The National 7700 is a battery-powered ride-on floor scraper that runs on twelve 200-amp hour batteries. National describes it as bigger, heavier and faster than the 5700, built to remove difficult material on almost any jobsite.
Specifications
Figures from National's product page and operating manual. Where the two disagree, both are shown with the manual first.
| Spec | Value |
|---|---|
| Power | Battery; 4 HP (2.98 kW) (manual) |
| Batteries | Twelve 8 V, 200 amp batteries, part 5213-3 |
| Input voltage | 115V 60 Hz / 230V 50 Hz (product page) |
| Dimensions (W x L x H) | 29.5" x 63" x 50" (74.93 x 160 x 127 cm) |
| Weight | Weighted 2,780 lb (manual); 2,733 lb (1,239.7 kg) (product page) |
| Machine only | 2,548 lb (1,155.8 kg) |
| Removable weight | 185 lb front (product page) |
| Speed | Up to 200 ft/min (61 m/min) |
| Sound level | 94-97 dB(A) (manual) |
| Hydraulic tank | 6 gallons (22.7 L) (manual) |
Maintenance schedule
From National's 7700 operating and service manual (401836 Rev L), page 18.
| Interval | What to do |
|---|---|
| Daily | Inspect extension cord for damage; check wheels, caster and wheel motors for build-up and clean; inspect all safety devices (e-stop, backup beeper, seat switch); inspect hoses and fittings for leaks; blow out the fan cover on the bottom of the motor after each job |
| After first 100 hrs, then every 200 hrs | Check hydraulic oil level; replace spin-on hydraulic oil filter |
| After first 500 hrs, then every 1,000 hrs | Change hydraulic fluid |
| Every 1,000 hrs | Grease front caster wheel |
Fluids and lubricants
What National specifies for this machine.
- Hydraulic oil: Texaco Rando 46 or a compatible ISO or AW #46 fluid from a brand-name manufacturer. Tank holds 6 gallons (22.7 L) total; plan on 5.5 gallons (20.8 L) at an oil change because some oil stays in the system.
Videos from National
Walkthroughs and how-to videos National has published for this machine, plus a few general ones that apply to it.
- 7700 Floor Scraper In Use
- 7700 Carpet Removal
- 7700 Guillotine Hardwood Demo
- Replacing the Battery Charger on Your 5700 or 7700
- 5700 vs 7700 - What's the difference?
- Battery Ride On Scrapers Start-Up
- Ride-On Scraper Battery Replacement
- Test the Battery Load on Your Rider
Sources
Everything on this page comes from these National Flooring Equipment pages and documents.
