Lawn Mower RPM settings.jpg 113.4KB
To safely increase the revs to 3600 locate the governor spring and relocate to the lower hole as per pic. Remove the security plastic housing covering the lower screw. Wind that counter clockwise to allow it to rev properly.
Most new lawn mowers Maximum RPM is set way too low to cut and catch long or wet grass (about 2850 on HRU216) which is why their shutes clog and catchers don't fill. RPM limiter should be reset to above 90 M/sec but not greater than 96 M/sec blade tip speed.
I have my HRU216 set to maximum RPM of about 3,450 coupled with 4 high-lift blades...The only time I get a blockage is from operator error (failing to empty full catcher)...After all these machines are designed to be "finishing mowers" and not walk behind grass catching "paddock slashers".
Anyone trying to catch excessively long grass without blockages should consider the following:
1. Mow more frequently.
2. Mow clippings into windrows and collect using a hay-baler. (could then donate or sell bales to farmers).
3. Buy to right tool for the job. (a good trades person doesn't blame their tools).
Yours in property maintenance,
For Garoyda Garden Grooming.