DiamaPro Systems SCR-84 User manual

OWNER’S MANUAL
SCR-84
WALK-BEHIND FLOOR SCRAPER
OPERATION & MAINTENANCE MANUAL
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE

WARRANTY REGISTRATION CARD
Form must be completed and submitted within 30 days from the date of purchase.
Customer Information
First and Last Name
Company Name
Address City State Zip Code
Phone Number Email
Machine Information
Machine Type Machine Model
Serial # Purchase Date (dd/mm/yy)
DiamaPro Systems®
3343 Peachtree Road NE
Suite 145 #24
Atlanta, GA 30326
470-977-2323 nwww.diamaprosystems.com [e-mail]

INTRODUCTION
This manual guarantees the safe and e󰀩cient use of the machine. This
manual is part of the machine and has to always be kept near the machine
and be accessible for the operating personnel at all times.
The operating personnel have to have carefully read and understood this
manual before any work commences. Prerequisite for safe working is the
compliance with all the safety and handling instructions in this manual.
Furthermore, the local accident prevention regulations and the general
safety conditions for the use of the machine are applicable.
Illustrations in this manual are for the purpose of explanation and may
di󰀨er from the actual design of the machine.
When passing the machine on to third parties this manual must be includ-
ed. All of the instructions and technical specications in this manual have
been written in compliance with current technical norms and regulations
together with our many years of knowledge and experience.
Disclaimer: DiamaPro® Systems and its a󰀩liates take no responsibility
for any damage, injury or death resulting from the incorrect or unsafe use
of this product. Use of this product should be undertaken by competent
persons only. It is the operator’s responsibility to ensure that the following
safety procedures are followed. If you are unsure, do not operate this
product.
IT IS THE OPERATORS RESPONSIBILITY TO READ THIS MANUAL
AND USE THE MACHINE IN A SAFE MANNER: Failure to follow written
instructions and warnings symbols depicted in this instruction manual and
on the machine may result in serious injury or death for the user and other
persons. Read, understand and follow all the instructions, warnings, and
general safe work practices, which are depicted on the machine and in the
instruction manual at all times.
Always disconnect machine from power before servicing.
Maintenance, replacement or adjustment of parts can cause
serious injury or death to the user or other persons, if the machine
is connected to the power supply while servicing.
Keep the cable away from the blade to avoid damaging the cable.
DO NOT run over or damage the power cord, this can cause a
dangerous electric shock.
The machine is constructed for use in dry environments only.
Danger of electric shock. Do not expose the machine to water or
rain.
Connect to 120V AC power only.
Connecting the machine to an incorrect power supply can cause
damage to the machine and injury to the user and persons in
proximity.
1. SAFETY
1.1. Electrical Safety
Extension Cord– Only use machine with 12 gauge or larger
and 50’ or less length of cord.
Use of extension cords that are too small or too long can cause
dangerous overloading of the cord and machine resulting in poten-
tial re and electrical hazards.
Electrical cables and plugs must be kept in good condition
and replaced by trained electrical technicians when damaged
. Whether it is due to normal wear or abuse electrical cables and
plugs can wear out and expose operators and persons in proximity
to danger of electrocution or burn. Inspect all electrical cables and
plugs before use, worn or damaged electrical cables and plugs
must be replaced by a trained electrical technician.
Never operate with a damaged cable or plugs.
Replacement of worn or damaged cables or plugs must be
completed by a qualied person.
Improperly connecting the grounding wire can result in risk of
electric shock.
Check with a qualied electrician if you are in doubt as to whether
the outlet is properly grounded. Do not modify the plug on the
machine. Never remove the grounding prong from the plug or ex-
tension cords. Do not use the tool if the cord or plug is damaged.
If the plug will not t the outlet, have a proper outlet installed by a
qualied electrician.
Do not use machine when cable is damaged. Do not move the
machine by dragging the cable. Utilization with a damaged cable
can cause an electric shock.
The operator has to be instructed to the use of the machine
before operating.
Failure to observe the information in this instruction manual before
use, adjustment or maintenance could cause serious injury to
persons or property.
Read all security statements. Be sure that data plate and
warning labels are mounted / xed to the machine.
Operator and persons in proximity must wear proper personal
protective equipment including eye-protection, ear protection,
closed toe shoes, N95 minimum dust mask and hearing
protection. Removal of ooring materials and performing main-
tenance on machine can cause hazardous ying debris, airborne
dust, hazardous debris on walking surfaces, and loud noises.
Keep arms, feet and clothes away from the operating machine
parts.
Moving parts of the machine can cause serious injury or damage.
Operator must know what type of material is being removed.
Flooring can be composed of material that is harmful to be
exposed to, especially in the form of air born dust. Some of these
dangerous materials including asbestos and lead must not be
removed by machine and must only be re-mediated by licensed
professionals.
SPARE PARTS
Only use original spare parts and accessories specially made
for this machine. DO NOT USE NON ORIGINAL EQUIPMENT
MANUFACTURES PARTS FOR REPLACEMENT. Failure to use
original parts can cause early failure or potentially dangerous fail-
ures or operating conditions. The manufacturer assume no liability
for damages / injury caused by after-market parts.
When replacing spare parts or electrical components, the technical
data specied by the manufacturer must be observed and original
spare parts must be used. Do not use machine if connecting ca-
bles or components are not in good operating condition.
WORK SAFETY
The scraper SCR-84 is built according to the state of the art and
the recognized safety-technical rules and must only be used for its
intended purpose in safe working environment.
Mandatory Action
Warning/Caution
General Safe Condition
Prohibited Action
1.2. Operator Warnings
1.3. Usage

