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Ryobi RY40503 Manual Del Operador página 27

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TOP PLATE FILING ANGLE
See Figure 38.
 CORRECT 30° – File holders are marked with
guide marks to align file properly to produce
correct top plate angle.
 LESS THAN 30° – For Cross Cutting.
 MORE THAN 30° – Feathered Edge Dulls
Quickly.
SIDE PLATE ANGLE
See Figure 39.
 CORRECT – 80° Produced automatically if cor-
rect diameter file is used in file holder.
 HOOK – "Grabs" and dulls quickly. Increases
potential of KICKBACK.
Results from using a file with diameter too small,
or file held too low.
 BACKWARD SLOPE – Needs too much feed
pressure, causes excessive wear to bar and
chain.
Results from using a file with diameter too large,
or file held too high.
DEPTH GAUGE CLEARANCE
See Figures 40 - 41.
 The depth gauge should be maintained at a
clearance of .025 in. Use a depth gauge tool
for checking the depth gauge clearances.
 Every time the chain is filed, check the depth
gauge clearance.
Use a flat file and a depth gauge jointer to lower
all gauges uniformly. Depth gauge jointers are
available in .020 in. to .035 in. 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.
MAINTENANCE
CORRECT TOP PLATE
FILING ANGLE
CORRECT SIDE
PLATE FILING
DEPTH GAUGE JOINTER
27 - English
INCORRECT TOP PLATE FILING
THAN 30°
30°
INCORRECT SIDE PLATE
FILING ANGLE
ANGLE
HOOK
80°
SHAPE BY ROUNDING
ANGLE
LESS
MORE
THAN 30°
Fig. 38
BACKWARD
SLOPE
Fig. 39
FLAT FILE
Fig. 40
RESTORE ORIGINAL
THE FRONT
Fig. 41

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