RedMax G621AVS - Manual (Page 21)

10. Maintenance of Saw Chain and Guide Bar
■ GUIDE BAR
• Reverse the bar occasionally to prevent partial
wear.
• The bar rail should always be a square. Check
for wear of the bar rail. Apply a ruler to the bar
and the outside of a cutter. If a gap is observed
between them, the rail is normal. Otherwise, the
bar rail is worn. Such a bar needs to be
corrected or replaced. (F36)
(1) Ruler
(2) Gap
(3) No gap
(4) Chain tilts
This saw is equipped with one of the following
low kickback bar/chain combinations:
WARNING
F36
RedMax Part Number
Bar Size Guide Bar Saw Chain
18” (45cm) 180RNDD176 72V66X
20” (50cm) 200RNDD176 72V70X
24” (60cm) 240RNDD176 72V81X
For replacement use only above bars and chains
or the following:
OREGON BAR
18, 20, or 24 inch POWER MATCH®
(pitch: 3/8”) Mount code #D176.
GB BAR
18, 20, or 24 inch PRO SPROCKET NOSE
(pitch: 3/8”) Mount code #D176.
PRO TOP BAR (pitch: 3/8”) Mount code E &
EX
OREGON CHAIN
72V
21 
1. Empty the fuel tank and run the engine out of
fuel.
2. Empty the oil tank.
3. Clean the entire unit.
4. Store the unit in a dry place out of the reach of
children.
11. Storage