The National 5625 is a propane-powered ride-on floor scraper with a 25 HP engine. National lists it for commercial and industrial floor removal. This page covers the 5625 and the 5625DL, whose dual-lift front end lets the operator adjust blade angle and pitch without leaving the seat; one manual (401823 Rev N) covers both.
Specifications
Figures from National's product page and operating manual. Where the two disagree, both are shown with the manual first.
| Spec | Value |
|---|---|
| Power | Propane; 25 HP (18.6 kW), 2,950 RPM (manual) |
| Width | 26" (66 cm) |
| Height | 51" (129.5 cm) |
| Length | 5625: 58" (147 cm); 5625DL: 63" (160 cm) |
| Weight | Weighted 1,915 lb manual lift / 2,015 lb dual lift (manual); 5625: 1,822 lb (826.4 kg); 5625DL: 1,968 lb (892.7 kg) (product page) |
| Machine only | 1,413 lb manual lift / 1,513 lb dual lift (manual); 5625: 1,377 lb (624.6 kg); 5625DL: 1,513 lb (686.3 kg) (product page) |
| Removable weight | 5625: 370 lb front / 75 lb rear; 5625DL: 455 lb front |
| Speed | Up to 200 ft/min (61 m/min) |
| Hydraulic tank | 6 gallons (22.7 L) (manual) |
Maintenance schedule
From National's 5625 / 5625DL operating and service manual (401823 Rev N), page 22. For full engine service, the manual refers you to the Kawasaki engine manual.
| Interval | What to do |
|---|---|
| Daily | Check all machine components for build-up and clean if needed; inspect all safety devices; inspect hoses and fittings for leaks; check engine oil level |
| First 8 hrs, then every 50 hrs | Change engine oil; clean air cleaner foam and paper elements |
| Every 100 hrs | Clean and regap spark plug |
| After first 100 hrs, then every 200 hrs | Check hydraulic oil level; replace spin-on hydraulic oil filter |
| Every 200 hrs | Inspect radiator; check fan belt condition and tension |
| Every 300 hrs | Replace air cleaner paper element |
| Every 400 hrs | Change coolant |
| 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.
- Engine oil: 5W-30, part 402377; oil filter 400235; air filter element 400218 (manual parts list). See the Kawasaki engine manual for details.
Videos from National
Walkthroughs and how-to videos National has published for this machine, plus a few general ones that apply to it.
- Get To Know Your 5625 Ride-On Propane Scraper
- What's the Difference Between the 5625 and 8000?
- The Original Dual-Lift
- Propane Ride On Scraper Start-Up
- Propane Ride-On Scraper Filter Replacement
- Check the Hydraulic Fluid on your Rider
Sources
Everything on this page comes from these National Flooring Equipment pages and documents.
