Maintaining The Guide Bar - Ryobi RY5020 Manuel D'utilisation

 Use a flat file and a depth gauge jointer to lower
all gauges uniformly. Use a .025 in. depth gauge
jointer. After lowering each depth gauge, restore
original shape by rounding the front. Be careful
not to damage adjoining drive links with the
edge of the file.
 Depth gauges must be adjusted with the flat file in
the same direction the adjoining cutter was filed
with the round file. Use care not to contact cutter
face with flat file when adjusting depth gauges.

MAINTAINING THE GUIDE BAR

See Figure 56.
CAUTION:
Make sure the chain has stopped before you
do any work on the saw.
Proper maintenance will maximize the useful life
of the guide bar.
Each day of use:
Clean the bar and check for wear and damage.
Feathering or burring of the bar rails is a normal
process of bar wear, but such faults should be
smoothed with a file as soon as they occur.
Each week of use:
 Reverse the guide bar on the saw to distribute
the wear.
 Lubricate the sprocket at the end of the guide
bar using a grease gun in the sprocket lubrica-
tion hole.
 Turn the guide bar and check that the lubrication
holes and chain groove are free from impurities.
A bar with any of the following faults should be
replaced immediately:
 Wear inside the bar rails that permits the chain
to lay over sideways
 Bent guide bar
 Cracked or broken rails
 Spread rails
MOUNTING THE SAFE-T-TIP™ NOSE
GUARD
See Figures 57 - 58.
 Stop the engine and disconnect the spark plug
wire.
MAINTENANCE
TIGHTEN 3/4
OF A TURN
 Mount the SAFE-T-TIP™ on the bar nose.
 Fit the locking tab in the recessed slot in the
guide bar.
 Tighten the mounting screw with wrench until
snug.
 From the snug position, tighten the mounting
screw an additional 3/4 of a turn using a wrench.
MAINTAINING THE SAFE-T-TIP™
NOSE GUARD
See Figures 57 - 58.
Make sure the chain has stopped before you
do any work on the saw.
Page 32 — English
LUBRICATION HOLES
CAUTION:
SPROCKET
LUBRICATION HOLE
Fig. 56
MOUNTING
SCREW
SAFE-T-TIP™
Fig. 57
Fig. 58