Improper use of the machine can cause injury / damage to the op-
erator, property, bystanders, and the machine itself. When working
with the machine the operator must pay attention to other persons
in the work space. It is not recommended to use this machine
around children due to the unavoidable hazard of an unprotected
sharp blade at a low height. If the machine fails in any manner, it
must be switched o󰀨 immediately and disconnected by unplugging
the power cord from the power supply then lock the cord end and
tag the machine until repaired.
INTENDED USE
The scraper SCR-84 is intended exclusively for light duty removal
of bonded oor coverings such as linoleum, rubber, carpets and
vinyl coverings installed in dry areas on at walking surfaces. Any
other use is considered to be improper and the manufacturer is
not liable for damage or injury caused by improper use.
Do not use non standard blades not approved by the
manufacturer. Do not use machine on wet surfaces.
A powerful stripper for small and medium-sized areas. Works on wooden
or concrete surfaces and will remove virtually any substance adhering to
the oor.
SPECIAL FEATURES:
- adjustable cutting angle
- adjustable handle
- machine runs very quiet with reduced vibration
- big wheels ensure easy mobility on job sites
- foldable handle for easy transport
The vibration level may di󰀨er from the indicated value during use
depending on the blade size and type of material being removed.
Do not use the machine continuously for more then 120 min.
Prolonged exposure to vibration can cause injury to hands and
arms. Take frequent breaks, wear vibration reducing gloves, en-
sure machine is in good repair so vibration is kept to the lowest
amount possible.
Machine is sold with 6mm hex wrench for installing blades.
The SCR-84 is delivered in transport position.
For instructions on setting to the working position, see Section
3.2: Adjusting Handle Height.
The height of the handle can be adjusted in three positions.
- Remove the locking pin
- Adjust handle to preferred position and re-install locking pin
2. PRODUCT INFORMATION
2.1. Technical Description
2.2. Technical Data
POWER SUPPLY
DRIVE SYSTEM
MOTOR SIZE
CUTTING ACTION
WEIGHT
DIMENSIONS (LxWxH)
110 V
MANUAL
1 HP
ORBITAL
84LBS
22 X 13 X 43 IN
2.3. Standard Accessories
3. SETUP
Handle Bar
ON/OFF Switch
Handle Angle Adjustment
Working Angle Adjustment
Front Weight
Cutting Head/Blade Holder
with Material Deector
3.1. Machine Description
3.2. Adjusting Handle Height
FIG 3-A
3-A

