National flooring equipment 550 User manual

Read Manual Before Servicing Machine

402990 Rev H

550 ADJUSTABLE HANDLE SCRAPER

SERVICE MANUAL

Table of Contents

Table of Contents .......................................................................................................................................................... 3

Specications ................................................................................................................................................................ 4

Safety.............................................................................................................................................................................. 5

General Rules for Safe Operation ......................................................................................................................... 5

Walk-Behind Scraper Safety Guidelines................................................................................................................ 6

Recommended Electrical Practices ....................................................................................................................... 7

Troubleshooting Guide ................................................................................................................................................. 9

Maintenance................................................................................................................................................................. 10

Maintaining Equipment ........................................................................................................................................ 10

Parts List and Diagrams ..............................................................................................................................................11

Overall Machine....................................................................................................................................................11

Frame and Wheel Assembly................................................................................................................................ 12

550-11 Wheel Adjustment Assembly ................................................................................................................... 13

Cutting Head........................................................................................................................................................ 14

Motor.................................................................................................................................................................... 15

Switch-Domestic Machines.................................................................................................................................. 16

Switch-International Machines............................................................................................................................. 17

Counterweight...................................................................................................................................................... 19

Upper Handle....................................................................................................................................................... 19

Labels .................................................................................................................................................................. 20

Accessories ......................................................................................................................................................... 20

Wiring Diagrams .................................................................................................................................................. 21

Warranty ....................................................................................................................................................................... 25

Specications

Machine Variants

Region Serial Number Input Power Amps (Full Load) RPM Body Panels

Domestic

(North America)

550-10XXXX 120V / 60 Hz 14A 1800 Silver Vein

550-12XXXX 120V / 60 Hz 14A 1800 Green

550-23XXXX 120V / 60 Hz 14A 1800 Silver Vein

International

550-11XXXX 230V / 50 Hz 7A 1425 Silver Vein

550-13XXXX 230V / 50 Hz 7A 1425 Silver Vein

550-15XXXX 230V / 50 Hz 7A 1425 Orange

550-20XXXX 110V / 50 Hz 13A 1425 Silver Vein

550-29XXXX 230V / 50 Hz 7A 1425 Silver Vein

Product Specications

Width Max.Length Height Weight

(Machine Only) Speed

Vibration

X Axis Y Axis Z Axis

17.75” (45 cm) 32.5” (83 cm)

42.5” (108 cm)

with handle

21” (53 cm)

without handle

123 lb (55.8 kg) Manual 5.5 m/s211.1 m/s211.6 m/s2

Safety

ENVIRONMENT

Avoid use in dangerous environments.

Do not use in rain, damp or wet locations, or in the presence of

explosive atmospheres (gaseous fumes, dust, or ammable mate-

rials). Remove materials or debris that may be ignited by sparks.

Keep work area tidy and well-lit - a cluttered or dark work area may

lead to accidents. Extreme heat or cold may affect performance.

Protect others in the work area and be aware of surroundings.

Provide barriers or shields as needed to protect others from debris

and machine operation. Children and other bystanders should be

kept at a safe distance from the work area to avoid distracting the

operator and/or coming into contact with the machine. Operator

should be aware of who is around them and their proximity. Sup-

port personnel should never stand next to, in front of, or behind

the machine while the machine is running. Operator should look

behind them before backing up.

Do not come within 3 ft. of the machine’s perimeter during

operation.

Guard against electric shock.

Ensure that machine is connected to a properly grounded outlet.

Prevent bodily contact with grounded surfaces, e.g. pipes, radia-

tors, ranges, and refrigerators. When scoring or making cuts,

always check the work area for hidden wires or pipes.

GENERAL RULES FOR SAFE OPERATION

Before use, anyone operating or performing maintenance on this equipment must read and understand this manual, as well as any labels pack-

aged with or attached to the machine and its components. Read the manual carefully to learn equipment applications and limitations, as well

as potential hazards associated with this type of equipment. Keep manual near machine at all times. If your manual is lost or damaged, contact

National Flooring Equipment (NFE) for a replacement.

PERSONAL

Dress properly and use safety gear.

Do not wear loose clothing; it may be caught in moving parts.

Anyone in the work area must wear safety goggles or glasses and

hearing protection. Wear a dust mask for dusty operations. Hard

hats, face shields, safety shoes, etc. should be worn when speci-

ed or necessary.

