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SERVUCE AND ADJUSTMENTS
CHAIN REPLACEMENT (Fig. 37,38, 39 & 40)
_ AUTION: Wear protective gloves when t
handling chain, The chain is sharp and
can cut you even when it is not moving,
o Move on/stop switch to the "STOP" position.
o Replace the old chain when it becomes worn or dam-
aged.
. Use only the Low-Kickback replacement chain speci-
fied in the "Product Specifications"
• See your Sears Service Center to replace and sharp-
en individual cutters for matching your chain.
• Loosen and remove the 2 bar clamp nuts.
= Remove bar damp°
- Remove the old chain,
o Turn adjusting screw by hand counterclockwise until
adjusting pin just touches the stop
• Carefully remove new chain from package, Hold chain
with the drive links as shown in Fig 38
, Place chain over and behind the clutch,
o Fit bottom of drive links between teeth in sprocket
nose.
° Fit chain drive links into top of guide bar Fig 39.
, ....
Bar CI_ __
__Bar Clamp Nuts
Figure 37
_ Cutters Depth Gauge
Figure 38
• Pull guide bar forward until chain issnug in guide bar
grooves.
o Now, install bar clamp making sure the adjusting pin is
positioned in the lower hole {nthe guide bar.
Bar Clamp
Figure 39
° Install bar clamp nuts and finger tighten only Do not
tighten any further at this point.
, Now proceed to the "Chain Adjustment" section
-20.
Figure 40
CHAIN ADJUSTMENT (Fig. 41, 42, 43 & 44)
= Roll chain around guide bar to ensure kinks do not
exist (rotates freely).
o Loosen bar clamp nut&
o Turn adjusting screw clockwise until chain just barely
touches the bottom of guide bar.
_-'--___ j_A/djustingScrew
Bar Clamp Nuts Guide Bar
Figure 41
o Lift up tip of guide bar to check for sag, release tip of
guide bar, then turn adjusting screw t/4 turn clock-
wise. Repeat this step until a sag does not exist.
o While lifting tip of guide bar, tighten bar clamp nuts
with the bar tool (provided), Torque 10-15 ftqb&
Adjusting Screw 1
Bar Tool-,---_
Figure 42
'1"ocheck chain tension:
o Use the screwdriver end of the bar tool to move chain
around the guide bar (Fig 44).
o If chain does not rotate, it is too tight - slightly loosen
bar clamp nuts and turn adjusting screw 1/4 turn
counterclockwise. Retighten bar clamp nuts.
= If chain is too loose, it will sag below the guide bar
(Fig 43).
Figure 43
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