A steep / aggressive angle works best for removing glue and
for thin materials. A low / less aggressive angle is best for most
removal situations. The type of sub oor can also change what
working angle is best. Typically a high aggressive angle will not
work well on a wood sub oor, but will work ne on concrete.
- Loosen the clamping lever on the wheel assembly
- Lift on the handle to raise the back the of the machine, the wheel
assembly will slide keeping the wheels in contact with the oor
- Tighten the clamping lever again to hold the machine in the
desired position.
Regardless of the working angle, the handle bar should always be
adjusted to the user’s belt height.
- bevel up for concrete.
- bevel down for wood or soft sub-oors.
- Narrow blades reduce the amount of e󰀨ort required to
push the machine.
Dull blades reduce the performance of the machine. Sharpen or
replace the blades as needed.
CAUTION! Sharp blades are dangerous. Wear protective gloves
when changing or sharpening blades. Use the supplied extend-
ed wrench to keep hand safely away from the edge of the blade
when installing on machine.
1. Place a block under the front
of the machine
2. Loosen the two bolts with the
extended bolt wrench and
replace the blade.
It is not necessary to remove the bolts
Be sure that the blade is far enough under the blade-holder, to
insure a secure hold.
USE ONLY ORIGINAL BLADES
3-B
3-C
FIG 3-B
3.3. Adjustment of Working Angle
FIG 3-C
3.4. Choice of Blade
3.5. Change Blade
FIG 3-I
FIG 3-J
3-I
Always wear gloves and safety
glasses.
It is not necessary to remove the bolts.
1. Sharpen the blade mounted to the
machine. Using hand grinder, block
up front of machine so blade is o󰀨 the oor. Only grind on the
original beveled edge maintaining factory angle. Machine
works best with a single-sided bevel. Sharpen the blade with 5”
or smaller diameter disk with 120 or ner grit.
Be careful not to catch disk on edge or
corner of blade.
Blade sharpened “bevel down”
Blade sharpened “bevel up”
Sharpening with a ne-toothed le
2. Blade can also be e󰀨ectively sharpened
on a bench grinder or while secured in a
vice. Follow all the same instructions
listed above.
1. After blade is installed plug in 12 gauge or heavier cord to 15amp
minimum 120v power source and connect to the machine.
2. Press the green power button on the handle and the machine will start.
Keep blades sharp! Sharpening blades frequently will signicantly
increase productivity and ease of use. Keep your work area clean
and clear of debris. Always wear eye and ear protection when
working with the machine.
Vinyl, Rubber, PVC, Direct Glued Carpet
Pre-score the ooring by cutting it into
strips approximately the width of the
blade. Pre-scoring carpet / sheet goods
allows for easy handling of the removed
material and reduces the amount of e󰀨ort
required to break the adhesive bond.
For materials with a strong bond use a low blade
angle. A second pass with a high blade angle can be
used to remove residual adhesive.
If working over a wood sub-oor, a high
blade angle will cause the blade to dig in.
A very sharp blade at a low angle can be
used to remove adhesive or a secondary
process such as sanding with course
paper may be required.
For soft coverings that are attached with
a strong bond self scoring blades with
vertical cutting wings can be used.
3.6. Sharpening the Blade
FIG 3-K
FIG 3-L
FIG 3-M
4. OPERATION
4.1. Start the Machine
4.2. Removal of Floor Coverings
FIG 4-B
FIG 4-C 4-B
4-C

5. TROUBLESHOOTING
FAULT REMEDY
Machine will not start n Ensure outlet has power, check for damage in cord,
Noise from motor n Look for damage to fan cover on top of motor
Rattling noise from machine n Check for proper torque on wheel axles and legs, parts should
be easy to move but not loose. Pull bottom cover and check for
broken isolators or bad cutting head bearing.
Machine is hard to push n Sharpen the blade, set blade to low angle, switch to smaller
blade
Frequent trip of circuit breaker n Try to nd a di󰀨erent circuit
n Replace extension cord, use shorter and or heavier
gauge extension cord.
6. MAINTENANCE / CARE / REPAIR
Before startup:
Check the guards, electrical components and cords for damage
Check wheel assembly , bottom cover, and cutting head are secure and in good working order
Check the blade - Blades can become dull very quickly and cause signicant decrease in performance
When putting the machine away:
Unplug extension cable from machine and power source
Remove the blade from the machine and put in a safe place
Prolonged exposure to corrosive environments, high humidity, and direct sunlight will cause premature wear and failure to metal, plastic and
rubber components. When not in use, store the machine under cover in a clean dry place.
Perform maintenance, repair, or cleaning on the machine with the blade removed and no power connected.
NEVER use a pressure washer or garden hose to clean the machine. If di󰀩cult cleaning is required the use of conventional degreaser, cleaners,
adhesive removers and a cloth is the recommended method. Take care to not remove or deface any safety , warning, or instruction labels.
DO NOT modify, remove, or render inoperable any guards or safety elements of the machine.
If the plug of the machine needs to be replaced the manufacturer recommends not to use assembly style plugs.
The machine is designed to have a molded plug and cable to ensure long life and maximum safety from electrical hazards. Only use original
replacement parts and have them installed by a trained electrical professional
Dispose of the machine in accordance with all local laws and ordinances..