Maintain control; stay alert.

Keep proper footing and balance, and maintain a rm grip. Ob-

serve surroundings at all times. Do not use when tired, distracted,

or under the inuence of drugs, alcohol, or any medication that

may cause decreased control.

Keep hands away from all moving parts and tooling.

Wear gloves when changing tooling. Remove tooling when ma-

chine is not in use and/or lower cutting head to the oor.

Do not force equipment.

Equipment will perform best at the rate for which it was designed.

Excessive force only causes operator fatigue, increased wear, and

reduced control.

EQUIPMENT

Use proper parts and accessories.

Only use NFE-approved or recommended parts and accessories.

Using any that are not recommended may be hazardous.

Ensure accessories are properly installed and maintained.

Do not permanently remove a guard or other safety device when

installing an accessory or attachment.

Inspect for damaged parts.

Check for misalignment, binding of moving parts, loose fasteners,

improper mounting, broken parts, and any other conditions that

may affect operation. If abnormal noise or vibration occurs, turn

the machine off immediately. Do not use damaged equipment until

repaired. Do not use if power switch does not turn machine on and

off. For all repairs, insist on only identical NFE replacement parts.

Maintain equipment and labels.

Keep handles dry, clean, and free from oil and grease. Keep cut-

ting edges sharp and clean. Follow instructions for lubricating and

changing accessories. Motor and switches should be completely

enclosed at all times with no exposed wiring. Inspect cord regu-

larly. Labels carry important information; if unreadable or missing,

contact NFE for a free replacement.

Avoid accidental starting; store idle equipment.

When not in use, ensure that the machine is unplugged; do not

turn on before plugging in. Store in a dry, secured place. Remove

tooling when storing, and keep away from children.

MAINTENANCE & REPAIRS

Begin maintenance work only when the machine is shut

down, unplugged, and cooled down.

Use proper cleaning agents.

Ensure that all cleaning rags are ber-free; do not use any aggres-

sive cleaning products.

Schedule regular maintenance check-ups.

Ensure machine is properly cleaned and serviced. Remove all

traces of oil, combustible fuel, or cleaning uids from the machine

and its connections and ttings. Retighten all loose ttings found

during maintenance and repair work. Loose or damaged parts

should be replaced immediately; use only NFE parts.

Do not weld or ame-cut on the machine during repairs, or

make changes to machine without authorization from NFE.

WARNING: GRINDING/CUTTING/DRILLING OF MASONRY, CONCRETE, METAL AND OTHER MATERIALS CAN GENERATE DUST,

MISTS AND FUMES CONTAINING CHEMICALS KNOWN TO CAUSE SERIOUS FATAL INJURY OR ILLNESS, SUCH AS RESPIRATORY

DISEASE, CANCER, BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM. IF YOU ARE UNFAMILIAR WITH THE RISKS ASSOCIATED

WITH THE PARTICULAR MATERIAL BEING CUT, REVIEW THE MATERIAL SAFETY DATA SHEET AND/OR CONSULT YOU EMPLOYER,

THE MATERIAL MANUFACTURER/SUPPLIER, GOVERNMENTAL AGENCIES SUCH AS OSHA AND NIOSH AND OTHER

AUTHORITIES ON HAZARDOUS MATERIALS. CALIFORNIA AND SOME OTHER AUTHORITIES, FOR INSTANCE, HAVE

PUBLISHED LISTS OF SUBSTANCES KNOWN TO CAUSE CANCER, REPRODUCTIVE TOXICITY, OR OTHER HARMFUL

EFFECTS. CONTROL DUST, MIST AND FUMES AT THE SOURCE WHERE POSSIBLE. IN THIS REGARD USE GOOD

WORK PRACTICES AND FOLLOW THE RECOMMENDATIONS OF THE MANUFACTURER/SUPPLIER, OSHA/NIOSH,

AND OCCUPATIONAL AND TRADE ASSOCIATIONS. WHEN THE HAZARDS FROM INHALATION OF DUST, MISTS AND

FUMES CANNOT BE ELIMINATED, THE OPERATOR AND ANY BYSTANDERS SHOULD ALWAYS WEAR A RESPIRATOR

APPROVED BY OSHA/MSHA FOR THE MATERIAL BEING CUT.

Safety

WALK-BEHIND SCRAPER SAFETY GUIDELINES

Before use, anyone operating this equipment must read and understand these safety instructions.