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TROUBLE SHOOTING CONTINUED
POSSIBLE CAUSE AND CHECK POSSIBLE REMEDY
...... _ _ _=_:---_-_ :;_ _;z_: .... -.... " ----':--_-_ _ --__ .... :_===_ "_==-_-'_='_
ENGINE BACKFIRES OR MISFIRES
Fuel Mix improper or contaminated
Spark Plug fouled
Solid State intermittently shorting. CHECK: loose or bare
wires or loose assemblies
Defective Pyramid Reed Assembly
CHAIN TURNS WHEN ENGINE IS IDLING
Carburetor misadjusted
Clutch Springs broken or weak
Clutch Bearing seized or dry
I II!!111"[!_ _
Drain tank and refill with freshly mixed fuel, page 4
Clean Spark Plug and regap or replace, page 14
Tighten assemblies, wrap wires
Replace
Chain tensioned too tight
Guide Bar Rails pinched
Clutch slipping
Carburetor misadjusted
Spr0cket Nose Bearing seized
CHAIN STOPS WITHIN A CUT
Chain cutter tops not filed flat
Follow Carburetor Adjustment instructions, page t2
Replace Clutch Springs, page 14
Lubricate or replace
......... m ._.&m_ i iiiP
CHAIN WILL NOT TURN WHEN THROTTLE LEVER IS sQUEEZED
Follow Chain Tensioning Instructions, page 4
Repair Guide Bar or replace, page 11
Replace Clutch Shoes, page 14
Follow Carburetor Adjustment Instructions, page 12
Replace Guide Bar
J 'I I l'llr " I'I' iiii iiiiiii,,iiiiii ii iiii .................._,: .... i] 1,1, _!: _ ....................
File Chain correctly or rotate or replace sharpening stone
(9t7.353770 & 9t7.353771 ONLY) pages 9- 11
Guide Bar burred or bent or rails uneven Repair Guide Bar or replace, page 11
Clutch slipping excessively Replace Clutch Shoes, page 14
_- i i..... ..... ., iii .......... ;i';...... ii ' '-iiiii ;i"i ii ..... :- _-
CHAIN CUTS UNSATISFACTORI LY OR PULLS QUICKLY
Cutters dull, improperly sharpened, Depth Gaugestoo high
Chain tension too tight or loose
Chain contact with dirt, sand, or frozen wood
.......................................... -...... - '1 _ _ "'
CHAIN OPERATES ROUGHLY, CHATTERS OR GRABS
Chain tension too loose
Cutters not properly sharpened
Worn Chain Sprocket
Chain rivet bearing wear due to use in dirt or sand or inad_
equate chain oiling
Several cutters damaged through striking buried foreign
material
W'I'I ......
CUT TENDS TO SLANT
Improper use
Bent, wor_ or burred Guide Bar
Improper Chain sharpening, depth gauge lowering or stone
rotation (917.353770 & 917.353771 ON LY)
I1"1"1 ....- _ °_ .............
CHAIN BREAKAGE
Maintain proper Chain tension
Guide Bar Rails pinched
Cutting frozen wood
CHAIN JUMPS OFF
Chain tension too loose
Worn Guide Bar
Broken Chain Side Link
Worn Chain Sprocket
'11I'111111111IIi II
GUIDE BAR CHIPPED ON EDGES
Applying excessive pressureto cut
Improper Guide Bar Maintenance
Improper Chain Lubrication,, CHECK: page6
Follow Chain Sharpening Instructions, pages 9 - 1t
Follow Chain Tensio=ning Instructions, page 4
Resharpen chain, pages9 - 11
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Follow Chain Tensioning Instructions, page 4
Follow Chain Sharpening Instructions, pages 9 - 11
Replace, page 11
Replace Chain
Contact your nearest Sears Center for Cutter replacement
........... . ................... ' ................I!llFII
Hold and guide Saw properly, page 6
Repair or replace, page 11
Follow Chain Sharpening and PowertShar_ Maintenance,
pages9 - 11
m ....
Follow Chain Tensioning Instructions, page 4
Repair Guide Bar or replace, page 11
Keep Chain very sharp, pages 9 - 11
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Follow Chain Tensioning Instructions, page4
Replace
Contact your nearest Sears Service Center for Chain repair
Replace, page 11
'!!! Iq" "1_/_ : ' '!! II ................
Keep chain sharp, pages 9 - 11
Remove burrs asthey form, page 11
Keep oil tank full, oil lines open and Manual Oiler operational,
page 4
III III III I II1" ,,1 ,i0 ..............................
Replace
Blow out with compressed air
Replace
II II IIII II IIIIII
MANUAL OIL PUMP DOES NOT PUMP OIL
Clogged Oil Pump
Clogged Oil Line
Clogged Oil Filter
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