DR Power Mini Tiller Roto-Hog (January 2015 - Present) - Manual (Page 14)

14 DR ®
ROTO-HOG™ Mini Tiller
Chapter 4: Maintaining the DR ROTO-HOG Mini Tiller
Regular Maintenance Checklist
Procedure
Every 8 Hours
(Daily)
Every 50
Hours or
Seasonally
Every 100
Hours or
Seasonally
Each
Year
Check the Engine Fuel Level ▲
Check the Engine Oil Level ▲
Check Air Filter (See Air Filter section) ▲
▲
Clean the Tines and Hood * After each use
Check the general condition of the machine, e.g. nuts, ▲
Clean Engine Exterior & Cooling Fins ▲
Clean Air Filter ** (See Air Filter section) (20 Hours)
Change the Engine Oil **** (see “Changing Oil” (Initial 5 Hours)
▲
Check/Adjust Spark Plug ▲
Clean Fuel Filter ▲
Check Tines for Wear
▲
Replace Fuel Filter ***
▲
Clean Gas Tank ***
▲
Replace Air Filter (See Air Filter section)
▲
Replace Spark Plug
▲
* Cover the Engine Muffler, Carburetor and Air Filter before using a hose to clean the Tines and Hood.
** Service more frequently under dusty conditions
*** These items should only be performed by a mechanically proficient person or by the servicing dealer
****
Perform initial oil change after first 5 hours of operation, then every 50 hours or every season
NOTE: All repair parts must come from the factory. Never replace parts that are not specifically designed for the Tiller.
Lubrication
TRANSMISSION
The transmission case has grease installed at the factory. It is recommended that once a year the gear case be split by a
qualified service professional and the grease level checked. Add a molylithium type grease only if level of grease is below
top of the gears. DO NOT OVERFILL.
ENGINE
Choose engine oil that meets or surpasses the latest API service classification. For temperatures higher than 32º F, use
10W-30 motor oil. Use SAE 5W-30 if temperatures are below 32º F.
Oil Maintenance
After the first five hours of operating a new Viper engine the oil should be replaced, and every 50 hours of operating time
thereafter. The oil should be changed every 25 hours if used under severe conditions, such as in high temperatures or
under heavy loads. Check oil periodically; do not overfill!
Changing Oil
Be sure the engine is not operating and is located on a level surface before checking or refilling oil. Engine should be
warm for easy removal of oil.
Before performing any maintenance procedure or inspection, flip the ON/OFF switch to the OFF position to stop the
engine, wait five minutes to allow all parts to cool. Disconnect the spark plug wire, keeping it away from the spark plug.