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SNOW DEVIL
Troubleshooting
Troubleshooting
Snow Blower - DB7659 and DB7651 (with LCT 208cc engine)
Problem
Possible Causes
Remedy
WARNING - Before attempting to make any inspections, repairs or adjustments, stop the engine, wait for all moving parts to stop moving and carefully disconnect the engine spark plug wire. If tipping or
turning the snow blower is required for any inspection or repair, first wait until the engine is cool to the touch and then drain the engine of all fuel and oil into suitable containers and store or dispose of in a
proper manner.
Engine Systems
- Note: For all engine problems, see the Engine Operator's manual for additional troubleshooting information and engine manufacturer contact information.
1
2
3
4
5
Engine ignition switch in OFF position
Spark plug wire disconnected
Faulty spark plug
Engine flooded with fuel
Safety key not inserted in engine ignition
6 Choke not in START position
Engine Fails to Start
(Engine cranks over)
7
8
9
10
Engine not primed with fuel
Fuel tank empty
Water in fuel
Fuel incorrect, old or stale, will not ignite
11 Blocked or clogged fuel system or line
12 Fuel shut-off valve in OFF position
13 Internal engine problem
Engine recoil starter
will not pull out / hard
to pull
Engine electric starter
will not crank engine
Engine Overheats
1
2
3
4
5
Position engine ignition switch to ON
Connect wire to spark plug
Clean, adjust gap, or replace spark plug , see Engine Operator's manual
Discontinue choke or primer use, clean or replace spark plug.
Insert key fully into the switch
6 Move choke to START position, after engine starts slowly move to RUN position as engine speed and
operation stabilizes at the set rpm. If engine still does not start move to half choke and crank engine.
7 Prime engine, see Engine Operator's manual
8 Fill tank with clean, fresh gasoline
9 Empty fuel tank & carburetor, refill with fresh, clean gasoline
10 Empty and clean fuel tank & carburetor, refill with fresh, clean gasoline. (Note: Fuel may become stale
after 30 days in some cases)
11 Clean fuel system or line
12 Turn fuel shut-off valve to ON position
13 See Engine Operator's manual, contact service center or engine manufacturer.
1 Frozen recoil starter or engine too cold to
turn over
1 Move snow blower to warm space and allow it to warm up.
1 Extension cord is not properly attached to
electric starter terminal
2 No power from power supply, tripped
breaker
3 Extension cord wire gauge is too small or
cord is too long
1 Re-insert extension cord into electric starter terminal.
1 Cooling air flow restricted to engine
2 Low oil level
1 Remove air flow restrictions from engine
2 Check oil level on dipstick. If oil is not visible on dipstick, check oil level using LOWER fill plug BEFORE
adding oil. Oil should be visible and to the top 2 threads of LOWER fill plug (not the dipstick tube). Do not
over fill with oil, see Engine Operator's manual for more information. Note: Only use 5W-30, 4-stroke
automotive detergent oil with an API SERVICE rating of SJ or higher. Engine oil capacity [LCT 208cc
engine] - 16 oz. (0.473 liter). The use of automotive synthetic oil is acceptable.
2 Check power supply extension cord is attached to.
3 Use proper rated and length extension cord, see Engine Operator's manual
Engine Systems (Continued)
1 CHOKE in ON or partial ON position
2 Water in fuel
3 Fuel incorrect, old or stale
4
5
6
Engine runs erratic,
7
stalls or seems low on 8
power
9
10
Engine smokes
excessively
Blocked or clogged fuel system or line
Carburetor is in need of cleaning
Spark plug wire loose
Faulty spark plug
Gas cap vent hole plugged
Engine oil over filled
Engine oil level low or empty
1 Move CHOKE lever to RUN
2 Empty fuel tank & carburetor, refill with fresh, clean gasoline
3 Empty and clean fuel tank & carburetor, refill with fresh, clean gasoline. (Note: Fuel may become stale
after 30 days in some cases)
4 Clean fuel system or line
5 Clean fuel system and carburetor
6 Connect and tighten spark plug wire
7 Clean, adjust gap, or replace spark plug , see Engine Operator's manual
8 Remove ice and snow from gas cap.
9 Drain oil to proper level. Oil should not be above the top 2 threads of LOWER fill plug.
10 Check oil level on dipstick. If oil is not visible on dipstick, check oil level using LOWER fill plug BEFORE
adding oil. Oil should be visible and to the top 2 threads of LOWER fill plug (not the dipstick tube). Do not
over fill with oil, see Engine Operator's manual for more information. Note: Only use 5W-30, 4-stroke
automotive detergent oil with an API SERVICE rating of SJ or higher. Engine oil capacity [LCT 208cc
engine] - 16 oz. (0.473 liter). The use of automotive synthetic oil is acceptable.
