Ryobi RPP254JO Original Instructions Manual page 29

MAINTENANCE
5. Place the drive case cover and install the
bar nut.
6. Using the combination wrench, tighten the
bar nut, finger tight only. The bar must be free
to move for tension adjustment.
7. Remove all slack from chain by turning the
chain tensioning screw clockwise, assuring
that the chain seats into the bar groove
during tensioning.
Lift the tip of the bar up to check for sag.
Release the tip of the bar, and turn the chain
tensioning screw 1/2 turn clockwise. Repeat
this process until sag does not exist.
NOTE: Hold the tip of the bar up and tighten
the bar nut securely. The chain tension is
correct when the gap is about 3-4 mm.
NOTE: If the chain is too tight, it will not
rotate. Loosen the bar nut slightly and turn
adjusting screw 1/4 turn counterclockwise.
Lift the tip of the bar up and retighten bar nut
8. Fully tighten the bar nut and drive case cover.
Bar nut should have at least 4 turns after
finger tight.
5
6
2
7
2
1
8
2
1
2
1
3-4 mm
1
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