing. Do
not operate the unit when fatigued or
under the inuence of alcohol or drugs.
NEVER squeeze the trigger unless
securely braced.
DO NOT overreach or stand on unstable
support.
Wet surfaces can be slippery, wear
protective foot gear and keep good
footing and balance at all times.
Serious injury or death
may occur from detergents
contacting or penetrating
the skin.
Serious injury can occur
from loose debris being
propelled at a high speed
from the spray gun.
Injury may occur if the
operator loses his balance
caused by the thrust of
water traveling through the
spray nozzle.

Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998 7
POTENTIAL
CONSEQUENCE
PREVENTION
!SAVE THESE INSTRUCTIONS!
HAZARD
RISK OF BODILY
INJURY
ALWAYS hold on rmly to the handles
of the Rotary Surface Cleaner when
operating the unit. Failure to do
so can cause the Cleaner to move
dangerously. To prevent accidental
discharge, the trigger gun should be
securely locked when not in use.
Always wear eye and ear protection
when using the Rotary Surface
Cleaner. Other protective clothing
such as a rubber suit, gloves,
respirator, etc., may be necessary
when using detergents.
Never make adjustments on the
machine while in operation.
DO NOT leave pressurized unit
unattended. Shut off the pressure
washer and release trapped pressure
before leaving.
Know how to stop the Rotary Surface
Cleaner. Be thoroughly familiar with
controls.
Injury may occur from the
rotary surface cleaner.
SAFETY WARNINGS
READ ALL SAFETY WARNINGS BEFORE USING ROTARY SURFACE CLEANER

8 Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998
FEATURES
0MGEN305-112197-DCE
1. Box.
2. Insert.
3. Insert.
4. Insert.
5. Cover Assembly.
6. Handle.
7. Bolt.

Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998 9
NOZZLE SELECTION & INSTALLATION:
1. Your Rotary Surface Cleaner will come installed with one set of 2502.5 nozzles.
a. The minimum orice size to be used in your Rotary Surface Cleaner is half that which
is being used in your pressure washer. Example: If your pressure washer uses a size
5 orice, you will need to use a size 2.5 orice in your Rotary Surface Cleaner. (Two
nozzles are inserted in the Rotary Surface Cleaner, therefore; two nozzles x size 2.5
orice = size 5 orice.)
b. The nozzles being used should have a 15°-25° spray pattern; anything less than a 15°
spray pattern can damage the area being cleaned. Anything more than 25° may not
allow the bar to rotate.
2. Nozzles should be screwed into the rotating bar. The spray fan should be parallel to the
Rotating Bar. (See gure at right.)
UNIT ASSEMBLY:
1. Line up the holes on the lower part of handle (6) with the holes on the cover assembly (5).
2. Insert the bolt (7) through the handle and cover holes and tighten securely.
3. Quick connect the Rotary Surface Cleaner hose assembly to the swivel located on the unit
base.
SET-UP:
1. Locate the high pressure discharge hose on your pressure washer and ensure it is securely
connected to the water outlet of the pressure washer. Quick connect the other end of the high
pressure discharge hose to the gun on the Rotary Surface Cleaner.
2. Connect the water supply hose, one end to your pressure washer, the other end to a
pressurized water supply.
SURFACE PREPARATION:
1. Clear any loose debris from the area to be cleaned.
2. Never attempt to clean surface with objects that protrude from the surface being cleaned.
Striking any raised obstacle during operation will damage machine. If contact does occur
and results in vibration when operating machine, STOP and replace spray bar.
PRE-START INSPECTION PROCEDURES:
1. Inspect Rotary Surface Cleaner before each use. Tighten rotating bar, bolts and ttings as
needed.
2. Ensure all connections are secure. Turn the water supply completely "ON". (DO NOT
START PRESSURE WASHER!)
3. Inspect hoses for kinking, cut or leaks. If found, DO NOT USE HOSE! Replace damaged
hoses before starting.
4. Unlock the trigger gun and squeeze the trigger. Water will begin owing from the nozzles
of the Surface Cleaner. Ensure nozzles are not clogged and spray pattern is not erratic.
Change nozzles before proceeding if problems exist.
5. Be sure that all damaged parts are replaced and that the mechanical problems are
corrected prior to operation. If you need service, contact a Mi-T-M Authorized Service
Center.
END OF PREPARATION INSTRUCTIONS
INSTALLATION & PREPARATION
CAUTION
Risk of Injury or damage to machine!!
NEVER OPERATE THE UNIT IF IT BEGINS TO VIBRATE!
Shutdown the unit and tighten the rotating bar, bolts and ttings.
1/4 MEG
2503
Nozzle
Spray Pattern
(Parallel to Bar)
Rotating Bar

