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ASSEMBLY
Assembling the Bar and Chain
WARNING: Check the chain tension frequently when
operating the chainsaw. Never touch or adjust the
chain while the engine is running. The saw chain
is very sharp, always wear protective gloves when
performing maintenance to the chain.
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1 Ensure that the chain brake is not set by pulling the chain
brake lever/hand guard towards the front handle as shown
in Fig. 20. Refer to Safety-Chain Brake and Operation-Chain
Brake Sections for additional information.
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2. Remove the two (2) bar nuts (A, Fig. 21) and the clutch cover
(B).
3. Remove and discard the plastic shipping spacer (C, Fig. 22)
that has been installed on the bar studs in place of the bar
for shipping purposes.
4. Adjust the chain tensioning pin (D) fully towards the brake band
by turning the chain tensioning screw (L) counterclockwise as
shown in inset (Fig. 22).
5. The guide bar (F) contains a bar stud slot that fits over the bar
studs (N). The guide bar also contains two chain tensioning
pin holes (G) and two lubrication holes, one per side. The bar
is reversible and either tensioning pin hole may be utilized with
the chain tensioning pin.
6. Place the guide bar (F) onto the bar studs (N) as shown in
Fig. 22.
7. Position the guide bar (M) tip through the chain (H) loop as
shown in Fig. 23. The cutters on the top of the guide bar
should face toward the bar nose, in the direction of the chain
rotation. See insert (M) in Fig. 24.
8. Fit the chain (H) over the rim sprocket (E) and into bar groove.
CAUTION: Severe damage can occur to the rim
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sprocket, clutch drum, guide bar and chain, if the
chain is not correctly seated into the rim sprocket.
9. Replace the clutch cover (B). Turn the chain tensioning screw
(L) clockwise (as shown in Fig. 25, pag. 16) until the chain
tensioning pin (D) fits into the chain tensioning pin hole (G).
Install the two bar nuts (A). Tighten the bar nuts finger tight
only. The bar must be free to move for tension adjustment.
CAUTION: Failure to ensure that the chain tensioning
pin is in the chain tensioning pin hole will result in
severe damage to the chainsaw during reassembly
of the clutch cover.
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NOTE: If the clutch cover does not slide on freely, check that
the chain brake is not engaged. To disengage chain brake
with clutch cover removed, grasp clutch cover as shown in
Fig. 20 and pull back on chain brake lever / hand guard.
10. Remove all slack from chain by turning the chain tensioning
screw (L) clockwise, assuring that the chain seats into the bar
groove during tensioning.
11. Lift the tip of the guide bar up to check for sag, see Fig. 26,
pag. 16. Release the tip of the guide bar, and turn the chain
tensioning screw (L) 1/2 turn clockwise. Repeat this process
until sag does not exist.
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