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15
SERVICE AND ADJUSTMENTS
WARNING: Disconnect unit from
power source before performing service or
making adjustments.
CHAIN SHARPENING
Chain sharpening is a complicated task that
requires specialtools.Werecommendedyou
referchainsharpeningtoaprofessionalchain
sharpener.
CHAIN REPLACEMENT
WARNING: Wear protective gloves
when handling chain. The chain is sharp and
can cut you e ven when it is not moving.
It is normal for a new chain to stretch du ring the
first 15 minutes of operation. Y ou should re-
check your chain tension frequently and adjust
thechain tensionas required.See CHAINTEN-
SION section.
Replace the old chain when itbecomes worn or
damaged. Use only the Low-Kickback replace-
ment chain specified in the repair parts list.
TO REPLACE CHAIN:
1. Disconnect pruner from power source.
2. Remove bar clamp nut.
3. Remove bar clamp.
4. Turn adjusting screw by hand counter-
clockwise until adjusting pin just touches
the stop.
5. Slide guide bar behind sprocket until
guide bar stops against sprocket.
6. Remove the old chain.
7. Carefully remove new chain from pack-
age. Hold chain with the drive links as
shown.
CUTTERS MUST FACE IN
DIRECTION OF ROTATION
Tip of
Bar
Cutter
Drivelink
Cutters
Depth Gauge
Drive Links
8. Placechainover sprocket,fittingthedrive
links in the sprocket.
9. Fitbottom o f drive links between the teethin
the sprocket in the nose of the guide bar .
10. Fit chain drive links into bar groove.
11. Pull guide bar forward until chain is snug
inguidebar groove. Ensure alldrivelinks
are in the bar groove.
12. Now, install bar clamp making sure the
adjusting pin is positioned in the lower
hole in the guide bar.
Adjusting Pin
Lower
Hole
Guide B ar
13. Install bar clamp nut and finger tighten
only. Do not tighten any further at this
point. Proceed to the CHAIN ADJUST-
MENT section.
CHAIN ADJUSTMENT
See CHECK CHAIN TENSION in MAINTE-
NANCE section.
USER REPLACEABLE SERVICE PARTS
Assist Handle 530057546
Bolt Carriage, 1/4-20 530015786
Wing Nut 530016152
Bar 530044908
Chain 952051549
Hex Nut 530015917
Oil Cap 530053072
Bar A djusting Screw/Pin K it 530069110
Handlebar Accessory Kit 530071864
REPLACEMENT PART PART NUMBER