10 Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998
OPERATION
START-UP:
1. Lock the trigger gun on the Rotary Surface Cleaner in the "OFF" position (move the lever
on the gun handle to a 90° angle so it rests against the handle grip).
2. Ensure all connections are secure.
3. Unlock the trigger gun and squeeze the trigger while starting the Pressure Washer.
4. Water will begin owing from the nozzles of the Surface Cleaner. Ensure nozzles are not
clogged and spray pattern is not erratic. Turn the pressure washer and water supply off
and change nozzles before proceeding if problems exist.
5. Walk slowly behind the unit, cleaning as you go. If striping occurs, slow down the pace. Do
not allow machine to remain stationary on soft surfaces such as wood.
6. Check "weep holes" on top of the swivel periodically. Water will seep slowly. If it shoots out,
shut-down the unit and replace seals and/or main seal.
SHUT-DOWN:
1. Turn the Pressure Washer off.
2. Turn the water supply off.
3. Squeeze the trigger gun to relieve water pressure.
4. Disconnect and drain the water hose and wipe down unit. Store unit in a non-freezing
environment.
WARNING
THE FOLLOWING CONTAINS OPERATING AND MAINTENANCE
INSTRUCTIONS.
DO NOT ATTEMPT TO OPERATE THIS ROTARY SURFACE
CLEANER UNTIL YOU HAVE READ AND UNDERSTOOD ALL
SAFETY WARNING AND INSTRUCTIONS LISTED IN THIS MANUAL.
INCORRECT OPERATION OF THIS UNIT CAN CAUSE SERIOUS
INJURY!!
DO NOT ALTER OR MODIFY THIS EQUIPMENT IN ANY MANNER!
CAUTION
Risk of Injury or damage to machine!!
NEVER OPERATE THE UNIT IF IT BEGINS TO VIBRATE!
Shutdown the unit and tighten the rotating bar, bolts and ttings.

Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998 11
TROUBLESHOOTING
PROBLEM PROBABLE CAUSE REMEDY
Inadequate cleaning power. Not enough PSI from Ensure unit produces a minimum
pressure washer. 2000 PSI. Most effective cleaning
range is 2500-4000 PSI.
Inadequate water supply. Turn water supply completely "ON"
and/ or clean water lter on
pressure washer. Ensure unit
produces a minimum of 3.0 GPM.
Engine RPM on pressure Increase throttle.
washer is too low.
Nozzle obstructed or worn. Clean or replace as necessary.
Incorrect nozzle orice size. Insert correct nozzle.
Rotating bar will not rotate. Seal has drag. Allow for break-in period.
Snap ring dislodged. Do not use! Contact Mi-T-M
Customer Service.
Seal malfunction. Do not use! Contact Mi-T-M
Customer Service.
Bearing failure. Do not use! Contact Mi-T-M
Customer Service.
Excessive vibration of Nozzle clogged. Clean or replace.
Surface Cleaner OR
Cleaner base is creating a Rotating bar, bolts or ttings Tighten.
suction to the surface. loose.
Rotating bar or swivel rotor Replace.
bent.
Streaked cleaning pattern. Insufcient water supply OR Increase water supply OR ensure
PSI of pressure washer is pressure is a minimum of 2000 PSI
too low. (Won't allow and a minimum of 3.0 GPM.
Rotating Bar to move.)
Nozzle clogged. Clean or replace.
Cleaning too fast. Slow down pace.
Water weeping from swivel. Small amount of seepage is No modication is necessary.
normal.
Water shooting from swivel. Seal malfunction. Replace.
CONTACT
Mi-T-M CUSTOMER SERVICE: 800-553-9053
Monday - Friday 7:30 a.m. - 5:30 p.m. CST

12 Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998
28 INCH ROTARY SURFACE CLEANER AW-7020-8001
0MGEN287-080598-DCE

Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998 13
OMGEN287-080598-DCE
28 INCH ROTARY SURFACE CLEANER (AW-7020-8001)
REF. # DESCRIPTION PART # QTY.
1 Screw 27-8911 2
2 Spray Nozzle- 1501.5 18-0294 2
- Spray Nozzle- 1502 18-0295 2
- Spray Nozzle- 1502.5 18-0096 2
- Spray Nozzle- 1503 18-0053 2
- Spray Nozzle- 2501.5 18-0297 1
- Spray Nozzle- 2502 18-0298 2
- Spray Nozzle- 2502.5 18-0299 2
- Spray Nozzle- 2503 18-0151 2
3 Spray Bar 33-0299 1
4 Reducer 24-0156 1
5 Swivel Assembly 33-0289 1
6 Quick Connect 17-0007 1
7 Swivel Wheel 14-0073 1
8 Washer 29-0010 1
9 Swivel Wheel Mount Plate 20-0472 1
10 Nut 30-0163 3
11 Nut 30-0155 6
12 Bolt 20-0016 2
13 Cover Assembly 33-0300 1
14 Decal- Mi-T-M Stripe 34-0185 1
15 Decal- Warning 34-0845 1
16 Bolt 20-0015 4
17 Handle Base 20-0473 1
18 Handle- Right Side 7-0153 1
19 Set Screw 27-8913 2
20 Trigger Gun 16-0351 1
21 Elbow 24-0105 1
22 Quick Connect 17-0005 1
23 High Presssure Hose 15-0196 1
24 Handle- Left Side 7-0154 2
25 Wire 33-0022 5
26 Bolt 27-0117 2
27 Quick Connect 17-0006 1
28 Wheel 14-0074 2

