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Safety

Environment

Avoid use in dangerous environments.  
Do not use in rain, damp or wet locations, or in the presence of 

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

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

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Do not come within 3 ft. of the machine’s perimeter during 
operation. 
Guard against electric shock.  

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5

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, 
hearing protection during extended use, and a dust mask for dusty 
operations. Hard hats, face shields, safety shoes, etc. should be 

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Maintain control; stay alert.  

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Observe surroundings at all times and use common sense. Do not 

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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-

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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. 
 

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sive cleaning products.
Schedule regular maintenance check-ups. 
Ensure machine is properly cleaned and serviced. Remove all 

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during maintenance and repair work. Loose or damaged parts 
should be replaced immediately; use only NFE parts. 

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make changes to machine without authorization from NFE.

CAUTION! ENSURE PROPER USE OF EXTENSION CORDS. IF AMP DRAW IS HIGHER THAN SHOWN 
ON TABLE OR CORD IS LONGER THAN 50 FT, SEE AN ELECTRICIAN. 
ASSUMPTIONS: 3% ALLOWABLE VOLTAGE DROP, COPPER CONDUCTORS RATED FOR 75

O

C, 1.25 

SAFETY FACTOR, CORD VOLTAGE RATING OF 600VAC, PROPER CORD TYPES (STO, STOW, SOOW). 

Amp Draw

Gauge

0-12

14

13-16

12

14-24

10

25-40

8

5

Summary of Contents for 5280 Series

Page 1: ...Read Manual Before Servicing Machine 402972 Rev D 5280 SELF PROPELLED SCRAPER SERVICE MANUAL...

Page 2: ......

Page 3: ...c Fluid 9 Inspection of Internal Parts 9 Tank Removal 9 Control Valve Replacement 10 Speed Control Replacement 10 Pressure Valve Replacement 10 Forward Switch Replacement 10 Power Cord 10 Parts List a...

Page 4: ...0 Hz Silver Vein 5280 23XXXX 120V 60 Hz Silver Vein International 5280 11XXXX 230V 50 Hz Silver Vein 5280 13XXXX 230V 50 Hz Silver Vein 5280 20XXXX 110V 50 Hz Silver Vein 5280 26XXXX 230V 50 Hz Silver...

Page 5: ...tooling Remove tooling when ma FKLQH LV QRW LQ XVH DQG RU ORZHU FXWWLQJ KHDG WR WKH RRU Do not force equipment Equipment will perform best at the rate for which it was designed Excessive force only c...

Page 6: ...EPRODUCTIVE 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 SUPPLIE...

Page 7: ...GH LWK WKH H FHSWLRQ RI WKRVH FRPSULVHG SULPDULO RI ZDWHU DOO K GUDXOLF XLG LV DPPDEOH LQFOXGLQJ PDQ UH UHVLVWDQW K GUDXOLF XLGV ZKHQ H SRVHG WR WKH SURSHU FRQGLWLRQV HDNLQJ SUHV VXUL HG K GUDXOLF XLG...

Page 8: ...tion No forward movement Damaged belt Remove front cover plate and inspect belt Damaged speed control valve Inspect speed control valve Turn counter clockwise to open valve Motor shuts off or won t st...

Page 9: ...QH KDV D VWUDLQLQJ V VWHP EXW DGG XLG WKURXJK D OWHU RU IXQQHO ZLWK D VFUHHQ WR NHHS XLG FOHDQ INSPECTION OF INTERNAL PARTS Visual inspection of internal parts can be done without draining tank 1 Remo...

Page 10: ...CONTROL REPLACEMENT 1 Use 3 32 Allen wrench to remove metal knob 2 Use a 1 socket to remove and replace speed control valve 3 Re install metal knob PRESSURE VALVE REPLACEMENT This has been factory set...

Page 11: ...DESCRIPTION QTY EXTERNAL 11 3 10 16 15 6 1 4 9 8 2 12 14 7 13 5 ADDITIONAL PARTS NOT SHOWN 1 74631 BOLT HEX FLANGE BOLT M6 16 3 2 5280 9 SPACER WHEEL 2 3 73315 BOLT FLAT HEAD SOCKET 5 16 18X1 2 4 746...

Page 12: ...4 11 5280 113 PUMP HYDRAULIC 1 12 6280 113A KEY HYDRAULIC PUMP NOT SHOWN 1 13 5280 118 FITTING 90 DEGREE 1 14 5280 129 ECCENTRIC 1 15 5280 132C PULLEY PUMP 1 16 73903 KEY 3 16X3 16X2 1 4 1 17 5280 13...

Page 13: ...SE HYDRAULIC 1 4 X 32 F 90F 1 16 5700 76 HOSE HYDRAULIC 3 8 X 26 F F 1 17 6280 207 SWITCH ON OFF 1 18 6280 215 VALVE BLOCK ASSEMBLY 1 19 73002 WASHER SPLIT LOCK 1 4 4 20 73005 SCREW HEX HEAD CAP 1 4 2...

Page 14: ...CORD HANDLE 200V INTERNATIONAL ONLY 1 3 5280 172A LEVER HANDLE 1 4 74650 BOLT HEXFLANGEM10 25 5 73502 STRAIN RELIEF STRAIGHT 1 2 INCH 3376 5686 2 6 401438 PLUG MALE EU1 16P 250V 16A EUROPE INTERNATION...

Page 15: ...TED 3 8 16 4 4 73217 SCREW SOCKET HEAD CAP LOW 3 8 16 X 3 4 4 PART DESCRIPTION QTY CUTTING HEAD HYDRAULIC TANK 1 6 4 7 3 2 2 2 2 2 3 4 3 4 1 3 3 4 4 LABELS NOT SHOWN 1 402008 LABEL 5280 1 2 402463 LAB...

Page 16: ...74630 Bolt Hex Head Cap M6 12 8 8 9 2 403806 Plate Handle Top 1 3 403795 Cover Handle Body CE 1 4 403817 Switch Safety 230V 50Hz 1 5 401438 Plug Male EU1 16P 250V 16A Europe 1 6 403797 Screw Phillips...

Page 17: ...WIRING 110V FEMALE PLUG MALE PLUG GREEN BLACK WHITE ON OFF SWITCH 4L 5L 1N 2N PLUG U1 U3 Z8 U2 U4 Z5 MOTOR GREEN YELLOW BLUE BROWN BLUE BROWN GREEN YELLOW 5280 MACHINE WIRING 220V FEMALE PLUG MALE PL...

Page 18: ...Parts List and Diagrams 18 HYDRAULICS...

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Page 20: ...9250 Xylon Avenue N Minneapolis MN 55445 U S A Toll free 800 245 0267 Phone 763 315 5300 Fax 800 648 7124 Fax 763 535 8255 Web Site www nationalequipment com E Mail info nationalequipment com...

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