Installation Instructions; Guide Bar. Saw Chain And Chain Brake - McCulloch MAC 110 Owner's Manual

INSTALLATION INSTRUCTIONS
GUIDE BAR, SAW CHAIN AND CHAIN BRAKE INSTALLATION
CAUTION: Do not attempt to start or run the engine until the
BAR, SAW CHAIN and CHAIN BRAKE have been installed.
WARNING: Handle the CHAIN BRAKE carefully when it is
removed from the saw because it is under tension.
1. Remove the upper retaining nut and bolt, and the lower
retaining nut. Remove the CHAIN BRAKE. This is only
necessary when the CHAI N BRAKE is assembled on the
unit. @
2. Slide the slotted end of the bar over the bar mounting
bolt and push it back toward the sprocket as far as it
will go.@
3. Spread the chain out in a loop with the cutting edges of
the chain pointing clockwise around the loop.
4. Tilt the top of the chain away from you so that you can
slide it edgewise over the top of the drum (under the
saw housing and sawdust deflector).@
5. Guide the chain around and behind the drum (between
the drum and the muffler) and onto the sprocket.@
6. Move the chain back and forth to make sure it is in
proper mesh with the sprocket and lined up with the
bar groove.@
7. Guide the chain center links into the bar groove all the
way around the bar. Pull the nose of the bar out to take
up all the slack in the chain. @
8. Make certain the CHAIN BRAKE lever is pulled back to
the disengaged position (chain can move).@
9. Install the CHAIN BRAKE, being certain the brake band
is fitted carefully around the outside of the clutch drum,
and the CHAI N BRAKE lever is set properly onto the
CHAI N BRAKE.
@
CAUTION: THE CHAIN BRAKE CAN BE CRACKED OR
BROKEN if carelessly installed. The chain tension adjust-
ment nut (tang) must be properly positioned in the
adjustment hole in the bar before tightening the lower
retaining nut. There should be no large gaps between
the CHAI N BRAKE and the saw housing, and the front
should fit snug against the bar.
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10. Turn the chain tension adjustment screw in or out to
align the nut with the bar hole.
®
11. Install the lower retaining nut finger tight.
12. Hold the nose of the bar up and turn the adjustment
screw clockwise to tension the chain. It should be a
snug fit all around the bar.
@
NOTE: The chain has the proper tension when, with the
bar locked in the uppermost position, it has a snug fit all
around and will pull around the bar easily by hand. No
droop or sag of the chain is permitted.
,
13. Holding the nose of the bar up tighten the lower retain-
ing nut securely.
14. Install the retaining bolt and nut to the brake lever and
tighten securely.
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