14 Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998
SWIVEL ASSEMBLY (33-0289)
0MGEN270-111797-DCE

Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998 15
OMGEN270-111797-DCE
SWIVEL ASSEMBLY (33-0289)
REF. # DESCRIPTION PART # QTY.
1 Bolt 27-8914 16
2 Lower Plate 33-0283 1
3 Quad Seal N/A Sep. 1
4 Snap Ring 43-0094 2
5 Bearing 48-0068 2
6 Rotor Shaft 33-0284 1
7 Bearing Housing 33-0285 1
8 Static O-Ring N/A Sep. 1
9 Secondary Seal N/A Sep. 1
10 Upper Plate 33-0286 1
11 Static O-Ring N/A Sep. 1
12 Main Seal N/A Sep. 1
13 Seal Cap 33-0287 1
14 Bolt 27-8915 8
15 Nut 30-0136 12
16 Bolt 27-8916 4
17 Clamp Ring 43-0095 1
Seal Kit (Inc. 3,8,9,11,12) 70-0218

16 Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998
GUN ASSEMBLY (16-0351)
0MGEN271-111897-DCE

Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998 17
0MGEN271-111897-DCE
GUN ASSEMBLY (16-0351)
REF. # DESCRIPTION PART # QTY.
1 Housing 16-0352 1
2 Plug 16-0353 1
3 Washer N/A Sep. 1
4 Spring 49-0137 1
5 Ball N/A Sep. 1
6 Seat N/A Sep. 1
7 O-Ring N/A Sep. 1
8 Housing 16-0354 1
9 Fitting 16-0355 1
10 O-Ring N/A Sep. 1
11 Back-up Ring N/A Sep. 1
12 Piston Rod N/A Sep. 1
13 Plug 16-0356 1
14 Striker 16-0357 1
15 Trigger Lock 16-0358 1
16 Pin 43-0076 1
17 Trigger 16-0359 1
18 Pin 43-0093 1
19 Fitting 16-0360 1
20 Housing 16-0361 1
21 Screw 27-4061 7
Gun Repair Kit (3,5-7,10,-12) 70-0217

18 Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998
NOTES

Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998 19
MI-T-M®CORPORATION STATEMENT OF WARRANTY
ROTARY SURFACE CLEANER
Mi-T-M®Corporation warrants all parts, (except those referred to below), of your Mi-T-M Rotary
Surface Cleaner to be free from defects in materials and workmanship during the following
periods:
1. For One (1) Year from the date of original purchase:
High Pressure Swivel
2. For Ninety (90) days from the date of original purchase:
Rotary Surface System Components
Defective parts not subject to normal wear and tear will be repaired or replaced at our option
during the warranty period which upon examination is disclosed to have been defective in
material or workmanship. In any event, reimbursement is limited to the purchase price paid.
Exclusions:
1. Normal wear parts:
Quick Connects Nozzles
Trigger Gun Valve Assembly
2. This warranty does not cover parts damaged due to normal wear, m i s a p p l i c a t i o n ,
misuse, accidents, operation at other than recommended speeds, pressures or temperature,
improper storage or freight damage. Parts damaged or worn because of the use of any type
of detergents or by operation in abrasive or corrosive environments are not warranted. Failure
to follow recommended operating and maintenance procedures also voids warranty.
3. The use of other than Genuine Mi-T-M®Repair Parts will void warranty. Parts returned,
prepaid to our factory or to a Mi-T-M®Authorized Service Center will be inspected and replaced
free of charge if found to be defective and subject to warranty. Under no circumstance shall
Mi-T-M®Corporation bear any responsibility for loss of use of the unit, loss of time or rental,
inconvenience, commercial loss or consequential damages. There are no warranties which
extend beyond the description of the face hereof.
For Service or Warranty Consideration, contact
Mi-T-M®Corporation, 8650 Enterprise Drive, Peosta, IA 52068-0050
319-556-7484 / 800-553-9053 / Fax [phone]
Monday - Friday 7:30 a.m. - 5:00 p.m. CST

20 Mi-T-M® Rotary Surface Cleaner Manual (28 Inch) 1998
Manufactured by Mi-T-M
8650 Enterprise Drive, Peosta IA 52068
563-556-7484/ Fax [phone]