11 Engine overheating
11 See "Engine Overheats"
1 Engine oil over filled
2 Internal engine problem
1 Drain oil to proper level. Oil should not be above the top 2 threads of LOWER fill plug.
2 See Engine Operator's manual, contact service center or engine manufacturer.
1 Drive control cable loose, broken or binding
1 Repair or adjust drive control cable and adjust tension, see Auger and Drive Cable Adjustment
2 Drive belt loose or damaged
2 Check drive belt tension pulley for damage or incorrect tension, repair as necessary. Replace drive belt.
3 Friction drive wheel is worn or damaged
3 Replace friction drive wheel
4 Friction drive wheel wet or slipping
5 Wheels locked, wont move
6 Wheel to axle pins broken or missing
4 Allow snow blower to dry and or warm up or adjust drive cable tension as necessary
5 Release drive control handle then pull machine backward to try and unlock axle. If axle will not unlock,
check to ensure drive friction plate is not engaged to drive friction wheel, also check axle drive gear, axle
and bushings for damage or binding.
6 Replace pins attaching wheels to axle
1 Speed control lever loose or damaged, not
moving speed control cables
1 Check speed control lever and cables for damage or loose or missing parts. Repair or replace parts as
needed, ensure pivot stud spring tension is correct, adjust pivot nut spring tension as needed.
2 Speed control cables loose, damaged or
binding
3 Drive speed lower control lever or friction
wheel damaged or mechanically binding
2 Repair, adjust or replace as necessary
1 Speed control cables misadjusted, loose,
damaged or binding
1 Check speed control lever and cables for damage or loose or missing parts. Repair or replace parts as
needed. Adjust drive speed control cables, see Drive Speed Control Cables Adjustment
1 Drive control cable binding, wont release
1 Repair, replace cable as necessary
2 Friction drive wheel return spring broke or
missing
2 Replace spring, adjust cable as necessary
Drive System
No forward or reverse
drive movement when
drive handle engaged
Drive speed control
stuck in gear or wont
change gears
Drive speed control
allows only one
direction forward or
reverse
Drive engaged when
drive control handle
released
3 Inspect lower control lever and mechanical connection to friction drive wheel and slide shaft for damage or
binding.
Auger System
1 Chute assembly clogged
2 Auger shear bolts broken
3 Foreign object in auger or impeller causing
auger to stop without shearing pins
1 Clean chute and inside of auger housing with clean-out tool
2 Replace shear bolts. Check each auger blade shear bolt.
3 Remove object from auger or impeller areas
4 Auger belt loose, slipping, worn or damaged
4 Replace auger belt or adjust auger control cable tension, see Auger and Drive Cable Adjustment
5 Auger belt tension cable loose, damaged or
binding
6 Auger blade(s) damaged or bent
7 Auger gearbox mechanical damage, auger
drive system not rotating freely (binding)
5 Repair, adjust or replace as necessary
6 Replace auger blade(s)
7 Check bearings, bushings and all system parts for damage or mechanical binding. Repair or replace as
necessary using proper lubrication
Auger not rotating
when auger control
handle engaged or Not 8 Impeller damaged
8 Replace impeller
blowing snow or Poor 9 Impeller not connected to impeller shaft,
9 Replace roll pins or impeller as necessary
snow blowing
impeller or shaft damaged or roll pins broken
performance
10 Inadequate amount of snow
10 Ingest an adequate amount of snow to allow snow to compact enough to be moved through augers and
into impeller.
11 Snow too heavy or wet or has other material 11 Depending on ambient temperature, humidity levels, and overall climate conditions including actual snow
in it
conditions, there may be no solution as snow may be too wet or compacted to move or throw. If snow is
filled with foreign material, damage to the snow thrower may result. Avoid snow with foreign materials.
Auger belt broken, or
repeated failure
Auger rotating when
auger control handle
released
Excessive Vibration
12 Forward speed too fast while blowing snow,
overload
13 Engine not running at rated speed under
load
12 Slow and reduce snow ingestion, allow engine to maintain it’s maximum rpm.
1 Auger tension pulley arm return spring
broken or missing
2 Auger tension pulley arm stuck or binding
1 Replace tension arm return spring
3 Auger tension pulley arm or pulley
misaligned or damaged
4 Foreign material on pulleys and belt, oil,
grease, dirt etc.
5 Auger pulleys misaligned, loose, damaged
or bent
6 Incorrect or damaged auger belt
7 Incorrect auger belt tension
8 Auger belt guide pin not adjusted
3 Repair, replace or align tension arm and or pulley as necessary
1 Auger cable tension too tight, belt to tight
1
2 Auger tension pulley arm return spring
broken or missing
2 Replace tension arm return spring
1 Loose or damaged parts, auger blades bent
or impeller damaged or binding
1 Stop engine immediately and disconnect spark plug wire. Check and tighten all bolts and nuts. Inspect
auger and impeller for damage or foreign objects restricting rotation. If vibration continues, stop operation
and contact service center or call Amerisun customer service for assistance.
13 Have engine inspected and RPM tested under load to ensure engine is operating at the recommended
RPM. Check for machine mechanical binding causing engine to not run at rated RPM.
2 Repair or replace tension arm as necessary
4 Clean belt and pulleys as necessary, replace belt if necessary
5 Replace or align pulleys as necessary
6 Replace with correct size and type belt
7 Adjust auger cable tension, see Auger and Drive Cable Adjustment
8 Adjust belt guide pin to within 1/8 to 3/16 in. from pulley. (Guide pin keeps belt in pulley when disengaged)
Adjust auger cable tension, see Auger and Drive Cable Adjustment
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