RMA 510
English
8
WARNING
Folding or unfolding the handle 
improperly can damage the mower's 
cable controls and affect the proper 
function of the on/off mechanism. To 
reduce the risk of damage, do not pinch 
or crimp the cables when folding the 
unit. Inspect the cables after unfolding 
the mower and before inserting the 
battery to ensure that the cables have 
not been damaged in any way.
WARNING
Never operate your lawn mower if it is 
damaged, improperly adjusted or 
maintained, or not completely and 
securely assembled.
Keep the handles of the mower clean 
and dry at all times; it is particularly 
important to keep them free of moisture, 
pitch, oil, grease or resin in order for you 
to maintain a firm grip and properly 
control your lawn mower.
WARNING
The cutting blade must be properly 
tightened and in good operating 
condition. Remove the battery and fuse 
key and inspect the condition and 
tightness of the cutting blade before 
starting work and at regular intervals. 
Replace a damaged cutting blade 
before using the mower.
Do not use your lawn mower if safety 
devices are damaged, the coast down 
brake does not operate or safety devices 
are not properly mounted and in working 
order.
Inspect the grass bag frequently and 
replace with an authorized replacement 
if there are signs of wear or 
deterioration. Never use your mower 
with a damaged grass bag.
Check contacts in the battery 
compartment for foreign matter. Keep 
the compartment clean.
Insert the battery correctly.
Operate the mower only with the battery 
compartment closed.
WARNING
WARNING
If a rotating metal blade strikes a rock or 
other hard object, sparks may be 
created, which can ignite flammable 
materials under certain circumstances. 
Flammable materials can include dry 
vegetation and brush, particularly when 
weather conditions are hot and dry. 
When there is a risk of fire or wildfire, do 
not use metal blades around flammable 
materials or around dry vegetation or 
brush. Contact your local fire authorities 
or the U.S. Forest Service if you have 
any question about whether vegetation 
and weather conditions are suitable for 
the use of a metal blade.
WARNING
Your lawn mower is a one-person 
machine. Do not allow other persons in 
the general work area, even when 
starting.
During Operation
Holding and Controlling the Lawn 
Mower
Always hold the unit firmly with both 
hands on the handle and switch lever 
while you are working. Wrap your fingers 
and thumbs around the handle and 
switch lever when cutting.
Never attempt to operate your lawn 
mower with one hand. Loss of control 
may result in serious or fatal injury.
Inspect the work area 
before you start the lawn 
mower: to reduce the risk 
of injury, clear the work 
area of stones, glass, 
pieces of metal, trash and 
other objects that could 
be thrown by the cutting 
blade.