General Maintenance - Black Max BM5020 Manual Del Operador

GENERAL MAINTENANCE

Avoid using solvents when cleaning plastic parts.
Most plastics are susceptible to damage from vari-
ous types of commercial solvents and may be dam-
aged by their use. Use clean cloths to remove dirt,
dust, lubricant, grease, etc.
WARNING:
Do not at any time let brake fluids, gasoline,
petroleum-based products, penetrating oils, etc.,
come in contact with plastic parts. Chemicals can
damage, weaken or destroy plastic which may
result in serious personal injury.
LUBRICATION
All of the bearings in this product are lubricated with
a sufficient amount of high grade lubricant for the
life of the unit under normal operating conditions.
Therefore, no further lubrication is required.
REPLACING THE GUIDE BAR AND CHAIN
See Figures 32 - 41.
DANGER:
Never start the engine before installing the guide
bar, chain, clutch cover, and clutch drum. Without
all these parts in place, the clutch can fly off or
explode, exposing the user to possible serious
injury.
WARNING:
To avoid serious personal injury, read and under-
stand all the safety instructions in this section.
 Stop the engine and disconnect the spark plug
wire before you work on the saw.
 Make sure the chain brake is not set by pulling the
chain brake lever/hand guard towards the front
handle to the RUN POSITION.
NOTE: When replacing the guide bar and chain,
always use the specified bar and chain listed in the
Bar and Chain Combinations section later in this
manual.
 Wear gloves when handling the chain and bar.
These components are sharp and may contain
burrs.
MAINTENANCE
 Remove the bar mounting nuts using the combina-
tion wrench provided or a 13 mm socket wrench.
 Remove the clutch cover.
 Remove the bar and chain from the mounting
surface.
 Remove the old chain from the bar.
 Lay out the new saw chain in a loop and straighten
any kinks. The cutters should face in the direction
Page 25 — English
BAR MOUNTING NUTS
CLUTCH
COVER
BAR MOUNTING
RUN
POSITION
Fig. 32
COMBINATION
WRENCH
Fig. 33
NUTS
Fig. 34