7. REPLACEMENT PARTS
RECOMMENDED REPLACEMENT PARTS
PART NO. DESCRIPTION QTY.
DP-SCR-10251
DP-SCR-10426
DP-SCR-10470
DP-SCR-10427
DP-SCR-10172
DP-SCR-10449
DP-SCR-10448
DP-SCR-10146
DP-SCR-10469
DP-SCR-10477
DP-SCR-10478
ON/OFF SWITCH
MOLDED PIGTAIL
CABLE FROM SWITCH TO MOTOR
STRAIN RELIEF
HANDLE PIN
FLAT RUBBER GRIP
ROUND RUBBER GRIP
CUTTING HEAD FLANGE BEARING
ISOLATOR
NYLON WASHER
NYLON WASHER
1
1
1
1
1
1
2
1
4
2
2

8. PARTS BREAKDOWN & PARTS LIST
ELECTRICAL COMPONENTS
PART NO. DESCRIPTION QTY.
DP-SCR-10467
DP-SCR-10470
DP-SCR-10426
DP-SCR-10251
DP-SCR-10471
DP-SCR-10192
DP-SCR-10427
ELECTRIC MOTOR
CABLE FROM SWITCH TO MOTOR
MOLDED PIGTAIL
ON/OFF SWITCH
RUBBER GROMMET
SWITCH PLATE
STRAIN RELIEF
1
1
2
1
1
1
1

8. PARTS BREAKDOWN & PARTS LIST
CUTTING HEAD & WHEELS COMPONENT
PART NO. DESCRIPTION QTY.
DP-SCR-10146
DP-SCR-10475
DP-SCR-10469
DP-SCR-10200
DP-SCR-10477
DP-SCR-10478
DP-SCR-10205
DP-SCR-10206
CUTTING HEAD FLANGE BEARING
ECCENTRIC
ISOLATOR
AXEL BOLT
NYLON WASHER
NYLON WASHER
NYLON INSERT LOCK NUT
WHEEL
1
1
1
1
1
1
1
1

8. PARTS BREAKDOWN & PARTS LIST
CUTTING HEAD AND DRIVE COMPONENTS
PART NO. DESCRIPTION QTY.
DP-SCR-10472
DP-SCR-10306
DP-SCR-10473
DP-SCR-10449
DP-SCR-10448
DP-SCR-10172
DP-SCR-10474
WRENCH HOLDER
HEX WRENCH (FOR BLADE CLAMP)
TUBE CAP
FLAT RUBBER GRIP
ROUND RUBBER GRIP
HANDLE PIN
OPERATION INSTRUCTIONS PLATE
1
1
1
1
1
1
1

PART NO. DESCRIPTION QTY.
DP-SCR-10198
DP-SCR-10199
DP-SCR-10195
DP-SCR-10191
DP-SCR-10196
DP-SCR-10200
DP-SCR-10201
DP-SCR-10202
DP-SCR-10184
DP-SCR-10187
DP-SCR-10185
DP-SCR-10183
DP-SCR-10197
DP-SCR-10205
FRAME
HANDLE
WHEEL LINKAGE
STRAP
WHEEL SPACER
AXEL BOLT
PLAIN STRAP WASHER
STRAP WASHER WITH NUT
HANDLE BOLT
CUTTING HEAD
BOTTOM COVER
BLADE CLAMP
590 CUT WEIGHT
NYLON INSERT LOCK NUT
1
1
2
2
1
1
1
1
1
1
1
1
1
1
8. PARTS BREAKDOWN & PARTS LIST
FRAME KIT PARTS
ANCILLARY PARTS
PART NO. DESCRIPTION QTY.
DP-SCR-10206
DP-SCR-10146
WHEEL
CUTTING HEAD FLANGE BEARING
2
1

DiamaPro® Systems
3343 Peachtree Road NE
Suite 145 #24
Atlanta, GA 30326
470-977-2323