Honda Harmony HRM215SXA Owner's Manual page 46

THE IMPORTANCE OF MAINTENANCE
Good maintenance is essential for safe, economical, and trouble-free
operation. It will also help reduce air pollution.
Improper maintenance, or failure to correct a
problem before operation, can cause a
malfunction in which you can be seriously
hurt or killed.
Always follow the inspection and maintenance
recommendations and schedules in this
owners manual.
To help you properly care for your mower, the following pages
include a maintenance schedule, routine inspection procedures, and
simple maintenance procedures using basic hand tools. Other
service tasks that are more difficult, or require special tools, are best
handled by professionals and are normally performed by a Honda
technician or other qualified mechanic.
The maintenance schedule applies to normal operating conditions. If
you operate your mower under severe conditions, such as sustained
high-load or high-temperature operation, or use in unusually wet or
dusty conditions, consult your servicing dealer for recommendations
applicable to your individual needs and use.
Maintenance, replacement, or repair of the emission control
devices and systems may be performed by any engine repair
establishment or individual, using parts that are "certified" to
EPA standards.