Power smart DB7659A-22 User Manual page 24

Drive System
1 Drive control cable loose, broken or binding
2 Drive belt loose or damaged
No forward or reverse
3 Friction drive wheel is worn or damaged
drive movement when
4 Friction drive wheel wet or slipping
drive handle engaged
5 Wheels locked, wont move
6 Wheel to axle pins broken or missing
1 Speed control lever loose or damaged, not
moving speed control cables
Drive speed control
2 Speed control cables loose, damaged or
stuck in gear or wont
binding
change gears
3 Drive speed lower control lever or friction
wheel damaged or mechanically binding
1 Speed control cables misadjusted, loose,
Drive speed control
damaged or binding
allows only one
direction forward or
reverse
1 Drive control cable binding, wont release
Drive engaged when
drive control handle
2 Friction drive wheel return spring broke or
released
missing
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
4 Auger belt loose, slipping, worn or damaged
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)
Auger not rotating
8 Impeller damaged
when auger control
9 Impeller not connected to impeller shaft,
handle engaged or Not
impeller or shaft damaged or roll pins broken
blowing snow or Poor
snow blowing
10 Inadequate amount of snow
performance
11 Snow too heavy or wet or has other material
in it
12 Forward speed too fast while blowing snow,
overload
13 Engine not running at rated speed under
load
1 Auger tension pulley arm return spring
broken or missing
2 Auger tension pulley arm stuck or binding
3 Auger tension pulley arm or pulley
misaligned or damaged
4 Foreign material on pulleys and belt, oil,
Auger belt broken, or
grease, dirt etc.
repeated failure
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
1 Auger cable tension too tight, belt to tight
Auger rotating when
auger control handle
2 Auger tension pulley arm return spring
released
broken or missing
1 Loose or damaged parts, auger blades bent
or impeller damaged or binding
Excessive Vibration
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1 Repair or adjust drive control cable and adjust tension, see Auger and Drive Cable Adjustment
2 Check drive belt tension pulley for damage or incorrect tension, repair as necessary. Replace drive belt.
3 Replace friction drive wheel
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 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 Repair, adjust or replace as necessary
3 Inspect lower control lever and mechanical connection to friction drive wheel and slide shaft for damage 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 Repair, replace cable as necessary
2 Replace spring, adjust cable as necessary
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 Replace auger belt or adjust auger control cable tension, see Auger and Drive Cable Adjustment
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
8 Replace impeller
9 Replace roll pins or impeller as necessary
10 Ingest an adequate amount of snow to allow snow to compact enough to be moved through augers and
into impeller.
11 Depending on ambient temperature, humidity levels, and overall climate conditions including actual snow
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.
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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.
1 Replace tension arm return spring
2 Repair or replace tension arm as necessary
3 Repair, replace or align tension arm and or pulley 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)
1 Adjust auger cable tension, see Auger and Drive Cable Adjustment
2 Replace tension arm return spring
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.